p5.js v0.6.1 & p5.play in a single file

p5&p5play.js

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b="",c=15,d=["0","1","2","3","4","5","6","7","8","9",".","E","E-",null,"-"];;){var e=a.parseByte(),f=e>>4,g=15&e;if(f===c)break;if(b+=d[f],g===c)break;b+=d[g]}return parseFloat(b)}function ta(a,b){var c,d,e,f;if(28===b)return c=a.parseByte(),d=a.parseByte(),c<<8|d;if(29===b)return c=a.parseByte(),d=a.parseByte(),e=a.parseByte(),f=a.parseByte(),c<<24|d<<16|e<<8|f;if(30===b)return sa(a);if(b>=32&&b<=246)return b-139;if(b>=247&&b<=250)return c=a.parseByte(),256*(b-247)+c+108;if(b>=251&&b<=254)return c=a.parseByte(),256*-(b-251)-c-108;throw new Error("Invalid b0 "+b)}function ua(a){for(var b={},c=0;c<a.length;c+=1){var d=a[c][0],e=a[c][1],f=void 0;if(f=1===e.length?e[0]:e,b.hasOwnProperty(d)&&!isNaN(b[d]))throw new Error("Object "+b+" already has key "+d);b[d]=f}return b}function va(a,b,c){b=void 0!==b?b:0;var d=new Ne.Parser(a,b),e=[],f=[];for(c=void 0!==c?c:a.length;d.relativeOffset<c;){var g=d.parseByte();g<=21?(12===g&&(g=1200+d.parseByte()),e.push([g,f]),f=[]):f.push(ta(d,g))}return ua(e)}function wa(a,b){return b=b<=390?Pe[b]:a[b-391]}function xa(a,b,c){for(var d,e={},f=0;f<b.length;f+=1){var g=b[f];if(Array.isArray(g.type)){var h=[];h.length=g.type.length;for(var i=0;i<g.type.length;i++)d=void 0!==a[g.op]?a[g.op][i]:void 0,void 0===d&&(d=void 0!==g.value&&void 0!==g.value[i]?g.value[i]:null),"SID"===g.type[i]&&(d=wa(c,d)),h[i]=d;e[g.name]=h}else d=a[g.op],void 0===d&&(d=void 0!==g.value?g.value:null),"SID"===g.type&&(d=wa(c,d)),e[g.name]=d}return e}function ya(a,b){var c={};return c.formatMajor=Ne.getCard8(a,b),c.formatMinor=Ne.getCard8(a,b+1),c.size=Ne.getCard8(a,b+2),c.offsetSize=Ne.getCard8(a,b+3),c.startOffset=b,c.endOffset=b+4,c}function za(a,b){return xa(va(a,0,a.byteLength),We,b)}function Aa(a,b,c,d){return xa(va(a,b,c),Xe,d)}function Ba(a,b,c,d){for(var e=[],f=0;f<c.length;f+=1){var g=new DataView(new Uint8Array(c[f]).buffer),h=za(g,d);h._subrs=[],h._subrsBias=0;var i=h.private[0],j=h.private[1];if(0!==i&&0!==j){var k=Aa(a,j+b,i,d);if(h._defaultWidthX=k.defaultWidthX,h._nominalWidthX=k.nominalWidthX,0!==k.subrs){var l=j+k.subrs,m=ra(a,l+b);h._subrs=m.objects,h._subrsBias=qa(h._subrs)}h._privateDict=k}e.push(h)}return e}function Ca(a,b,c,d){var e,f,g=new Ne.Parser(a,b);c-=1;var h=[".notdef"],i=g.parseCard8();if(0===i)for(var j=0;j<c;j+=1)e=g.parseSID(),h.push(wa(d,e));else if(1===i)for(;h.length<=c;){e=g.parseSID(),f=g.parseCard8();for(var k=0;k<=f;k+=1)h.push(wa(d,e)),e+=1}else{if(2!==i)throw new Error("Unknown charset format "+i);for(;h.length<=c;){e=g.parseSID(),f=g.parseCard16();for(var l=0;l<=f;l+=1)h.push(wa(d,e)),e+=1}}return h}function Da(a,b,c){var d,e={},f=new Ne.Parser(a,b),g=f.parseCard8();if(0===g)for(var h=f.parseCard8(),i=0;i<h;i+=1)d=f.parseCard8(),e[d]=i;else{if(1!==g)throw new Error("Unknown encoding format "+g);var j=f.parseCard8();d=1;for(var k=0;k<j;k+=1)for(var l=f.parseCard8(),m=f.parseCard8(),n=l;n<=l+m;n+=1)e[n]=d,d+=1}return new Z(e,c)}function Ea(a,b,c){function 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o=b+j.private[1],p=Aa(a,o,j.private[0],g.objects);if(c.defaultWidthX=p.defaultWidthX,c.nominalWidthX=p.nominalWidthX,0!==p.subrs){var q=o+p.subrs,r=ra(a,q);c.subrs=r.objects,c.subrsBias=qa(c.subrs)}else c.subrs=[],c.subrsBias=0;var s=ra(a,b+j.charStrings);c.nGlyphs=s.objects.length;var t=Ca(a,b+j.charset,c.nGlyphs,g.objects);0===j.encoding?c.cffEncoding=new Z(Qe,t):1===j.encoding?c.cffEncoding=new Z(Re,t):c.cffEncoding=Da(a,b+j.encoding,t),c.encoding=c.encoding||c.cffEncoding,c.glyphs=new Ve.GlyphSet(c);for(var u=0;u<c.nGlyphs;u+=1){var v=s.objects[u];c.glyphs.push(u,Ve.cffGlyphLoader(c,u,Ea,v))}}function Ha(a,b){var c,d=Pe.indexOf(a);return d>=0&&(c=d),d=b.indexOf(a),d>=0?c=d+Pe.length:(c=Pe.length+b.length,b.push(a)),c}function Ia(){return new Ke.Record("Header",[{name:"major",type:"Card8",value:1},{name:"minor",type:"Card8",value:0},{name:"hdrSize",type:"Card8",value:4},{name:"major",type:"Card8",value:1}])}function Ja(a){var b=new Ke.Record("Name INDEX",[{name:"names",type:"INDEX",value:[]}]);b.names=[];for(var c=0;c<a.length;c+=1)b.names.push({name:"name_"+c,type:"NAME",value:a[c]});return b}function Ka(a,b,c){for(var d={},e=0;e<a.length;e+=1){var f=a[e],g=b[f.name];void 0===g||pa(g,f.value)||("SID"===f.type&&(g=Ha(g,c)),d[f.op]={name:f.name,type:f.type,value:g})}return d}function La(a,b){var c=new Ke.Record("Top DICT",[{name:"dict",type:"DICT",value:{}}]);return c.dict=Ka(We,a,b),c}function Ma(a){var b=new Ke.Record("Top DICT INDEX",[{name:"topDicts",type:"INDEX",value:[]}]);return b.topDicts=[{name:"topDict_0",type:"TABLE",value:a}],b}function Na(a){var b=new Ke.Record("String INDEX",[{name:"strings",type:"INDEX",value:[]}]);b.strings=[];for(var c=0;c<a.length;c+=1)b.strings.push({name:"string_"+c,type:"STRING",value:a[c]});return b}function Oa(){return new Ke.Record("Global Subr INDEX",[{name:"subrs",type:"INDEX",value:[]}])}function Pa(a,b){for(var c=new Ke.Record("Charsets",[{name:"format",type:"Card8",value:0}]),d=0;d<a.length;d+=1){var e=a[d],f=Ha(e,b);c.fields.push({name:"glyph_"+d,type:"SID",value:f})}return c}function Qa(a){var b=[],c=a.path;b.push({name:"width",type:"NUMBER",value:a.advanceWidth});for(var d=0,e=0,f=0;f<c.commands.length;f+=1){var g=void 0,h=void 0,i=c.commands[f];if("Q"===i.type){var j=1/3,k=2/3;i={type:"C",x:i.x,y:i.y,x1:j*d+k*i.x1,y1:j*e+k*i.y1,x2:j*i.x+k*i.x1,y2:j*i.y+k*i.y1}}if("M"===i.type)g=Math.round(i.x-d),h=Math.round(i.y-e),b.push({name:"dx",type:"NUMBER",value:g}),b.push({name:"dy",type:"NUMBER",value:h}),b.push({name:"rmoveto",type:"OP",value:21}),d=Math.round(i.x),e=Math.round(i.y);else if("L"===i.type)g=Math.round(i.x-d),h=Math.round(i.y-e),b.push({name:"dx",type:"NUMBER",value:g}),b.push({name:"dy",type:"NUMBER",value:h}),b.push({name:"rlineto",type:"OP",value:5}),d=Math.round(i.x),e=Math.round(i.y);else if("C"===i.type){var l=Math.round(i.x1-d),m=Math.round(i.y1-e),n=Math.round(i.x2-i.x1),o=Math.round(i.y2-i.y1);g=Math.round(i.x-i.x2),h=Math.round(i.y-i.y2),b.push({name:"dx1",type:"NUMBER",value:l}),b.push({name:"dy1",type:"NUMBER",value:m}),b.push({name:"dx2",type:"NUMBER",value:n}),b.push({name:"dy2",type:"NUMBER",value:o}),b.push({name:"dx",type:"NUMBER",value:g}),b.push({name:"dy",type:"NUMBER",value:h}),b.push({name:"rrcurveto",type:"OP",value:8}),d=Math.round(i.x),e=Math.round(i.y)}}return b.push({name:"endchar",type:"OP",value:14}),b}function Ra(a){for(var b=new Ke.Record("CharStrings INDEX",[{name:"charStrings",type:"INDEX",value:[]}]),c=0;c<a.length;c+=1){var d=a.get(c),e=Qa(d);b.charStrings.push({name:d.name,type:"CHARSTRING",value:e})}return b}function Sa(a,b){var c=new Ke.Record("Private DICT",[{name:"dict",type:"DICT",value:{}}]);return c.dict=Ka(Xe,a,b),c}function Ta(a,b){for(var c,d=new Ke.Table("CFF ",[{name:"header",type:"RECORD"},{name:"nameIndex",type:"RECORD"},{name:"topDictIndex",type:"RECORD"},{name:"stringIndex",type:"RECORD"},{name:"globalSubrIndex",type:"RECORD"},{name:"charsets",type:"RECORD"},{name:"charStringsIndex",type:"RECORD"},{name:"privateDict",type:"RECORD"}]),e=1/b.unitsPerEm,f={version:b.version,fullName:b.fullName,familyName:b.familyName,weight:b.weightName,fontBBox:b.fontBBox||[0,0,0,0],fontMatrix:[e,0,0,e,0,0],charset:999,encoding:0,charStrings:999,private:[0,999]},g={},h=[],i=1;i<a.length;i+=1)c=a.get(i),h.push(c.name);var j=[];d.header=Ia(),d.nameIndex=Ja([b.postScriptName]);var k=La(f,j);d.topDictIndex=Ma(k),d.globalSubrIndex=Oa(),d.charsets=Pa(h,j),d.charStringsIndex=Ra(a),d.privateDict=Sa(g,j),d.stringIndex=Na(j);var l=d.header.sizeOf()+d.nameIndex.sizeOf()+d.topDictIndex.sizeOf()+d.stringIndex.sizeOf()+d.globalSubrIndex.sizeOf();return f.charset=l,f.encoding=0,f.charStrings=f.charset+d.charsets.sizeOf(),f.private[1]=f.charStrings+d.charStringsIndex.sizeOf(),k=La(f,j),d.topDictIndex=Ma(k),d}function Ua(a,b){var c={},d=new Ne.Parser(a,b);return c.version=d.parseVersion(),c.fontRevision=Math.round(1e3*d.parseFixed())/1e3,c.checkSumAdjustment=d.parseULong(),c.magicNumber=d.parseULong(),ze.argument(1594834165===c.magicNumber,"Font header has wrong magic number."),c.flags=d.parseUShort(),c.unitsPerEm=d.parseUShort(),c.created=d.parseLongDateTime(),c.modified=d.parseLongDateTime(),c.xMin=d.parseShort(),c.yMin=d.parseShort(),c.xMax=d.parseShort(),c.yMax=d.parseShort(),c.macStyle=d.parseUShort(),c.lowestRecPPEM=d.parseUShort(),c.fontDirectionHint=d.parseShort(),c.indexToLocFormat=d.parseShort(),c.glyphDataFormat=d.parseShort(),c}function Va(a){var b=Math.round((new Date).getTime()/1e3)+2082844800,c=b;return a.createdTimestamp&&(c=a.createdTimestamp+2082844800),new Ke.Table("head",[{name:"version",type:"FIXED",value:65536},{name:"fontRevision",type:"FIXED",value:65536},{name:"checkSumAdjustment",type:"ULONG",value:0},{name:"magicNumber",type:"ULONG",value:1594834165},{name:"flags",type:"USHORT",value:0},{name:"unitsPerEm",type:"USHORT",value:1e3},{name:"created",type:"LONGDATETIME",value:c},{name:"modified",type:"LONGDATETIME",value:b},{name:"xMin",type:"SHORT",value:0},{name:"yMin",type:"SHORT",value:0},{name:"xMax",type:"SHORT",value:0},{name:"yMax",type:"SHORT",value:0},{name:"macStyle",type:"USHORT",value:0},{name:"lowestRecPPEM",type:"USHORT",value:0},{name:"fontDirectionHint",type:"SHORT",value:2},{name:"indexToLocFormat",type:"SHORT",value:0},{name:"glyphDataFormat",type:"SHORT",value:0}],a)}function Wa(a,b){var c={},d=new Ne.Parser(a,b);return c.version=d.parseVersion(),c.ascender=d.parseShort(),c.descender=d.parseShort(),c.lineGap=d.parseShort(),c.advanceWidthMax=d.parseUShort(),c.minLeftSideBearing=d.parseShort(),c.minRightSideBearing=d.parseShort(),c.xMaxExtent=d.parseShort(),c.caretSlopeRise=d.parseShort(),c.caretSlopeRun=d.parseShort(),c.caretOffset=d.parseShort(),d.relativeOffset+=8,c.metricDataFormat=d.parseShort(),c.numberOfHMetrics=d.parseUShort(),c}function Xa(a){return new Ke.Table("hhea",[{name:"version",type:"FIXED",value:65536},{name:"ascender",type:"FWORD",value:0},{name:"descender",type:"FWORD",value:0},{name:"lineGap",type:"FWORD",value:0},{name:"advanceWidthMax",type:"UFWORD",value:0},{name:"minLeftSideBearing",type:"FWORD",value:0},{name:"minRightSideBearing",type:"FWORD",value:0},{name:"xMaxExtent",type:"FWORD",value:0},{name:"caretSlopeRise",type:"SHORT",value:1},{name:"caretSlopeRun",type:"SHORT",value:0},{name:"caretOffset",type:"SHORT",value:0},{name:"reserved1",type:"SHORT",value:0},{name:"reserved2",type:"SHORT",value:0},{name:"reserved3",type:"SHORT",value:0},{name:"reserved4",type:"SHORT",value:0},{name:"metricDataFormat",type:"SHORT",value:0},{name:"numberOfHMetrics",type:"USHORT",value:0}],a)}function Ya(a,b,c,d,e){for(var f,g,h=new Ne.Parser(a,b),i=0;i<d;i+=1){i<c&&(f=h.parseUShort(),g=h.parseShort());var j=e.get(i);j.advanceWidth=f,
j.leftSideBearing=g}}function Za(a){for(var b=new Ke.Table("hmtx",[]),c=0;c<a.length;c+=1){var d=a.get(c),e=d.advanceWidth||0,f=d.leftSideBearing||0;b.fields.push({name:"advanceWidth_"+c,type:"USHORT",value:e}),b.fields.push({name:"leftSideBearing_"+c,type:"SHORT",value:f})}return b}function $a(a){for(var b=new Ke.Table("ltag",[{name:"version",type:"ULONG",value:1},{name:"flags",type:"ULONG",value:0},{name:"numTags",type:"ULONG",value:a.length}]),c="",d=12+4*a.length,e=0;e<a.length;++e){var f=c.indexOf(a[e]);f<0&&(f=c.length,c+=a[e]),b.fields.push({name:"offset "+e,type:"USHORT",value:d+f}),b.fields.push({name:"length "+e,type:"USHORT",value:a[e].length})}return b.fields.push({name:"stringPool",type:"CHARARRAY",value:c}),b}function _a(a,b){var c=new Ne.Parser(a,b),d=c.parseULong();ze.argument(1===d,"Unsupported ltag table version."),c.skip("uLong",1);for(var e=c.parseULong(),f=[],g=0;g<e;g++){for(var h="",i=b+c.parseUShort(),j=c.parseUShort(),k=i;k<i+j;++k)h+=String.fromCharCode(a.getInt8(k));f.push(h)}return f}function ab(a,b){var c={},d=new Ne.Parser(a,b);return c.version=d.parseVersion(),c.numGlyphs=d.parseUShort(),1===c.version&&(c.maxPoints=d.parseUShort(),c.maxContours=d.parseUShort(),c.maxCompositePoints=d.parseUShort(),c.maxCompositeContours=d.parseUShort(),c.maxZones=d.parseUShort(),c.maxTwilightPoints=d.parseUShort(),c.maxStorage=d.parseUShort(),c.maxFunctionDefs=d.parseUShort(),c.maxInstructionDefs=d.parseUShort(),c.maxStackElements=d.parseUShort(),c.maxSizeOfInstructions=d.parseUShort(),c.maxComponentElements=d.parseUShort(),c.maxComponentDepth=d.parseUShort()),c}function bb(a){return new Ke.Table("maxp",[{name:"version",type:"FIXED",value:20480},{name:"numGlyphs",type:"USHORT",value:a}])}function cb(a,b,c){switch(a){case 0:if(65535===b)return"und";if(c)return c[b];break;case 1:return df[b];case 3:return ff[b]}}function db(a,b,c){switch(a){case 0:return gf;case 1:return jf[c]||hf[b];case 3:if(1===b||10===b)return gf}}function eb(a,b,c){for(var d={},e=new Ne.Parser(a,b),f=e.parseUShort(),g=e.parseUShort(),h=e.offset+e.parseUShort(),i=0;i<g;i++){var j=e.parseUShort(),k=e.parseUShort(),l=e.parseUShort(),m=e.parseUShort(),n=cf[m]||m,o=e.parseUShort(),p=e.parseUShort(),q=cb(j,l,c),r=db(j,k,l);if(void 0!==r&&void 0!==q){var s=void 0;if(s=r===gf?Ce.UTF16(a,h+p,o):Ce.MACSTRING(a,h+p,o,r)){var t=d[n];void 0===t&&(t=d[n]={}),t[q]=s}}}return 1===f&&e.parseUShort(),d}function fb(a){var b={};for(var c in a)b[a[c]]=parseInt(c);return b}function gb(a,b,c,d,e,f){return new Ke.Record("NameRecord",[{name:"platformID",type:"USHORT",value:a},{name:"encodingID",type:"USHORT",value:b},{name:"languageID",type:"USHORT",value:c},{name:"nameID",type:"USHORT",value:d},{name:"length",type:"USHORT",value:e},{name:"offset",type:"USHORT",value:f}])}function hb(a,b){var c=a.length,d=b.length-c+1;a:for(var e=0;e<d;e++)for(;e<d;e++){for(var f=0;f<c;f++)if(b[e+f]!==a[f])continue a;return e}return-1}function ib(a,b){var c=hb(a,b);if(c<0){c=b.length;for(var d=0,e=a.length;d<e;++d)b.push(a[d])}return c}function jb(a,b){var c,d=[],e={},f=fb(cf);for(var g in a){var h=f[g];if(void 0===h&&(h=g),c=parseInt(h),isNaN(c))throw new Error('Name table entry "'+g+'" does not exist, see nameTableNames for complete list.');e[c]=a[g],d.push(c)}for(var i=fb(df),j=fb(ff),k=[],l=[],m=0;m<d.length;m++){c=d[m];var n=e[c];for(var o in n){var p=n[o],q=1,r=i[o],s=ef[r],t=db(q,s,r),u=De.MACSTRING(p,t);void 0===u&&(q=0,r=b.indexOf(o),r<0&&(r=b.length,b.push(o)),s=4,u=De.UTF16(p));var v=ib(u,l);k.push(gb(q,s,r,c,u.length,v));var w=j[o];if(void 0!==w){var x=De.UTF16(p),y=ib(x,l);k.push(gb(3,1,w,c,x.length,y))}}}k.sort(function(a,b){return a.platformID-b.platformID||a.encodingID-b.encodingID||a.languageID-b.languageID||a.nameID-b.nameID});for(var z=new Ke.Table("name",[{name:"format",type:"USHORT",value:0},{name:"count",type:"USHORT",value:k.length},{name:"stringOffset",type:"USHORT",value:6+12*k.length}]),A=0;A<k.length;A++)z.fields.push({name:"record_"+A,type:"RECORD",value:k[A]});return z.fields.push({name:"strings",type:"LITERAL",value:l}),z}function kb(a){for(var b=0;b<lf.length;b+=1){var c=lf[b];if(a>=c.begin&&a<c.end)return b}return-1}function lb(a,b){var c={},d=new Ne.Parser(a,b);c.version=d.parseUShort(),c.xAvgCharWidth=d.parseShort(),c.usWeightClass=d.parseUShort(),c.usWidthClass=d.parseUShort(),c.fsType=d.parseUShort(),c.ySubscriptXSize=d.parseShort(),c.ySubscriptYSize=d.parseShort(),c.ySubscriptXOffset=d.parseShort(),c.ySubscriptYOffset=d.parseShort(),c.ySuperscriptXSize=d.parseShort(),c.ySuperscriptYSize=d.parseShort(),c.ySuperscriptXOffset=d.parseShort(),c.ySuperscriptYOffset=d.parseShort(),c.yStrikeoutSize=d.parseShort(),c.yStrikeoutPosition=d.parseShort(),c.sFamilyClass=d.parseShort(),c.panose=[];for(var e=0;e<10;e++)c.panose[e]=d.parseByte();return c.ulUnicodeRange1=d.parseULong(),c.ulUnicodeRange2=d.parseULong(),c.ulUnicodeRange3=d.parseULong(),c.ulUnicodeRange4=d.parseULong(),c.achVendID=String.fromCharCode(d.parseByte(),d.parseByte(),d.parseByte(),d.parseByte()),c.fsSelection=d.parseUShort(),c.usFirstCharIndex=d.parseUShort(),c.usLastCharIndex=d.parseUShort(),c.sTypoAscender=d.parseShort(),c.sTypoDescender=d.parseShort(),c.sTypoLineGap=d.parseShort(),c.usWinAscent=d.parseUShort(),c.usWinDescent=d.parseUShort(),c.version>=1&&(c.ulCodePageRange1=d.parseULong(),c.ulCodePageRange2=d.parseULong()),c.version>=2&&(c.sxHeight=d.parseShort(),c.sCapHeight=d.parseShort(),c.usDefaultChar=d.parseUShort(),c.usBreakChar=d.parseUShort(),c.usMaxContent=d.parseUShort()),c}function mb(a){return new Ke.Table("OS/2",[{name:"version",type:"USHORT",value:3},{name:"xAvgCharWidth",type:"SHORT",value:0},{name:"usWeightClass",type:"USHORT",value:0},{name:"usWidthClass",type:"USHORT",value:0},{name:"fsType",type:"USHORT",value:0},{name:"ySubscriptXSize",type:"SHORT",value:650},{name:"ySubscriptYSize",type:"SHORT",value:699},{name:"ySubscriptXOffset",type:"SHORT",value:0},{name:"ySubscriptYOffset",type:"SHORT",value:140},{name:"ySuperscriptXSize",type:"SHORT",value:650},{name:"ySuperscriptYSize",type:"SHORT",value:699},{name:"ySuperscriptXOffset",type:"SHORT",value:0},{name:"ySuperscriptYOffset",type:"SHORT",value:479},{name:"yStrikeoutSize",type:"SHORT",value:49},{name:"yStrikeoutPosition",type:"SHORT",value:258},{name:"sFamilyClass",type:"SHORT",value:0},{name:"bFamilyType",type:"BYTE",value:0},{name:"bSerifStyle",type:"BYTE",value:0},{name:"bWeight",type:"BYTE",value:0},{name:"bProportion",type:"BYTE",value:0},{name:"bContrast",type:"BYTE",value:0},{name:"bStrokeVariation",type:"BYTE",value:0},{name:"bArmStyle",type:"BYTE",value:0},{name:"bLetterform",type:"BYTE",value:0},{name:"bMidline",type:"BYTE",value:0},{name:"bXHeight",type:"BYTE",value:0},{name:"ulUnicodeRange1",type:"ULONG",value:0},{name:"ulUnicodeRange2",type:"ULONG",value:0},{name:"ulUnicodeRange3",type:"ULONG",value:0},{name:"ulUnicodeRange4",type:"ULONG",value:0},{name:"achVendID",type:"CHARARRAY",value:"XXXX"},{name:"fsSelection",type:"USHORT",value:0},{name:"usFirstCharIndex",type:"USHORT",value:0},{name:"usLastCharIndex",type:"USHORT",value:0},{name:"sTypoAscender",type:"SHORT",value:0},{name:"sTypoDescender",type:"SHORT",value:0},{name:"sTypoLineGap",type:"SHORT",value:0},{name:"usWinAscent",type:"USHORT",value:0},{name:"usWinDescent",type:"USHORT",value:0},{name:"ulCodePageRange1",type:"ULONG",value:0},{name:"ulCodePageRange2",type:"ULONG",value:0},{name:"sxHeight",type:"SHORT",value:0},{name:"sCapHeight",type:"SHORT",value:0},{name:"usDefaultChar",type:"USHORT",value:0},{name:"usBreakChar",type:"USHORT",value:0},{name:"usMaxContext",type:"USHORT",value:0}],a)}function nb(a,b){var c={},d=new Ne.Parser(a,b);switch(c.version=d.parseVersion(),c.italicAngle=d.parseFixed(),c.underlinePosition=d.parseShort(),c.underlineThickness=d.parseShort(),c.isFixedPitch=d.parseULong(),c.minMemType42=d.parseULong(),c.maxMemType42=d.parseULong(),c.minMemType1=d.parseULong(),c.maxMemType1=d.parseULong(),c.version){case 1:c.names=Se.slice();break;case 2:c.numberOfGlyphs=d.parseUShort(),c.glyphNameIndex=new Array(c.numberOfGlyphs);for(var e=0;e<c.numberOfGlyphs;e++)c.glyphNameIndex[e]=d.parseUShort();c.names=[];for(var f=0;f<c.numberOfGlyphs;f++)if(c.glyphNameIndex[f]>=Se.length){var g=d.parseChar();c.names.push(d.parseString(g))}break;case 2.5:c.numberOfGlyphs=d.parseUShort(),c.offset=new Array(c.numberOfGlyphs);for(var h=0;h<c.numberOfGlyphs;h++)c.offset[h]=d.parseChar()}return c}function ob(){return new Ke.Table("post",[{name:"version",type:"FIXED",value:196608},{name:"italicAngle",type:"FIXED",value:0},{name:"underlinePosition",type:"FWORD",value:0},{name:"underlineThickness",type:"FWORD",value:0},{name:"isFixedPitch",type:"ULONG",value:0},{name:"minMemType42",type:"ULONG",value:0},{name:"maxMemType42",type:"ULONG",value:0},{name:"minMemType1",type:"ULONG",value:0},{name:"maxMemType1",type:"ULONG",value:0}])}function pb(a,b){b=b||0;var c=new Q(a,b),d=c.parseVersion();return ze.argument(1===d,"Unsupported GSUB table version."),{version:d,scripts:c.parseScriptList(),features:c.parseFeatureList(),lookups:c.parseLookupList(of)}}function qb(a){return new Ke.Table("GSUB",[{name:"version",type:"ULONG",value:65536},{name:"scripts",type:"TABLE",value:new Ke.ScriptList(a.scripts)},{name:"features",type:"TABLE",value:new Ke.FeatureList(a.features)},{name:"lookups",type:"TABLE",value:new Ke.LookupList(a.lookups,qf)}])}function rb(a,b){var c=new Ne.Parser(a,b),d=c.parseULong();ze.argument(1===d,"Unsupported META table version."),c.parseULong(),c.parseULong();for(var e=c.parseULong(),f={},g=0;g<e;g++){var h=c.parseTag(),i=c.parseULong(),j=c.parseULong(),k=Ce.UTF8(a,b+i,j);f[h]=k}return f}function sb(a){var b=Object.keys(a).length,c="",d=16+12*b,e=new Ke.Table("meta",[{name:"version",type:"ULONG",value:1},{name:"flags",type:"ULONG",value:0},{name:"offset",type:"ULONG",value:d},{name:"numTags",type:"ULONG",value:b}]);for(var f in a){var g=c.length;c+=a[f],e.fields.push({name:"tag "+f,type:"TAG",value:f}),e.fields.push({name:"offset "+f,type:"ULONG",value:d+g}),e.fields.push({name:"length "+f,type:"ULONG",value:a[f].length})}return e.fields.push({name:"stringPool",type:"CHARARRAY",value:c}),e}function tb(a){return Math.log(a)/Math.log(2)|0}function ub(a){for(;a.length%4!=0;)a.push(0);for(var b=0,c=0;c<a.length;c+=4)b+=(a[c]<<24)+(a[c+1]<<16)+(a[c+2]<<8)+a[c+3];return b%=Math.pow(2,32)}function vb(a,b,c,d){return new Ke.Record("Table Record",[{name:"tag",type:"TAG",value:void 0!==a?a:""},{name:"checkSum",type:"ULONG",value:void 0!==b?b:0},{name:"offset",type:"ULONG",value:void 0!==c?c:0},{name:"length",type:"ULONG",value:void 0!==d?d:0}])}function wb(a){var b=new Ke.Table("sfnt",[{name:"version",type:"TAG",value:"OTTO"},{name:"numTables",type:"USHORT",value:0},{name:"searchRange",type:"USHORT",value:0},{name:"entrySelector",type:"USHORT",value:0},{name:"rangeShift",type:"USHORT",value:0}]);b.tables=a,b.numTables=a.length;var c=Math.pow(2,tb(b.numTables));b.searchRange=16*c,b.entrySelector=tb(c),b.rangeShift=16*b.numTables-b.searchRange;for(var d=[],e=[],f=b.sizeOf()+vb().sizeOf()*b.numTables;f%4!=0;)f+=1,e.push({name:"padding",type:"BYTE",value:0});for(var g=0;g<a.length;g+=1){var h=a[g];ze.argument(4===h.tableName.length,"Table name"+h.tableName+" is invalid.");var i=h.sizeOf(),j=vb(h.tableName,ub(h.encode()),f,i);for(d.push({name:j.tag+" Table 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c=b.stack.pop();a.DEBUG&&console.log(b.step,"S45ROUND[]",c),b.round=yf;var d;switch(192&c){case 0:d=Math.sqrt(2)/2;break;case 64:d=Math.sqrt(2);break;case 128:d=2*Math.sqrt(2);break;default:throw new Error("invalid S45ROUND value")}switch(b.srPeriod=d,48&c){case 0:b.srPhase=0;break;case 16:b.srPhase=.25*d;break;case 32:b.srPhase=.5*d;break;case 48:b.srPhase=.75*d;break;default:throw new Error("invalid S45ROUND value")}c&=15,b.srThreshold=0===c?0:(c/8-.5)*d}function Ad(b){a.DEBUG&&console.log(b.step,"ROFF[]"),b.round=Lb}function Bd(b){a.DEBUG&&console.log(b.step,"RUTG[]"),b.round=Pb}function Cd(b){a.DEBUG&&console.log(b.step,"RDTG[]"),b.round=Qb}function Dd(b){var c=b.stack.pop();a.DEBUG&&console.log(b.step,"SCANCTRL[]",c)}function Ed(b,c){var d=c.stack,e=d.pop(),f=d.pop(),g=c.z2[e],h=c.z1[f];a.DEBUG&&console.log("SDPVTL["+b+"]",e,f);var i,j;b?(i=g.y-h.y,j=h.x-g.x):(i=h.x-g.x,j=h.y-g.y),c.dpv=Sb(i,j)}function Fd(b){var 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o=m[n],p=j[o];if(!p){p={},d.relativeOffset=o;for(var q=d.parseUShort();q--;){var r=d.parseUShort();h&&(c=d.parseShort()),i&&d.parseShort(),p[r]=c}}l[g[n]]=p}return function(a,b){var c=l[a];if(c)return c[b]}}if(2===e){for(var s=d.parseUShort(),t=d.parseUShort(),u=d.parseUShort(),v=d.parseUShort(),w=Yd(a,b+s),x=Yd(a,b+t),y=[],z=0;z<u;z++)for(var A=y[z]=[],B=0;B<v;B++)h&&(c=d.parseShort()),i&&d.parseShort(),A[B]=c;for(var C={},D=0;D<g.length;D++)C[g[D]]=1;return function(a,b){if(C[a]){var c=w(a),d=x(b),e=y[c];return e?e[d]:void 0}}}}}function $d(a,b){var c=new Ne.Parser(a,b),d=c.parseUShort(),e=c.parseUShort(),f=16&e,g=c.parseUShort(),h=c.parseOffset16List(g),i={lookupType:d,lookupFlag:e,markFilteringSet:f?c.parseUShort():-1};if(2===d){for(var j=[],k=0;k<g;k++){var l=Zd(a,b+h[k]);l&&j.push(l)}i.getKerningValue=function(a,b){for(var c=j.length;c--;){var d=j[c](a,b);if(void 0!==d)return d}return 0}}return i}function _d(a,b,c){var d=new Ne.Parser(a,b),e=d.parseFixed();ze.argument(1===e,"Unsupported GPOS table version."),Wd(a,b+d.parseUShort()),Wd(a,b+d.parseUShort());var f=d.parseUShort();d.relativeOffset=f;for(var g=d.parseUShort(),h=d.parseOffset16List(g),i=b+f,j=0;j<g;j++){var k=$d(a,i+h[j]);2!==k.lookupType||c.getGposKerningValue||(c.getGposKerningValue=k.getKerningValue)}}function ae(a){var b={};a.skip("uShort");var c=a.parseUShort();ze.argument(0===c,"Unsupported kern sub-table version."),a.skip("uShort",2);var d=a.parseUShort();a.skip("uShort",3);for(var e=0;e<d;e+=1){var f=a.parseUShort(),g=a.parseUShort(),h=a.parseShort();b[f+","+g]=h}return b}function be(a){var b={};a.skip("uShort"),a.parseULong()>1&&console.warn("Only the first kern subtable is supported."),a.skip("uLong");var c=a.parseUShort(),d=255&c;if(a.skip("uShort"),0===d){var e=a.parseUShort();a.skip("uShort",3);for(var f=0;f<e;f+=1){var g=a.parseUShort(),h=a.parseUShort(),i=a.parseShort();b[g+","+h]=i}}return b}function ce(a,b){var c=new Ne.Parser(a,b),d=c.parseUShort();if(0===d)return ae(c);if(1===d)return be(c);throw new Error("Unsupported kern table version ("+d+").")}function de(a,b,c,d){for(var e=new Ne.Parser(a,b),f=d?e.parseUShort:e.parseULong,g=[],h=0;h<c+1;h+=1){var i=f.call(e);d&&(i*=2),g.push(i)}return g}function ee(a,c){b("fs").readFile(a,function(a,b){if(a)return c(a.message);c(null,Hb(b))})}function fe(a,b){var c=new XMLHttpRequest;c.open("get",a,!0),c.responseType="arraybuffer",c.onload=function(){return 200!==c.status?b("Font could not be loaded: "+c.statusText):b(null,c.response)},c.onerror=function(){b("Font could not be loaded")},c.send()}function ge(a,b){for(var c=[],d=12,e=0;e<b;e+=1){var f=Ne.getTag(a,d),g=Ne.getULong(a,d+4),h=Ne.getULong(a,d+8),i=Ne.getULong(a,d+12);c.push({tag:f,checksum:g,offset:h,length:i,compression:!1}),d+=16}return c}function he(a,b){for(var c=[],d=44,e=0;e<b;e+=1){var f=Ne.getTag(a,d),g=Ne.getULong(a,d+4),h=Ne.getULong(a,d+8),i=Ne.getULong(a,d+12),j=void 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1"),{substFormat:a,coverage:this.parsePointer(Q.coverage),ligatureSets:this.parseListOfLists(function(){return{ligGlyph:this.parseUShort(),components:this.parseUShortList(this.parseUShort()-1)}})}};var pf={sequenceIndex:Q.uShort,lookupListIndex:Q.uShort};of[5]=function(){var a=this.offset+this.relativeOffset,b=this.parseUShort();if(1===b)return{substFormat:b,coverage:this.parsePointer(Q.coverage),ruleSets:this.parseListOfLists(function(){var a=this.parseUShort(),b=this.parseUShort();return{input:this.parseUShortList(a-1),lookupRecords:this.parseRecordList(b,pf)}})};if(2===b)return{substFormat:b,coverage:this.parsePointer(Q.coverage),classDef:this.parsePointer(Q.classDef),classSets:this.parseListOfLists(function(){var a=this.parseUShort(),b=this.parseUShort();return{classes:this.parseUShortList(a-1),lookupRecords:this.parseRecordList(b,pf)}})};if(3===b){var c=this.parseUShort(),d=this.parseUShort();return{substFormat:b,coverages:this.parseList(c,Q.pointer(Q.coverage)),lookupRecords:this.parseRecordList(d,pf)}}ze.assert(!1,"0x"+a.toString(16)+": lookup type 5 format must be 1, 2 or 3.")},of[6]=function(){var a=this.offset+this.relativeOffset,b=this.parseUShort();return 1===b?{substFormat:1,coverage:this.parsePointer(Q.coverage),chainRuleSets:this.parseListOfLists(function(){return{backtrack:this.parseUShortList(),input:this.parseUShortList(this.parseShort()-1),lookahead:this.parseUShortList(),lookupRecords:this.parseRecordList(pf)}})}:2===b?{substFormat:2,coverage:this.parsePointer(Q.coverage),backtrackClassDef:this.parsePointer(Q.classDef),inputClassDef:this.parsePointer(Q.classDef),lookaheadClassDef:this.parsePointer(Q.classDef),chainClassSet:this.parseListOfLists(function(){return{backtrack:this.parseUShortList(),input:this.parseUShortList(this.parseShort()-1),lookahead:this.parseUShortList(),lookupRecords:this.parseRecordList(pf)}})}:3===b?{substFormat:3,backtrackCoverage:this.parseList(Q.pointer(Q.coverage)),inputCoverage:this.parseList(Q.pointer(Q.coverage)),lookaheadCoverage:this.parseList(Q.pointer(Q.coverage)),lookupRecords:this.parseRecordList(pf)}:void ze.assert(!1,"0x"+a.toString(16)+": lookup type 6 format must be 1, 2 or 3.")},of[7]=function(){var a=this.parseUShort();ze.argument(1===a,"GSUB Extension Substitution subtable identifier-format must be 1");var b=this.parseUShort(),c=new Q(this.data,this.offset+this.parseULong());return{substFormat:1,lookupType:b,extension:of[b].call(c)}},of[8]=function(){var a=this.parseUShort();return ze.argument(1===a,"GSUB Reverse Chaining Contextual Single Substitution Subtable identifier-format must be 1"),{substFormat:a,coverage:this.parsePointer(Q.coverage),backtrackCoverage:this.parseList(Q.pointer(Q.coverage)),lookaheadCoverage:this.parseList(Q.pointer(Q.coverage)),substitutes:this.parseUShortList()}};var qf=new Array(9);qf[1]=function(a){return 1===a.substFormat?new Ke.Table("substitutionTable",[{name:"substFormat",type:"USHORT",value:1},{name:"coverage",type:"TABLE",value:new Ke.Coverage(a.coverage)},{name:"deltaGlyphID",type:"USHORT",value:a.deltaGlyphId}]):new Ke.Table("substitutionTable",[{name:"substFormat",type:"USHORT",value:2},{name:"coverage",type:"TABLE",value:new Ke.Coverage(a.coverage)}].concat(Ke.ushortList("substitute",a.substitute)))},qf[3]=function(a){return ze.assert(1===a.substFormat,"Lookup type 3 substFormat must be 1."),new Ke.Table("substitutionTable",[{name:"substFormat",type:"USHORT",value:1},{name:"coverage",type:"TABLE",value:new Ke.Coverage(a.coverage)}].concat(Ke.tableList("altSet",a.alternateSets,function(a){return new Ke.Table("alternateSetTable",Ke.ushortList("alternate",a))})))},qf[4]=function(a){return ze.assert(1===a.substFormat,"Lookup type 4 substFormat must be 1."),new Ke.Table("substitutionTable",[{name:"substFormat",type:"USHORT",value:1},{name:"coverage",type:"TABLE",value:new Ke.Coverage(a.coverage)}].concat(Ke.tableList("ligSet",a.ligatureSets,function(a){return new Ke.Table("ligatureSetTable",Ke.tableList("ligature",a,function(a){return new Ke.Table("ligatureTable",[{name:"ligGlyph",type:"USHORT",value:a.ligGlyph}].concat(Ke.ushortList("component",a.components,a.components.length+1)))}))})))};var rf={parse:pb,make:qb},sf={parse:rb,make:sb},tf={make:wb,fontToTable:zb,computeCheckSum:ub};Cb.prototype={searchTag:Ab,binSearch:Bb,getTable:function(a){var b=this.font.tables[this.tableName];return!b&&a&&(b=this.font.tables[this.tableName]=this.createDefaultTable()),b},getScriptNames:function(){var a=this.getTable();return a?a.scripts.map(function(a){return a.tag}):[]},getDefaultScriptName:function(){var a=this.getTable();if(a){for(var b=!1,c=0;c<a.scripts.length;c++){var d=a.scripts[c].tag;if("DFLT"===d)return d;"latn"===d&&(b=!0)}return b?"latn":void 0}},getScriptTable:function(a,b){var c=this.getTable(b);if(c){a=a||"DFLT";var d=c.scripts,e=Ab(c.scripts,a);if(e>=0)return d[e].script;if(b){var f={tag:a,script:{defaultLangSys:{reserved:0,reqFeatureIndex:65535,featureIndexes:[]},langSysRecords:[]}};return d.splice(-1-e,0,f),f.script}}},getLangSysTable:function(a,b,c){var d=this.getScriptTable(a,c);if(d){if(!b||"dflt"===b||"DFLT"===b)return d.defaultLangSys;var e=Ab(d.langSysRecords,b);if(e>=0)return d.langSysRecords[e].langSys;if(c){var f={tag:b,langSys:{reserved:0,reqFeatureIndex:65535,featureIndexes:[]}};return d.langSysRecords.splice(-1-e,0,f),f.langSys}}},getFeatureTable:function(a,b,c,d){var e=this.getLangSysTable(a,b,d);if(e){for(var f,g=e.featureIndexes,h=this.font.tables[this.tableName].features,i=0;i<g.length;i++)if(f=h[g[i]],f.tag===c)return f.feature;if(d){var j=h.length;return ze.assert(0===j||c>=h[j-1].tag,"Features must be added in alphabetical order."),f={tag:c,feature:{params:0,lookupListIndexes:[]}},h.push(f),g.push(j),f.feature}}},getLookupTables:function(a,b,c,d,e){var f=this.getFeatureTable(a,b,c,e),g=[];if(f){for(var h,i=f.lookupListIndexes,j=this.font.tables[this.tableName].lookups,k=0;k<i.length;k++)h=j[i[k]],h.lookupType===d&&g.push(h);if(0===g.length&&e){h={lookupType:d,lookupFlag:0,subtables:[],markFilteringSet:void 0};var l=j.length;return j.push(h),i.push(l),[h]}}return g},expandCoverage:function(a){if(1===a.format)return a.glyphs;for(var b=[],c=a.ranges,d=0;d<c.length;d++)for(var e=c[d],f=e.start,g=e.end,h=f;h<=g;h++)b.push(h);return b}},Db.prototype=Cb.prototype,Db.prototype.createDefaultTable=function(){return{version:1,scripts:[{tag:"DFLT",script:{defaultLangSys:{reserved:0,reqFeatureIndex:65535,featureIndexes:[]},langSysRecords:[]}}],features:[],
lookups:[]}},Db.prototype.getSingle=function(a,b,c){for(var d=this,e=[],f=this.getLookupTables(b,c,a,1),g=0;g<f.length;g++)for(var h=f[g].subtables,i=0;i<h.length;i++){var j=h[i],k=d.expandCoverage(j.coverage),l=void 0;if(1===j.substFormat){var m=j.deltaGlyphId;for(l=0;l<k.length;l++){var n=k[l];e.push({sub:n,by:n+m})}}else{var o=j.substitute;for(l=0;l<k.length;l++)e.push({sub:k[l],by:o[l]})}}return e},Db.prototype.getAlternates=function(a,b,c){for(var d=this,e=[],f=this.getLookupTables(b,c,a,3),g=0;g<f.length;g++)for(var h=f[g].subtables,i=0;i<h.length;i++)for(var j=h[i],k=d.expandCoverage(j.coverage),l=j.alternateSets,m=0;m<k.length;m++)e.push({sub:k[m],by:l[m]});return e},Db.prototype.getLigatures=function(a,b,c){for(var d=this,e=[],f=this.getLookupTables(b,c,a,4),g=0;g<f.length;g++)for(var h=f[g].subtables,i=0;i<h.length;i++)for(var j=h[i],k=d.expandCoverage(j.coverage),l=j.ligatureSets,m=0;m<k.length;m++)for(var n=k[m],o=l[m],p=0;p<o.length;p++){var q=o[p];e.push({sub:[n].concat(q.components),by:q.ligGlyph})}return e},Db.prototype.addSingle=function(a,b,c,d){var e=this.getLookupTables(c,d,a,1,!0)[0],f=Fb(e,2,{substFormat:2,coverage:{format:1,glyphs:[]},substitute:[]});ze.assert(1===f.coverage.format,"Ligature: unable to modify coverage table format "+f.coverage.format);var g=b.sub,h=this.binSearch(f.coverage.glyphs,g);h<0&&(h=-1-h,f.coverage.glyphs.splice(h,0,g),f.substitute.splice(h,0,0)),f.substitute[h]=b.by},Db.prototype.addAlternate=function(a,b,c,d){var e=this.getLookupTables(c,d,a,3,!0)[0],f=Fb(e,1,{substFormat:1,coverage:{format:1,glyphs:[]},alternateSets:[]});ze.assert(1===f.coverage.format,"Ligature: unable to modify coverage table format "+f.coverage.format);var g=b.sub,h=this.binSearch(f.coverage.glyphs,g);h<0&&(h=-1-h,f.coverage.glyphs.splice(h,0,g),f.alternateSets.splice(h,0,0)),f.alternateSets[h]=b.by},Db.prototype.addLigature=function(a,b,c,d){var e=this.getLookupTables(c,d,a,4,!0)[0],f=e.subtables[0];f||(f={substFormat:1,coverage:{format:1,glyphs:[]},ligatureSets:[]},e.subtables[0]=f),ze.assert(1===f.coverage.format,"Ligature: unable to modify coverage table format "+f.coverage.format);var g=b.sub[0],h=b.sub.slice(1),i={ligGlyph:b.by,components:h},j=this.binSearch(f.coverage.glyphs,g);if(j>=0){for(var k=f.ligatureSets[j],l=0;l<k.length;l++)if(Eb(k[l].components,h))return;k.push(i)}else j=-1-j,f.coverage.glyphs.splice(j,0,g),f.ligatureSets.splice(j,0,[i])},Db.prototype.getFeature=function(a,b,c){if(/ss\d\d/.test(a))return this.getSingle(a,b,c);switch(a){case"aalt":case"salt":return this.getSingle(a,b,c).concat(this.getAlternates(a,b,c));case"dlig":case"liga":case"rlig":return this.getLigatures(a,b,c)}},Db.prototype.add=function(a,b,c,d){if(/ss\d\d/.test(a))return this.addSingle(a,b,c,d);switch(a){case"aalt":case"salt":return"number"==typeof b.by?this.addSingle(a,b,c,d):this.addAlternate(a,b,c,d);case"dlig":case"liga":case"rlig":return this.addLigature(a,b,c,d)}};var uf,vf,wf,xf,yf=function(a){var b=this.srPeriod,c=this.srPhase,d=this.srThreshold,e=1;return a<0&&(a=-a,e=-1),a+=d-c,a=Math.trunc(a/b)*b,a+=c,e>0&&a<0?c:e<0&&a>0?-c:a*e},zf={x:1,y:0,axis:"x",distance:function(a,b,c,d){return(c?a.xo:a.x)-(d?b.xo:b.x)},interpolate:function(a,b,c,d){var e,f,g,h,i,j,k;return d&&d!==this?(e=d.distance(a,b,!0,!0),f=d.distance(a,c,!0,!0),i=d.distance(b,b,!1,!0),j=d.distance(c,c,!1,!0),g=Math.abs(e),h=Math.abs(f),0===(k=g+h)?void zf.setRelative(a,a,(i+j)/2,d,!0):void zf.setRelative(a,a,(i*h+j*g)/k,d,!0)):(e=a.xo-b.xo,f=a.xo-c.xo,i=b.x-b.xo,j=c.x-c.xo,g=Math.abs(e),h=Math.abs(f),0===(k=g+h)?void(a.x=a.xo+(i+j)/2):void(a.x=a.xo+(i*h+j*g)/k))},normalSlope:Number.NEGATIVE_INFINITY,setRelative:function(a,b,c,d,e){if(!d||d===this)return void(a.x=(e?b.xo:b.x)+c);var f=e?b.xo:b.x,g=e?b.yo:b.y,h=f+c*d.x,i=g+c*d.y;a.x=h+(a.y-i)/d.normalSlope},slope:0,touch:function(a){a.xTouched=!0},touched:function(a){return a.xTouched},untouch:function(a){a.xTouched=!1}},Af={x:0,y:1,axis:"y",distance:function(a,b,c,d){return(c?a.yo:a.y)-(d?b.yo:b.y)},interpolate:function(a,b,c,d){var e,f,g,h,i,j,k;return d&&d!==this?(e=d.distance(a,b,!0,!0),f=d.distance(a,c,!0,!0),i=d.distance(b,b,!1,!0),j=d.distance(c,c,!1,!0),g=Math.abs(e),h=Math.abs(f),0===(k=g+h)?void Af.setRelative(a,a,(i+j)/2,d,!0):void Af.setRelative(a,a,(i*h+j*g)/k,d,!0)):(e=a.yo-b.yo,f=a.yo-c.yo,i=b.y-b.yo,j=c.y-c.yo,g=Math.abs(e),h=Math.abs(f),0===(k=g+h)?void(a.y=a.yo+(i+j)/2):void(a.y=a.yo+(i*h+j*g)/k))},normalSlope:0,setRelative:function(a,b,c,d,e){if(!d||d===this)return void(a.y=(e?b.yo:b.y)+c);var f=e?b.xo:b.x,g=e?b.yo:b.y,h=f+c*d.x,i=g+c*d.y;a.y=i+d.normalSlope*(a.x-h)},slope:Number.POSITIVE_INFINITY,touch:function(a){a.yTouched=!0},touched:function(a){return a.yTouched},untouch:function(a){a.yTouched=!1}};Object.freeze(zf),Object.freeze(Af),Rb.prototype.distance=function(a,b,c,d){return this.x*zf.distance(a,b,c,d)+this.y*Af.distance(a,b,c,d)},Rb.prototype.interpolate=function(a,b,c,d){var e,f,g,h,i,j,k;if(g=d.distance(a,b,!0,!0),h=d.distance(a,c,!0,!0),e=d.distance(b,b,!1,!0),f=d.distance(c,c,!1,!0),i=Math.abs(g),j=Math.abs(h),0===(k=i+j))return void this.setRelative(a,a,(e+f)/2,d,!0);this.setRelative(a,a,(e*j+f*i)/k,d,!0)},Rb.prototype.setRelative=function(a,b,c,d,e){d=d||this;var f=e?b.xo:b.x,g=e?b.yo:b.y,h=f+c*d.x,i=g+c*d.y,j=d.normalSlope,k=this.slope,l=a.x,m=a.y;a.x=(k*l-j*h+i-m)/(k-j),a.y=k*(a.x-l)+m},Rb.prototype.touch=function(a){a.xTouched=!0,a.yTouched=!0},Tb.prototype.nextTouched=function(a){for(var b=this.nextPointOnContour;!a.touched(b)&&b!==this;)b=b.nextPointOnContour;return b},Tb.prototype.prevTouched=function(a){for(var b=this.prevPointOnContour;!a.touched(b)&&b!==this;)b=b.prevPointOnContour;return b};var 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k=i[j];if(f.call(g,k,b,c,d,e),k.advanceWidth&&(b+=k.advanceWidth*h),e.kerning&&j<i.length-1){b+=g.getKerningValue(k,i[j+1])*h}e.letterSpacing?b+=e.letterSpacing*d:e.tracking&&(b+=e.tracking/1e3*d)}return b},Od.prototype.getPath=function(a,b,c,d,e){var f=new r;return this.forEachGlyph(a,b,c,d,e,function(a,b,c,d){var g=a.getPath(b,c,d,e,this);f.extend(g)}),f},Od.prototype.getPaths=function(a,b,c,d,e){var f=[];return this.forEachGlyph(a,b,c,d,e,function(a,b,c,d){var g=a.getPath(b,c,d,e,this);f.push(g)}),f},Od.prototype.getAdvanceWidth=function(a,b,c){return this.forEachGlyph(a,0,0,b,c,function(){})},Od.prototype.draw=function(a,b,c,d,e,f){this.getPath(b,c,d,e,f).draw(a)},Od.prototype.drawPoints=function(a,b,c,d,e,f){this.forEachGlyph(b,c,d,e,f,function(b,c,d,e){b.drawPoints(a,c,d,e)})},Od.prototype.drawMetrics=function(a,b,c,d,e,f){this.forEachGlyph(b,c,d,e,f,function(b,c,d,e){b.drawMetrics(a,c,d,e)})},Od.prototype.getEnglishName=function(a){var b=this.names[a];if(b)return 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d._validateParameters("brightness",arguments),this.color(a)._getBrightness()},d.prototype.color=function(){if(d._validateParameters("color",arguments),arguments[0]instanceof d.Color)return arguments[0];var a=arguments[0]instanceof Array?arguments[0]:arguments;return new d.Color(this,a)},d.prototype.green=function(a){return d._validateParameters("green",arguments),this.color(a)._getGreen()},d.prototype.hue=function(a){return d._validateParameters("hue",arguments),this.color(a)._getHue()},d.prototype.lerpColor=function(a,b,c){d._validateParameters("lerpColor",arguments);var f,g,h,i,j,k,l=this._colorMode,m=this._colorMaxes;if(l===e.RGB)j=a.levels.map(function(a){return a/255}),k=b.levels.map(function(a){return a/255});else if(l===e.HSB)a._getBrightness(),b._getBrightness(),j=a.hsba,k=b.hsba;else{if(l!==e.HSL)throw new Error(l+"cannot be used for interpolation.");a._getLightness(),b._getLightness(),j=a.hsla,k=b.hsla}return c=Math.max(Math.min(c,1),0),void 0===this.lerp&&(this.lerp=function(a,b,c){return c*(b-a)+a}),f=this.lerp(j[0],k[0],c),g=this.lerp(j[1],k[1],c),h=this.lerp(j[2],k[2],c),i=this.lerp(j[3],k[3],c),f*=m[l][0],g*=m[l][1],h*=m[l][2],i*=m[l][3],this.color(f,g,h,i)},d.prototype.lightness=function(a){return d._validateParameters("lightness",arguments),this.color(a)._getLightness()},d.prototype.red=function(a){return d._validateParameters("red",arguments),this.color(a)._getRed()},d.prototype.saturation=function(a){return d._validateParameters("saturation",arguments),this.color(a)._getSaturation()},b.exports=d},{"../core/constants":20,"../core/core":21,"../core/error_helpers":24,"./p5.Color":15}],15:[function(a,b,c){"use strict";var d=a("../core/core"),e=a("../core/constants"),f=a("./color_conversion");d.Color=function(a,b){if(this._storeModeAndMaxes(a._colorMode,a._colorMaxes),this.mode!==e.RGB&&this.mode!==e.HSL&&this.mode!==e.HSB)throw new Error(this.mode+" is an invalid colorMode.");return this._array=d.Color._parseInputs.apply(this,b),this._calculateLevels(),this},d.Color.prototype.toString=function(a){
this.hsba||(this.hsba=f._rgbaToHSBA(this._array)),this.hsla||(this.hsla=f._rgbaToHSLA(this._array));var b=this.levels,c=this._array,d=c[3];switch(a){case"#rrggbb":return"#".concat(b[0]<16?"0".concat(b[0].toString(16)):b[0].toString(16),b[1]<16?"0".concat(b[1].toString(16)):b[1].toString(16),b[2]<16?"0".concat(b[2].toString(16)):b[2].toString(16));case"#rrggbbaa":return"#".concat(b[0]<16?"0".concat(b[0].toString(16)):b[0].toString(16),b[1]<16?"0".concat(b[1].toString(16)):b[1].toString(16),b[2]<16?"0".concat(b[2].toString(16)):b[2].toString(16),b[3]<16?"0".concat(b[2].toString(16)):b[3].toString(16));case"#rgb":return"#".concat(Math.round(15*c[0]).toString(16),Math.round(15*c[1]).toString(16),Math.round(15*c[2]).toString(16));case"#rgba":return"#".concat(Math.round(15*c[0]).toString(16),Math.round(15*c[1]).toString(16),Math.round(15*c[2]).toString(16),Math.round(15*c[3]).toString(16));case"rgb":return"rgb(".concat(b[0],", ",b[1],", ",b[2],")");case"rgb%":return"rgb(".concat((100*c[0]).toPrecision(3),"%, ",(100*c[1]).toPrecision(3),"%, ",(100*c[2]).toPrecision(3),"%)");case"rgba%":return"rgba(".concat((100*c[0]).toPrecision(3),"%, ",(100*c[1]).toPrecision(3),"%, ",(100*c[2]).toPrecision(3),"%, ",(100*c[3]).toPrecision(3),"%)");case"hsb":case"hsv":return"hsb(".concat(this.hsba[0]*this.maxes[e.HSB][0],", ",this.hsba[1]*this.maxes[e.HSB][1],", ",this.hsba[2]*this.maxes[e.HSB][2],")");case"hsb%":case"hsv%":return"hsb(".concat((100*this.hsba[0]).toPrecision(3),"%, ",(100*this.hsba[1]).toPrecision(3),"%, ",(100*this.hsba[2]).toPrecision(3),"%)");case"hsba":case"hsva":return"hsba(".concat(this.hsba[0]*this.maxes[e.HSB][0],", ",this.hsba[1]*this.maxes[e.HSB][1],", ",this.hsba[2]*this.maxes[e.HSB][2],", ",d,")");case"hsba%":case"hsva%":return"hsba(".concat((100*this.hsba[0]).toPrecision(3),"%, ",(100*this.hsba[1]).toPrecision(3),"%, ",(100*this.hsba[2]).toPrecision(3),"%, ",(100*d).toPrecision(3),"%)");case"hsl":return"hsl(".concat(this.hsla[0]*this.maxes[e.HSL][0],", ",this.hsla[1]*this.maxes[e.HSL][1],", ",this.hsla[2]*this.maxes[e.HSL][2],")");case"hsl%":return"hsl(".concat((100*this.hsla[0]).toPrecision(3),"%, ",(100*this.hsla[1]).toPrecision(3),"%, ",(100*this.hsla[2]).toPrecision(3),"%)");case"hsla":return"hsla(".concat(this.hsla[0]*this.maxes[e.HSL][0],", ",this.hsla[1]*this.maxes[e.HSL][1],", ",this.hsla[2]*this.maxes[e.HSL][2],", ",d,")");case"hsla%":return"hsl(".concat((100*this.hsla[0]).toPrecision(3),"%, ",(100*this.hsla[1]).toPrecision(3),"%, ",(100*this.hsla[2]).toPrecision(3),"%, ",(100*d).toPrecision(3),"%)");case"rgba":default:return"rgba("+b[0]+","+b[1]+","+b[2]+","+d+")"}},d.Color.prototype.setRed=function(a){this._array[0]=a/this.maxes[e.RGB][0],this._calculateLevels()},d.Color.prototype.setGreen=function(a){this._array[1]=a/this.maxes[e.RGB][1],this._calculateLevels()},d.Color.prototype.setBlue=function(a){this._array[2]=a/this.maxes[e.RGB][2],this._calculateLevels()},d.Color.prototype.setAlpha=function(a){this._array[3]=a/this.maxes[this.mode][3],this._calculateLevels()},d.Color.prototype._calculateLevels=function(){this.levels=this._array.map(function(a){return Math.round(255*a)})},d.Color.prototype._getAlpha=function(){return this._array[3]*this.maxes[this.mode][3]},d.Color.prototype._storeModeAndMaxes=function(a,b){this.mode=a,this.maxes=b},d.Color.prototype._getMode=function(){return this.mode},d.Color.prototype._getMaxes=function(){return this.maxes},d.Color.prototype._getBlue=function(){return this._array[2]*this.maxes[e.RGB][2]},d.Color.prototype._getBrightness=function(){return this.hsba||(this.hsba=f._rgbaToHSBA(this._array)),this.hsba[2]*this.maxes[e.HSB][2]},d.Color.prototype._getGreen=function(){return this._array[1]*this.maxes[e.RGB][1]},d.Color.prototype._getHue=function(){return this.mode===e.HSB?(this.hsba||(this.hsba=f._rgbaToHSBA(this._array)),this.hsba[0]*this.maxes[e.HSB][0]):(this.hsla||(this.hsla=f._rgbaToHSLA(this._array)),this.hsla[0]*this.maxes[e.HSL][0])},d.Color.prototype._getLightness=function(){return this.hsla||(this.hsla=f._rgbaToHSLA(this._array)),this.hsla[2]*this.maxes[e.HSL][2]},d.Color.prototype._getRed=function(){return this._array[0]*this.maxes[e.RGB][0]},d.Color.prototype._getSaturation=function(){return this.mode===e.HSB?(this.hsba||(this.hsba=f._rgbaToHSBA(this._array)),this.hsba[1]*this.maxes[e.HSB][1]):(this.hsla||(this.hsla=f._rgbaToHSLA(this._array)),this.hsla[1]*this.maxes[e.HSL][1])};var g={aliceblue:"#f0f8ff",antiquewhite:"#faebd7",aqua:"#00ffff",aquamarine:"#7fffd4",azure:"#f0ffff",beige:"#f5f5dc",bisque:"#ffe4c4",black:"#000000",blanchedalmond:"#ffebcd",blue:"#0000ff",blueviolet:"#8a2be2",brown:"#a52a2a",burlywood:"#deb887",cadetblue:"#5f9ea0",chartreuse:"#7fff00",chocolate:"#d2691e",coral:"#ff7f50",cornflowerblue:"#6495ed",cornsilk:"#fff8dc",crimson:"#dc143c",cyan:"#00ffff",darkblue:"#00008b",darkcyan:"#008b8b",darkgoldenrod:"#b8860b",darkgray:"#a9a9a9",darkgreen:"#006400",darkgrey:"#a9a9a9",darkkhaki:"#bdb76b",darkmagenta:"#8b008b",darkolivegreen:"#556b2f",darkorange:"#ff8c00",darkorchid:"#9932cc",darkred:"#8b0000",darksalmon:"#e9967a",darkseagreen:"#8fbc8f",darkslateblue:"#483d8b",darkslategray:"#2f4f4f",darkslategrey:"#2f4f4f",darkturquoise:"#00ced1",darkviolet:"#9400d3",deeppink:"#ff1493",deepskyblue:"#00bfff",dimgray:"#696969",dimgrey:"#696969",dodgerblue:"#1e90ff",firebrick:"#b22222",floralwhite:"#fffaf0",forestgreen:"#228b22",fuchsia:"#ff00ff",gainsboro:"#dcdcdc",ghostwhite:"#f8f8ff",gold:"#ffd700",goldenrod:"#daa520",gray:"#808080",green:"#008000",greenyellow:"#adff2f",grey:"#808080",honeydew:"#f0fff0",hotpink:"#ff69b4",indianred:"#cd5c5c",indigo:"#4b0082",ivory:"#fffff0",khaki:"#f0e68c",lavender:"#e6e6fa",lavenderblush:"#fff0f5",lawngreen:"#7cfc00",lemonchiffon:"#fffacd",lightblue:"#add8e6",lightcoral:"#f08080",lightcyan:"#e0ffff",lightgoldenrodyellow:"#fafad2",lightgray:"#d3d3d3",lightgreen:"#90ee90",lightgrey:"#d3d3d3",lightpink:"#ffb6c1",lightsalmon:"#ffa07a",lightseagreen:"#20b2aa",lightskyblue:"#87cefa",lightslategray:"#778899",lightslategrey:"#778899",lightsteelblue:"#b0c4de",lightyellow:"#ffffe0",lime:"#00ff00",limegreen:"#32cd32",linen:"#faf0e6",magenta:"#ff00ff",maroon:"#800000",mediumaquamarine:"#66cdaa",mediumblue:"#0000cd",mediumorchid:"#ba55d3",mediumpurple:"#9370db",mediumseagreen:"#3cb371",mediumslateblue:"#7b68ee",mediumspringgreen:"#00fa9a",mediumturquoise:"#48d1cc",mediumvioletred:"#c71585",midnightblue:"#191970",mintcream:"#f5fffa",mistyrose:"#ffe4e1",moccasin:"#ffe4b5",navajowhite:"#ffdead",navy:"#000080",oldlace:"#fdf5e6",olive:"#808000",olivedrab:"#6b8e23",orange:"#ffa500",orangered:"#ff4500",orchid:"#da70d6",palegoldenrod:"#eee8aa",palegreen:"#98fb98",paleturquoise:"#afeeee",palevioletred:"#db7093",papayawhip:"#ffefd5",peachpuff:"#ffdab9",peru:"#cd853f",pink:"#ffc0cb",plum:"#dda0dd",powderblue:"#b0e0e6",purple:"#800080",red:"#ff0000",rosybrown:"#bc8f8f",royalblue:"#4169e1",saddlebrown:"#8b4513",salmon:"#fa8072",sandybrown:"#f4a460",seagreen:"#2e8b57",seashell:"#fff5ee",sienna:"#a0522d",silver:"#c0c0c0",skyblue:"#87ceeb",slateblue:"#6a5acd",slategray:"#708090",slategrey:"#708090",snow:"#fffafa",springgreen:"#00ff7f",steelblue:"#4682b4",tan:"#d2b48c",teal:"#008080",thistle:"#d8bfd8",tomato:"#ff6347",turquoise:"#40e0d0",violet:"#ee82ee",wheat:"#f5deb3",white:"#ffffff",whitesmoke:"#f5f5f5",yellow:"#ffff00",yellowgreen:"#9acd32"},h=/\s*/,i=/(\d{1,3})/,j=/((?:\d+(?:\.\d+)?)|(?:\.\d+))/,k=new RegExp(j.source+"%"),l={HEX3:/^#([a-f0-9])([a-f0-9])([a-f0-9])$/i,HEX4:/^#([a-f0-9])([a-f0-9])([a-f0-9])([a-f0-9])$/i,HEX6:/^#([a-f0-9]{2})([a-f0-9]{2})([a-f0-9]{2})$/i,HEX8:/^#([a-f0-9]{2})([a-f0-9]{2})([a-f0-9]{2})([a-f0-9]{2})$/i,RGB:new RegExp(["^rgb\\(",i.source,",",i.source,",",i.source,"\\)$"].join(h.source),"i"),RGB_PERCENT:new RegExp(["^rgb\\(",k.source,",",k.source,",",k.source,"\\)$"].join(h.source),"i"),RGBA:new RegExp(["^rgba\\(",i.source,",",i.source,",",i.source,",",j.source,"\\)$"].join(h.source),"i"),RGBA_PERCENT:new RegExp(["^rgba\\(",k.source,",",k.source,",",k.source,",",j.source,"\\)$"].join(h.source),"i"),HSL:new RegExp(["^hsl\\(",i.source,",",k.source,",",k.source,"\\)$"].join(h.source),"i"),HSLA:new RegExp(["^hsla\\(",i.source,",",k.source,",",k.source,",",j.source,"\\)$"].join(h.source),"i"),HSB:new RegExp(["^hsb\\(",i.source,",",k.source,",",k.source,"\\)$"].join(h.source),"i"),HSBA:new RegExp(["^hsba\\(",i.source,",",k.source,",",k.source,",",j.source,"\\)$"].join(h.source),"i")};d.Color._parseInputs=function(a,b,c,h){var i=arguments.length,j=this.mode,k=this.maxes,m=[];if(i>=3)return m[0]=a/k[j][0],m[1]=b/k[j][1],m[2]=c/k[j][2],m[3]="number"==typeof h?h/k[j][3]:1,m=m.map(function(a){return Math.max(Math.min(a,1),0)}),j===e.HSL?f._hslaToRGBA(m):j===e.HSB?f._hsbaToRGBA(m):m;if(1===i&&"string"==typeof a){var n=a.trim().toLowerCase();if(g[n])return d.Color._parseInputs.call(this,g[n]);if(l.HEX3.test(n))return m=l.HEX3.exec(n).slice(1).map(function(a){return parseInt(a+a,16)/255}),m[3]=1,m;if(l.HEX6.test(n))return m=l.HEX6.exec(n).slice(1).map(function(a){return parseInt(a,16)/255}),m[3]=1,m;if(l.HEX4.test(n))return m=l.HEX4.exec(n).slice(1).map(function(a){return parseInt(a+a,16)/255});if(l.HEX8.test(n))return m=l.HEX8.exec(n).slice(1).map(function(a){return parseInt(a,16)/255});if(l.RGB.test(n))return m=l.RGB.exec(n).slice(1).map(function(a){return a/255}),m[3]=1,m;if(l.RGB_PERCENT.test(n))return m=l.RGB_PERCENT.exec(n).slice(1).map(function(a){return parseFloat(a)/100}),m[3]=1,m;if(l.RGBA.test(n))return m=l.RGBA.exec(n).slice(1).map(function(a,b){return 3===b?parseFloat(a):a/255});if(l.RGBA_PERCENT.test(n))return m=l.RGBA_PERCENT.exec(n).slice(1).map(function(a,b){return 3===b?parseFloat(a):parseFloat(a)/100});if(l.HSL.test(n)?(m=l.HSL.exec(n).slice(1).map(function(a,b){return 0===b?parseInt(a,10)/360:parseInt(a,10)/100}),m[3]=1):l.HSLA.test(n)&&(m=l.HSLA.exec(n).slice(1).map(function(a,b){return 0===b?parseInt(a,10)/360:3===b?parseFloat(a):parseInt(a,10)/100})),m=m.map(function(a){return Math.max(Math.min(a,1),0)}),m.length)return f._hslaToRGBA(m);if(l.HSB.test(n)?(m=l.HSB.exec(n).slice(1).map(function(a,b){return 0===b?parseInt(a,10)/360:parseInt(a,10)/100}),m[3]=1):l.HSBA.test(n)&&(m=l.HSBA.exec(n).slice(1).map(function(a,b){return 0===b?parseInt(a,10)/360:3===b?parseFloat(a):parseInt(a,10)/100})),m=m.map(function(a){return Math.max(Math.min(a,1),0)}),m.length)return f._hsbaToRGBA(m);m=[1,1,1,1]}else{if(1!==i&&2!==i||"number"!=typeof a)throw new Error(arguments+"is not a valid color representation.");m[0]=a/k[j][2],m[1]=a/k[j][2],m[2]=a/k[j][2],m[3]="number"==typeof b?b/k[j][3]:1,m=m.map(function(a){return Math.max(Math.min(a,1),0)})}return m},b.exports=d.Color},{"../core/constants":20,"../core/core":21,"./color_conversion":13}],16:[function(a,b,c){"use strict";var d=a("../core/core"),e=a("../core/constants");a("./p5.Color"),d.prototype.background=function(){return arguments[0]instanceof d.Image?this.image(arguments[0],0,0,this.width,this.height):this._renderer.background.apply(this._renderer,arguments),this},d.prototype.clear=function(){return this._renderer.clear(),this},d.prototype.colorMode=function(a,b,c,f,g){if(d._validateParameters("colorMode",arguments),a===e.RGB||a===e.HSB||a===e.HSL){this._colorMode=a;var h=this._colorMaxes[a];2===arguments.length?(h[0]=b,h[1]=b,h[2]=b,h[3]=b):4===arguments.length?(h[0]=b,h[1]=c,h[2]=f):5===arguments.length&&(h[0]=b,h[1]=c,h[2]=f,h[3]=g)}return this},d.prototype.fill=function(){return this._renderer._setProperty("_fillSet",!0),this._renderer._setProperty("_doFill",!0),this._renderer.fill.apply(this._renderer,arguments),this},d.prototype.noFill=function(){return this._renderer._setProperty("_doFill",!1),this},d.prototype.noStroke=function(){return this._renderer._setProperty("_doStroke",!1),this},d.prototype.stroke=function(){return this._renderer._setProperty("_strokeSet",!0),this._renderer._setProperty("_doStroke",!0),this._renderer.stroke.apply(this._renderer,arguments),this},b.exports=d},{"../core/constants":20,"../core/core":21,"./p5.Color":15}],17:[function(a,b,c){"use strict";var d=a("./core"),e=a("./constants"),f=a("./canvas");a("./error_helpers"),d.prototype.arc=function(a,b,c,f,g,h,i){if(d._validateParameters("arc",arguments),!this._renderer._doStroke&&!this._renderer._doFill)return this;for(g=this._toRadians(g),h=this._toRadians(h);g<0;)g+=e.TWO_PI;for(;h<0;)h+=e.TWO_PI;return g%=e.TWO_PI,h%=e.TWO_PI,h===g&&(h+=e.TWO_PI),g=g<=e.HALF_PI?Math.atan(c/f*Math.tan(g)):g>e.HALF_PI&&g<=3*e.HALF_PI?Math.atan(c/f*Math.tan(g))+e.PI:Math.atan(c/f*Math.tan(g))+e.TWO_PI,h=h<=e.HALF_PI?Math.atan(c/f*Math.tan(h)):h>e.HALF_PI&&h<=3*e.HALF_PI?Math.atan(c/f*Math.tan(h))+e.PI:Math.atan(c/f*Math.tan(h))+e.TWO_PI,g>h&&(h+=e.TWO_PI),c=Math.abs(c),f=Math.abs(f),this._renderer.arc(a,b,c,f,g,h,i),this},d.prototype.ellipse=function(a,b,c,e,g){if(d._validateParameters("ellipse",arguments),c<0&&(c=Math.abs(c)),void 0===e?e=c:e<0&&(e=Math.abs(e)),this._renderer._doStroke||this._renderer._doFill){var h=f.modeAdjust(a,b,c,e,this._renderer._ellipseMode);this._renderer.ellipse([h.x,h.y,h.w,h.h,g])}return this},d.prototype.line=function(){return d._validateParameters("line",arguments),this._renderer._doStroke&&this._renderer.line.apply(this._renderer,arguments),this},d.prototype.point=function(){return d._validateParameters("point",arguments),this._renderer._doStroke&&this._renderer.point.apply(this._renderer,arguments),this},d.prototype.quad=function(){return d._validateParameters("quad",arguments),(this._renderer._doStroke||this._renderer._doFill)&&this._renderer.quad.apply(this._renderer,arguments),this},d.prototype.rect=function(){if(d._validateParameters("rect",arguments),this._renderer._doStroke||this._renderer._doFill){for(var a=f.modeAdjust(arguments[0],arguments[1],arguments[2],arguments[3],this._renderer._rectMode),b=[a.x,a.y,a.w,a.h],c=4;c<arguments.length;c++)b[c]=arguments[c];this._renderer.rect(b)}return this},d.prototype.triangle=function(){return d._validateParameters("triangle",arguments),(this._renderer._doStroke||this._renderer._doFill)&&this._renderer.triangle(arguments),this},b.exports=d},{"./canvas":19,"./constants":20,"./core":21,"./error_helpers":24}],18:[function(a,b,c){"use strict";var d=a("./core"),e=a("./constants");d.prototype.ellipseMode=function(a){return d._validateParameters("ellipseMode",arguments),a!==e.CORNER&&a!==e.CORNERS&&a!==e.RADIUS&&a!==e.CENTER||(this._renderer._ellipseMode=a),this},d.prototype.noSmooth=function(){return this._renderer.noSmooth(),this},d.prototype.rectMode=function(a){return d._validateParameters("rectMode",arguments),a!==e.CORNER&&a!==e.CORNERS&&a!==e.RADIUS&&a!==e.CENTER||(this._renderer._rectMode=a),this},d.prototype.smooth=function(){return this._renderer.smooth(),this},d.prototype.strokeCap=function(a){return d._validateParameters("strokeCap",arguments),a!==e.ROUND&&a!==e.SQUARE&&a!==e.PROJECT||this._renderer.strokeCap(a),this},d.prototype.strokeJoin=function(a){return d._validateParameters("strokeJoin",arguments),a!==e.ROUND&&a!==e.BEVEL&&a!==e.MITER||this._renderer.strokeJoin(a),this},d.prototype.strokeWeight=function(a){return d._validateParameters("strokeWeight",arguments),this._renderer.strokeWeight(a),this},b.exports=d},{"./constants":20,"./core":21}],19:[function(a,b,c){"use strict";var d=a("./constants");b.exports={modeAdjust:function(a,b,c,e,f){return f===d.CORNER?{x:a,y:b,w:c,h:e}:f===d.CORNERS?{x:a,y:b,w:c-a,h:e-b}:f===d.RADIUS?{x:a-c,y:b-e,w:2*c,h:2*e}:f===d.CENTER?{x:a-.5*c,y:b-.5*e,w:c,h:e}:void 0},arcModeAdjust:function(a,b,c,e,f){return f===d.CORNER?{x:a+.5*c,y:b+.5*e,w:c,h:e}:f===d.CORNERS?{x:a,y:b,w:c+a,h:e+b}:f===d.RADIUS?{x:a,y:b,w:2*c,h:2*e}:f===d.CENTER?{x:a,y:b,w:c,h:e}:void 0}}},{"./constants":20}],20:[function(a,b,c){"use strict";var d=Math.PI;b.exports={P2D:"p2d",WEBGL:"webgl",ARROW:"default",CROSS:"crosshair",HAND:"pointer",MOVE:"move",TEXT:"text",WAIT:"wait",HALF_PI:d/2,PI:d,QUARTER_PI:d/4,TAU:2*d,TWO_PI:2*d,DEGREES:"degrees",RADIANS:"radians",DEG_TO_RAD:d/180,RAD_TO_DEG:180/d,CORNER:"corner",CORNERS:"corners",RADIUS:"radius",RIGHT:"right",LEFT:"left",CENTER:"center",TOP:"top",BOTTOM:"bottom",BASELINE:"alphabetic",POINTS:0,LINES:1,LINE_STRIP:3,LINE_LOOP:2,TRIANGLES:4,TRIANGLE_FAN:6,TRIANGLE_STRIP:5,QUADS:"quads",QUAD_STRIP:"quad_strip",CLOSE:"close",OPEN:"open",CHORD:"chord",PIE:"pie",PROJECT:"square",SQUARE:"butt",ROUND:"round",BEVEL:"bevel",MITER:"miter",RGB:"rgb",HSB:"hsb",HSL:"hsl",AUTO:"auto",ALT:18,BACKSPACE:8,CONTROL:17,DELETE:46,DOWN_ARROW:40,ENTER:13,ESCAPE:27,LEFT_ARROW:37,OPTION:18,RETURN:13,RIGHT_ARROW:39,SHIFT:16,TAB:9,UP_ARROW:38,BLEND:"source-over",ADD:"lighter",DARKEST:"darken",LIGHTEST:"lighten",DIFFERENCE:"difference",EXCLUSION:"exclusion",MULTIPLY:"multiply",SCREEN:"screen",REPLACE:"copy",OVERLAY:"overlay",HARD_LIGHT:"hard-light",SOFT_LIGHT:"soft-light",DODGE:"color-dodge",BURN:"color-burn",THRESHOLD:"threshold",GRAY:"gray",OPAQUE:"opaque",INVERT:"invert",POSTERIZE:"posterize",DILATE:"dilate",ERODE:"erode",BLUR:"blur",NORMAL:"normal",ITALIC:"italic",BOLD:"bold",_DEFAULT_TEXT_FILL:"#000000",_DEFAULT_LEADMULT:1.25,_CTX_MIDDLE:"middle",LINEAR:"linear",QUADRATIC:"quadratic",BEZIER:"bezier",CURVE:"curve",STROKE:"stroke",FILL:"fill",TEXTURE:"texture",IMMEDIATE:"immediate",LANDSCAPE:"landscape",PORTRAIT:"portrait",_DEFAULT_STROKE:"#000000",_DEFAULT_FILL:"#FFFFFF"}},{}],21:[function(a,b,c){"use strict";a("./shim");var d=a("./constants"),e=function(a,b,c){"boolean"==typeof b&&void 0===c&&(c=b,b=void 0),this._setupDone=!1,this._pixelDensity=Math.ceil(window.devicePixelRatio)||1,this._userNode=b,this._curElement=null,this._elements=[],this._requestAnimId=0,this._preloadCount=0,this._isGlobal=!1,this._loop=!0,this._initializeInstanceVariables(),this._defaultCanvasSize={width:100,height:100},this._events={mousemove:null,mousedown:null,mouseup:null,dragend:null,dragover:null,click:null,dblclick:null,mouseover:null,mouseout:null,keydown:null,keyup:null,keypress:null,touchstart:null,touchmove:null,touchend:null,resize:null,blur:null},this._events.wheel=null,this._loadingScreenId="p5_loading",this._registeredMethods={};for(var d=Object.getOwnPropertyNames(e.prototype._registeredMethods),f=0;f<d.length;f++){var g=d[f];this._registeredMethods[g]=e.prototype._registeredMethods[g].slice()}window.DeviceOrientationEvent&&(this._events.deviceorientation=null),window.DeviceMotionEvent&&!window._isNodeWebkit&&(this._events.devicemotion=null),this._start=function(){this._userNode&&"string"==typeof this._userNode&&(this._userNode=document.getElementById(this._userNode));var a=this.preload||window.preload;if(a){var b=document.getElementById(this._loadingScreenId);if(!b){b=document.createElement("div"),b.innerHTML="Loading...",b.style.position="absolute",b.id=this._loadingScreenId;(this._userNode||document.body).appendChild(b)}for(var c in this._preloadMethods){this._preloadMethods[c]=this._preloadMethods[c]||e;var d=this._preloadMethods[c];d!==e.prototype&&d!==e||(this._isGlobal&&(window[c]=this._wrapPreload(this,c)),d=this),this._registeredPreloadMethods[c]=d[c],d[c]=this._wrapPreload(d,c)}a(),this._runIfPreloadsAreDone()}else this._setup(),this._runFrames(),this._draw()}.bind(this),this._runIfPreloadsAreDone=function(){var a=this._isGlobal?window:this;if(0===a._preloadCount){var b=document.getElementById(a._loadingScreenId);b&&b.parentNode.removeChild(b),a._setup(),a._runFrames(),a._draw()}},this._decrementPreload=function(){var a=this._isGlobal?window:this;"function"==typeof a.preload&&(a._setProperty("_preloadCount",a._preloadCount-1),a._runIfPreloadsAreDone())},this._wrapPreload=function(a,b){return function(){return this._incrementPreload(),this._registeredPreloadMethods[b].apply(a,arguments)}.bind(this)},this._incrementPreload=function(){var a=this._isGlobal?window:this;a._setProperty("_preloadCount",a._preloadCount+1)},this._setup=function(){this.createCanvas(this._defaultCanvasSize.width,this._defaultCanvasSize.height,"p2d");var a=this._isGlobal?window:this;if("function"==typeof a.preload)for(var b in this._preloadMethods)a[b]=this._preloadMethods[b][b],a[b]&&this&&(a[b]=a[b].bind(this));"function"==typeof a.setup&&a.setup();for(var c=document.getElementsByTagName("canvas"),d=0;d<c.length;d++){var e=c[d];"true"===e.dataset.hidden&&(e.style.visibility="",delete e.dataset.hidden)}this._setupDone=!0}.bind(this),this._draw=function(){var a=window.performance.now(),b=a-this._lastFrameTime,c=1e3/this._targetFrameRate;(!this._loop||b>=c-5)&&(this.redraw(),this._frameRate=1e3/(a-this._lastFrameTime),this._lastFrameTime=a,void 0!==this._updateMouseCoords&&this._updateMouseCoords()),this._loop&&(this._requestAnimId=window.requestAnimationFrame(this._draw))}.bind(this),this._runFrames=function(){this._updateInterval&&clearInterval(this._updateInterval)}.bind(this),this._setProperty=function(a,b){this[a]=b,this._isGlobal&&(window[a]=b)}.bind(this),this.remove=function(){var 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e.prototype[i]){var j=i.substring(2);this._events.hasOwnProperty(j)||(Math.hasOwnProperty(i)&&Math[i]===e.prototype[i]?h(i,e.prototype[i]):h(i,e.prototype[i].bind(this)))}else h(i,e.prototype[i]);for(var k in this)this.hasOwnProperty(k)&&h(k,this[k])}for(var l in this._events){var m=this["_on"+l];if(m){var n=m.bind(this);window.addEventListener(l,n,{passive:!1}),this._events[l]=n}}var 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This could cause problems later if you're not careful.")}})}catch(d){c('p5 had problems creating the global function "'+a+'", possibly because your code is already using that name as a variable. 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d._validateParameters("curve",arguments),this._renderer._doStroke&&this._renderer.curve.apply(this._renderer,arguments),this},d.prototype.curveDetail=function(a){return d._validateParameters("curveDetail",arguments),this._curveDetail=a,this},d.prototype.curveTightness=function(a){d._validateParameters("curveTightness",arguments),this._renderer._curveTightness=a},d.prototype.curvePoint=function(a,b,c,e,f){d._validateParameters("curvePoint",arguments);var g=f*f*f,h=f*f;return a*(-.5*g+h-.5*f)+b*(1.5*g-2.5*h+1)+c*(-1.5*g+2*h+.5*f)+e*(.5*g-.5*h)},d.prototype.curveTangent=function(a,b,c,e,f){d._validateParameters("curveTangent",arguments);var g=f*f;return a*(-3*g/2+2*f-.5)+b*(9*g/2-5*f)+c*(-9*g/2+4*f+.5)+e*(3*g/2-f)},b.exports=d},{"./core":21,"./error_helpers":24}],23:[function(a,b,c){"use strict";function d(){return window.innerWidth||document.documentElement&&document.documentElement.clientWidth||document.body&&document.body.clientWidth||0}function e(){return window.innerHeight||document.documentElement&&document.documentElement.clientHeight||document.body&&document.body.clientHeight||0}function f(a){if(!(document.fullscreenEnabled||document.webkitFullscreenEnabled||document.mozFullScreenEnabled||document.msFullscreenEnabled))throw new Error("Fullscreen not enabled in this browser.");a.requestFullscreen?a.requestFullscreen():a.mozRequestFullScreen?a.mozRequestFullScreen():a.webkitRequestFullscreen?a.webkitRequestFullscreen():a.msRequestFullscreen&&a.msRequestFullscreen()}function g(){document.exitFullscreen?document.exitFullscreen():document.mozCancelFullScreen?document.mozCancelFullScreen():document.webkitExitFullscreen?document.webkitExitFullscreen():document.msExitFullscreen&&document.msExitFullscreen()}var h=a("./core"),i=a("./constants"),j=[i.ARROW,i.CROSS,i.HAND,i.MOVE,i.TEXT,i.WAIT];h.prototype._frameRate=0,h.prototype._lastFrameTime=window.performance.now(),h.prototype._targetFrameRate=60;var k=window.print;h.prototype.print=function(){arguments.length?console.log.apply(console,arguments):k()},h.prototype.frameCount=0,h.prototype.focused=document.hasFocus(),h.prototype.cursor=function(a,b,c){var d="auto",e=this._curElement.elt;if(j.indexOf(a)>-1)d=a;else if("string"==typeof a){var f="";b&&c&&"number"==typeof b&&"number"==typeof c&&(f=b+" "+c),d="http://"===a.substring(0,7)||"https://"===a.substring(0,8)?"url("+a+") "+f+", auto":/\.(cur|jpg|jpeg|gif|png|CUR|JPG|JPEG|GIF|PNG)$/.test(a)?"url("+a+") "+f+", auto":a}e.style.cursor=d},h.prototype.frameRate=function(a){return h._validateParameters("frameRate",arguments),"number"!=typeof a||a<0?this._frameRate:(this._setProperty("_targetFrameRate",a),this._runFrames(),this)},h.prototype.getFrameRate=function(){return this.frameRate()},h.prototype.setFrameRate=function(a){return this.frameRate(a)},h.prototype.noCursor=function(){this._curElement.elt.style.cursor="none"},h.prototype.displayWidth=screen.width,h.prototype.displayHeight=screen.height,h.prototype.windowWidth=d(),h.prototype.windowHeight=e(),h.prototype._onresize=function(a){this._setProperty("windowWidth",d()),this._setProperty("windowHeight",e());var b,c=this._isGlobal?window:this;"function"==typeof c.windowResized&&(void 0===(b=c.windowResized(a))||b||a.preventDefault())},h.prototype.width=0,h.prototype.height=0,h.prototype.fullscreen=function(a){if(h._validateParameters("fullscreen",arguments),void 0===a)return document.fullscreenElement||document.webkitFullscreenElement||document.mozFullScreenElement||document.msFullscreenElement;a?f(document.documentElement):g()},h.prototype.pixelDensity=function(a){if(h._validateParameters("pixelDensity",arguments),"number"!=typeof a)return this._pixelDensity;this._pixelDensity=a,this.resizeCanvas(this.width,this.height,!0)},h.prototype.displayDensity=function(){return window.devicePixelRatio},h.prototype.getURL=function(){return location.href},h.prototype.getURLPath=function(){return location.pathname.split("/").filter(function(a){return""!==a})},h.prototype.getURLParams=function(){for(var a,b=/[?&]([^&=]+)(?:[&=])([^&=]+)/gim,c={};null!=(a=b.exec(location.search));)a.index===b.lastIndex&&b.lastIndex++,c[a[1]]=a[2];return c},b.exports=h},{"./constants":20,"./core":21}],24:[function(a,b,c){"use strict";var d=a("./core");a("./constants");d._validateParameters=d._friendlyFileLoadError=function(){};var e=null,f="https://github.com/processing/p5.js/wiki/Frequently-Asked-Questions#why-cant-i-assign-variables-using-p5-functions-and-variables-before-setup",g=function(){var b={},c=function(a){return Object.getOwnPropertyNames(a).filter(function(a){return"_"!==a[0]&&(!(a in b)&&(b[a]=!0,!0))}).map(function(b){var c;return c="function"==typeof a[b]?"function":b===b.toUpperCase()?"constant":"variable",{name:b,type:c}})};e=[].concat(c(d.prototype),c(a("./constants"))),e.sort(function(a,b){return b.name.length-a.name.length})},h=function(a,b){b||(b=console.log.bind(console)),e||g(),e.some(function(c){if(a.message&&null!==a.message.match("\\W?"+c.name+"\\W"))return b("Did you just try to use p5.js's "+c.name+("function"===c.type?"() ":" ")+c.type+"? 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return d("mousedown",a,this),d("touchstart",a,this),this},g.Element.prototype.doubleClicked=function(a){return d("dblclick",a,this),this},g.Element.prototype.mouseWheel=function(a){return d("wheel",a,this),this},g.Element.prototype.mouseReleased=function(a){return d("mouseup",a,this),d("touchend",a,this),this},g.Element.prototype.mouseClicked=function(a){return d("click",a,this),this},g.Element.prototype.mouseMoved=function(a){return d("mousemove",a,this),d("touchmove",a,this),this},g.Element.prototype.mouseOver=function(a){return d("mouseover",a,this),this},g.Element.prototype.changed=function(a){return d("change",a,this),this},g.Element.prototype.input=function(a){return d("input",a,this),this},g.Element.prototype.mouseOut=function(a){return d("mouseout",a,this),this},g.Element.prototype.touchStarted=function(a){return d("touchstart",a,this),d("mousedown",a,this),this},g.Element.prototype.touchMoved=function(a){return d("touchmove",a,this),d("mousemove",a,this),this},g.Element.prototype.touchEnded=function(a){return d("touchend",a,this),d("mouseup",a,this),this},g.Element.prototype.dragOver=function(a){return d("dragover",a,this),this},g.Element.prototype.dragLeave=function(a){return d("dragleave",a,this),this},g.Element.prototype.drop=function(a,b){function c(b){var c=new g.File(b);return function(b){c.data=b.target.result,a(c)}}return window.File&&window.FileReader&&window.FileList&&window.Blob?(e("dragover",function(a){a.stopPropagation(),a.preventDefault()},this),e("dragleave",function(a){a.stopPropagation(),a.preventDefault()},this),void 0!==b&&e("drop",b,this),e("drop",function(a){a.stopPropagation(),a.preventDefault();for(var b=a.dataTransfer.files,d=0;d<b.length;d++){var e=b[d],f=new FileReader;f.onload=c(e),e.type.indexOf("text")>-1?f.readAsText(e):f.readAsDataURL(e)}},this)):console.log("The File APIs are not fully supported in this 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a=this._pInst._elements.indexOf(this);-1!==a&&this._pInst._elements.splice(a,1);for(var b in this._events)this.elt.removeEventListener(b,this._events[b])},b.exports=d.Graphics},{"./constants":20,"./core":21}],28:[function(a,b,c){"use strict";function d(a,b){for(var c=1;c<arguments.length;c++){var d=arguments[c];if(void 0!==d&&null!==d)for(var e in d)d.hasOwnProperty(e)&&(a[e]=d[e])}return a}function e(a){var b=0,c=0;if(a.offsetParent)do{b+=a.offsetLeft,c+=a.offsetTop}while(a=a.offsetParent);else b+=a.offsetLeft,c+=a.offsetTop;return[b,c]}var f=a("./core"),g=a("../core/constants");f.Renderer=function(a,b,c){f.Element.call(this,a,b),this.canvas=a,this._pInst=b,c?(this._isMainCanvas=!0,this._pInst._setProperty("_curElement",this),this._pInst._setProperty("canvas",this.canvas),this._pInst._setProperty("width",this.width),this._pInst._setProperty("height",this.height)):(this.canvas.style.display="none",this._styles=[]),this._textSize=12,this._textLeading=15,this._textFont="sans-serif",this._textStyle=g.NORMAL,this._textAscent=null,this._textDescent=null,this._rectMode=g.CORNER,this._ellipseMode=g.CENTER,this._curveTightness=0,this._imageMode=g.CORNER,this._tint=null,this._doStroke=!0,this._doFill=!0,this._strokeSet=!1,this._fillSet=!1},f.Renderer.prototype=Object.create(f.Element.prototype),f.Renderer.prototype.push=function(){return{properties:{_doStroke:this._doStroke,_strokeSet:this._strokeSet,_doFill:this._doFill,_fillSet:this._fillSet,_tint:this._tint,_imageMode:this._imageMode,_rectMode:this._rectMode,_ellipseMode:this._ellipseMode,_textFont:this._textFont,_textLeading:this._textLeading,_textSize:this._textSize,_textStyle:this._textStyle}}},f.Renderer.prototype.pop=function(a){a.properties&&d(this,a.properties)},f.Renderer.prototype.resize=function(a,b){this.width=a,this.height=b,this.elt.width=a*this._pInst._pixelDensity,this.elt.height=b*this._pInst._pixelDensity,this.elt.style.width=a+"px",this.elt.style.height=b+"px",this._isMainCanvas&&(this._pInst._setProperty("width",this.width),this._pInst._setProperty("height",this.height))},f.Renderer.prototype.textLeading=function(a){return"number"==typeof a?(this._setProperty("_textLeading",a),this):this._textLeading},f.Renderer.prototype.textSize=function(a){return"number"==typeof a?(this._setProperty("_textSize",a),this._setProperty("_textLeading",a*g._DEFAULT_LEADMULT),this._applyTextProperties()):this._textSize},f.Renderer.prototype.textStyle=function(a){return a?(a!==g.NORMAL&&a!==g.ITALIC&&a!==g.BOLD||this._setProperty("_textStyle",a),this._applyTextProperties()):this._textStyle},f.Renderer.prototype.textAscent=function(){return null===this._textAscent&&this._updateTextMetrics(),this._textAscent},f.Renderer.prototype.textDescent=function(){return null===this._textDescent&&this._updateTextMetrics(),this._textDescent},f.Renderer.prototype._applyDefaults=function(){return this},f.Renderer.prototype._isOpenType=function(a){return"object"==typeof(a=a||this._textFont)&&a.font&&a.font.supported},f.Renderer.prototype._updateTextMetrics=function(){if(this._isOpenType())return this._setProperty("_textAscent",this._textFont._textAscent()),this._setProperty("_textDescent",this._textFont._textDescent()),this;var a=document.createElement("span");a.style.fontFamily=this._textFont,a.style.fontSize=this._textSize+"px",a.innerHTML="ABCjgq|";var b=document.createElement("div");b.style.display="inline-block",b.style.width="1px",b.style.height="0px";var c=document.createElement("div");c.appendChild(a),c.appendChild(b),c.style.height="0px",c.style.overflow="hidden",document.body.appendChild(c),b.style.verticalAlign="baseline";var d=e(b),f=e(a),g=d[1]-f[1];b.style.verticalAlign="bottom",d=e(b),f=e(a);var h=d[1]-f[1],i=h-g;return document.body.removeChild(c),this._setProperty("_textAscent",g),this._setProperty("_textDescent",i),this},b.exports=f.Renderer},{"../core/constants":20,"./core":21}],29:[function(a,b,c){"use strict";var d=a("./core"),e=a("./canvas"),f=a("./constants"),g=a("../image/filters");a("./p5.Renderer");var h="rgba(0,0,0,0)";d.Renderer2D=function(a,b,c){return d.Renderer.call(this,a,b,c),this.drawingContext=this.canvas.getContext("2d"),this._pInst._setProperty("drawingContext",this.drawingContext),this},d.Renderer2D.prototype=Object.create(d.Renderer.prototype),d.Renderer2D.prototype._applyDefaults=function(){this._cachedFillStyle=this._cachedStrokeStyle=void 0,this._setFill(f._DEFAULT_FILL),this._setStroke(f._DEFAULT_STROKE),this.drawingContext.lineCap=f.ROUND,this.drawingContext.font="normal 12px sans-serif"},d.Renderer2D.prototype.resize=function(a,b){d.Renderer.prototype.resize.call(this,a,b),this.drawingContext.scale(this._pInst._pixelDensity,this._pInst._pixelDensity)},d.Renderer2D.prototype.background=function(){if(this.drawingContext.save(),this.drawingContext.setTransform(1,0,0,1,0,0),this.drawingContext.scale(this._pInst._pixelDensity,this._pInst._pixelDensity),arguments[0]instanceof d.Image)this._pInst.image(arguments[0],0,0,this.width,this.height);else{var a=this._getFill(),b=this._pInst.color.apply(this._pInst,arguments),c=b.toString();this._setFill(c),this.drawingContext.fillRect(0,0,this.width,this.height),this._setFill(a)}this.drawingContext.restore()},d.Renderer2D.prototype.clear=function(){this.drawingContext.save(),this.drawingContext.setTransform(1,0,0,1,0,0),this.drawingContext.clearRect(0,0,this.width,this.height),this.drawingContext.restore()},d.Renderer2D.prototype.fill=function(){var a=this._pInst.color.apply(this._pInst,arguments);this._setFill(a.toString())},d.Renderer2D.prototype.stroke=function(){var a=this._pInst.color.apply(this._pInst,arguments);this._setStroke(a.toString())},d.Renderer2D.prototype.image=function(a,b,c,e,f,g,h,i,j){var k;try{this._tint&&(d.MediaElement&&a instanceof d.MediaElement&&a.loadPixels(),a.canvas&&(k=this._getTintedImageCanvas(a))),k||(k=a.canvas||a.elt),this.drawingContext.drawImage(k,b,c,e,f,g,h,i,j)}catch(a){if("NS_ERROR_NOT_AVAILABLE"!==a.name)throw a}},d.Renderer2D.prototype._getTintedImageCanvas=function(a){if(!a.canvas)return a;var b=g._toPixels(a.canvas),c=document.createElement("canvas");c.width=a.canvas.width,c.height=a.canvas.height;for(var d=c.getContext("2d"),e=d.createImageData(a.canvas.width,a.canvas.height),f=e.data,h=0;h<b.length;h+=4){var i=b[h],j=b[h+1],k=b[h+2],l=b[h+3];f[h]=i*this._tint[0]/255,f[h+1]=j*this._tint[1]/255,f[h+2]=k*this._tint[2]/255,f[h+3]=l*this._tint[3]/255}return d.putImageData(e,0,0),c},d.Renderer2D.prototype.blendMode=function(a){this.drawingContext.globalCompositeOperation=a},d.Renderer2D.prototype.blend=function(){var a=this.drawingContext.globalCompositeOperation,b=arguments[arguments.length-1],c=Array.prototype.slice.call(arguments,0,arguments.length-1);this.drawingContext.globalCompositeOperation=b,this._pInst?this._pInst.copy.apply(this._pInst,c):this.copy.apply(this,c),this.drawingContext.globalCompositeOperation=a},d.Renderer2D.prototype.copy=function(){var a,b,c,e,f,g,h,i,j;if(9===arguments.length)a=arguments[0],b=arguments[1],c=arguments[2],e=arguments[3],f=arguments[4],g=arguments[5],h=arguments[6],i=arguments[7],j=arguments[8];else{if(8!==arguments.length)throw new Error("Signature not supported");a=this._pInst,b=arguments[0],c=arguments[1],e=arguments[2],f=arguments[3],g=arguments[4],h=arguments[5],i=arguments[6],j=arguments[7]}d.Renderer2D._copyHelper(this,a,b,c,e,f,g,h,i,j)},d.Renderer2D._copyHelper=function(a,b,c,d,e,f,g,h,i,j){b.loadPixels();var k=b.canvas.width/b.width;a.drawingContext.drawImage(b.canvas,k*c,k*d,k*e,k*f,g,h,i,j)},d.Renderer2D.prototype.get=function(a,b,c,e){if(void 0===a&&void 0===b&&void 0===c&&void 0===e?(a=0,b=0,c=this.width,e=this.height):void 0===c&&void 0===e&&(c=1,e=1),a+c<0||b+e<0||a>this.width||b>this.height)return[0,0,0,255];var f=this._pInst||this;f.loadPixels();var g=f._pixelDensity;a=Math.floor(a),b=Math.floor(b),c=Math.floor(c),e=Math.floor(e);var h=a*g,i=b*g;if(1!==c||1!==e||this instanceof d.RendererGL){var j=Math.min(c,f.width),k=Math.min(e,f.height),l=j*g,m=k*g,n=new d.Image(j,k);return n.canvas.getContext("2d").drawImage(this.canvas,h,i,l,m,0,0,j,k),n}var o=this.drawingContext.getImageData(h,i,1,1).data;return[o[0],o[1],o[2],o[3]]},d.Renderer2D.prototype.loadPixels=function(){var a=this._pInst||this,b=a._pixelDensity,c=this.width*b,d=this.height*b,e=this.drawingContext.getImageData(0,0,c,d);a._setProperty("imageData",e),a._setProperty("pixels",e.data)},d.Renderer2D.prototype.set=function(a,b,c){a=Math.floor(a),b=Math.floor(b);var e=this._pInst||this;if(c instanceof d.Image)this.drawingContext.save(),this.drawingContext.setTransform(1,0,0,1,0,0),this.drawingContext.scale(e._pixelDensity,e._pixelDensity),this.drawingContext.drawImage(c.canvas,a,b),this.loadPixels.call(e),this.drawingContext.restore();else{var f=0,g=0,h=0,i=0,j=4*(b*e._pixelDensity*(this.width*e._pixelDensity)+a*e._pixelDensity);if(e.imageData||e.loadPixels.call(e),"number"==typeof c)j<e.pixels.length&&(f=c,g=c,h=c,i=255);else if(c instanceof Array){if(c.length<4)throw new Error("pixel array must be of the form [R, G, B, A]");j<e.pixels.length&&(f=c[0],g=c[1],h=c[2],i=c[3])}else c instanceof d.Color&&j<e.pixels.length&&(f=c.levels[0],g=c.levels[1],h=c.levels[2],i=c.levels[3]);for(var k=0;k<e._pixelDensity;k++)for(var l=0;l<e._pixelDensity;l++)j=4*((b*e._pixelDensity+l)*this.width*e._pixelDensity+(a*e._pixelDensity+k)),e.pixels[j]=f,e.pixels[j+1]=g,e.pixels[j+2]=h,e.pixels[j+3]=i}},d.Renderer2D.prototype.updatePixels=function(a,b,c,d){var e=this._pInst||this,f=e._pixelDensity;void 0===a&&void 0===b&&void 0===c&&void 0===d&&(a=0,b=0,c=this.width,d=this.height),c*=f,d*=f,this.drawingContext.putImageData(e.imageData,a,b,0,0,c,d)},d.Renderer2D.prototype._acuteArcToBezier=function(a,b){var c=b/2,d=Math.cos(c),e=Math.sin(c),f=1/Math.tan(c),g=a+c,h=Math.cos(g),i=Math.sin(g),j=(4-d)/3,k=e+(d-j)*f;return{ax:Math.cos(a),ay:Math.sin(a),bx:j*h+k*i,by:j*i-k*h,cx:j*h-k*i,cy:j*i+k*h,dx:Math.cos(a+b),dy:Math.sin(a+b)}},d.Renderer2D.prototype.arc=function(a,b,c,d,g,h,i){for(var j=this.drawingContext,k=e.arcModeAdjust(a,b,c,d,this._ellipseMode),l=k.w/2,m=k.h/2,n=1e-5,o=0,p=[];h-g>n;)o=Math.min(h-g,f.HALF_PI),p.push(this._acuteArcToBezier(g,o)),g+=o;return this._doFill&&(j.beginPath(),p.forEach(function(a,b){0===b&&j.moveTo(k.x+a.ax*l,k.y+a.ay*m),j.bezierCurveTo(k.x+a.bx*l,k.y+a.by*m,k.x+a.cx*l,k.y+a.cy*m,k.x+a.dx*l,k.y+a.dy*m)}),i!==f.PIE&&null!=i||j.lineTo(k.x,k.y),j.closePath(),j.fill()),this._doStroke&&(j.beginPath(),p.forEach(function(a,b){0===b&&j.moveTo(k.x+a.ax*l,k.y+a.ay*m),j.bezierCurveTo(k.x+a.bx*l,k.y+a.by*m,k.x+a.cx*l,k.y+a.cy*m,k.x+a.dx*l,k.y+a.dy*m)}),i===f.PIE?(j.lineTo(k.x,k.y),j.closePath()):i===f.CHORD&&j.closePath(),j.stroke()),this},d.Renderer2D.prototype.ellipse=function(a){var b=this.drawingContext,c=this._doFill,d=this._doStroke,e=a[0],f=a[1],g=a[2],i=a[3];if(c&&!d){if(this._getFill()===h)return this}else if(!c&&d&&this._getStroke()===h)return this;var j=.5522847498,k=g/2*j,l=i/2*j,m=e+g,n=f+i,o=e+g/2,p=f+i/2;b.beginPath(),b.moveTo(e,p),b.bezierCurveTo(e,p-l,o-k,f,o,f),b.bezierCurveTo(o+k,f,m,p-l,m,p),b.bezierCurveTo(m,p+l,o+k,n,o,n),b.bezierCurveTo(o-k,n,e,p+l,e,p),b.closePath(),c&&b.fill(),d&&b.stroke()},d.Renderer2D.prototype.line=function(a,b,c,d){var e=this.drawingContext;return this._doStroke?this._getStroke()===h?this:(e.lineWidth%2==1&&e.translate(.5,.5),e.beginPath(),e.moveTo(a,b),e.lineTo(c,d),e.stroke(),e.lineWidth%2==1&&e.translate(-.5,-.5),this):this},d.Renderer2D.prototype.point=function(a,b){var c=this.drawingContext;if(!this._doStroke)return this;if(this._getStroke()===h)return this;var d=this._getStroke(),e=this._getFill();a=Math.round(a),b=Math.round(b),this._setFill(d),c.lineWidth>1?(c.beginPath(),c.arc(a,b,c.lineWidth/2,0,f.TWO_PI,!1),c.fill()):c.fillRect(a,b,1,1),this._setFill(e)},d.Renderer2D.prototype.quad=function(a,b,c,d,e,f,g,i){var j=this.drawingContext,k=this._doFill,l=this._doStroke;if(k&&!l){if(this._getFill()===h)return this}else if(!k&&l&&this._getStroke()===h)return this;return j.beginPath(),j.moveTo(a,b),j.lineTo(c,d),j.lineTo(e,f),j.lineTo(g,i),j.closePath(),k&&j.fill(),l&&j.stroke(),this},d.Renderer2D.prototype.rect=function(a){var b=a[0],c=a[1],d=a[2],e=a[3],f=a[4],g=a[5],i=a[6],j=a[7],k=this.drawingContext,l=this._doFill,m=this._doStroke;if(l&&!m){if(this._getFill()===h)return this}else if(!l&&m&&this._getStroke()===h)return this;if(this._doStroke&&k.lineWidth%2==1&&k.translate(.5,.5),k.beginPath(),void 0===f)k.rect(b,c,d,e);else{void 0===g&&(g=f),void 0===i&&(i=g),void 0===j&&(j=i);var n=d/2,o=e/2;d<2*f&&(f=n),e<2*f&&(f=o),d<2*g&&(g=n),e<2*g&&(g=o),d<2*i&&(i=n),e<2*i&&(i=o),d<2*j&&(j=n),e<2*j&&(j=o),k.beginPath(),k.moveTo(b+f,c),k.arcTo(b+d,c,b+d,c+e,g),k.arcTo(b+d,c+e,b,c+e,i),k.arcTo(b,c+e,b,c,j),k.arcTo(b,c,b+d,c,f),k.closePath()}return this._doFill&&k.fill(),this._doStroke&&k.stroke(),this._doStroke&&k.lineWidth%2==1&&k.translate(-.5,-.5),this},d.Renderer2D.prototype.triangle=function(a){var b=this.drawingContext,c=this._doFill,d=this._doStroke,e=a[0],f=a[1],g=a[2],i=a[3],j=a[4],k=a[5];if(c&&!d){if(this._getFill()===h)return this}else if(!c&&d&&this._getStroke()===h)return this;b.beginPath(),b.moveTo(e,f),b.lineTo(g,i),b.lineTo(j,k),b.closePath(),c&&b.fill(),d&&b.stroke()},d.Renderer2D.prototype.endShape=function(a,b,c,d,e,g,h){if(0===b.length)return this;if(!this._doStroke&&!this._doFill)return this;var i,j=a===f.CLOSE;j&&!g&&b.push(b[0]);var k,l,m=b.length;if(!c||h!==f.POLYGON&&null!==h)if(!d||h!==f.POLYGON&&null!==h)if(!e||h!==f.POLYGON&&null!==h)if(h===f.POINTS)for(k=0;k<m;k++)i=b[k],this._doStroke&&this._pInst.stroke(i[6]),this._pInst.point(i[0],i[1]);else if(h===f.LINES)for(k=0;k+1<m;k+=2)i=b[k],this._doStroke&&this._pInst.stroke(b[k+1][6]),this._pInst.line(i[0],i[1],b[k+1][0],b[k+1][1]);else if(h===f.TRIANGLES)for(k=0;k+2<m;k+=3)i=b[k],this.drawingContext.beginPath(),this.drawingContext.moveTo(i[0],i[1]),this.drawingContext.lineTo(b[k+1][0],b[k+1][1]),this.drawingContext.lineTo(b[k+2][0],b[k+2][1]),this.drawingContext.lineTo(i[0],i[1]),this._doFill&&(this._pInst.fill(b[k+2][5]),this.drawingContext.fill()),this._doStroke&&(this._pInst.stroke(b[k+2][6]),this.drawingContext.stroke()),this.drawingContext.closePath();else if(h===f.TRIANGLE_STRIP)for(k=0;k+1<m;k++)i=b[k],this.drawingContext.beginPath(),this.drawingContext.moveTo(b[k+1][0],b[k+1][1]),this.drawingContext.lineTo(i[0],i[1]),this._doStroke&&this._pInst.stroke(b[k+1][6]),this._doFill&&this._pInst.fill(b[k+1][5]),k+2<m&&(this.drawingContext.lineTo(b[k+2][0],b[k+2][1]),this._doStroke&&this._pInst.stroke(b[k+2][6]),this._doFill&&this._pInst.fill(b[k+2][5])),this._doFillStrokeClose();else if(h===f.TRIANGLE_FAN){if(m>2){for(this.drawingContext.beginPath(),k=2;k<m;k++)i=b[k],this.drawingContext.moveTo(b[0][0],b[0][1]),this.drawingContext.lineTo(b[k-1][0],b[k-1][1]),this.drawingContext.lineTo(i[0],i[1]),this.drawingContext.lineTo(b[0][0],b[0][1]),k<m-1&&(this._doFill&&i[5]!==b[k+1][5]||this._doStroke&&i[6]!==b[k+1][6])&&(this._doFill&&(this._pInst.fill(i[5]),this.drawingContext.fill(),this._pInst.fill(b[k+1][5])),this._doStroke&&(this._pInst.stroke(i[6]),this.drawingContext.stroke(),this._pInst.stroke(b[k+1][6])),this.drawingContext.closePath(),this.drawingContext.beginPath());this._doFillStrokeClose()}}else if(h===f.QUADS)for(k=0;k+3<m;k+=4){for(i=b[k],this.drawingContext.beginPath(),this.drawingContext.moveTo(i[0],i[1]),l=1;l<4;l++)this.drawingContext.lineTo(b[k+l][0],b[k+l][1]);this.drawingContext.lineTo(i[0],i[1]),this._doFill&&this._pInst.fill(b[k+3][5]),this._doStroke&&this._pInst.stroke(b[k+3][6]),this._doFillStrokeClose()}else if(h===f.QUAD_STRIP){if(m>3)for(k=0;k+1<m;k+=2)i=b[k],this.drawingContext.beginPath(),k+3<m?(this.drawingContext.moveTo(b[k+2][0],b[k+2][1]),this.drawingContext.lineTo(i[0],i[1]),this.drawingContext.lineTo(b[k+1][0],b[k+1][1]),this.drawingContext.lineTo(b[k+3][0],b[k+3][1]),this._doFill&&this._pInst.fill(b[k+3][5]),this._doStroke&&this._pInst.stroke(b[k+3][6])):(this.drawingContext.moveTo(i[0],i[1]),this.drawingContext.lineTo(b[k+1][0],b[k+1][1])),this._doFillStrokeClose()}else{for(this.drawingContext.beginPath(),this.drawingContext.moveTo(b[0][0],b[0][1]),k=1;k<m;k++)i=b[k],i.isVert&&(i.moveTo?this.drawingContext.moveTo(i[0],i[1]):this.drawingContext.lineTo(i[0],i[1]));this._doFillStrokeClose()}else{for(this.drawingContext.beginPath(),k=0;k<m;k++)b[k].isVert?b[k].moveTo?this.drawingContext.moveTo([0],b[k][1]):this.drawingContext.lineTo(b[k][0],b[k][1]):this.drawingContext.quadraticCurveTo(b[k][0],b[k][1],b[k][2],b[k][3]);this._doFillStrokeClose()}else{for(this.drawingContext.beginPath(),k=0;k<m;k++)b[k].isVert?b[k].moveTo?this.drawingContext.moveTo(b[k][0],b[k][1]):this.drawingContext.lineTo(b[k][0],b[k][1]):this.drawingContext.bezierCurveTo(b[k][0],b[k][1],b[k][2],b[k][3],b[k][4],b[k][5]);this._doFillStrokeClose()}else if(m>3){var n=[],o=1-this._curveTightness;for(this.drawingContext.beginPath(),this.drawingContext.moveTo(b[1][0],b[1][1]),k=1;k+2<m;k++)i=b[k],n[0]=[i[0],i[1]],n[1]=[i[0]+(o*b[k+1][0]-o*b[k-1][0])/6,i[1]+(o*b[k+1][1]-o*b[k-1][1])/6],n[2]=[b[k+1][0]+(o*b[k][0]-o*b[k+2][0])/6,b[k+1][1]+(o*b[k][1]-o*b[k+2][1])/6],n[3]=[b[k+1][0],b[k+1][1]],this.drawingContext.bezierCurveTo(n[1][0],n[1][1],n[2][0],n[2][1],n[3][0],n[3][1]);j&&this.drawingContext.lineTo(b[k+1][0],b[k+1][1]),this._doFillStrokeClose()}return c=!1,d=!1,e=!1,g=!1,j&&b.pop(),this},d.Renderer2D.prototype.noSmooth=function(){return"imageSmoothingEnabled"in this.drawingContext&&(this.drawingContext.imageSmoothingEnabled=!1),this},d.Renderer2D.prototype.smooth=function(){return"imageSmoothingEnabled"in this.drawingContext&&(this.drawingContext.imageSmoothingEnabled=!0),this},d.Renderer2D.prototype.strokeCap=function(a){return a!==f.ROUND&&a!==f.SQUARE&&a!==f.PROJECT||(this.drawingContext.lineCap=a),this},d.Renderer2D.prototype.strokeJoin=function(a){return a!==f.ROUND&&a!==f.BEVEL&&a!==f.MITER||(this.drawingContext.lineJoin=a),this},d.Renderer2D.prototype.strokeWeight=function(a){return this.drawingContext.lineWidth=void 0===a||0===a?1e-4:a,this},d.Renderer2D.prototype._getFill=function(){return this._cachedFillStyle||(this._cachedFillStyle=this.drawingContext.fillStyle),this._cachedFillStyle},d.Renderer2D.prototype._setFill=function(a){a!==this._cachedFillStyle&&(this.drawingContext.fillStyle=a,this._cachedFillStyle=a)},d.Renderer2D.prototype._getStroke=function(){return this._cachedStrokeStyle||(this._cachedStrokeStyle=this.drawingContext.strokeStyle),this._cachedStrokeStyle},d.Renderer2D.prototype._setStroke=function(a){a!==this._cachedStrokeStyle&&(this.drawingContext.strokeStyle=a,this._cachedStrokeStyle=a)},d.Renderer2D.prototype.bezier=function(a,b,c,d,e,f,g,h){return this._pInst.beginShape(),this._pInst.vertex(a,b),this._pInst.bezierVertex(c,d,e,f,g,h),this._pInst.endShape(),this},d.Renderer2D.prototype.curve=function(a,b,c,d,e,f,g,h){return this._pInst.beginShape(),this._pInst.curveVertex(a,b),this._pInst.curveVertex(c,d),this._pInst.curveVertex(e,f),this._pInst.curveVertex(g,h),this._pInst.endShape(),this},d.Renderer2D.prototype._doFillStrokeClose=function(){this._doFill&&this.drawingContext.fill(),this._doStroke&&this.drawingContext.stroke(),this.drawingContext.closePath()},d.Renderer2D.prototype.applyMatrix=function(a,b,c,d,e,f){this.drawingContext.transform(a,b,c,d,e,f)},d.Renderer2D.prototype.resetMatrix=function(){return this.drawingContext.setTransform(1,0,0,1,0,0),this.drawingContext.scale(this._pInst._pixelDensity,this._pInst._pixelDensity),this},d.Renderer2D.prototype.rotate=function(a){this.drawingContext.rotate(a)},d.Renderer2D.prototype.scale=function(a,b){return this.drawingContext.scale(a,b),this},d.Renderer2D.prototype.shearX=function(a){return this.drawingContext.transform(1,0,Math.tan(a),1,0,0),this},d.Renderer2D.prototype.shearY=function(a){return this.drawingContext.transform(1,Math.tan(a),0,1,0,0),this},d.Renderer2D.prototype.translate=function(a,b){return a instanceof d.Vector&&(b=a.y,a=a.x),this.drawingContext.translate(a,b),this},d.Renderer2D.prototype.text=function(a,b,c,d,e){var g,h,i,j,k,l,m,n,o,p,q=this._pInst,r=Number.MAX_VALUE;if((this._doFill||this._doStroke)&&void 0!==a){if("string"!=typeof a&&(a=a.toString()),a=a.replace(/(\t)/g,"  "),g=a.split("\n"),void 0!==d){for(o=0,i=0;i<g.length;i++)for(k="",n=g[i].split(" "),h=0;h<n.length;h++)l=k+n[h]+" ",m=this.textWidth(l),m>d?(k=n[h]+" ",o+=q.textLeading()):k=l;switch(this._rectMode===f.CENTER&&(b-=d/2,c-=e/2),this.drawingContext.textAlign){case f.CENTER:b+=d/2;break;case f.RIGHT:b+=d}if(void 0!==e){switch(this.drawingContext.textBaseline){case f.BOTTOM:c+=e-o;break;case f._CTX_MIDDLE:c+=(e-o)/2;break;case f.BASELINE:p=!0,this.drawingContext.textBaseline=f.TOP}r=c+e-q.textAscent()}for(i=0;i<g.length;i++){for(k="",n=g[i].split(" "),h=0;h<n.length;h++)l=k+n[h]+" ",m=this.textWidth(l),m>d&&k.length>0?(this._renderText(q,k,b,c,r),k=n[h]+" ",c+=q.textLeading()):k=l;this._renderText(q,k,b,c,r),c+=q.textLeading()}}else{var s=0,t=q.textAlign().vertical;for(t===f.CENTER?s=(g.length-1)*q.textLeading()/2:t===f.BOTTOM&&(s=(g.length-1)*q.textLeading()),j=0;j<g.length;j++)this._renderText(q,g[j],b,c-s,r),c+=q.textLeading()}return p&&(this.drawingContext.textBaseline=f.BASELINE),q}},d.Renderer2D.prototype._renderText=function(a,b,c,d,e){if(!(d>=e))return a.push(),this._isOpenType()?this._textFont._renderPath(b,c,d,{renderer:this}):(this._doStroke&&this._strokeSet&&this.drawingContext.strokeText(b,c,d),this._doFill&&(this._fillSet||this._setFill(f._DEFAULT_TEXT_FILL),this.drawingContext.fillText(b,c,d))),a.pop(),a},d.Renderer2D.prototype.textWidth=function(a){return this._isOpenType()?this._textFont._textWidth(a,this._textSize):this.drawingContext.measureText(a).width},d.Renderer2D.prototype.textAlign=function(a,b){if(void 0!==a)return a!==f.LEFT&&a!==f.RIGHT&&a!==f.CENTER||(this.drawingContext.textAlign=a),b!==f.TOP&&b!==f.BOTTOM&&b!==f.CENTER&&b!==f.BASELINE||(b===f.CENTER?this.drawingContext.textBaseline=f._CTX_MIDDLE:this.drawingContext.textBaseline=b),this._pInst;var c=this.drawingContext.textBaseline;return c===f._CTX_MIDDLE&&(c=f.CENTER),{horizontal:this.drawingContext.textAlign,vertical:c}},d.Renderer2D.prototype._applyTextProperties=function(){var a,b=this._pInst;return this._setProperty("_textAscent",null),this._setProperty("_textDescent",null),a=this._textFont,this._isOpenType()&&(a=this._textFont.font.familyName,this._setProperty("_textStyle",this._textFont.font.styleName)),this.drawingContext.font=(this._textStyle||"normal")+" "+(this._textSize||12)+"px "+(a||"sans-serif"),b},d.Renderer2D.prototype.push=function(){return this.drawingContext.save(),d.Renderer.prototype.push.apply(this)},d.Renderer2D.prototype.pop=function(a){this.drawingContext.restore(),this._cachedFillStyle=this.drawingContext.fillStyle,this._cachedStrokeStyle=this.drawingContext.strokeStyle,d.Renderer.prototype.pop.call(this,a)},b.exports=d.Renderer2D},{"../image/filters":40,"./canvas":19,"./constants":20,"./core":21,"./p5.Renderer":28}],30:[function(a,b,c){"use strict";var d=a("./core"),e=a("./constants");a("./p5.Graphics"),a("./p5.Renderer2D"),a("../webgl/p5.RendererGL");var f="defaultCanvas0",g="p5Canvas";d.prototype.createCanvas=function(a,b,c){d._validateParameters("createCanvas",arguments);var h,i=c||e.P2D;if(i===e.WEBGL){if(h=document.getElementById(f)){h.parentNode.removeChild(h);var j=this._renderer;this._elements=this._elements.filter(function(a){return a!==j})}h=document.createElement("canvas"),h.id=f,h.classList.add(g)}else if(this._defaultGraphicsCreated)h=this.canvas;else{h=document.createElement("canvas");for(var k=0;document.getElementById("defaultCanvas"+k);)k++;f="defaultCanvas"+k,h.id=f,h.classList.add(g)}return this._setupDone||(h.dataset.hidden=!0,h.style.visibility="hidden"),this._userNode?this._userNode.appendChild(h):document.body.appendChild(h),i===e.WEBGL?(this._setProperty("_renderer",new d.RendererGL(h,this,!0)),this._elements.push(this._renderer)):this._defaultGraphicsCreated||(this._setProperty("_renderer",new d.Renderer2D(h,this,!0)),this._defaultGraphicsCreated=!0,this._elements.push(this._renderer)),this._renderer.resize(a,b),this._renderer._applyDefaults(),this._renderer},d.prototype.resizeCanvas=function(a,b,c){if(d._validateParameters("resizeCanvas",arguments),this._renderer){var e={};for(var f in this.drawingContext){var g=this.drawingContext[f];"object"!=typeof g&&"function"!=typeof g&&(e[f]=g)}this._renderer.resize(a,b);for(var h in e)try{this.drawingContext[h]=e[h]}catch(a){}c||this.redraw()}},d.prototype.noCanvas=function(){this.canvas&&this.canvas.parentNode.removeChild(this.canvas)},d.prototype.createGraphics=function(a,b,c){return d._validateParameters("createGraphics",arguments),new d.Graphics(a,b,c,this)},d.prototype.blendMode=function(a){if(d._validateParameters("blendMode",arguments),a!==e.BLEND&&a!==e.DARKEST&&a!==e.LIGHTEST&&a!==e.DIFFERENCE&&a!==e.MULTIPLY&&a!==e.EXCLUSION&&a!==e.SCREEN&&a!==e.REPLACE&&a!==e.OVERLAY&&a!==e.HARD_LIGHT&&a!==e.SOFT_LIGHT&&a!==e.DODGE&&a!==e.BURN&&a!==e.ADD&&a!==e.NORMAL)throw new Error("Mode "+a+" not recognized.");this._renderer.blendMode(a)},b.exports=d},{"../webgl/p5.RendererGL":71,"./constants":20,"./core":21,"./p5.Graphics":27,"./p5.Renderer2D":29}],31:[function(a,b,c){"use strict";window.requestAnimationFrame=function(){return window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||window.msRequestAnimationFrame||function(a,b){window.setTimeout(a,1e3/60)}}(),window.performance=window.performance||{},window.performance.now=function(){var a=Date.now();return window.performance.now||window.performance.mozNow||window.performance.msNow||window.performance.oNow||window.performance.webkitNow||function(){return Date.now()-a}}(),function(){"undefined"==typeof Uint8ClampedArray||Uint8ClampedArray.prototype.slice||Object.defineProperty(Uint8ClampedArray.prototype,"slice",{value:Array.prototype.slice,writable:!0,configurable:!0,enumerable:!1})}()},{}],32:[function(a,b,c){"use strict";function d(a,b){for(var c=1;c<arguments.length;c++){var d=arguments[c];if(null!=d)for(var e in d)d.hasOwnProperty(e)&&(a[e]=d[e])}}var e=a("./core");e.prototype.exit=function(){throw"exit() not implemented, see remove()"},e.prototype.noLoop=function(){this._loop=!1},e.prototype.loop=function(){this._loop=!0,this._draw()},e.prototype.push=function(){this._styles.push({props:{_colorMode:this._colorMode},renderer:this._renderer.push()})},e.prototype.pop=function(){var a=this._styles.pop();a?(this._renderer.pop(a.renderer),d(this,a.props)):console.warn("pop() was called without matching push()")},e.prototype.pushStyle=function(){throw new Error("pushStyle() not used, see push()")},e.prototype.popStyle=function(){throw new Error("popStyle() not used, see pop()")},e.prototype.redraw=function(a){this.resetMatrix(),this._renderer.isP3D&&this._renderer._update();var b=parseInt(a);(isNaN(b)||b<1)&&(b=1);var c=this.setup||window.setup,d=this.draw||window.draw;if("function"==typeof d){void 0===c&&this.scale(this._pixelDensity,this._pixelDensity);for(var e=this,f=function(a){a.call(e)},g=0;g<b;g++)this._setProperty("frameCount",this.frameCount+1),this._registeredMethods.pre.forEach(f),d(),this._registeredMethods.post.forEach(f)}},e.prototype.size=function(){var a="size() is not a valid p5 function, to set the size of the ";throw a+="drawing canvas, please use createCanvas() instead"},b.exports=e},{"./core":21}],33:[function(a,b,c){"use strict";var d=a("./core");d.prototype.applyMatrix=function(a,b,c,d,e,f){return this._renderer.applyMatrix(a,b,c,d,e,f),this},d.prototype.popMatrix=function(){throw new Error("popMatrix() not used, see pop()")},d.prototype.printMatrix=function(){throw new Error("printMatrix() not implemented")},d.prototype.pushMatrix=function(){throw new Error("pushMatrix() not used, see push()")},d.prototype.resetMatrix=function(){return this._renderer.resetMatrix(),this},d.prototype.rotate=function(a,b){return d._validateParameters("rotate",arguments),this._renderer.rotate(this._toRadians(a),b),this},d.prototype.rotateX=function(a){return this._assert3d("rotateX"),d._validateParameters("rotateX",arguments),this._renderer.rotateX(this._toRadians(a)),this},d.prototype.rotateY=function(a){return this._assert3d("rotateY"),d._validateParameters("rotateY",arguments),this._renderer.rotateY(this._toRadians(a)),this},d.prototype.rotateZ=function(a){return this._assert3d("rotateZ"),d._validateParameters("rotateZ",arguments),this._renderer.rotateZ(this._toRadians(a)),this},d.prototype.scale=function(a,b,c){if(d._validateParameters("scale",arguments),a instanceof d.Vector){var e=a;a=e.x,b=e.y,c=e.z}else if(a instanceof Array){var f=a;a=f[0],b=f[1],c=f[2]||1}return isNaN(b)?b=c=a:isNaN(c)&&(c=1),this._renderer.scale.call(this._renderer,a,b,c),this},d.prototype.shearX=function(a){return d._validateParameters("shearX",arguments),this._renderer.shearX(this._toRadians(a)),this},d.prototype.shearY=function(a){return d._validateParameters("shearY",arguments),this._renderer.shearY(this._toRadians(a)),this},d.prototype.translate=function(a,b,c){
return d._validateParameters("translate",arguments),this._renderer.isP3D?this._renderer.translate(a,b,c):this._renderer.translate(a,b),this},b.exports=d},{"./core":21}],34:[function(a,b,c){"use strict";var d=a("./core"),e=a("./constants"),f=null,g=[],h=[],i=!1,j=!1,k=!1,l=!1,m=!0;d.prototype.beginContour=function(){return h=[],l=!0,this},d.prototype.beginShape=function(a){return d._validateParameters("beginShape",arguments),this._renderer.isP3D?this._renderer.beginShape.apply(this._renderer,arguments):(f=a===e.POINTS||a===e.LINES||a===e.TRIANGLES||a===e.TRIANGLE_FAN||a===e.TRIANGLE_STRIP||a===e.QUADS||a===e.QUAD_STRIP?a:null,g=[],h=[]),this},d.prototype.bezierVertex=function(a,b,c,e,f,j){if(d._validateParameters("bezierVertex",arguments),0===g.length)throw"vertex() must be used once before calling bezierVertex()";i=!0;for(var k=[],m=0;m<arguments.length;m++)k[m]=arguments[m];return k.isVert=!1,l?h.push(k):g.push(k),this},d.prototype.curveVertex=function(a,b){return d._validateParameters("curveVertex",arguments),j=!0,this.vertex(a,b),this},d.prototype.endContour=function(){var a=h[0].slice();a.isVert=h[0].isVert,a.moveTo=!1,h.push(a),m&&(g.push(g[0]),m=!1);for(var b=0;b<h.length;b++)g.push(h[b]);return this},d.prototype.endShape=function(a){if(d._validateParameters("endShape",arguments),this._renderer.isP3D)this._renderer.endShape(a,j,i,k,l,f);else{if(0===g.length)return this;if(!this._renderer._doStroke&&!this._renderer._doFill)return this;var b=a===e.CLOSE;b&&!l&&g.push(g[0]),this._renderer.endShape(a,g,j,i,k,l,f),j=!1,i=!1,k=!1,l=!1,m=!0,b&&g.pop()}return this},d.prototype.quadraticVertex=function(a,b,c,f){if(d._validateParameters("quadraticVertex",arguments),this._contourInited){var i={};return i.x=a,i.y=b,i.x3=c,i.y3=f,i.type=e.QUADRATIC,this._contourVertices.push(i),this}if(!(g.length>0))throw"vertex() must be used once before calling quadraticVertex()";k=!0;for(var j=[],m=0;m<arguments.length;m++)j[m]=arguments[m];return j.isVert=!1,l?h.push(j):g.push(j),this},d.prototype.vertex=function(a,b,c,d,e){if(this._renderer.isP3D)this._renderer.vertex.apply(this._renderer,arguments);else{var f=[];f.isVert=!0,f[0]=a,f[1]=b,f[2]=0,f[3]=0,f[4]=0,f[5]=this._renderer._getFill(),f[6]=this._renderer._getStroke(),c&&(f.moveTo=c),l?(0===h.length&&(f.moveTo=!0),h.push(f)):g.push(f)}return this},b.exports=d},{"./constants":20,"./core":21}],35:[function(a,b,c){"use strict";var d=a("../core/core");d.prototype.createStringDict=function(a,b){return d._validateParameters("createStringDict",arguments),new d.StringDict(a,b)},d.prototype.createNumberDict=function(a,b){return d._validateParameters("createNumberDict",arguments),new d.NumberDict(a,b)},d.TypedDict=function(a,b){return a instanceof Object?this.data=a:(this.data={},this.data[a]=b),this},d.TypedDict.prototype.size=function(){return Object.keys(this.data).length},d.TypedDict.prototype.hasKey=function(a){return this.data.hasOwnProperty(a)},d.TypedDict.prototype.get=function(a){if(this.data.hasOwnProperty(a))return this.data[a];console.log(a+" does not exist in this Dictionary")},d.TypedDict.prototype.set=function(a,b){this._validate(b)?this.data[a]=b:console.log("Those values dont work for this dictionary type.")},d.TypedDict.prototype._addObj=function(a){for(var b in a)this.set(b,a[b])},d.TypedDict.prototype.create=function(a,b){a instanceof Object&&void 0===b?this._addObj(a):void 0!==a?this.set(a,b):console.log("In order to create a new Dictionary entry you must pass an object or a key, value pair")},d.TypedDict.prototype.clear=function(){this.data={}},d.TypedDict.prototype.remove=function(a){if(!this.data.hasOwnProperty(a))throw a+" does not exist in this Dictionary";delete this.data[a]},d.TypedDict.prototype.print=function(){for(var a in this.data)console.log("key:"+a+" value:"+this.data[a])},d.TypedDict.prototype.saveTable=function(a){var b="";for(var c in this.data)b+=c+","+this.data[c]+"\n";var e=new Blob([b],{type:"text/csv"});d.prototype.downloadFile(e,a||"mycsv","csv")},d.TypedDict.prototype.saveJSON=function(a,b){d.prototype.saveJSON(this.data,a,b)},d.TypedDict.prototype._validate=function(a){return!0},d.StringDict=function(){d.TypedDict.apply(this,arguments)},d.StringDict.prototype=Object.create(d.TypedDict.prototype),d.StringDict.prototype._validate=function(a){return"string"==typeof a},d.NumberDict=function(){d.TypedDict.apply(this,arguments)},d.NumberDict.prototype=Object.create(d.TypedDict.prototype),d.NumberDict.prototype._validate=function(a){return"number"==typeof a},d.NumberDict.prototype.add=function(a,b){this.data.hasOwnProperty(a)?this.data[a]+=b:console.log("The key - "+a+" does not exist in this dictionary.")},d.NumberDict.prototype.sub=function(a,b){this.add(a,-b)},d.NumberDict.prototype.mult=function(a,b){this.data.hasOwnProperty(a)?this.data[a]*=b:console.log("The key - "+a+" does not exist in this dictionary.")},d.NumberDict.prototype.div=function(a,b){this.data.hasOwnProperty(a)?this.data[a]/=b:console.log("The key - "+a+" does not exist in this dictionary.")},d.NumberDict.prototype._valueTest=function(a){if(0===Object.keys(this.data).length)throw"Unable to search for a minimum or maximum value on an empty NumberDict";if(1===Object.keys(this.data).length)return this.data[Object.keys(this.data)[0]];var b=this.data[Object.keys(this.data)[0]];for(var c in this.data)this.data[c]*a<b*a&&(b=this.data[c]);return b},d.NumberDict.prototype.minValue=function(){return this._valueTest(1)},d.NumberDict.prototype.maxValue=function(){return this._valueTest(-1)},d.NumberDict.prototype._keyTest=function(a){if(0===Object.keys(this.data).length)throw"Unable to use minValue on an empty NumberDict";if(1===Object.keys(this.data).length)return Object.keys(this.data)[0];for(var b=Object.keys(this.data)[0],c=1;c<Object.keys(this.data).length;c++)Object.keys(this.data)[c]*a<b*a&&(b=Object.keys(this.data)[c]);return b},d.NumberDict.prototype.minKey=function(){return this._keyTest(1)},d.NumberDict.prototype.maxKey=function(){return this._keyTest(-1)},b.exports=d.TypedDict},{"../core/core":21}],36:[function(a,b,c){"use strict";var d=a("../core/core");d.prototype.deviceOrientation=void 0,d.prototype.accelerationX=0,d.prototype.accelerationY=0,d.prototype.accelerationZ=0,d.prototype.pAccelerationX=0,d.prototype.pAccelerationY=0,d.prototype.pAccelerationZ=0,d.prototype._updatePAccelerations=function(){this._setProperty("pAccelerationX",this.accelerationX),this._setProperty("pAccelerationY",this.accelerationY),this._setProperty("pAccelerationZ",this.accelerationZ)},d.prototype.rotationX=0,d.prototype.rotationY=0,d.prototype.rotationZ=0,d.prototype.pRotationX=0,d.prototype.pRotationY=0,d.prototype.pRotationZ=0;var e,f,g,h=0,i=0,j=0,k="clockwise",l="clockwise",m="clockwise";d.prototype._updatePRotations=function(){this._setProperty("pRotationX",this.rotationX),this._setProperty("pRotationY",this.rotationY),this._setProperty("pRotationZ",this.rotationZ)},d.prototype.turnAxis=void 0;var n=.5,o=30;d.prototype.setMoveThreshold=function(a){d._validateParameters("setMoveThreshold",arguments),n=a},d.prototype.setShakeThreshold=function(a){d._validateParameters("setShakeThreshold",arguments),o=a},d.prototype._ondeviceorientation=function(a){this._updatePRotations(),this._setProperty("rotationX",a.beta),this._setProperty("rotationY",a.gamma),this._setProperty("rotationZ",a.alpha),this._handleMotion()},d.prototype._ondevicemotion=function(a){this._updatePAccelerations(),this._setProperty("accelerationX",2*a.acceleration.x),this._setProperty("accelerationY",2*a.acceleration.y),this._setProperty("accelerationZ",2*a.acceleration.z),this._handleMotion()},d.prototype._handleMotion=function(){90===window.orientation||-90===window.orientation?this._setProperty("deviceOrientation","landscape"):0===window.orientation?this._setProperty("deviceOrientation","portrait"):void 0===window.orientation&&this._setProperty("deviceOrientation","undefined");var a=this.deviceMoved||window.deviceMoved;"function"==typeof a&&(Math.abs(this.accelerationX-this.pAccelerationX)>n||Math.abs(this.accelerationY-this.pAccelerationY)>n||Math.abs(this.accelerationZ-this.pAccelerationZ)>n)&&a();var b=this.deviceTurned||window.deviceTurned;if("function"==typeof b){var c=this.rotationX+180,d=this.pRotationX+180,p=h+180;c-d>0&&c-d<270||c-d<-270?k="clockwise":(c-d<0||c-d>270)&&(k="counter-clockwise"),k!==e&&(p=c),Math.abs(c-p)>90&&Math.abs(c-p)<270&&(p=c,this._setProperty("turnAxis","X"),b()),e=k,h=p-180;var q=this.rotationY+180,r=this.pRotationY+180,s=i+180;q-r>0&&q-r<270||q-r<-270?l="clockwise":(q-r<0||q-this.pRotationY>270)&&(l="counter-clockwise"),l!==f&&(s=q),Math.abs(q-s)>90&&Math.abs(q-s)<270&&(s=q,this._setProperty("turnAxis","Y"),b()),f=l,i=s-180,this.rotationZ-this.pRotationZ>0&&this.rotationZ-this.pRotationZ<270||this.rotationZ-this.pRotationZ<-270?m="clockwise":(this.rotationZ-this.pRotationZ<0||this.rotationZ-this.pRotationZ>270)&&(m="counter-clockwise"),m!==g&&(j=this.rotationZ),Math.abs(this.rotationZ-j)>90&&Math.abs(this.rotationZ-j)<270&&(j=this.rotationZ,this._setProperty("turnAxis","Z"),b()),g=m,this._setProperty("turnAxis",void 0)}var t=this.deviceShaken||window.deviceShaken;if("function"==typeof t){var u,v;null!==this.pAccelerationX&&(u=Math.abs(this.accelerationX-this.pAccelerationX),v=Math.abs(this.accelerationY-this.pAccelerationY)),u+v>o&&t()}},b.exports=d},{"../core/core":21}],37:[function(a,b,c){"use strict";function d(){for(var a in f)if(f.hasOwnProperty(a)&&!0===f[a])return!0;return!1}var e=a("../core/core"),f={};e.prototype.isKeyPressed=!1,e.prototype.keyIsPressed=!1,e.prototype.key="",e.prototype.keyCode=0,e.prototype._onkeydown=function(a){if(!f[a.which]){this._setProperty("isKeyPressed",!0),this._setProperty("keyIsPressed",!0),this._setProperty("keyCode",a.which),f[a.which]=!0;var b=String.fromCharCode(a.which);b||(b=a.which),this._setProperty("key",b);var c=this.keyPressed||window.keyPressed;if("function"==typeof c&&!a.charCode){!1===c(a)&&a.preventDefault()}}},e.prototype._onkeyup=function(a){var b=this.keyReleased||window.keyReleased;f[a.which]=!1,d()||(this._setProperty("isKeyPressed",!1),this._setProperty("keyIsPressed",!1)),this._setProperty("_lastKeyCodeTyped",null);var c=String.fromCharCode(a.which);if(c||(c=a.which),this._setProperty("key",c),this._setProperty("keyCode",a.which),"function"==typeof b){!1===b(a)&&a.preventDefault()}},e.prototype._onkeypress=function(a){if(a.which!==this._lastKeyCodeTyped){this._setProperty("keyCode",a.which),this._setProperty("_lastKeyCodeTyped",a.which),this._setProperty("key",String.fromCharCode(a.which));var b=this.keyTyped||window.keyTyped;if("function"==typeof b){!1===b(a)&&a.preventDefault()}}},e.prototype._onblur=function(a){f={}},e.prototype.keyIsDown=function(a){return e._validateParameters("keyIsDown",arguments),f[a]},b.exports=e},{"../core/core":21}],38:[function(a,b,c){"use strict";function d(a,b,c,d){d&&!d.clientX&&(d.touches?d=d.touches[0]:d.changedTouches&&(d=d.changedTouches[0]));var e=a.getBoundingClientRect(),f=a.scrollWidth/b,g=a.scrollHeight/c;return{x:(d.clientX-e.left)/f,y:(d.clientY-e.top)/g,winX:d.clientX,winY:d.clientY,id:d.identifier}}var e=a("../core/core"),f=a("../core/constants");e.prototype._hasMouseInteracted=!1,e.prototype.mouseX=0,e.prototype.mouseY=0,e.prototype.pmouseX=0,e.prototype.pmouseY=0,e.prototype.winMouseX=0,e.prototype.winMouseY=0,e.prototype.pwinMouseX=0,e.prototype.pwinMouseY=0,e.prototype.mouseButton=0,e.prototype.mouseIsPressed=!1,e.prototype._updateNextMouseCoords=function(a){if(null!==this._curElement&&(!a.touches||a.touches.length>0)){var b=d(this._curElement.elt,this.width,this.height,a);this._setProperty("mouseX",b.x),this._setProperty("mouseY",b.y),this._setProperty("winMouseX",b.winX),this._setProperty("winMouseY",b.winY)}this._hasMouseInteracted||(this._updateMouseCoords(),this._setProperty("_hasMouseInteracted",!0))},e.prototype._updateMouseCoords=function(){this._setProperty("pmouseX",this.mouseX),this._setProperty("pmouseY",this.mouseY),this._setProperty("pwinMouseX",this.winMouseX),this._setProperty("pwinMouseY",this.winMouseY)},e.prototype._setMouseButton=function(a){1===a.button?this._setProperty("mouseButton",f.CENTER):2===a.button?this._setProperty("mouseButton",f.RIGHT):this._setProperty("mouseButton",f.LEFT)},e.prototype._onmousemove=function(a){var b=this._isGlobal?window:this;this._updateNextMouseCoords(a),this.mouseIsPressed?"function"==typeof b.mouseDragged?!1===b.mouseDragged(a)&&a.preventDefault():"function"==typeof b.touchMoved&&!1===b.touchMoved(a)&&a.preventDefault():"function"==typeof b.mouseMoved&&!1===b.mouseMoved(a)&&a.preventDefault()},e.prototype._onmousedown=function(a){var b=this._isGlobal?window:this;this._setProperty("mouseIsPressed",!0),this._setMouseButton(a),this._updateNextMouseCoords(a),"function"==typeof b.mousePressed?!1===b.mousePressed(a)&&a.preventDefault():"function"==typeof b.touchStarted&&!1===b.touchStarted(a)&&a.preventDefault()},e.prototype._onmouseup=function(a){var b=this._isGlobal?window:this;this._setProperty("mouseIsPressed",!1),"function"==typeof b.mouseReleased?!1===b.mouseReleased(a)&&a.preventDefault():"function"==typeof b.touchEnded&&!1===b.touchEnded(a)&&a.preventDefault()},e.prototype._ondragend=e.prototype._onmouseup,e.prototype._ondragover=e.prototype._onmousemove,e.prototype._onclick=function(a){var b=this._isGlobal?window:this;if("function"==typeof b.mouseClicked){!1===b.mouseClicked(a)&&a.preventDefault()}},e.prototype._ondblclick=function(a){var b=this._isGlobal?window:this;if("function"==typeof b.doubleClicked){!1===b.doubleClicked(a)&&a.preventDefault()}},e.prototype._onwheel=function(a){var b=this._isGlobal?window:this;if("function"==typeof b.mouseWheel){a.delta=a.deltaY;!1===b.mouseWheel(a)&&a.preventDefault()}},b.exports=e},{"../core/constants":20,"../core/core":21}],39:[function(a,b,c){"use strict";function d(a,b,c,d,e){e=e||0;var f=a.getBoundingClientRect(),g=a.scrollWidth/b,h=a.scrollHeight/c,i=d.touches[e]||d.changedTouches[e];return{x:(i.clientX-f.left)/g,y:(i.clientY-f.top)/h,winX:i.clientX,winY:i.clientY,id:i.identifier}}var e=a("../core/core");e.prototype.touches=[],e.prototype._updateTouchCoords=function(a){if(null!==this._curElement){for(var b=[],c=0;c<a.touches.length;c++)b[c]=d(this._curElement.elt,this.width,this.height,a,c);this._setProperty("touches",b)}},e.prototype._ontouchstart=function(a){var b=this._isGlobal?window:this;this._setProperty("mouseIsPressed",!0),this._updateTouchCoords(a),this._updateNextMouseCoords(a),"function"==typeof b.touchStarted?!1===b.touchStarted(a)&&a.preventDefault():"function"==typeof b.mousePressed&&!1===b.mousePressed(a)&&a.preventDefault()},e.prototype._ontouchmove=function(a){var b=this._isGlobal?window:this;this._updateTouchCoords(a),this._updateNextMouseCoords(a),"function"==typeof b.touchMoved?!1===b.touchMoved(a)&&a.preventDefault():"function"==typeof b.mouseDragged&&!1===b.mouseDragged(a)&&a.preventDefault()},e.prototype._ontouchend=function(a){this._setProperty("mouseIsPressed",!1),this._updateTouchCoords(a),this._updateNextMouseCoords(a);var b=this._isGlobal?window:this;"function"==typeof b.touchEnded?!1===b.touchEnded(a)&&a.preventDefault():"function"==typeof b.mouseReleased&&!1===b.mouseReleased(a)&&a.preventDefault()},b.exports=e},{"../core/core":21}],40:[function(a,b,c){"use strict";function d(a){var b=3.5*a|0;if(b=b<1?1:b<248?b:248,g!==b){g=b,h=1+g<<1,i=new Int32Array(h),j=new Array(h);for(var c=0;c<h;c++)j[c]=new Int32Array(256);for(var d,e,f,k,l=1,m=b-1;l<b;l++){i[b+l]=i[m]=e=m*m,f=j[b+l],k=j[m--];for(var n=0;n<256;n++)f[n]=k[n]=e*n}d=i[b]=b*b,f=j[b];for(var o=0;o<256;o++)f[o]=d*o}}function e(a,b){for(var c=f._toPixels(a),e=a.width,k=a.height,l=e*k,m=new Int32Array(l),n=0;n<l;n++)m[n]=f._getARGB(c,n);var o,p,q,r,s,t,u,v,w,x,y=new Int32Array(l),z=new Int32Array(l),A=new Int32Array(l),B=new Int32Array(l),C=0;d(b);var D,E,F,G;for(E=0;E<k;E++){for(D=0;D<e;D++){if(r=q=p=s=o=0,(t=D-g)<0)x=-t,t=0;else{if(t>=e)break;x=0}for(F=x;F<h&&!(t>=e);F++){var H=m[t+C];G=j[F],s+=G[(-16777216&H)>>>24],p+=G[(16711680&H)>>16],q+=G[(65280&H)>>8],r+=G[255&H],o+=i[F],t++}u=C+D,y[u]=s/o,z[u]=p/o,A[u]=q/o,B[u]=r/o}C+=e}for(C=0,v=-g,w=v*e,E=0;E<k;E++){for(D=0;D<e;D++){if(r=q=p=s=o=0,v<0)x=u=-v,t=D;else{if(v>=k)break;x=0,u=v,t=D+w}for(F=x;F<h&&!(u>=k);F++)G=j[F],s+=G[y[t]],p+=G[z[t]],q+=G[A[t]],r+=G[B[t]],o+=i[F],u++,t+=e;m[D+C]=s/o<<24|p/o<<16|q/o<<8|r/o}C+=e,w+=e,v++}f._setPixels(c,m)}var f={};f._toPixels=function(a){return a instanceof ImageData?a.data:a.getContext("2d").getImageData(0,0,a.width,a.height).data},f._getARGB=function(a,b){var c=4*b;return a[c+3]<<24&4278190080|a[c]<<16&16711680|a[c+1]<<8&65280|255&a[c+2]},f._setPixels=function(a,b){for(var c=0,d=0,e=a.length;d<e;d++)c=4*d,a[c+0]=(16711680&b[d])>>>16,a[c+1]=(65280&b[d])>>>8,a[c+2]=255&b[d],a[c+3]=(4278190080&b[d])>>>24},f._toImageData=function(a){return a instanceof ImageData?a:a.getContext("2d").getImageData(0,0,a.width,a.height)},f._createImageData=function(a,b){return f._tmpCanvas=document.createElement("canvas"),f._tmpCtx=f._tmpCanvas.getContext("2d"),this._tmpCtx.createImageData(a,b)},f.apply=function(a,b,c){var d=a.getContext("2d"),e=d.getImageData(0,0,a.width,a.height),f=b(e,c);f instanceof ImageData?d.putImageData(f,0,0,0,0,a.width,a.height):d.putImageData(e,0,0,0,0,a.width,a.height)},f.threshold=function(a,b){var c=f._toPixels(a);void 0===b&&(b=.5);for(var d=Math.floor(255*b),e=0;e<c.length;e+=4){var g,h=c[e],i=c[e+1],j=c[e+2],k=.2126*h+.7152*i+.0722*j;g=k>=d?255:0,c[e]=c[e+1]=c[e+2]=g}},f.gray=function(a){for(var b=f._toPixels(a),c=0;c<b.length;c+=4){var d=b[c],e=b[c+1],g=b[c+2],h=.2126*d+.7152*e+.0722*g;b[c]=b[c+1]=b[c+2]=h}},f.opaque=function(a){for(var b=f._toPixels(a),c=0;c<b.length;c+=4)b[c+3]=255;return b},f.invert=function(a){for(var b=f._toPixels(a),c=0;c<b.length;c+=4)b[c]=255-b[c],b[c+1]=255-b[c+1],b[c+2]=255-b[c+2]},f.posterize=function(a,b){var c=f._toPixels(a);if(b<2||b>255)throw new Error("Level must be greater than 2 and less than 255 for posterize");for(var d=b-1,e=0;e<c.length;e+=4){var g=c[e],h=c[e+1],i=c[e+2];c[e]=255*(g*b>>8)/d,c[e+1]=255*(h*b>>8)/d,c[e+2]=255*(i*b>>8)/d}},f.dilate=function(a){for(var b,c,d,e,g,h,i,j,k,l,m,n,o,p,q,r,s,t=f._toPixels(a),u=0,v=t.length?t.length/4:0,w=new 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Int32Array(v);u<v;)for(b=u,c=u+a.width;u<c;)d=e=f._getARGB(t,u),i=u-1,h=u+1,j=u-a.width,k=u+a.width,i<b&&(i=u),h>=c&&(h=u),j<0&&(j=0),k>=v&&(k=u),n=f._getARGB(t,j),m=f._getARGB(t,i),o=f._getARGB(t,k),l=f._getARGB(t,h),g=77*(d>>16&255)+151*(d>>8&255)+28*(255&d),q=77*(m>>16&255)+151*(m>>8&255)+28*(255&m),p=77*(l>>16&255)+151*(l>>8&255)+28*(255&l),r=77*(n>>16&255)+151*(n>>8&255)+28*(255&n),s=77*(o>>16&255)+151*(o>>8&255)+28*(255&o),q<g&&(e=m,g=q),p<g&&(e=l,g=p),r<g&&(e=n,g=r),s<g&&(e=o,g=s),w[u++]=e;f._setPixels(t,w)};var g,h,i,j;f.blur=function(a,b){e(a,b)},b.exports=f},{}],41:[function(a,b,c){"use strict";var d=a("../core/core"),e=[];d.prototype.createImage=function(a,b){return d._validateParameters("createImage",arguments),new d.Image(a,b)},d.prototype.saveCanvas=function(){d._validateParameters("saveCanvas",arguments);var a,b,c,e=[].slice.call(arguments);arguments[0]instanceof HTMLCanvasElement?(a=arguments[0],e.shift()):arguments[0]instanceof d.Element?(a=arguments[0].elt,e.shift()):a=this._curElement&&this._curElement.elt,e.length>=1&&(b=e[0]),e.length>=2&&(c=e[1]),c=c||d.prototype._checkFileExtension(b,c)[1]||"png";var f;switch(c){default:f="image/png";break;case"jpeg":case"jpg":f="image/jpeg"}a.toBlob(function(a){d.prototype.downloadFile(a,b,c)},f)},d.prototype.saveFrames=function(a,b,c,f,g){d._validateParameters("saveFrames",arguments);var h=c||3;h=d.prototype.constrain(h,0,15),h*=1e3;var i=f||15;i=d.prototype.constrain(i,0,22);var j=0,k=d.prototype._makeFrame,l=this._curElement.elt,m=setInterval(function(){k(a+j,b,l),j++},1e3/i);setTimeout(function(){if(clearInterval(m),g)g(e);else for(var a=0;a<e.length;a++){var b=e[a];d.prototype.downloadFile(b.imageData,b.filename,b.ext)}e=[]},h+.01)},d.prototype._makeFrame=function(a,b,c){var d;d=this?this._curElement.elt:c;var f;if(b)switch(b.toLowerCase()){case"png":f="image/png";break;case"jpeg":case"jpg":f="image/jpeg";break;default:f="image/png"}else b="png",f="image/png";var g=d.toDataURL(f);g=g.replace(f,"image/octet-stream");var h={};h.imageData=g,h.filename=a,h.ext=b,e.push(h)},b.exports=d},{"../core/core":21}],42:[function(a,b,c){"use strict";function d(a,b){return a>0&&a<b?a:b}var e=a("../core/core"),f=a("./filters"),g=a("../core/canvas"),h=a("../core/constants");a("../core/error_helpers"),e.prototype.loadImage=function(a,b,c){e._validateParameters("loadImage",arguments);var d=new Image,f=new e.Image(1,1,this),g=this;return d.onload=function(){f.width=f.canvas.width=d.width,f.height=f.canvas.height=d.height,f.drawingContext.drawImage(d,0,0),f.modified=!0,"function"==typeof b&&b(f),g._decrementPreload()},d.onerror=function(a){e._friendlyFileLoadError(0,d.src),"function"==typeof c&&c(a)},0!==a.indexOf("data:image/")&&(d.crossOrigin="Anonymous"),d.src=a,f},e.prototype.image=function(a,b,c,f,h,i,j,k,l){e._validateParameters("image",arguments);var m=a.width,n=a.height;a.elt&&a.elt.videoWidth&&!a.canvas&&(m=a.elt.videoWidth,n=a.elt.videoHeight);var o=b,p=c,q=f||m,r=h||n,s=i||0,t=j||0,u=k||m,v=l||n;u=d(u,m),v=d(v,n);var w=1;a.elt&&!a.canvas&&a.elt.style.width&&(w=a.elt.videoWidth&&!f?a.elt.videoWidth:a.elt.width,w/=parseInt(a.elt.style.width,10)),s*=w,t*=w,v*=w,u*=w;var x=g.modeAdjust(o,p,q,r,this._renderer._imageMode);this._renderer.image(a,s,t,u,v,x.x,x.y,x.w,x.h)},e.prototype.tint=function(){e._validateParameters("tint",arguments);var a=this.color.apply(this,arguments);this._renderer._tint=a.levels},e.prototype.noTint=function(){this._renderer._tint=null},e.prototype._getTintedImageCanvas=function(a){if(!a.canvas)return a;var b=f._toPixels(a.canvas),c=document.createElement("canvas");c.width=a.canvas.width,c.height=a.canvas.height;for(var d=c.getContext("2d"),e=d.createImageData(a.canvas.width,a.canvas.height),g=e.data,h=0;h<b.length;h+=4){var i=b[h],j=b[h+1],k=b[h+2],l=b[h+3];g[h]=i*this._renderer._tint[0]/255,g[h+1]=j*this._renderer._tint[1]/255,g[h+2]=k*this._renderer._tint[2]/255,g[h+3]=l*this._renderer._tint[3]/255}return d.putImageData(e,0,0),c},e.prototype.imageMode=function(a){e._validateParameters("imageMode",arguments),a!==h.CORNER&&a!==h.CORNERS&&a!==h.CENTER||(this._renderer._imageMode=a)},b.exports=e},{"../core/canvas":19,"../core/constants":20,"../core/core":21,"../core/error_helpers":24,"./filters":40}],43:[function(a,b,c){"use strict";var d=a("../core/core"),e=a("./filters");d.Image=function(a,b){this.width=a,this.height=b,this.canvas=document.createElement("canvas"),this.canvas.width=this.width,this.canvas.height=this.height,this.drawingContext=this.canvas.getContext("2d"),this._pixelDensity=1,this._modified=!1,this.pixels=[]},d.Image.prototype._setProperty=function(a,b){this[a]=b,this.setModified(!0)},d.Image.prototype.loadPixels=function(){d.Renderer2D.prototype.loadPixels.call(this),this.setModified(!0)},d.Image.prototype.updatePixels=function(a,b,c,e){d.Renderer2D.prototype.updatePixels.call(this,a,b,c,e),this.setModified(!0)},d.Image.prototype.get=function(a,b,c,e){return d.Renderer2D.prototype.get.call(this,a,b,c,e)},d.Image.prototype.set=function(a,b,c){d.Renderer2D.prototype.set.call(this,a,b,c),this.setModified(!0)},d.Image.prototype.resize=function(a,b){0===a&&0===b?(a=this.canvas.width,b=this.canvas.height):0===a?a=this.canvas.width*b/this.canvas.height:0===b&&(b=this.canvas.height*a/this.canvas.width),a=Math.floor(a),b=Math.floor(b);var c=document.createElement("canvas");c.width=a,c.height=b,c.getContext("2d").drawImage(this.canvas,0,0,this.canvas.width,this.canvas.height,0,0,c.width,c.height),this.canvas.width=this.width=a,this.canvas.height=this.height=b,this.drawingContext.drawImage(c,0,0,a,b,0,0,a,b),this.pixels.length>0&&this.loadPixels(),this.setModified(!0)},d.Image.prototype.copy=function(){var a,b,c,e,f,g,h,i,j;if(9===arguments.length)a=arguments[0],b=arguments[1],c=arguments[2],e=arguments[3],f=arguments[4],g=arguments[5],h=arguments[6],i=arguments[7],j=arguments[8];else{if(8!==arguments.length)throw new Error("Signature not 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f=a[b];f.length;)h[b]="A",e&&(i[b]="A"),a.splice(b++,0,["C"].concat(f.splice(0,6)));a.splice(b,1),c=Math.max(d.length,e&&e.length||0)}},l=function(a,b,f,g,h){a&&b&&"M"===a[h][0]&&"M"!==b[h][0]&&(b.splice(h,0,["M",g.x,g.y]),f.bx=0,f.by=0,f.x=a[h][1],f.y=a[h][2],c=Math.max(d.length,e&&e.length||0))},m="",n="";c=Math.max(d.length,e&&e.length||0);for(var p=0;p<c;p++){d[p]&&(m=d[p][0]),"C"!==m&&(h[p]=m,p&&(n=h[p-1])),d[p]=j(d[p],f,n),"A"!==h[p]&&"C"===m&&(h[p]="C"),k(d,p),e&&(e[p]&&(m=e[p][0]),"C"!==m&&(i[p]=m,p&&(n=i[p-1])),e[p]=j(e[p],g,n),"A"!==i[p]&&"C"===m&&(i[p]="C"),k(e,p)),l(d,e,f,g,p),l(e,d,g,f,p);var r=d[p],u=e&&e[p],v=r.length,w=e&&u.length;f.x=r[v-2],f.y=r[v-1],f.bx=parseFloat(r[v-4])||f.x,f.by=parseFloat(r[v-3])||f.y,g.bx=e&&(parseFloat(u[w-4])||g.x),g.by=e&&(parseFloat(u[w-3])||g.y),g.x=e&&u[w-2],g.y=e&&u[w-1]}return e?[d,e]:d}function q(a,b,c,d,e,f,g,h,i,j){var k,l,m,n,o,p=Math.PI,r=120*p/180,s=p/180*(+e||0),t=[],u=function(a,b,c){return{x:a*Math.cos(c)-b*Math.sin(c),y:a*Math.sin(c)+b*Math.cos(c)}};if(j)k=j[0],l=j[1],m=j[2],n=j[3];else{o=u(a,b,-s),a=o.x,b=o.y,o=u(h,i,-s),h=o.x,i=o.y;var v=(a-h)/2,w=(b-i)/2,x=v*v/(c*c)+w*w/(d*d);x>1&&(x=Math.sqrt(x),c*=x,d*=x);var y=c*c,z=d*d,A=(f===g?-1:1)*Math.sqrt(Math.abs((y*z-y*w*w-z*v*v)/(y*w*w+z*v*v)));m=A*c*w/d+(a+h)/2,n=A*-d*v/c+(b+i)/2,k=Math.asin(((b-n)/d).toFixed(9)),l=Math.asin(((i-n)/d).toFixed(9)),k=a<m?p-k:k,l=h<m?p-l:l,k<0&&(k=2*p+k),l<0&&(l=2*p+l),g&&k>l&&(k-=2*p),!g&&l>k&&(l-=2*p)}var B=l-k;if(Math.abs(B)>r){var C=l,D=h,E=i;l=k+r*(g&&l>k?1:-1),h=m+c*Math.cos(l),i=n+d*Math.sin(l),t=q(h,i,c,d,e,0,g,D,E,[l,C,m,n])}B=l-k;var F=Math.cos(k),G=Math.sin(k),H=Math.cos(l),I=Math.sin(l),J=Math.tan(B/4),K=4/3*c*J,L=4/3*d*J,M=[a,b],N=[a+K*G,b-L*F],O=[h+K*I,i-L*H],P=[h,i];if(N[0]=2*M[0]-N[0],N[1]=2*M[1]-N[1],j)return[N,O,P].concat(t);t=[N,O,P].concat(t).join().split(",");for(var Q=[],R=0,S=t.length;R<S;R++)Q[R]=R%2?u(t[R-1],t[R],s).y:u(t[R],t[R+1],s).x;return Q}function r(a,b){for(var c=[],d=0,e=a.length;e-2*!b>d;d+=2){var f=[{x:+a[d-2],y:+a[d-1]},{x:+a[d],y:+a[d+1]},{x:+a[d+2],y:+a[d+3]},{x:+a[d+4],y:+a[d+5]}];b?d?e-4===d?f[3]={x:+a[0],y:+a[1]}:e-2===d&&(f[2]={x:+a[0],y:+a[1]},f[3]={x:+a[2],y:+a[3]}):f[0]={x:+a[e-2],y:+a[e-1]}:e-4===d?f[3]=f[2]:d||(f[0]={x:+a[d],y:+a[d+1]}),c.push(["C",(-f[0].x+6*f[1].x+f[2].x)/6,(-f[0].y+6*f[1].y+f[2].y)/6,(f[1].x+6*f[2].x-f[3].x)/6,(f[1].y+6*f[2].y-f[3].y)/6,f[2].x,f[2].y])}return c}function s(a,b,c,d){return[a,b,c,d,c,d]}function t(a,b,c,d,e,f){var g=1/3,h=2/3;return[g*a+h*c,g*b+h*d,g*e+h*c,g*f+h*d,e,f]}function u(a,b,c,d,e,f,g,h,i){null==i&&(i=1),i=i>1?1:i<0?0:i;for(var j=i/2,k=12,l=[-.1252,.1252,-.3678,.3678,-.5873,.5873,-.7699,.7699,-.9041,.9041,-.9816,.9816],m=0,n=[.2491,.2491,.2335,.2335,.2032,.2032,.1601,.1601,.1069,.1069,.0472,.0472],o=0;o<k;o++){var p=j*l[o]+j,q=w(p,a,c,e,g),r=w(p,b,d,f,h),s=q*q+r*r;m+=n[o]*Math.sqrt(s)}return j*m}function v(a,b,c,d,e,f,g,h,i){if(!(i<0||u(a,b,c,d,e,f,g,h)<i)){var j,k=1,l=k/2,m=k-l,n=.01;for(j=u(a,b,c,d,e,f,g,h,m);Math.abs(j-i)>n;)l/=2,m+=(j<i?1:-1)*l,j=u(a,b,c,d,e,f,g,h,m);return m}}function w(a,b,c,d,e){return a*(a*(-3*b+9*c-9*d+3*e)+6*b-12*c+6*d)-3*b+3*c}function x(){for(var a="",b=arguments.length-1;b>=0;--b){var c=arguments[b];a+=c===Object(c)?JSON.stringify(c):c}return a}var y=a("../core/core"),z=a("../core/constants");y.Font=function(a){this.parent=a,this.cache={},this.font=void 0},y.Font.prototype.list=function(){throw"not yet implemented"},y.Font.prototype.textBounds=function(a,b,c,d,e){b=void 0!==b?b:0,c=void 0!==c?c:0,d=d||this.parent._renderer._textSize
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p=d(n[o],g),q=0;q<p.length;q++)p[q].x+=i,j.push(p[q]);i+=k[l].advanceWidth*this._scale(e)}return j},y.Font.prototype._getGlyphs=function(a){return this.font.stringToGlyphs(a)},y.Font.prototype._getPath=function(a,b,c,d){var e=d&&d.renderer&&d.renderer._pInst||this.parent,f=e._renderer.drawingContext,g=this._handleAlignment(e,f,a,b,c);return this.font.getPath(a,g.x,g.y,e._renderer._textSize,d)},y.Font.prototype._getPathData=function(a,b,c,d){var e=3;return"string"==typeof a&&arguments.length>2?a=this._getPath(a,b,c,d):"object"==typeof b&&(d=b),d&&"number"==typeof d.decimals&&(e=d.decimals),a.toPathData(e)},y.Font.prototype._getSVG=function(a,b,c,d){var e=3;return"string"==typeof a&&arguments.length>2?a=this._getPath(a,b,c,d):"object"==typeof b&&(d=b),d&&("number"==typeof d.decimals&&(e=d.decimals),"number"==typeof d.strokeWidth&&(a.strokeWidth=d.strokeWidth),void 0!==d.fill&&(a.fill=d.fill),void 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1/this.font.unitsPerEm*(a||this.parent._renderer._textSize)},y.Font.prototype._handleAlignment=function(a,b,c,d,e,f){var g=a._renderer._textSize,h=this._textAscent(g),i=this._textDescent(g);return f=void 0!==f?f:this._textWidth(c,g),b.textAlign===z.CENTER?d-=f/2:b.textAlign===z.RIGHT&&(d-=f),b.textBaseline===z.TOP?e+=h:b.textBaseline===z._CTX_MIDDLE?e+=h/2:b.textBaseline===z.BOTTOM&&(e-=i),{x:d,y:e}},b.exports=y},{"../core/constants":20,"../core/core":21}],58:[function(a,b,c){"use strict";var d=a("../core/core");d.prototype.append=function(a,b){return a.push(b),a},d.prototype.arrayCopy=function(a,b,c,d,e){var f,g;void 0!==e?(g=Math.min(e,a.length),f=d,a=a.slice(b,g+b)):(void 0!==c?(g=c,g=Math.min(g,a.length)):g=a.length,f=0,c=b,a=a.slice(0,g)),Array.prototype.splice.apply(c,[f,g].concat(a))},d.prototype.concat=function(a,b){return a.concat(b)},d.prototype.reverse=function(a){return a.reverse()},d.prototype.shorten=function(a){return a.pop(),a},d.prototype.shuffle=function(a,b){var c=ArrayBuffer&&ArrayBuffer.isView&&ArrayBuffer.isView(a);a=b||c?a:a.slice();for(var d,e,f=a.length;f>1;)d=Math.random()*f|0,e=a[--f],a[f]=a[d],a[d]=e;return a},d.prototype.sort=function(a,b){var c=b?a.slice(0,Math.min(b,a.length)):a,d=b?a.slice(Math.min(b,a.length)):[];return c="string"==typeof c[0]?c.sort():c.sort(function(a,b){return a-b}),c.concat(d)},d.prototype.splice=function(a,b,c){return Array.prototype.splice.apply(a,[c,0].concat(b)),a},d.prototype.subset=function(a,b,c){return void 0!==c?a.slice(b,b+c):a.slice(b,a.length)},b.exports=d},{"../core/core":21}],59:[function(a,b,c){"use strict";var d=a("../core/core");d.prototype.float=function(a){return a instanceof Array?a.map(parseFloat):parseFloat(a)},d.prototype.int=function(a,b){return b=b||10,"string"==typeof a?parseInt(a,b):"number"==typeof a?0|a:"boolean"==typeof a?a?1:0:a instanceof Array?a.map(function(a){return d.prototype.int(a,b)}):void 0},d.prototype.str=function(a){return a instanceof 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parseFloat(a)>0?"+"+a.toString():a.toString()}function g(a){return parseFloat(a)>0?" 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Array?a.map(f):f(a)},h.prototype.nfs=function(){h._validateParameters("nfs",arguments);var a=h.prototype.nf.apply(this,arguments);return a instanceof Array?a.map(g):g(a)},h.prototype.split=function(a,b){return h._validateParameters("split",arguments),a.split(b)},h.prototype.splitTokens=function(a,b){h._validateParameters("splitTokens",arguments);var c;if(void 0!==b){var d=b,e=/\]/g.exec(d),f=/\[/g.exec(d);f&&e?(d=d.slice(0,e.index)+d.slice(e.index+1),f=/\[/g.exec(d),d=d.slice(0,f.index)+d.slice(f.index+1),c=new RegExp("[\\["+d+"\\]]","g")):e?(d=d.slice(0,e.index)+d.slice(e.index+1),c=new RegExp("["+d+"\\]]","g")):f?(d=d.slice(0,f.index)+d.slice(f.index+1),c=new RegExp("["+d+"\\[]","g")):c=new RegExp("["+d+"]","g")}else c=/\s/g;return a.split(c).filter(function(a){return a})},h.prototype.trim=function(a){return h._validateParameters("trim",arguments),a instanceof Array?a.map(this.trim):a.trim()},b.exports=h},{"../core/core":21,"../core/error_helpers":24}],61:[function(a,b,c){"use strict";var d=a("../core/core");d.prototype.day=function(){return(new Date).getDate()},d.prototype.hour=function(){return(new Date).getHours()},d.prototype.minute=function(){return(new Date).getMinutes()},d.prototype.millis=function(){return window.performance.now()},d.prototype.month=function(){return(new Date).getMonth()+1},d.prototype.second=function(){return(new Date).getSeconds()},d.prototype.year=function(){return(new Date).getFullYear()},b.exports=d},{"../core/core":21}],62:[function(a,b,c){"use strict";var d=a("../core/core");d.prototype.camera=function(){return this._assert3d("camera"),d._validateParameters("camera",arguments),this._renderer.camera.apply(this._renderer,arguments),this},d.RendererGL.prototype.camera=function(a,b,c,d,e,f,g,h,i){void 0===a&&(a=this.defaultCameraX,b=this.defaultCameraY,c=this.defaultCameraZ,d=a,e=b,f=0,g=0,h=1,i=0),this.cameraX=a,this.cameraY=b,this.cameraZ=c;var j=a-d,k=b-e,l=c-f;this.eyeDist=Math.sqrt(j*j+k*k+l*l),0!==this.eyeDist&&(j/=this.eyeDist,k/=this.eyeDist,l/=this.eyeDist);var m=g,n=h,o=i,p=n*l-o*k,q=-m*l+o*j,r=m*k-n*j;m=k*r-l*q,n=-j*r+l*p,o=j*q-k*p;var s=Math.sqrt(p*p+q*q+r*r);0!==s&&(p/=s,q/=s,r/=s);var t=Math.sqrt(m*m+n*n+o*o);0!==t&&(m/=t,n/=t,o/=t),this.cameraMatrix.set(p,m,j,0,q,n,k,0,r,o,l,0,0,0,0,1);var u=-a,v=-b,w=-c;return this.cameraMatrix.translate([u,v,w]),this.uMVMatrix.set(this.cameraMatrix.mat4[0],this.cameraMatrix.mat4[1],this.cameraMatrix.mat4[2],this.cameraMatrix.mat4[3],this.cameraMatrix.mat4[4],this.cameraMatrix.mat4[5],this.cameraMatrix.mat4[6],this.cameraMatrix.mat4[7],this.cameraMatrix.mat4[8],this.cameraMatrix.mat4[9],this.cameraMatrix.mat4[10],this.cameraMatrix.mat4[11],this.cameraMatrix.mat4[12],this.cameraMatrix.mat4[13],this.cameraMatrix.mat4[14],this.cameraMatrix.mat4[15]),this},d.prototype.perspective=function(){return this._assert3d("perspective"),d._validateParameters("perspective",arguments),this._renderer.perspective.apply(this._renderer,arguments),this},d.RendererGL.prototype.perspective=function(a,b,c,e){void 0===a&&(a=this.defaultCameraFOV),void 0===b&&(b=this.defaultCameraAspect),void 0===c&&(c=this.defaultCameraNear),void 0===e&&(e=this.defaultCameraFar),this.cameraFOV=this._pInst._toRadians(a),this.cameraAspect=b,this.cameraNear=c,this.cameraFar=e,this.uPMatrix=d.Matrix.identity();var f=1/Math.tan(this.cameraFOV/2),g=1/(this.cameraNear-this.cameraFar);this.uPMatrix.set(f/b,0,0,0,0,-f,0,0,0,0,(e+c)*g,-1,0,0,2*e*c*g,0),this._curCamera="custom"},d.prototype.ortho=function(){return this._assert3d("ortho"),d._validateParameters("ortho",arguments),this._renderer.ortho.apply(this._renderer,arguments),this},d.RendererGL.prototype.ortho=function(a,b,c,e,f,g){void 0===a&&(a=-this.width/2),void 0===b&&(b=+this.width/2),void 0===c&&(c=-this.height/2),void 0===e&&(e=+this.height/2),void 0===f&&(f=0),void 0===g&&(g=Math.max(this.width,this.height));var h=b-a,i=e-c,j=g-f,k=2/h,l=2/i,m=-2/j,n=-(b+a)/h,o=-(e+c)/i,p=-(g+f)/j;this.uPMatrix=d.Matrix.identity(),this.uPMatrix.set(k,0,0,0,0,-l,0,0,0,0,m,0,n,o,p,1),this._curCamera="custom"},b.exports=d},{"../core/core":21}],63:[function(a,b,c){"use strict";var d=a("../core/core");d.prototype.orbitControl=function(){return this._assert3d("orbitControl"),d._validateParameters("orbitControl",arguments),this.mouseIsPressed&&(this.rotateY((this.mouseX-this.width/2)/(this.width/2)),this.rotateX((this.mouseY-this.height/2)/(this.width/2))),this},b.exports=d},{"../core/core":21}],64:[function(a,b,c){"use strict";var d=a("../core/core");d.prototype.ambientLight=function(a,b,c,e){this._assert3d("ambientLight"),d._validateParameters("ambientLight",arguments);var f=this.color.apply(this,arguments),g=this._renderer._useLightShader();return g.setUniform("uUseLighting",!0),g.setUniform("uMaterialColor",this._renderer.curFillColor),this._renderer.ambientLightColors.push(f._array[0],f._array[1],f._array[2]),g.setUniform("uAmbientColor",this._renderer.ambientLightColors),g.setUniform("uAmbientLightCount",this._renderer.ambientLightColors.length/3),this},d.prototype.directionalLight=function(a,b,c,e,f,g){this._assert3d("directionalLight"),d._validateParameters("directionalLight",arguments);var h,i,j,k=this._renderer._useLightShader(),l=this.color.apply(this,[a,b,c]),m=arguments[arguments.length-1];"number"==typeof m?(h=arguments[arguments.length-3],i=arguments[arguments.length-2],j=arguments[arguments.length-1]):(h=m.x,i=m.y,j=m.z),k.setUniform("uUseLighting",!0),k.setUniform("uMaterialColor",this._renderer.curFillColor);var n=Math.sqrt(h*h+i*i+j*j);return this._renderer.directionalLightDirections.push(h/n,i/n,j/n),k.setUniform("uLightingDirection",this._renderer.directionalLightDirections),this._renderer.directionalLightColors.push(l._array[0],l._array[1],l._array[2]),k.setUniform("uDirectionalColor",this._renderer.directionalLightColors),k.setUniform("uDirectionalLightCount",this._renderer.directionalLightColors.length/3),this},d.prototype.pointLight=function(a,b,c,e,f,g){this._assert3d("pointLight"),d._validateParameters("pointLight",arguments);var h,i,j,k=this._renderer._pInst.color.apply(this,[a,b,c]),l=arguments[arguments.length-1];"number"==typeof l?(h=arguments[arguments.length-3],i=arguments[arguments.length-2],j=arguments[arguments.length-1]):(h=l.x,i=l.y,j=l.z);var m=this._renderer._useLightShader();return m.setUniform("uUseLighting",!0),m.setUniform("uMaterialColor",this._renderer.curFillColor),this._renderer.pointLightPositions.push(h,i,j),m.setUniform("uPointLightLocation",this._renderer.pointLightPositions),this._renderer.pointLightColors.push(k._array[0],k._array[1],k._array[2]),m.setUniform("uPointLightColor",this._renderer.pointLightColors),m.setUniform("uPointLightCount",this._renderer.pointLightColors.length/3),this},b.exports=d},{"../core/core":21}],65:[function(a,b,c){"use strict";function d(a,b){for(var c={v:[],vt:[],vn:[]},d={},f=0;f<b.length;++f){var g=b[f].trim().split(/\b\s+/);if(g.length>0)if("v"===g[0]||"vn"===g[0]){var h=new e.Vector(parseFloat(g[1]),parseFloat(g[2]),parseFloat(g[3]));c[g[0]].push(h)}else if("vt"===g[0]){var i=[parseFloat(g[1]),parseFloat(g[2])];c[g[0]].push(i)}else if("f"===g[0])for(var j=3;j<g.length;++j){for(var k=[],l=[1,j-1,j],m=0;m<l.length;++m){var n=g[l[m]],o=0;if(void 0!==d[n])o=d[n];else{for(var p=n.split("/"),q=0;q<p.length;q++)p[q]=parseInt(p[q])-1;o=d[n]=a.vertices.length,a.vertices.push(c.v[p[0]].copy()),c.vt[p[1]]?a.uvs.push(c.vt[p[1]].slice()):a.uvs.push([0,0]),c.vn[p[2]]&&a.vertexNormals.push(c.vn[p[2]].copy())}k.push(o)}k[0]!==k[1]&&k[0]!==k[2]&&k[1]!==k[2]&&a.faces.push(k)}}return 0===a.vertexNormals.length&&a.computeNormals(),a}var e=a("../core/core");a("./p5.Geometry"),e.prototype.loadModel=function(a){e._validateParameters("loadModel",arguments);var b,c,f;"boolean"==typeof arguments[1]?(b=arguments[1],c=arguments[2],f=arguments[3]):(b=!1,c=arguments[1],f=arguments[2]);var g=new e.Geometry;g.gid=a+"|"+b;var h=this;return this.loadStrings(a,function(a){d(g,a),b&&g.normalize(),h._decrementPreload(),"function"==typeof c&&c(g)}.bind(this),f),g},e.prototype.model=function(a){this._assert3d("model"),e._validateParameters("model",arguments),a.vertices.length>0&&(this._renderer.geometryInHash(a.gid)||(a._makeTriangleEdges()._edgesToVertices(),this._renderer.createBuffers(a.gid,a)),this._renderer.drawBuffers(a.gid))},b.exports=e},{"../core/core":21,"./p5.Geometry":67}],66:[function(a,b,c){"use strict";var d=a("../core/core"),e=a("../core/constants");a("./p5.Texture"),d.prototype.loadShader=function(a,b){d._validateParameters("loadShader",arguments);var c=new d.Shader,e=this,f=!1,g=!1;return this.loadStrings(b,function(a){c._fragSrc=a.join("\n"),f=!0,g&&e._decrementPreload()}),this.loadStrings(a,function(a){c._vertSrc=a.join("\n"),g=!0,f&&e._decrementPreload()}),c},d.prototype.createShader=function(a,b){return this._assert3d("createShader"),d._validateParameters("createShader",arguments),new d.Shader(this._renderer,a,b)},d.prototype.shader=function(a){return this._assert3d("shader"),d._validateParameters("shader",arguments),void 0===a._renderer&&(a._renderer=this._renderer),a.isStrokeShader()?this._renderer.setStrokeShader(a):this._renderer.setFillShader(a),this},d.prototype.normalMaterial=function(){return this._assert3d("normalMaterial"),d._validateParameters("normalMaterial",arguments),this._renderer.drawMode=e.FILL,this._renderer.setFillShader(this._renderer._getNormalShader()),this._renderer.curFillColor=[1,1,1,1],this.noStroke(),this},d.prototype.texture=function(a){this._assert3d("texture"),d._validateParameters("texture",arguments),this._renderer.drawMode=e.TEXTURE;var b=this._renderer._useLightShader();return b.setUniform("uSpecular",!1),b.setUniform("isTexture",!0),b.setUniform("uSampler",a),this.noStroke(),this},d.prototype.ambientMaterial=function(a,b,c,e){this._assert3d("ambientMaterial"),d._validateParameters("ambientMaterial",arguments);var f=d.prototype.color.apply(this,arguments);this._renderer.curFillColor=f._array;var g=this._renderer._useLightShader();return g.setUniform("uMaterialColor",this._renderer.curFillColor),g.setUniform("uSpecular",!1),g.setUniform("isTexture",!1),this},d.prototype.specularMaterial=function(a,b,c,e){this._assert3d("specularMaterial"),d._validateParameters("specularMaterial",arguments);var f=d.prototype.color.apply(this,arguments);this._renderer.curFillColor=f._array;var g=this._renderer._useLightShader();return g.setUniform("uMaterialColor",this._renderer.curFillColor),g.setUniform("uSpecular",!0),g.setUniform("isTexture",!1),this},d.RendererGL.prototype._applyColorBlend=function(a){var b=this.GL,c=this.drawMode===e.TEXTURE;return c||a[a.length-1]<1?(b.depthMask(c),b.enable(b.BLEND),b.blendEquation(b.FUNC_ADD),b.blendFunc(b.SRC_ALPHA,b.ONE_MINUS_SRC_ALPHA)):(b.depthMask(!0),b.disable(b.BLEND)),a},b.exports=d},{"../core/constants":20,"../core/core":21,"./p5.Texture":73}],67:[function(a,b,c){"use strict";var d=a("../core/core");d.Geometry=function(a,b,c){return this.vertices=[],this.lineVertices=[],this.lineNormals=[],this.vertexNormals=[],this.faces=[],this.uvs=[],this.edges=[],this.detailX=void 0!==a?a:1,this.detailY=void 0!==b?b:1,c instanceof Function&&c.call(this),this},d.Geometry.prototype.computeFaces=function(){this.faces.length=0;for(var a,b,c,d,e=this.detailX+1,f=0;f<this.detailY;f++)for(var g=0;g<this.detailX;g++)a=f*e+g,b=f*e+g+1,c=(f+1)*e+g+1,d=(f+1)*e+g,this.faces.push([a,b,d]),this.faces.push([d,b,c]);return this},d.Geometry.prototype._getFaceNormal=function(a){var b=this.faces[a],c=this.vertices[b[0]],e=this.vertices[b[1]],f=this.vertices[b[2]],g=d.Vector.sub(e,c),h=d.Vector.sub(f,c),i=d.Vector.cross(g,h),j=d.Vector.mag(i),k=j/(d.Vector.mag(g)*d.Vector.mag(h));return 0===k||isNaN(k)?(console.warn("p5.Geometry.prototype._getFaceNormal:","face has colinear sides or a repeated vertex"),i):(k>1&&(k=1),i.mult(Math.asin(k)/j))},d.Geometry.prototype.computeNormals=function(){var a,b=this.vertexNormals,c=this.vertices,e=this.faces;for(b.length=0,a=0;a<c.length;++a)b.push(new d.Vector);for(var f=0;f<e.length;++f)for(var g=e[f],h=this._getFaceNormal(f),i=0;i<3;++i){var j=g[i];b[j].add(h)}for(a=0;a<c.length;++a)b[a].normalize();return this},d.Geometry.prototype.averageNormals=function(){for(var a=0;a<=this.detailY;a++){var b=this.detailX+1,c=d.Vector.add(this.vertexNormals[a*b],this.vertexNormals[a*b+this.detailX]);c=d.Vector.div(c,2),this.vertexNormals[a*b]=c,this.vertexNormals[a*b+this.detailX]=c}return this},d.Geometry.prototype.averagePoleNormals=function(){for(var a=new d.Vector(0,0,0),b=0;b<this.detailX;b++)a.add(this.vertexNormals[b]);for(a=d.Vector.div(a,this.detailX),b=0;b<this.detailX;b++)this.vertexNormals[b]=a;for(a=new d.Vector(0,0,0),b=this.vertices.length-1;b>this.vertices.length-1-this.detailX;b--)a.add(this.vertexNormals[b]);for(a=d.Vector.div(a,this.detailX),b=this.vertices.length-1;b>this.vertices.length-1-this.detailX;b--)this.vertexNormals[b]=a;return this},d.Geometry.prototype._makeTriangleEdges=function(){if(this.edges.length=0,Array.isArray(this.strokeIndices))for(var a=0,b=this.strokeIndices.length;a<b;a++)this.edges.push(this.strokeIndices[a]);else for(var c=0;c<this.faces.length;c++)this.edges.push([this.faces[c][0],this.faces[c][1]]),this.edges.push([this.faces[c][1],this.faces[c][2]]),this.edges.push([this.faces[c][2],this.faces[c][0]]);return this},d.Geometry.prototype._edgesToVertices=function(){this.lineVertices.length=0,this.lineNormals.length=0;for(var a=0;a<this.edges.length;a++){var b=this.vertices[this.edges[a][0]],c=this.vertices[this.edges[a][1]],d=c.copy().sub(b).normalize(),e=b.array(),f=b.array(),g=c.array(),h=c.array(),i=d.array(),j=d.array();i.push(1),j.push(-1),this.lineNormals.push(i,j,i,i,j,j),this.lineVertices.push(e,f,g,g,f,h)}return this},d.Geometry.prototype.normalize=function(){if(this.vertices.length>0){for(var a=this.vertices[0].copy(),b=this.vertices[0].copy(),c=0;c<this.vertices.length;c++)a.x=Math.max(a.x,this.vertices[c].x),b.x=Math.min(b.x,this.vertices[c].x),a.y=Math.max(a.y,this.vertices[c].y),b.y=Math.min(b.y,this.vertices[c].y),a.z=Math.max(a.z,this.vertices[c].z),b.z=Math.min(b.z,this.vertices[c].z);var e=d.Vector.lerp(a,b,.5),f=d.Vector.sub(a,b),g=Math.max(Math.max(f.x,f.y),f.z),h=200/g;for(c=0;c<this.vertices.length;c++)this.vertices[c].sub(e),this.vertices[c].mult(h)}return this},b.exports=d.Geometry},{"../core/core":21}],68:[function(a,b,c){"use strict";var d=a("../core/core"),e=Array,f=function(a){return a instanceof Array};"undefined"!=typeof Float32Array&&(e=Float32Array,f=function(a){return a instanceof Array||a instanceof Float32Array}),d.Matrix=function(){for(var a=new Array(arguments.length),b=0;b<a.length;++b)a[b]=arguments[b];return a.length&&a[a.length-1]instanceof d&&(this.p5=a[a.length-1]),"mat3"===a[0]?this.mat3=Array.isArray(a[1])?a[1]:new e([1,0,0,0,1,0,0,0,1]):this.mat4=Array.isArray(a[0])?a[0]:new e([1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1]),this},d.Matrix.prototype.set=function(a){return a instanceof d.Matrix?(this.mat4=a.mat4,this):f(a)?(this.mat4=a,this):(16===arguments.length&&(this.mat4[0]=arguments[0],this.mat4[1]=arguments[1],this.mat4[2]=arguments[2],this.mat4[3]=arguments[3],this.mat4[4]=arguments[4],this.mat4[5]=arguments[5],this.mat4[6]=arguments[6],this.mat4[7]=arguments[7],this.mat4[8]=arguments[8],this.mat4[9]=arguments[9],this.mat4[10]=arguments[10],this.mat4[11]=arguments[11],this.mat4[12]=arguments[12],this.mat4[13]=arguments[13],this.mat4[14]=arguments[14],this.mat4[15]=arguments[15]),this)},d.Matrix.prototype.get=function(){return new d.Matrix(this.mat4,this.p5)},d.Matrix.prototype.copy=function(){var a=new d.Matrix(this.p5);return a.mat4[0]=this.mat4[0],a.mat4[1]=this.mat4[1],a.mat4[2]=this.mat4[2],a.mat4[3]=this.mat4[3],a.mat4[4]=this.mat4[4],a.mat4[5]=this.mat4[5],a.mat4[6]=this.mat4[6],a.mat4[7]=this.mat4[7],a.mat4[8]=this.mat4[8],a.mat4[9]=this.mat4[9],a.mat4[10]=this.mat4[10],a.mat4[11]=this.mat4[11],a.mat4[12]=this.mat4[12],a.mat4[13]=this.mat4[13],a.mat4[14]=this.mat4[14],a.mat4[15]=this.mat4[15],a},d.Matrix.identity=function(a){return new d.Matrix(a)},d.Matrix.prototype.transpose=function(a){var b,c,e,g,h,i;return a instanceof d.Matrix?(b=a.mat4[1],c=a.mat4[2],e=a.mat4[3],g=a.mat4[6],h=a.mat4[7],i=a.mat4[11],this.mat4[0]=a.mat4[0],this.mat4[1]=a.mat4[4],this.mat4[2]=a.mat4[8],this.mat4[3]=a.mat4[12],this.mat4[4]=b,this.mat4[5]=a.mat4[5],this.mat4[6]=a.mat4[9],this.mat4[7]=a.mat4[13],this.mat4[8]=c,this.mat4[9]=g,this.mat4[10]=a.mat4[10],this.mat4[11]=a.mat4[14],this.mat4[12]=e,this.mat4[13]=h,this.mat4[14]=i,this.mat4[15]=a.mat4[15]):f(a)&&(b=a[1],c=a[2],e=a[3],g=a[6],h=a[7],i=a[11],this.mat4[0]=a[0],this.mat4[1]=a[4],this.mat4[2]=a[8],this.mat4[3]=a[12],this.mat4[4]=b,this.mat4[5]=a[5],this.mat4[6]=a[9],this.mat4[7]=a[13],this.mat4[8]=c,this.mat4[9]=g,this.mat4[10]=a[10],this.mat4[11]=a[14],this.mat4[12]=e,this.mat4[13]=h,this.mat4[14]=i,this.mat4[15]=a[15]),this},d.Matrix.prototype.invert=function(a){var b,c,e,g,h,i,j,k,l,m,n,o,p,q,r,s;a instanceof d.Matrix?(b=a.mat4[0],c=a.mat4[1],e=a.mat4[2],g=a.mat4[3],h=a.mat4[4],i=a.mat4[5],j=a.mat4[6],k=a.mat4[7],l=a.mat4[8],m=a.mat4[9],n=a.mat4[10],o=a.mat4[11],p=a.mat4[12],q=a.mat4[13],r=a.mat4[14],s=a.mat4[15]):f(a)&&(b=a[0],c=a[1],e=a[2],g=a[3],h=a[4],i=a[5],j=a[6],k=a[7],l=a[8],m=a[9],n=a[10],o=a[11],p=a[12],q=a[13],r=a[14],s=a[15]);var t=b*i-c*h,u=b*j-e*h,v=b*k-g*h,w=c*j-e*i,x=c*k-g*i,y=e*k-g*j,z=l*q-m*p,A=l*r-n*p,B=l*s-o*p,C=m*r-n*q,D=m*s-o*q,E=n*s-o*r,F=t*E-u*D+v*C+w*B-x*A+y*z;return F?(F=1/F,this.mat4[0]=(i*E-j*D+k*C)*F,this.mat4[1]=(e*D-c*E-g*C)*F,this.mat4[2]=(q*y-r*x+s*w)*F,this.mat4[3]=(n*x-m*y-o*w)*F,this.mat4[4]=(j*B-h*E-k*A)*F,this.mat4[5]=(b*E-e*B+g*A)*F,this.mat4[6]=(r*v-p*y-s*u)*F,this.mat4[7]=(l*y-n*v+o*u)*F,this.mat4[8]=(h*D-i*B+k*z)*F,this.mat4[9]=(c*B-b*D-g*z)*F,this.mat4[10]=(p*x-q*v+s*t)*F,this.mat4[11]=(m*v-l*x-o*t)*F,this.mat4[12]=(i*A-h*C-j*z)*F,this.mat4[13]=(b*C-c*A+e*z)*F,this.mat4[14]=(q*u-p*w-r*t)*F,this.mat4[15]=(l*w-m*u+n*t)*F,this):null},d.Matrix.prototype.invert3x3=function(){var a=this.mat3[0],b=this.mat3[1],c=this.mat3[2],d=this.mat3[3],e=this.mat3[4],f=this.mat3[5],g=this.mat3[6],h=this.mat3[7],i=this.mat3[8],j=i*e-f*h,k=-i*d+f*g,l=h*d-e*g,m=a*j+b*k+c*l;return m?(m=1/m,this.mat3[0]=j*m,this.mat3[1]=(-i*b+c*h)*m,this.mat3[2]=(f*b-c*e)*m,this.mat3[3]=k*m,this.mat3[4]=(i*a-c*g)*m,this.mat3[5]=(-f*a+c*d)*m,this.mat3[6]=l*m,this.mat3[7]=(-h*a+b*g)*m,this.mat3[8]=(e*a-b*d)*m,this):null},d.Matrix.prototype.transpose3x3=function(a){var b=a[1],c=a[2],d=a[5];return this.mat3[1]=a[3],this.mat3[2]=a[6],this.mat3[3]=b,this.mat3[5]=a[7],this.mat3[6]=c,this.mat3[7]=d,this},d.Matrix.prototype.inverseTranspose=function(a){void 0===this.mat3?console.error("sorry, this function only works with mat3"):(this.mat3[0]=a.mat4[0],this.mat3[1]=a.mat4[1],this.mat3[2]=a.mat4[2],this.mat3[3]=a.mat4[4],this.mat3[4]=a.mat4[5],this.mat3[5]=a.mat4[6],this.mat3[6]=a.mat4[8],this.mat3[7]=a.mat4[9],this.mat3[8]=a.mat4[10]);var b=this.invert3x3();if(b)b.transpose3x3(this.mat3);else for(var c=0;c<9;c++)this.mat3[c]=0;return this},d.Matrix.prototype.determinant=function(){var a=this.mat4[0]*this.mat4[5]-this.mat4[1]*this.mat4[4],b=this.mat4[0]*this.mat4[6]-this.mat4[2]*this.mat4[4],c=this.mat4[0]*this.mat4[7]-this.mat4[3]*this.mat4[4],d=this.mat4[1]*this.mat4[6]-this.mat4[2]*this.mat4[5],e=this.mat4[1]*this.mat4[7]-this.mat4[3]*this.mat4[5],f=this.mat4[2]*this.mat4[7]-this.mat4[3]*this.mat4[6],g=this.mat4[8]*this.mat4[13]-this.mat4[9]*this.mat4[12],h=this.mat4[8]*this.mat4[14]-this.mat4[10]*this.mat4[12],i=this.mat4[8]*this.mat4[15]-this.mat4[11]*this.mat4[12],j=this.mat4[9]*this.mat4[14]-this.mat4[10]*this.mat4[13],k=this.mat4[9]*this.mat4[15]-this.mat4[11]*this.mat4[13];return a*(this.mat4[10]*this.mat4[15]-this.mat4[11]*this.mat4[14])-b*k+c*j+d*i-e*h+f*g},d.Matrix.prototype.mult=function(a){var b;if(a===this||a===this.mat4)b=this.copy().mat4;else if(a instanceof d.Matrix)b=a.mat4;else{if(!f(a))return;b=a}var c=this.mat4[0],e=this.mat4[1],g=this.mat4[2],h=this.mat4[3];return this.mat4[0]=c*b[0]+e*b[4]+g*b[8]+h*b[12],this.mat4[1]=c*b[1]+e*b[5]+g*b[9]+h*b[13],this.mat4[2]=c*b[2]+e*b[6]+g*b[10]+h*b[14],this.mat4[3]=c*b[3]+e*b[7]+g*b[11]+h*b[15],c=this.mat4[4],e=this.mat4[5],g=this.mat4[6],h=this.mat4[7],this.mat4[4]=c*b[0]+e*b[4]+g*b[8]+h*b[12],this.mat4[5]=c*b[1]+e*b[5]+g*b[9]+h*b[13],this.mat4[6]=c*b[2]+e*b[6]+g*b[10]+h*b[14],this.mat4[7]=c*b[3]+e*b[7]+g*b[11]+h*b[15],c=this.mat4[8],e=this.mat4[9],g=this.mat4[10],h=this.mat4[11],this.mat4[8]=c*b[0]+e*b[4]+g*b[8]+h*b[12],this.mat4[9]=c*b[1]+e*b[5]+g*b[9]+h*b[13],this.mat4[10]=c*b[2]+e*b[6]+g*b[10]+h*b[14],this.mat4[11]=c*b[3]+e*b[7]+g*b[11]+h*b[15],c=this.mat4[12],e=this.mat4[13],g=this.mat4[14],h=this.mat4[15],this.mat4[12]=c*b[0]+e*b[4]+g*b[8]+h*b[12],this.mat4[13]=c*b[1]+e*b[5]+g*b[9]+h*b[13],this.mat4[14]=c*b[2]+e*b[6]+g*b[10]+h*b[14],this.mat4[15]=c*b[3]+e*b[7]+g*b[11]+h*b[15],this},d.Matrix.prototype.scale=function(a,b,c){return a instanceof d.Vector?(b=a.y,c=a.z,a=a.x):a instanceof Array&&(b=a[1],c=a[2],a=a[0]),this.mat4[0]*=a,this.mat4[1]*=a,this.mat4[2]*=a,this.mat4[3]*=a,this.mat4[4]*=b,this.mat4[5]*=b,this.mat4[6]*=b,this.mat4[7]*=b,this.mat4[8]*=c,this.mat4[9]*=c,this.mat4[10]*=c,this.mat4[11]*=c,this},d.Matrix.prototype.rotate=function(a,b,c,e){var f=this.p5?this.p5._toRadians(a):a;b instanceof d.Vector?(c=b.y,e=b.z,b=b.x):b instanceof Array&&(c=b[1],e=b[2],b=b[0]);var g=Math.sqrt(b*b+c*c+e*e);b*=1/g,c*=1/g,e*=1/g;var h=this.mat4[0],i=this.mat4[1],j=this.mat4[2],k=this.mat4[3],l=this.mat4[4],m=this.mat4[5],n=this.mat4[6],o=this.mat4[7],p=this.mat4[8],q=this.mat4[9],r=this.mat4[10],s=this.mat4[11],t=Math.sin(f),u=Math.cos(f),v=1-u,w=b*b*v+u,x=c*b*v+e*t,y=e*b*v-c*t,z=b*c*v-e*t,A=c*c*v+u,B=e*c*v+b*t,C=b*e*v+c*t,D=c*e*v-b*t,E=e*e*v+u;return this.mat4[0]=h*w+l*x+p*y,this.mat4[1]=i*w+m*x+q*y,this.mat4[2]=j*w+n*x+r*y,this.mat4[3]=k*w+o*x+s*y,this.mat4[4]=h*z+l*A+p*B,this.mat4[5]=i*z+m*A+q*B,this.mat4[6]=j*z+n*A+r*B,this.mat4[7]=k*z+o*A+s*B,this.mat4[8]=h*C+l*D+p*E,this.mat4[9]=i*C+m*D+q*E,this.mat4[10]=j*C+n*D+r*E,this.mat4[11]=k*C+o*D+s*E,this},d.Matrix.prototype.translate=function(a){var b=a[0],c=a[1],d=a[2]||0;this.mat4[12]+=this.mat4[0]*b+this.mat4[4]*c+this.mat4[8]*d,this.mat4[13]+=this.mat4[1]*b+this.mat4[5]*c+this.mat4[9]*d,this.mat4[14]+=this.mat4[2]*b+this.mat4[6]*c+this.mat4[10]*d,this.mat4[15]+=this.mat4[3]*b+this.mat4[7]*c+this.mat4[11]*d},d.Matrix.prototype.rotateX=function(a){this.rotate(a,1,0,0)},d.Matrix.prototype.rotateY=function(a){this.rotate(a,0,1,0)},d.Matrix.prototype.rotateZ=function(a){this.rotate(a,0,0,1)},d.Matrix.prototype.perspective=function(a,b,c,d){var e=1/Math.tan(a/2),f=1/(c-d);return this.mat4[0]=e/b,this.mat4[1]=0,this.mat4[2]=0,this.mat4[3]=0,this.mat4[4]=0,this.mat4[5]=e,this.mat4[6]=0,this.mat4[7]=0,this.mat4[8]=0,this.mat4[9]=0,this.mat4[10]=(d+c)*f,this.mat4[11]=-1,this.mat4[12]=0,this.mat4[13]=0,this.mat4[14]=2*d*c*f,this.mat4[15]=0,this},d.Matrix.prototype.ortho=function(a,b,c,d,e,f){var g=1/(a-b),h=1/(c-d),i=1/(e-f);return this.mat4[0]=-2*g,this.mat4[1]=0,this.mat4[2]=0,this.mat4[3]=0,this.mat4[4]=0,this.mat4[5]=-2*h,this.mat4[6]=0,this.mat4[7]=0,this.mat4[8]=0,this.mat4[9]=0,this.mat4[10]=2*i,this.mat4[11]=0,this.mat4[12]=(a+b)*g,this.mat4[13]=(d+c)*h,this.mat4[14]=(f+e)*i,this.mat4[15]=1,this},b.exports=d.Matrix},{"../core/core":21}],69:[function(a,b,c){"use strict";var d=a("../core/core"),e=a("../core/constants");d.RendererGL.prototype.beginShape=function(a){return this.immediateMode.shapeMode=void 0!==a?a:e.LINE_STRIP,void 0===this.immediateMode.vertices?(this.immediateMode.vertices=[],this.immediateMode.edges=[],this.immediateMode.lineVertices=[],this.immediateMode.vertexColors=[],this.immediateMode.lineNormals=[],this.immediateMode.uvCoords=[],this.immediateMode.vertexBuffer=this.GL.createBuffer(),this.immediateMode.colorBuffer=this.GL.createBuffer(),this.immediateMode.uvBuffer=this.GL.createBuffer(),this.immediateMode.lineVertexBuffer=this.GL.createBuffer(),this.immediateMode.lineNormalBuffer=this.GL.createBuffer()):(this.immediateMode.vertices.length=0,this.immediateMode.edges.length=0,this.immediateMode.lineVertices.length=0,this.immediateMode.lineNormals.length=0,this.immediateMode.vertexColors.length=0,this.immediateMode.uvCoords.length=0),this.isImmediateDrawing=!0,this},
d.RendererGL.prototype.vertex=function(a,b){var c,e,f;c=e=f=0,3===arguments.length?c=arguments[2]:4===arguments.length?(e=arguments[2],f=arguments[3]):5===arguments.length&&(c=arguments[2],e=arguments[3],f=arguments[4]);var g=new d.Vector(a,b,c);this.immediateMode.vertices.push(g);var h=this.curFillColor||[.5,.5,.5,1];return this.immediateMode.vertexColors.push(h[0],h[1],h[2],h[3]),this.immediateMode.uvCoords.push(e,f),this},d.RendererGL.prototype.endShape=function(a,b,c,f,g,h){if(this._useImmediateModeShader(),this._doStroke&&this.drawMode!==e.TEXTURE){for(var i=0;i<this.immediateMode.vertices.length-1;i++)this.immediateMode.edges.push([i,i+1]);a===e.CLOSE&&this.immediateMode.edges.push([this.immediateMode.vertices.length-1,0]),d.Geometry.prototype._edgesToVertices.call(this.immediateMode),this._drawStrokeImmediateMode()}return this._doFill&&this._drawFillImmediateMode(a,b,c,f,g,h),this.immediateMode.vertices.length=0,this.immediateMode.vertexColors.length=0,this.immediateMode.uvCoords.length=0,this.isImmediateDrawing=!1,this},d.RendererGL.prototype._drawFillImmediateMode=function(a,b,c,d,f,g){var h=this.GL;if(this.curFillShader.bindShader(),this.curFillShader.attributes.aPosition&&(this._bindBuffer(this.immediateMode.vertexBuffer,h.ARRAY_BUFFER,this._vToNArray(this.immediateMode.vertices),Float32Array,h.DYNAMIC_DRAW),this.curFillShader.enableAttrib(this.curFillShader.attributes.aPosition.location,3,h.FLOAT,!1,0,0)),this.drawMode===e.FILL&&this.curFillShader.attributes.aVertexColor&&(this._bindBuffer(this.immediateMode.colorBuffer,h.ARRAY_BUFFER,this.immediateMode.vertexColors,Float32Array,h.DYNAMIC_DRAW),this.curFillShader.enableAttrib(this.curFillShader.attributes.aVertexColor.location,4,h.FLOAT,!1,0,0)),this.drawMode===e.TEXTURE&&this.curFillShader.attributes.aTexCoord&&(this._bindBuffer(this.immediateMode.uvBuffer,h.ARRAY_BUFFER,this.immediateMode.uvCoords,Float32Array,h.DYNAMIC_DRAW),this.curFillShader.enableAttrib(this.curFillShader.attributes.aTexCoord.location,2,h.FLOAT,!1,0,0)),this.drawMode===e.FILL||this.drawMode===e.TEXTURE)switch(this.immediateMode.shapeMode){case e.LINE_STRIP:case e.LINES:case e.TRIANGLES:this.immediateMode.shapeMode=e.TRIANGLE_FAN}else switch(this.immediateMode.shapeMode){case e.LINE_STRIP:case e.LINES:this.immediateMode.shapeMode=e.LINE_LOOP}if(this.immediateMode.shapeMode===e.QUADS||this.immediateMode.shapeMode===e.QUAD_STRIP)throw new Error("sorry, "+this.immediateMode.shapeMode+" not yet implemented in webgl mode.");this._applyColorBlend(this.curFillColor),h.enable(h.BLEND),h.drawArrays(this.immediateMode.shapeMode,0,this.immediateMode.vertices.length),this.curFillShader.unbindShader()},d.RendererGL.prototype._drawStrokeImmediateMode=function(){var a=this.GL;this.curStrokeShader.bindShader(),this.curStrokeShader.attributes.aPosition&&(this._bindBuffer(this.immediateMode.lineVertexBuffer,a.ARRAY_BUFFER,this._flatten(this.immediateMode.lineVertices),Float32Array,a.STATIC_DRAW),this.curStrokeShader.enableAttrib(this.curStrokeShader.attributes.aPosition.location,3,a.FLOAT,!1,0,0)),this.curStrokeShader.attributes.aDirection&&(this._bindBuffer(this.immediateMode.lineNormalBuffer,a.ARRAY_BUFFER,this._flatten(this.immediateMode.lineNormals),Float32Array,a.STATIC_DRAW),this.curStrokeShader.enableAttrib(this.curStrokeShader.attributes.aDirection.location,4,a.FLOAT,!1,0,0)),this._applyColorBlend(this.curStrokeColor),a.drawArrays(a.TRIANGLES,0,this.immediateMode.lineVertices.length),this.curStrokeShader.unbindShader()},b.exports=d.RendererGL},{"../core/constants":20,"../core/core":21}],70:[function(a,b,c){"use strict";var d=a("../core/core"),e=0;d.RendererGL.prototype._initBufferDefaults=function(a){if(this._freeBuffers(a),++e>1e3){var b=Object.keys(this.gHash)[0];delete this.gHash[b],e--}this.gHash[a]={}},d.RendererGL.prototype._freeBuffers=function(a){var b=this.gHash[a];if(b){delete this.gHash[a],e--;var c=this.GL;b.vertexBuffer&&c.deleteBuffer(b.vertexBuffer),b.normalBuffer&&c.deleteBuffer(b.normalBuffer),b.lineNormalBuffer&&c.deleteBuffer(b.lineNormalBuffer),b.uvBuffer&&c.deleteBuffer(b.uvBuffer),b.indexBuffer&&c.deleteBuffer(b.indexBuffer),b.lineVertexBuffer&&c.deleteBuffer(b.lineVertexBuffer)}},d.RendererGL.prototype.createBuffers=function(a,b){var c=this.GL;this._setDefaultCamera(),this._initBufferDefaults(a);var d=this.gHash[a];d.numberOfItems=3*b.faces.length,d.lineVertexCount=b.lineVertices.length,this._useColorShader(),this.curStrokeShader.attributes.aPosition&&(d.lineVertexBuffer=c.createBuffer(),this._bindBuffer(d.lineVertexBuffer,c.ARRAY_BUFFER,this._flatten(b.lineVertices),Float32Array,c.STATIC_DRAW),this.curStrokeShader.enableAttrib(this.curStrokeShader.attributes.aPosition.location,3,c.FLOAT,!1,0,0)),this.curStrokeShader.attributes.aDirection&&(d.lineNormalBuffer=c.createBuffer(),this._bindBuffer(d.lineNormalBuffer,c.ARRAY_BUFFER,this._flatten(b.lineNormals),Float32Array,c.STATIC_DRAW),this.curStrokeShader.enableAttrib(this.curStrokeShader.attributes.aDirection.location,4,c.FLOAT,!1,0,0)),this.curFillShader.attributes.aPosition&&(d.vertexBuffer=c.createBuffer(),this._bindBuffer(d.vertexBuffer,c.ARRAY_BUFFER,this._vToNArray(b.vertices),Float32Array,c.STATIC_DRAW),this.curFillShader.enableAttrib(this.curFillShader.attributes.aPosition.location,3,c.FLOAT,!1,0,0)),d.indexBuffer=c.createBuffer(),this._bindBuffer(d.indexBuffer,c.ELEMENT_ARRAY_BUFFER,this._flatten(b.faces),Uint16Array,c.STATIC_DRAW),this.curFillShader.attributes.aNormal&&(d.normalBuffer=c.createBuffer(),this._bindBuffer(d.normalBuffer,c.ARRAY_BUFFER,this._vToNArray(b.vertexNormals),Float32Array,c.STATIC_DRAW),this.curFillShader.enableAttrib(this.curFillShader.attributes.aNormal.location,3,c.FLOAT,!1,0,0)),this.curFillShader.attributes.aTexCoord&&(d.uvBuffer=c.createBuffer(),this._bindBuffer(d.uvBuffer,c.ARRAY_BUFFER,this._flatten(b.uvs),Float32Array,c.STATIC_DRAW),this.curFillShader.enableAttrib(this.curFillShader.attributes.aTexCoord.location,2,c.FLOAT,!1,0,0))},d.RendererGL.prototype.drawBuffers=function(a){this._setDefaultCamera();var b=this.GL;this._useColorShader();var c=this.gHash[a];return this._doStroke&&c.lineVertexCount>0&&(this.curStrokeShader.bindShader(),c.lineVertexBuffer&&(this._bindBuffer(c.lineVertexBuffer,b.ARRAY_BUFFER),this.curStrokeShader.enableAttrib(this.curStrokeShader.attributes.aPosition.location,3,b.FLOAT,!1,0,0)),c.lineNormalBuffer&&(this._bindBuffer(c.lineNormalBuffer,b.ARRAY_BUFFER),this.curStrokeShader.enableAttrib(this.curStrokeShader.attributes.aDirection.location,4,b.FLOAT,!1,0,0)),this._applyColorBlend(this.curStrokeColor),this._drawArrays(b.TRIANGLES,a),this.curStrokeShader.unbindShader()),!1!==this._doFill&&(this.curFillShader.bindShader(),c.vertexBuffer&&(this._bindBuffer(c.vertexBuffer,b.ARRAY_BUFFER),this.curFillShader.enableAttrib(this.curFillShader.attributes.aPosition.location,3,b.FLOAT,!1,0,0)),c.indexBuffer&&this._bindBuffer(c.indexBuffer,b.ELEMENT_ARRAY_BUFFER),c.normalBuffer&&(this._bindBuffer(c.normalBuffer,b.ARRAY_BUFFER),this.curFillShader.enableAttrib(this.curFillShader.attributes.aNormal.location,3,b.FLOAT,!1,0,0)),c.uvBuffer&&(this._bindBuffer(c.uvBuffer,b.ARRAY_BUFFER),this.curFillShader.enableAttrib(this.curFillShader.attributes.aTexCoord.location,2,b.FLOAT,!1,0,0)),this._applyColorBlend(this.curFillColor),this._drawElements(b.TRIANGLES,a),this.curFillShader.unbindShader()),this},d.RendererGL.prototype.drawBuffersScaled=function(a,b,c,d){var e=this.uMVMatrix.copy();try{this.uMVMatrix.scale(b,c,d),this.drawBuffers(a)}finally{this.uMVMatrix=e}},d.RendererGL.prototype._drawArrays=function(a,b){return this.GL.drawArrays(a,0,this.gHash[b].lineVertexCount),this},d.RendererGL.prototype._drawElements=function(a,b){this.GL.drawElements(a,this.gHash[b].numberOfItems,this.GL.UNSIGNED_SHORT,0)},b.exports=d.RendererGL},{"../core/core":21}],71:[function(a,b,c){"use strict";var d=a("../core/core"),e=a("../core/constants");a("./p5.Shader"),a("../core/p5.Renderer"),a("./p5.Matrix");var f={immediateVert:"attribute vec3 aPosition;\nattribute vec4 aVertexColor;\n\nuniform mat4 uModelViewMatrix;\nuniform mat4 uProjectionMatrix;\nuniform float uResolution;\nuniform float uPointSize;\n\nvarying vec4 vColor;\nvoid main(void) {\n  vec4 positionVec4 = vec4(aPosition, 1.0);\n  gl_Position = uProjectionMatrix * uModelViewMatrix * positionVec4;\n  vColor = aVertexColor;\n  gl_PointSize = uPointSize;\n}\n",vertexColorVert:"attribute vec3 aPosition;\nattribute vec4 aVertexColor;\n\nuniform mat4 uModelViewMatrix;\nuniform mat4 uProjectionMatrix;\n\nvarying vec4 vColor;\n\nvoid main(void) {\n  vec4 positionVec4 = vec4(aPosition, 1.0);\n  gl_Position = uProjectionMatrix * uModelViewMatrix * positionVec4;\n  vColor = aVertexColor;\n}\n",vertexColorFrag:"precision mediump float;\nvarying vec4 vColor;\nvoid main(void) {\n  gl_FragColor = vColor;\n}",normalVert:"attribute vec3 aPosition;\nattribute vec3 aNormal;\nattribute vec2 aTexCoord;\n\nuniform mat4 uModelViewMatrix;\nuniform mat4 uProjectionMatrix;\nuniform mat3 uNormalMatrix;\n\nvarying vec3 vVertexNormal;\nvarying highp vec2 vVertTexCoord;\n\nvoid main(void) {\n  vec4 positionVec4 = vec4(aPosition, 1.0);\n  gl_Position = uProjectionMatrix * uModelViewMatrix * positionVec4;\n  vVertexNormal = normalize(vec3( uNormalMatrix * aNormal ));\n  vVertTexCoord = aTexCoord;\n}\n",normalFrag:"precision mediump float;\nvarying vec3 vVertexNormal;\nvoid main(void) {\n  gl_FragColor = vec4(vVertexNormal, 1.0);\n}",basicFrag:"precision mediump float;\nvarying vec3 vVertexNormal;\nuniform vec4 uMaterialColor;\nvoid main(void) {\n  gl_FragColor = uMaterialColor;\n}",lightVert:"attribute vec3 aPosition;\nattribute vec3 aNormal;\nattribute vec2 aTexCoord;\n\nuniform mat4 uViewMatrix;\nuniform mat4 uModelViewMatrix;\nuniform mat4 uProjectionMatrix;\nuniform mat3 uNormalMatrix;\nuniform int uAmbientLightCount;\nuniform int uDirectionalLightCount;\nuniform int uPointLightCount;\n\nuniform vec3 uAmbientColor[8];\nuniform vec3 uLightingDirection[8];\nuniform vec3 uDirectionalColor[8];\nuniform vec3 uPointLightLocation[8];\nuniform vec3 uPointLightColor[8];\nuniform bool uSpecular;\n\nvarying vec3 vVertexNormal;\nvarying vec2 vVertTexCoord;\nvarying vec3 vLightWeighting;\n\nvoid main(void){\n\n  vec4 positionVec4 = vec4(aPosition, 1.0);\n  gl_Position = uProjectionMatrix * uModelViewMatrix * positionVec4;\n\n  vec3 vertexNormal = normalize(vec3( uNormalMatrix * aNormal ));\n  vVertexNormal = vertexNormal;\n  vVertTexCoord = aTexCoord;\n\n  vec4 mvPosition = uModelViewMatrix * vec4(aPosition, 1.0);\n  vec3 eyeDirection = normalize(-mvPosition.xyz);\n\n  float shininess = 32.0;\n  float specularFactor = 2.0;\n  float diffuseFactor = 0.3;\n\n  vec3 ambientLightFactor = vec3(0.0);\n\n  for (int i = 0; i < 8; i++) {\n    if (uAmbientLightCount == i) break;\n    ambientLightFactor += uAmbientColor[i];\n  }\n\n\n  vec3 directionalLightFactor = vec3(0.0);\n\n  for (int j = 0; j < 8; j++) {\n    if (uDirectionalLightCount == j) break;\n    vec3 dir = uLightingDirection[j];\n    float directionalLightWeighting = max(dot(vertexNormal, -dir), 0.0);\n    directionalLightFactor += uDirectionalColor[j] * directionalLightWeighting;\n  }\n\n\n  vec3 pointLightFactor = vec3(0.0);\n\n  for (int k = 0; k < 8; k++) {\n    if (uPointLightCount == k) break;\n    vec3 loc = (uViewMatrix * vec4(uPointLightLocation[k], 1.0)).xyz;\n    vec3 lightDirection = normalize(loc - mvPosition.xyz);\n\n    float directionalLightWeighting = max(dot(vertexNormal, lightDirection), 0.0);\n\n    float specularLightWeighting = 0.0;\n    if (uSpecular ){\n      vec3 reflectionDirection = reflect(-lightDirection, vertexNormal);\n      specularLightWeighting = pow(max(dot(reflectionDirection, eyeDirection), 0.0), shininess);\n    }\n\n    pointLightFactor += uPointLightColor[k] * (specularFactor * specularLightWeighting\n      + directionalLightWeighting * diffuseFactor);\n  }\n\n  vLightWeighting =  ambientLightFactor + directionalLightFactor + pointLightFactor;\n}\n",lightTextureFrag:"precision mediump float;\n\nuniform vec4 uMaterialColor;\nuniform sampler2D uSampler;\nuniform bool isTexture;\nuniform bool uUseLighting;\n\nvarying vec3 vLightWeighting;\nvarying highp vec2 vVertTexCoord;\n\nvoid main(void) {\n  gl_FragColor = isTexture ? texture2D(uSampler, vVertTexCoord) : uMaterialColor;\n  if (uUseLighting)\n    gl_FragColor.rgb *= vLightWeighting;\n}",phongVert:"precision mediump float;\n\nattribute vec3 aPosition;\nattribute vec3 aNormal;\nattribute vec2 aTexCoord;\n\nuniform vec3 uAmbientColor[8];\n\nuniform mat4 uModelViewMatrix;\nuniform mat4 uProjectionMatrix;\nuniform mat3 uNormalMatrix;\nuniform int uAmbientLightCount;\n\nvarying vec3 vNormal;\nvarying vec2 vTexCoord;\nvarying vec3 vViewPosition;\nvarying vec3 vAmbientColor;\n\nvoid main(void){\n\n  vec4 viewModelPosition = uModelViewMatrix * vec4(aPosition, 1.0);\n\n  // Pass varyings to fragment shader\n  vViewPosition = viewModelPosition.xyz;\n  gl_Position = uProjectionMatrix * viewModelPosition;  \n\n  vNormal = normalize(uNormalMatrix * normalize(aNormal));\n  vTexCoord = aTexCoord;\n\n  vAmbientColor = vec3(0.0);\n  for (int i = 0; i < 8; i++) {\n    if (uAmbientLightCount == i) break;\n    vAmbientColor += uAmbientColor[i];\n  }\n}\n",phongFrag:"precision mediump float;\n\n//uniform mat4 uModelViewMatrix;\nuniform mat4 uViewMatrix;\n\nuniform vec4 uMaterialColor;\nuniform sampler2D uSampler;\nuniform bool isTexture;\nuniform bool uUseLighting;\n\nuniform vec3 uLightingDirection[8];\nuniform vec3 uDirectionalColor[8];\nuniform vec3 uPointLightLocation[8];\nuniform vec3 uPointLightColor[8];\nuniform bool uSpecular;\n\nuniform int uDirectionalLightCount;\nuniform int uPointLightCount;\n\nvarying vec3 vNormal;\nvarying vec2 vTexCoord;\nvarying vec3 vViewPosition;\nvarying vec3 vAmbientColor;\n\nvec3 V;\nvec3 N;\n\nconst float shininess = 32.0;\nconst float specularFactor = 2.0;\nconst float diffuseFactor = 0.73;\n\nstruct LightResult {\n\tfloat specular;\n\tfloat diffuse;\n};\n\nfloat phongSpecular(\n  vec3 lightDirection,\n  vec3 viewDirection,\n  vec3 surfaceNormal,\n  float shininess) {\n\n  vec3 R = normalize(reflect(-lightDirection, surfaceNormal));  \n  return pow(max(0.0, dot(R, viewDirection)), shininess);\n}\n\nfloat lambertDiffuse(\n  vec3 lightDirection,\n  vec3 surfaceNormal) {\n  return max(0.0, dot(-lightDirection, surfaceNormal));\n}\n\nLightResult light(vec3 lightVector) {\n\n  vec3 L = normalize(lightVector);\n\n  //compute our diffuse & specular terms\n  LightResult lr;\n  if (uSpecular)\n    lr.specular = phongSpecular(L, V, N, shininess);\n  lr.diffuse = lambertDiffuse(L, N);\n  return lr;\n}\n\nvoid main(void) {\n\n  V = normalize(vViewPosition);\n  N = vNormal;\n\n  vec3 diffuse = vec3(0.0);\n  float specular = 0.0;\n\n  for (int j = 0; j < 8; j++) {\n    if (uDirectionalLightCount == j) break;\n\n    LightResult result = light(uLightingDirection[j]);\n    diffuse += result.diffuse * uDirectionalColor[j];\n    specular += result.specular;\n  }\n\n  for (int k = 0; k < 8; k++) {\n    if (uPointLightCount == k) break;\n\n    vec3 lightPosition = (uViewMatrix * vec4(uPointLightLocation[k], 1.0)).xyz;\n    vec3 lightVector = vViewPosition - lightPosition;\n\t\n    //calculate attenuation\n    float lightDistance = length(lightVector);\n    float falloff = 500.0 / (lightDistance + 500.0);\n\n    LightResult result = light(lightVector);\n    diffuse += result.diffuse * falloff * uPointLightColor[k];\n    specular += result.specular * falloff;\n  }\n\n  gl_FragColor = isTexture ? texture2D(uSampler, vTexCoord) : uMaterialColor;\n  gl_FragColor.rgb = gl_FragColor.rgb * (diffuse * diffuseFactor + vAmbientColor) + specular * specularFactor;\n}",lineVert:"/*\n  Part of the Processing project - http://processing.org\n  Copyright (c) 2012-15 The Processing Foundation\n  Copyright (c) 2004-12 Ben Fry and Casey Reas\n  Copyright (c) 2001-04 Massachusetts Institute of Technology\n  This library is free software; you can redistribute it and/or\n  modify it under the terms of the GNU Lesser General Public\n  License as published by the Free Software Foundation, version 2.1.\n  This library is distributed in the hope that it will be useful,\n  but WITHOUT ANY WARRANTY; without even the implied warranty of\n  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU\n  Lesser General Public License for more details.\n  You should have received a copy of the GNU Lesser General\n  Public License along with this library; if not, write to the\n  Free Software Foundation, Inc., 59 Temple Place, Suite 330,\n  Boston, MA  02111-1307  USA\n*/\n\n#define PROCESSING_LINE_SHADER\n\nuniform mat4 uModelViewMatrix;\nuniform mat4 uProjectionMatrix;\nuniform float uStrokeWeight;\n\nuniform vec4 uViewport;\nvec3 scale = vec3(1.0);\n\nattribute vec4 aPosition;\nattribute vec4 aDirection;\n  \nvoid main() {\n  vec4 posp = uModelViewMatrix * aPosition;\n  vec4 posq = uModelViewMatrix * (aPosition + vec4(aDirection.xyz, 0));\n\n  // Moving vertices slightly toward the camera\n  // to avoid depth-fighting with the fill triangles.\n  // Discussed here:\n  // http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=252848  \n  posp.xyz = posp.xyz * scale;\n  posq.xyz = posq.xyz * scale;\n\n  vec4 p = uProjectionMatrix * posp;\n  vec4 q = uProjectionMatrix * posq;\n\n  // formula to convert from clip space (range -1..1) to screen space (range 0..[width or height])\n  // screen_p = (p.xy/p.w + <1,1>) * 0.5 * uViewport.zw\n\n  // prevent division by W by transforming the tangent formula (div by 0 causes\n  // the line to disappear, see https://github.com/processing/processing/issues/5183)\n  // t = screen_q - screen_p\n  //\n  // tangent is normalized and we don't care which aDirection it points to (+-)\n  // t = +- normalize( screen_q - screen_p )\n  // t = +- normalize( (q.xy/q.w+<1,1>)*0.5*uViewport.zw - (p.xy/p.w+<1,1>)*0.5*uViewport.zw )\n  //\n  // extract common factor, <1,1> - <1,1> cancels out\n  // t = +- normalize( (q.xy/q.w - p.xy/p.w) * 0.5 * uViewport.zw )\n  //\n  // convert to common divisor\n  // t = +- normalize( ((q.xy*p.w - p.xy*q.w) / (p.w*q.w)) * 0.5 * uViewport.zw )\n  //\n  // remove the common scalar divisor/factor, not needed due to normalize and +-\n  // (keep uViewport - can't remove because it has different components for x and y\n  //  and corrects for aspect ratio, see https://github.com/processing/processing/issues/5181)\n  // t = +- normalize( (q.xy*p.w - p.xy*q.w) * uViewport.zw )\n\n  vec2 tangent = normalize((q.xy*p.w - p.xy*q.w) * uViewport.zw);\n\n  // flip tangent to normal (it's already normalized)\n  vec2 normal = vec2(-tangent.y, tangent.x);\n\n  float thickness = aDirection.w * uStrokeWeight;\n  vec2 offset = normal * thickness / 2.0;\n\n  // Perspective ---\n  // convert from world to clip by multiplying with projection scaling factor\n  // to get the right thickness (see https://github.com/processing/processing/issues/5182)\n  // invert Y, projections in Processing invert Y\n  vec2 perspScale = (uProjectionMatrix * vec4(1, -1, 0, 0)).xy;\n\n  // No Perspective ---\n  // multiply by W (to cancel out division by W later in the pipeline) and\n  // convert from screen to clip (derived from clip to screen above)\n  vec2 noPerspScale = p.w / (0.5 * uViewport.zw);\n\n  //gl_Position.xy = p.xy + offset.xy * mix(noPerspScale, perspScale, float(perspective > 0));\n  gl_Position.xy = p.xy + offset.xy * perspScale;\n  gl_Position.zw = p.zw;\n}\n",lineFrag:"precision mediump float;\nprecision mediump int;\n\nuniform vec4 uMaterialColor;\n\nvoid main() {\n  gl_FragColor = uMaterialColor;\n}"};d.RendererGL=function(a,b,c,e){return d.Renderer.call(this,a,b,c),this.attributes={},e=e||{},this.attributes.alpha=void 0===e.alpha||e.alpha,this.attributes.depth=void 0===e.depth||e.depth,this.attributes.stencil=void 0===e.stencil||e.stencil,this.attributes.antialias=void 0!==e.antialias&&e.antialias,this.attributes.premultipliedAlpha=void 0!==e.premultipliedAlpha&&e.premultipliedAlpha,this.attributes.preserveDrawingBuffer=void 0===e.preserveDrawingBuffer||e.preserveDrawingBuffer,this.attributes.perPixelLighting=void 0!==e.perPixelLighting&&e.perPixelLighting,this._initContext(),this.isP3D=!0,this.GL=this.drawingContext,this.ambientLightColors=[],this.directionalLightDirections=[],this.directionalLightColors=[],this.pointLightPositions=[],this.pointLightColors=[],this.uMVMatrix=new d.Matrix,this.uPMatrix=new d.Matrix,this.uNMatrix=new d.Matrix("mat3"),this._curCamera=null,this._computeCameraDefaultSettings(),this.cameraFOV=this.defaultCameraFOV,this.cameraAspect=this.defaultAspect,this.cameraX=this.defaultCameraX,this.cameraY=this.defaultCameraY,this.cameraZ=this.defaultCameraZ,this.cameraNear=this.defaultCameraNear,this.cameraFar=this.defaultCameraFar,this.cameraMatrix=new d.Matrix,this.camera(),this.gHash={},this._defaultLightShader=void 0,this._defaultImmediateModeShader=void 0,this._defaultNormalShader=void 0,this._defaultColorShader=void 0,this.curFillShader=void 0,this.curStrokeShader=void 0,this._useColorShader(),this.setStrokeShader(this._getLineShader()),this.isImmediateDrawing=!1,this.immediateMode={},this.fill(255,255,255,255),this.pointSize=5,this.strokeWeight(2),this.stroke(0,0,0),this.textures=[],this},d.RendererGL.prototype=Object.create(d.Renderer.prototype),d.RendererGL.prototype._initContext=function(){try{if(this.drawingContext=this.canvas.getContext("webgl",this.attributes)||this.canvas.getContext("experimental-webgl",this.attributes),null===this.drawingContext)throw new Error("Error creating webgl context");console.log("p5.RendererGL: enabled webgl context");var a=this.drawingContext;a.enable(a.DEPTH_TEST),a.depthFunc(a.LEQUAL),a.viewport(0,0,a.drawingBufferWidth,a.drawingBufferHeight),this._viewport=this.drawingContext.getParameter(this.drawingContext.VIEWPORT)}catch(a){throw new Error(a)}},d.RendererGL.prototype._resetContext=function(a,b,c){var e=this.width,f=this.height,g=this.canvas.id,h=this.canvas;h&&h.parentNode.removeChild(h),h=document.createElement("canvas"),h.id=g,this._pInst._userNode?this._pInst._userNode.appendChild(h):document.body.appendChild(h),this._pInst.canvas=h;var i=new d.RendererGL(this._pInst.canvas,this._pInst,!0,a);this._pInst._setProperty("_renderer",i),i.resize(e,f),i._applyDefaults(),this._pInst._elements.push(i),"function"==typeof c&&setTimeout(function(){c.apply(window._renderer,b)},0)},d.prototype.setAttributes=function(a,b){this._assert3d("setAttributes");var c;void 0!==b?(c={},c[a]=b):a instanceof Object&&(c=a),this.push(),this._renderer._resetContext(c),this.pop()},d.RendererGL.prototype._computeCameraDefaultSettings=function(){this.defaultCameraFOV=60/180*Math.PI,this.defaultCameraAspect=this.width/this.height,this.defaultCameraX=0,this.defaultCameraY=0,this.defaultCameraZ=this.height/2/Math.tan(this.defaultCameraFOV/2),this.defaultCameraNear=.1*this.defaultCameraZ,this.defaultCameraFar=10*this.defaultCameraZ},d.RendererGL.prototype._setDefaultCamera=function(){null===this._curCamera&&(this._computeCameraDefaultSettings(),this.cameraFOV=this.defaultCameraFOV,this.cameraAspect=this.defaultAspect,this.cameraX=this.defaultCameraX,this.cameraY=this.defaultCameraY,this.cameraZ=this.defaultCameraZ,this.cameraNear=this.defaultCameraNear,this.cameraFar=this.defaultCameraFar,this.perspective(),this.camera(),this._curCamera="default")},d.RendererGL.prototype._update=function(){this.uMVMatrix.set(this.cameraMatrix.mat4[0],this.cameraMatrix.mat4[1],this.cameraMatrix.mat4[2],this.cameraMatrix.mat4[3],this.cameraMatrix.mat4[4],this.cameraMatrix.mat4[5],this.cameraMatrix.mat4[6],this.cameraMatrix.mat4[7],this.cameraMatrix.mat4[8],this.cameraMatrix.mat4[9],this.cameraMatrix.mat4[10],this.cameraMatrix.mat4[11],this.cameraMatrix.mat4[12],this.cameraMatrix.mat4[13],this.cameraMatrix.mat4[14],this.cameraMatrix.mat4[15]),this.ambientLightColors.length=0,this.directionalLightDirections.length=0,this.directionalLightColors.length=0,this.pointLightPositions.length=0,this.pointLightColors.length=0},d.RendererGL.prototype.background=function(){var a=this._pInst.color.apply(this._pInst,arguments),b=a.levels[0]/255,c=a.levels[1]/255,d=a.levels[2]/255,e=a.levels[3]/255;this.GL.clearColor(b,c,d,e),this.GL.depthMask(!0),this.GL.clear(this.GL.COLOR_BUFFER_BIT|this.GL.DEPTH_BUFFER_BIT)},d.RendererGL.prototype.fill=function(a,b,c,f){var g=d.prototype.color.apply(this._pInst,arguments);this.curFillColor=g._array,this.isImmediateDrawing?this.setFillShader(this._getImmediateModeShader()):this.setFillShader(this._getColorShader()),this.drawMode=e.FILL,this.curFillShader.setUniform("uMaterialColor",this.curFillColor)},d.RendererGL.prototype.stroke=function(a,b,c,e){arguments[3]=255;var f=d.prototype.color.apply(this._pInst,arguments);this.curStrokeColor=f._array,this.curStrokeShader.setUniform("uMaterialColor",this.curStrokeColor)},d.RendererGL.prototype.strokeWeight=function(a){this.curStrokeWeight!==a&&(this.pointSize=a,this.curStrokeWeight=a,this.curStrokeShader.setUniform("uStrokeWeight",a))},d.RendererGL.prototype.get=function(a,b,c,e){return d.Renderer2D.prototype.get.apply(this,[a,b,c,e])},d.RendererGL.prototype.loadPixels=function(){if(!0!==this.attributes.preserveDrawingBuffer)return void console.log("loadPixels only works in WebGL when preserveDrawingBuffer is true.");var a=this._pInst._pixelDensity,b=this.width,c=this.height;b*=a,c*=a,void 0===this.pixels&&(this.pixels=new Uint8Array(this.GL.drawingBufferWidth*this.GL.drawingBufferHeight*4)),this.GL.readPixels(0,0,b,c,this.GL.RGBA,this.GL.UNSIGNED_BYTE,this.pixels),this._pInst._setProperty("pixels",this.pixels)},d.RendererGL.prototype.geometryInHash=function(a){return void 0!==this.gHash[a]},d.RendererGL.prototype.resize=function(a,b){d.Renderer.prototype.resize.call(this,a,b),this.GL.viewport(0,0,this.GL.drawingBufferWidth,this.GL.drawingBufferHeight),this._viewport=this.GL.getParameter(this.GL.VIEWPORT),null!==this._curCamera&&"default"!==this._curCamera||(this._curCamera=null,this._setDefaultCamera()),void 0!==this.pixels&&(this.pixels=new Uint8Array(this.GL.drawingBufferWidth*this.GL.drawingBufferHeight*4))},d.RendererGL.prototype.clear=function(){var a=arguments[0]||0,b=arguments[1]||0,c=arguments[2]||0,d=arguments[3]||0;this.GL.clearColor(a,b,c,d),this.GL.clear(this.GL.COLOR_BUFFER_BIT|this.GL.DEPTH_BUFFER_BIT)},d.RendererGL.prototype.translate=function(a,b,c){return a instanceof d.Vector&&(c=a.z,b=a.y,a=a.x),this.uMVMatrix.translate([a,b,c]),this},d.RendererGL.prototype.scale=function(a,b,c){return this.uMVMatrix.scale(a,b,c),this},d.RendererGL.prototype.rotate=function(a,b){return void 0===b?this.rotateZ(a):(d.Matrix.prototype.rotate.apply(this.uMVMatrix,arguments),this)},d.RendererGL.prototype.rotateX=function(a){return this.rotate(a,1,0,0),this},d.RendererGL.prototype.rotateY=function(a){return this.rotate(a,0,1,0),this},d.RendererGL.prototype.rotateZ=function(a){return this.rotate(a,0,0,1),this},d.RendererGL.prototype.push=function(){var a=d.Renderer.prototype.push.apply(this),b=a.properties;return b.uMVMatrix=this.uMVMatrix.copy(),b.cameraMatrix=this.cameraMatrix.copy(),a},d.RendererGL.prototype.resetMatrix=function(){return this.uMVMatrix=d.Matrix.identity(this._pInst),this},d.RendererGL.prototype._applyTextProperties=function(){console.error("text commands not yet implemented in webgl")},d.RendererGL.prototype.setFillShader=function(a){return this.curFillShader!==a&&(this.curFillShader=a,this.curFillShader.init()),this.curFillShader},d.RendererGL.prototype.setStrokeShader=function(a){return this.curStrokeShader!==a&&(this.curStrokeShader=a,this.curStrokeShader.init()),this.curStrokeShader},d.RendererGL.prototype._useLightShader=function(){return this.curFillShader&&this.curFillShader.isLightShader()||this.setFillShader(this._getLightShader()),this.curFillShader},d.RendererGL.prototype._useColorShader=function(){return this.curFillShader&&this.curFillShader!==this._defaultImmediateModeShader||this.setFillShader(this._getColorShader()),this.curFillShader},d.RendererGL.prototype._useImmediateModeShader=function(){return this.curFillShader&&this.curFillShader!==this._defaultColorShader||this.setFillShader(this._getImmediateModeShader()),this.curFillShader},d.RendererGL.prototype._getLightShader=function(){return this._defaultLightShader||(this.attributes.perPixelLighting?this._defaultLightShader=new d.Shader(this,f.phongVert,f.phongFrag):this._defaultLightShader=new d.Shader(this,f.lightVert,f.lightTextureFrag)),this._defaultLightShader},d.RendererGL.prototype._getImmediateModeShader=function(){return this._defaultImmediateModeShader||(this._defaultImmediateModeShader=new d.Shader(this,f.immediateVert,f.vertexColorFrag)),this._defaultImmediateModeShader},d.RendererGL.prototype._getNormalShader=function(){return this._defaultNormalShader||(this._defaultNormalShader=new d.Shader(this,f.normalVert,f.normalFrag)),this._defaultNormalShader},d.RendererGL.prototype._getColorShader=function(){return this._defaultColorShader||(this._defaultColorShader=new d.Shader(this,f.normalVert,f.basicFrag)),this._defaultColorShader},d.RendererGL.prototype._getLineShader=function(){return this._defaultLineShader||(this._defaultLineShader=new d.Shader(this,f.lineVert,f.lineFrag)),this._defaultLineShader},d.RendererGL.prototype._getEmptyTexture=function(){if(!this._emptyTexture){var a=new d.Image(1,1);a.set(0,0,255),this._emptyTexture=new d.Texture(this,a)}return this._emptyTexture},d.RendererGL.prototype.getTexture=function(a){var b=function(b){return b.src===a},c=this.textures.find(b);return c||(c=new d.Texture(this,a),this.textures.push(c)),c},d.RendererGL.prototype._bindBuffer=function(a,b,c,d,e){if(this.GL.bindBuffer(b,a),void 0!==c){var f=new d(c);this.GL.bufferData(b,f,e)}},d.RendererGL.prototype.smooth=function(){console.log("smoothing not yet implemented in webgl")},d.RendererGL.prototype.noSmooth=function(){console.log("smoothing not yet implemented in webgl")},d.RendererGL.prototype._flatten=function(a){if(0===a.length)return[];if(a.length>2e4){var b,c=Object.prototype.toString,d="[object Array]",e=[],f=a.slice();b=f.pop();do{c.call(b)===d?f.push.apply(f,b):e.push(b)}while(f.length&&void 0!==(b=f.pop()));return e.reverse(),e}return[].concat.apply([],a)},d.RendererGL.prototype._vToNArray=function(a){return this._flatten(a.map(function(a){return[a.x,a.y,a.z]}))},d.prototype._assert3d=function(a){if(!this._renderer.isP3D)throw new Error(a+"() is only supported in WEBGL mode. If you'd like to use 3D graphics and WebGL, see  https://p5js.org/examples/form-3d-primitives.html for more information.")},b.exports=d.RendererGL},{"../core/constants":20,"../core/core":21,"../core/p5.Renderer":28,"./p5.Matrix":68,"./p5.Shader":72}],72:[function(a,b,c){"use strict";var d=a("../core/core");d.Shader=function(a,b,c){return this._renderer=a,this._vertSrc=b,this._fragSrc=c,this._vertShader=-1,this._fragShader=-1,this._glProgram=0,this._loadedAttributes=!1,this.attributes={},this._loadedUniforms=!1,this.uniforms={},this._bound=!1,this.samplers=[],this},d.Shader.prototype.init=function(){if(0===this._glProgram){var a=this._renderer.GL;if(this._vertShader=a.createShader(a.VERTEX_SHADER),a.shaderSource(this._vertShader,this._vertSrc),a.compileShader(this._vertShader),!a.getShaderParameter(this._vertShader,a.COMPILE_STATUS))return console.error("Yikes! An error occurred compiling the vertex shader:"+a.getShaderInfoLog(this._vertShader)),null;if(this._fragShader=a.createShader(a.FRAGMENT_SHADER),a.shaderSource(this._fragShader,this._fragSrc),a.compileShader(this._fragShader),!a.getShaderParameter(this._fragShader,a.COMPILE_STATUS))return console.error("Darn! An error occurred compiling the fragment shader:"+a.getShaderInfoLog(this._fragShader)),null;this._glProgram=a.createProgram(),a.attachShader(this._glProgram,this._vertShader),a.attachShader(this._glProgram,this._fragShader),a.linkProgram(this._glProgram),
a.getProgramParameter(this._glProgram,a.LINK_STATUS)||console.error("Snap! Error linking shader program: "+a.getProgramInfoLog(this._glProgram)),this._loadAttributes(),this._loadUniforms()}return this},d.Shader.prototype._loadAttributes=function(){if(!this._loadedAttributes){this.attributes={};for(var a=this._renderer.GL,b=a.getProgramParameter(this._glProgram,a.ACTIVE_ATTRIBUTES),c=0;c<b;++c){var d=a.getActiveAttrib(this._glProgram,c),e=d.name,f=a.getAttribLocation(this._glProgram,e),g={};g.name=e,g.location=f,g.type=d.type,g.size=d.size,this.attributes[e]=g}this._loadedAttributes=!0}},d.Shader.prototype._loadUniforms=function(){if(!this._loadedUniforms){for(var a=this._renderer.GL,b=a.getProgramParameter(this._glProgram,a.ACTIVE_UNIFORMS),c=0,d=0;d<b;++d){var e=a.getActiveUniform(this._glProgram,d),f={};f.location=a.getUniformLocation(this._glProgram,e.name),f.size=e.size;var g=e.name;e.size>1&&(g=g.substring(0,g.indexOf("[0]"))),f.name=g,f.type=e.type,f.type===a.SAMPLER_2D&&(f.samplerIndex=c,c++,this.samplers.push(f)),this.uniforms[g]=f}this._loadedUniforms=!0}},d.Shader.prototype.compile=function(){},d.Shader.prototype.bindShader=function(){this.init(),this._bound||(this.useProgram(),this._bound=!0,this.bindTextures(),this._loadAttributes(),this._loadUniforms(),this._renderer._setDefaultCamera(),this._setMatrixUniforms(),this===this._renderer.curStrokeShader&&this._setViewportUniform())},d.Shader.prototype.unbindShader=function(){return this._bound&&(this.unbindTextures(),this._bound=!1),this},d.Shader.prototype.bindTextures=function(){for(var a=this._renderer.GL,b=0;b<this.samplers.length;b++){var c=this.samplers[b],d=c.texture;void 0===d&&(d=this._renderer._getEmptyTexture()),a.activeTexture(a.TEXTURE0+c.samplerIndex),d.bindTexture(),d.update(),a.uniform1i(c.location,c.samplerIndex)}},d.Shader.prototype.unbindTextures=function(){},d.Shader.prototype._setMatrixUniforms=function(){this.setUniform("uProjectionMatrix",this._renderer.uPMatrix.mat4),this.setUniform("uModelViewMatrix",this._renderer.uMVMatrix.mat4),this.setUniform("uViewMatrix",this._renderer.cameraMatrix.mat4),this===this._renderer.curFillShader&&(this._renderer.uNMatrix.inverseTranspose(this._renderer.uMVMatrix),this.setUniform("uNormalMatrix",this._renderer.uNMatrix.mat3))},d.Shader.prototype._setViewportUniform=function(){this.setUniform("uViewport",this._renderer._viewport)},d.Shader.prototype.useProgram=function(){return this._renderer.GL.useProgram(this._glProgram),this},d.Shader.prototype.setUniform=function(a,b){var c=this.uniforms[a];if(c){var d=c.location,e=this._renderer.GL;switch(this.useProgram(),c.type){case e.BOOL:!0===b?e.uniform1i(d,1):e.uniform1i(d,0);break;case e.INT:c.size>1?b.length&&e.uniform1iv(d,b):e.uniform1i(d,b);break;case e.FLOAT:c.size>1?b.length&&e.uniform1fv(d,b):e.uniform1f(d,b);break;case e.FLOAT_MAT3:e.uniformMatrix3fv(d,!1,b);break;case e.FLOAT_MAT4:e.uniformMatrix4fv(d,!1,b);break;case e.FLOAT_VEC2:c.size>1?b.length&&e.uniform2fv(d,b):e.uniform2f(d,b[0],b[1]);break;case e.FLOAT_VEC3:c.size>1?b.length&&e.uniform3fv(d,b):e.uniform3f(d,b[0],b[1],b[2]);break;case e.FLOAT_VEC4:c.size>1?b.length&&e.uniform4fv(d,b):e.uniform4f(d,b[0],b[1],b[2],b[3]);break;case e.SAMPLER_2D:e.activeTexture(e.TEXTURE0+c.samplerIndex),c.texture=this._renderer.getTexture(b),e.uniform1i(c.location,c.samplerIndex)}return this}},d.Shader.prototype.isLightShader=function(){return void 0!==this.uniforms.uUseLighting||void 0!==this.uniforms.uAmbientLightCount||void 0!==this.uniforms.uDirectionalLightCount||void 0!==this.uniforms.uPointLightCount||void 0!==this.uniforms.uAmbientColor||void 0!==this.uniforms.uDirectionalColor||void 0!==this.uniforms.uPointLightLocation||void 0!==this.uniforms.uPointLightColor||void 0!==this.uniforms.uLightingDirection||void 0!==this.uniforms.uSpecular},d.Shader.prototype.isTextureShader=function(){return this.samplerIndex>0},d.Shader.prototype.isColorShader=function(){return void 0!==this.attributes.aVertexColor||void 0!==this.uniforms.uMaterialColor},d.Shader.prototype.isTexLightShader=function(){return this.isLightShader()&&this.isTextureShader()},d.Shader.prototype.isStrokeShader=function(){return void 0!==this.uniforms.uStrokeWeight},d.Shader.prototype.enableAttrib=function(a,b,c,d,e,f){var g=this._renderer.GL;return-1!==a&&(g.enableVertexAttribArray(a),g.vertexAttribPointer(a,b,c,d,e,f)),this},b.exports=d.Shader},{"../core/core":21}],73:[function(a,b,c){"use strict";var d=a("../core/core");d.Texture=function(a,b){this._renderer=a;var c=this._renderer.GL;this.src=b,this.glTex=void 0,this.glTarget=c.TEXTURE_2D,this.glFormat=c.RGBA,this.mipmaps=!1,this.glMinFilter=c.LINEAR,this.glMagFilter=c.LINEAR,this.glWrapS=c.CLAMP_TO_EDGE,this.glWrapT=c.CLAMP_TO_EDGE,this.isSrcMediaElement=void 0!==d.MediaElement&&b instanceof d.MediaElement,this._videoPrevUpdateTime=0,this.isSrcHTMLElement=void 0!==d.Element&&b instanceof d.Element&&!(b instanceof d.Graphics),this.isSrcP5Image=b instanceof d.Image,this.isSrcP5Graphics=b instanceof d.Graphics;var e=this._getTextureDataFromSource();return this.width=e.width,this.height=e.height,this.init(e),this},d.Texture.prototype._getTextureDataFromSource=function(){var a;return this.isSrcP5Image?a=this.src.canvas:(this.isSrcMediaElement||this.isSrcP5Graphics||this.isSrcHTMLElement)&&(a=this.src.elt),a},d.Texture.prototype.init=function(a){var b=this._renderer.GL;if(this.glTex=b.createTexture(),this.bindTexture(),b.texParameteri(b.TEXTURE_2D,b.TEXTURE_MAG_FILTER,this.glMagFilter),b.texParameteri(b.TEXTURE_2D,b.TEXTURE_MIN_FILTER,this.glMinFilter),b.texParameteri(b.TEXTURE_2D,b.TEXTURE_WRAP_S,this.glWrapS),b.texParameteri(b.TEXTURE_2D,b.TEXTURE_WRAP_T,this.glWrapT),0===this.width||0===this.height||this.isSrcMediaElement&&!this.src.loadedmetadata){var c=new Uint8Array([1,1,1,1]);b.texImage2D(this.glTarget,0,b.RGBA,1,1,0,this.glFormat,b.UNSIGNED_BYTE,c)}else b.texImage2D(this.glTarget,0,this.glFormat,this.glFormat,b.UNSIGNED_BYTE,a)},d.Texture.prototype.update=function(){var a=this.src;if(0!==a.width&&0!==a.height){var b=this._getTextureDataFromSource(),c=this._renderer.GL;if(b.width!==this.width||b.height!==this.height)this.width=b.width,this.height=b.height,this.bindTexture(),c.texImage2D(this.glTarget,0,this.glFormat,this.glFormat,c.UNSIGNED_BYTE,b),this.isSrcP5Image?a.setModified(!1):(this.isSrcMediaElement||this.isSrcHTMLElement)&&a.setModified(!0);else if(this.isSrcP5Image)a.isModified()&&(this.bindTexture(),c.texImage2D(this.glTarget,0,this.glFormat,this.glFormat,c.UNSIGNED_BYTE,b),a.setModified(!1));else if(this.isSrcMediaElement){var d=!1;a.isModified()?(d=!0,a.setModified(!1)):a.loadedmetadata&&this._videoPrevUpdateTime!==a.time()&&(this._videoPrevUpdateTime=a.time(),d=!0),d&&(this.bindTexture(),c.texImage2D(this.glTarget,0,this.glFormat,this.glFormat,c.UNSIGNED_BYTE,b))}else c.texImage2D(this.glTarget,0,this.glFormat,this.glFormat,c.UNSIGNED_BYTE,b)}},d.Texture.prototype.bindTexture=function(){return this._renderer.GL.bindTexture(this.glTarget,this.glTex),this},d.Texture.prototype.unbindTexture=function(){this._renderer.GL.bindTexture(this.glTarget,null)},b.exports=d.Texture},{"../core/core":21}],74:[function(a,b,c){"use strict";var d=a("../core/core");a("./p5.Geometry"),d.prototype.plane=function(a,b,c,e){this._assert3d("plane"),d._validateParameters("plane",arguments),void 0===a&&(a=50),void 0===b&&(b=a),void 0===c&&(c=1),void 0===e&&(e=1);var f="plane|"+c+"|"+e;if(!this._renderer.geometryInHash(f)){var g=function(){for(var a,b,c,e=0;e<=this.detailY;e++){b=e/this.detailY;for(var f=0;f<=this.detailX;f++)a=f/this.detailX,c=new d.Vector(a-.5,b-.5,0),this.vertices.push(c),this.uvs.push(a,b)}},h=new d.Geometry(c,e,g);h.computeFaces().computeNormals(),c<=1&&e<=1?h._makeTriangleEdges()._edgesToVertices():console.log("Cannot draw stroke on plane objects with more than 1 detailX or 1 detailY"),this._renderer.createBuffers(f,h)}this._renderer.drawBuffersScaled(f,a,b,0)},d.prototype.box=function(a,b,c,e,f){this._assert3d("box"),d._validateParameters("box",arguments),void 0===a&&(a=50),void 0===b&&(b=a),void 0===c&&(c=b);var g=this._renderer.attributes&&this._renderer.attributes.perPixelLighting;void 0===e&&(e=g?1:4),void 0===f&&(f=g?1:4);var h="box|"+e+"|"+f;if(!this._renderer.geometryInHash(h)){var i=function(){var a=[[0,4,2,6],[1,3,5,7],[0,1,4,5],[2,6,3,7],[0,2,1,3],[4,5,6,7]];this.strokeIndices=[[0,1],[1,3],[3,2],[6,7],[8,9],[9,11],[14,15],[16,17],[17,19],[18,19],[20,21],[22,23]];for(var b=0;b<a.length;b++){for(var c=a[b],e=4*b,f=0;f<4;f++){var g=c[f],h=new d.Vector((2*(1&g)-1)/2,((2&g)-1)/2,((4&g)/2-1)/2);this.vertices.push(h),this.uvs.push(1&f,(2&f)/2)}this.faces.push([e,e+1,e+2]),this.faces.push([e+2,e+1,e+3])}},j=new d.Geometry(e,f,i);j.computeNormals(),e<=4&&f<=4?j._makeTriangleEdges()._edgesToVertices():console.log("Cannot draw stroke on box objects with more than 4 detailX or 4 detailY"),this._renderer.createBuffers(h,j)}return this._renderer.drawBuffersScaled(h,a,b,c),this},d.prototype.sphere=function(a,b,c){return this._assert3d("sphere"),d._validateParameters("sphere",arguments),void 0===a&&(a=50),void 0===b&&(b=24),void 0===c&&(c=16),this.ellipsoid(a,a,a,b,c),this};var e=function(a,b,c,e,f,g,h){a=a<=0?1:a,b=b<0?0:b,c=c<=0?a:c,e=e<3?3:e,f=f<1?1:f,g=void 0===g||g,h=void 0===h?0!==b:h;var i,j,k,l,m,n=g?-2:0,o=f+(h?2:0),p={},q=Math.atan2(a-b,c);for(i=n;i<=o;++i){var r,s=i/f,t=c*s;for(i<0?(t=0,s=0,r=a):i>f?(t=c,s=1,r=b):r=a+(b-a)*s,-2!==i&&i!==f+2||(r=0),t-=c/2,p[i]=0===r?1:e,j=0;j<p[i];++j){var u=j/e;this.vertices.push(new d.Vector(Math.sin(2*u*Math.PI)*r,t,Math.cos(2*u*Math.PI)*r)),this.vertexNormals.push(new d.Vector(i<0||i>f?0:Math.sin(2*u*Math.PI)*Math.cos(q),i<0?-1:i>f?1:Math.sin(q),i<0||i>f?0:Math.cos(2*u*Math.PI)*Math.cos(q))),this.uvs.push(u,s)}}var v=0;if(g){for(k=0;k<p[-1];++k)m=(k+1)%p[-1],this.faces.push([v,v+1+m,v+1+k]);v+=p[-2]+p[-1]}for(i=0;i<f;++i){for(j=0;j<p[i];++j)1===p[i+1]?(l=(j+1)%p[i],this.faces.push([v+j,v+l,v+p[i]])):(l=(j+1)%p[i],this.faces.push([v+j,v+l,v+p[i]+l]),this.faces.push([v+j,v+p[i]+l,v+p[i]+j]));v+=p[i]}if(h)for(v+=p[f],j=0;j<p[f+1];++j)l=(j+1)%p[f+1],this.faces.push([v+j,v+l,v+p[f+1]])};d.prototype.cylinder=function(a,b,c,f,g,h){this._assert3d("cylinder"),d._validateParameters("cylinder",arguments),void 0===a&&(a=50),void 0===b&&(b=a),void 0===c&&(c=24),void 0===f&&(f=1),void 0===h&&(h=!0),void 0===g&&(g=!0);var i="cylinder|"+c+"|"+f+"|"+g+"|"+h;if(!this._renderer.geometryInHash(i)){var j=new d.Geometry(c,f);e.call(j,1,1,1,c,f,g,h),j.computeNormals(),c<=24&&f<=16?j._makeTriangleEdges()._edgesToVertices():console.log("Cannot draw stroke on cylinder objects with more than 24 detailX or 16 detailY"),this._renderer.createBuffers(i,j)}return this._renderer.drawBuffersScaled(i,a,b,a),this},d.prototype.cone=function(a,b,c,f,g){this._assert3d("cone"),d._validateParameters("cone",arguments),void 0===a&&(a=50),void 0===b&&(b=a),void 0===c&&(c=24),void 0===f&&(f=1),void 0===g&&(g=!0);var h="cone|"+c+"|"+f+"|"+g;if(!this._renderer.geometryInHash(h)){var i=new d.Geometry(c,f);e.call(i,1,0,1,c,f,g,!1),i.computeNormals(),c<=24&&f<=16?i._makeTriangleEdges()._edgesToVertices():console.log("Cannot draw stroke on cone objects with more than 24 detailX or 16 detailY"),this._renderer.createBuffers(h,i)}return this._renderer.drawBuffersScaled(h,a,b,a),this},d.prototype.ellipsoid=function(a,b,c,e,f){this._assert3d("ellipsoid"),d._validateParameters("ellipsoid",arguments),void 0===a&&(a=50),void 0===b&&(b=a),void 0===c&&(c=a),void 0===e&&(e=24),void 0===f&&(f=16);var g="ellipsoid|"+e+"|"+f;if(!this._renderer.geometryInHash(g)){var h=function(){for(var a=0;a<=this.detailY;a++)for(var b=a/this.detailY,c=Math.PI*b-Math.PI/2,e=Math.cos(c),f=Math.sin(c),g=0;g<=this.detailX;g++){var h=g/this.detailX,i=2*Math.PI*h,j=Math.cos(i),k=Math.sin(i),l=new d.Vector(e*k,f,e*j);this.vertices.push(l),this.vertexNormals.push(l),this.uvs.push(h,b)}},i=new d.Geometry(e,f,h);i.computeFaces(),e<=24&&f<=24?i._makeTriangleEdges()._edgesToVertices():console.log("Cannot draw stroke on ellipsoids with more than 24 detailX or 24 detailY"),this._renderer.createBuffers(g,i)}return this._renderer.drawBuffersScaled(g,a,b,c),this},d.prototype.torus=function(a,b,c,e){if(this._assert3d("torus"),d._validateParameters("torus",arguments),void 0===a)a=50;else if(!a)return;if(void 0===b)b=10;else if(!b)return;void 0===c&&(c=24),void 0===e&&(e=16);var f=(b/a).toPrecision(4),g="torus|"+f+"|"+c+"|"+e;if(!this._renderer.geometryInHash(g)){var h=function(){for(var a=0;a<=this.detailY;a++)for(var b=a/this.detailY,c=2*Math.PI*b,e=Math.cos(c),g=Math.sin(c),h=1+f*e,i=0;i<=this.detailX;i++){var j=i/this.detailX,k=2*Math.PI*j,l=Math.cos(k),m=Math.sin(k),n=new d.Vector(h*l,h*m,f*g),o=new d.Vector(e*l,e*m,g);this.vertices.push(n),this.vertexNormals.push(o),this.uvs.push(j,b)}},i=new d.Geometry(c,e,h);i.computeFaces(),c<=24&&e<=16?i._makeTriangleEdges()._edgesToVertices():console.log("Cannot draw strokes on torus object with more than 24 detailX or 16 detailY"),this._renderer.createBuffers(g,i)}return this._renderer.drawBuffersScaled(g,a,a,a),this},d.RendererGL.prototype.point=function(a,b,c){return console.log("point not yet implemented in webgl"),this},d.RendererGL.prototype.triangle=function(a){var b=a[0],c=a[1],e=a[2],f=a[3],g=a[4],h=a[5],i="tri";if(!this.geometryInHash(i)){var j=function(){var a=[];a.push(new d.Vector(0,0,0)),a.push(new d.Vector(0,1,0)),a.push(new d.Vector(1,0,0)),this.strokeIndices=[[0,1],[1,2],[2,0]],this.vertices=a,this.faces=[[0,1,2]],this.uvs=[0,0,0,1,1,1]},k=new d.Geometry(1,1,j);k._makeTriangleEdges()._edgesToVertices(),k.computeNormals(),this.createBuffers(i,k)}var l=this.uMVMatrix.copy();try{var m=new d.Matrix([e-b,f-c,0,0,g-b,h-c,0,0,0,0,1,0,b,c,0,1]).mult(this.uMVMatrix);this.uMVMatrix=m,this.drawBuffers(i)}finally{this.uMVMatrix=l}return this},d.RendererGL.prototype.ellipse=function(a){var b=a[0],c=a[1],e=a[2],f=a[3],g=a[4]||24,h="ellipse|"+g;if(!this.geometryInHash(h)){var i=function(){this.vertices.push(new d.Vector(.5,.5,0)),this.uvs.push([.5,.5]);for(var a=0;a<this.detailX;a++){var b=a/this.detailX,c=2*Math.PI*b,e=.5+Math.cos(c)/2,f=.5+Math.sin(c)/2;this.vertices.push(new d.Vector(e,f,0)),this.uvs.push(e,f),this.faces.push([0,(a+1)%this.detailX+1,a+1])}},j=new d.Geometry(g,1,i);j.computeNormals(),g<=50?j._makeTriangleEdges()._edgesToVertices():console.log("Cannot stroke ellipse with more than 50 detailX"),this.createBuffers(h,j)}var k=this.uMVMatrix.copy();try{this.uMVMatrix.translate([b,c,0]),this.uMVMatrix.scale(e,f,1),this.drawBuffers(h)}finally{this.uMVMatrix=k}return this},d.RendererGL.prototype.rect=function(a){var b=this.attributes.perPixelLighting,c=a[0],e=a[1],f=a[2],g=a[3],h=a[4]||(b?1:24),i=a[5]||(b?1:16),j="rect|"+h+"|"+i;if(!this.geometryInHash(j)){var k=function(){for(var a=0;a<=this.detailY;a++)for(var b=a/this.detailY,c=0;c<=this.detailX;c++){var e=c/this.detailX,f=new d.Vector(e,b,0);this.vertices.push(f),this.uvs.push(e,b)}},l=new d.Geometry(h,i,k);l.computeFaces().computeNormals()._makeTriangleEdges()._edgesToVertices(),this.createBuffers(j,l)}var m=this.uMVMatrix.copy();try{this.uMVMatrix.translate([c,e,0]),this.uMVMatrix.scale(f,g,1),this.drawBuffers(j)}finally{this.uMVMatrix=m}return this},d.RendererGL.prototype.quad=function(a,b,c,e,f,g,h,i){var j="quad|"+a+"|"+b+"|"+c+"|"+e+"|"+f+"|"+g+"|"+h+"|"+i;if(!this.geometryInHash(j)){var k=function(){this.vertices.push(new d.Vector(a,b,0)),this.vertices.push(new d.Vector(c,e,0)),this.vertices.push(new d.Vector(f,g,0)),this.vertices.push(new d.Vector(h,i,0)),this.uvs.push(0,0,1,0,1,1,0,1),this.strokeIndices=[[0,1],[1,2],[2,3],[3,0]]},l=new d.Geometry(2,2,k);l.computeNormals()._makeTriangleEdges()._edgesToVertices(),l.faces=[[0,1,2],[2,3,0]],this.createBuffers(j,l)}return this.drawBuffers(j),this},d.RendererGL.prototype.bezier=function(a,b,c,d,e,f,g,h,i,j,k,l){8===arguments.length&&(j=g,k=h,g=e,h=d,d=c,e=d,c=f=i=l=0);var m=this._pInst._bezierDetail||20;this.beginShape();for(var n=0;n<=m;n++){var o=Math.pow(1-n/m,3),p=n/m*3*Math.pow(1-n/m,2),q=3*Math.pow(n/m,2)*(1-n/m),r=Math.pow(n/m,3);this.vertex(a*o+d*p+g*q+j*r,b*o+e*p+h*q+k*r,c*o+f*p+i*q+l*r)}return this.endShape(),this},d.RendererGL.prototype.curve=function(a,b,c,d,e,f,g,h,i,j,k,l){8===arguments.length&&(j=g,k=h,g=e,h=d,d=c,e=d,c=f=i=l=0);var m=this._pInst._curveDetail;this.beginShape();for(var n=0;n<=m;n++){var o=.5*Math.pow(n/m,3),p=.5*Math.pow(n/m,2),q=n/m*.5,r=.5,s=o*(3*d-a-3*g+j)+p*(2*a-5*d+4*g-j)+q*(-a+g)+r*(2*d),t=o*(3*e-b-3*h+k)+p*(2*b-5*e+4*h-k)+q*(-b+h)+r*(2*e),u=o*(3*f-c-3*i+l)+p*(2*c-5*f+4*i-l)+q*(-c+i)+r*(2*f);this.vertex(s,t,u)}return this.endShape(),this},d.RendererGL.prototype.line=function(){return 6===arguments.length?(this.beginShape(),this.vertex(arguments[0],arguments[1],arguments[2]),this.vertex(arguments[3],arguments[4],arguments[5]),this.endShape()):4===arguments.length&&(this.beginShape(),this.vertex(arguments[0],arguments[1],0),this.vertex(arguments[2],arguments[3],0),this.endShape()),this},b.exports=d},{"../core/core":21,"./p5.Geometry":67}]},{},[12])(12)});

/*
p5.play
by Paolo Pedercini/molleindustria, 2015
http://molleindustria.org/
*/

(function(root, factory) {
if (typeof define === 'function' && define.amd)
define('p5.play', ['p5'], function(p5) { (factory(p5)); });
else if (typeof exports === 'object')
factory(require('../p5'));
else
factory(root.p5);
}(this, function(p5) {
/**
 * p5.play is a library for p5.js to facilitate the creation of games and gamelike
 * projects.
 *
 * It provides a flexible Sprite class to manage visual objects in 2D space
 * and features such as animation support, basic collision detection
 * and resolution, mouse and keyboard interactions, and a virtual camera.
 *
 * p5.play is not a box2D-derived physics engine, it doesn't use events, and it's
 * designed to be understood and possibly modified by intermediate programmers.
 *
 * See the examples folder for more info on how to use this library.
 *
 * @module p5.play
 * @submodule p5.play
 * @for p5.play
 * @main
 */

// =============================================================================
//                         initialization
// =============================================================================

// This is the new way to initialize custom p5 properties for any p5 instance.
// The goal is to migrate lazy P5 properties over to this method.
// @see https://github.com/molleindustria/p5.play/issues/46
p5.prototype.registerMethod('init', function p5PlayInit() {
  /**
   * The sketch camera automatically created at the beginning of a sketch.
   * A camera facilitates scrolling and zooming for scenes extending beyond
   * the canvas. A camera has a position, a zoom factor, and the mouse
   * coordinates relative to the view.
   *
   * In p5.js terms the camera wraps the whole drawing cycle in a
   * transformation matrix but it can be disabled anytime during the draw
   * cycle, for example to draw interface elements in an absolute position.
   *
   * @property camera
   * @type {camera}
   */
  this.camera = new Camera(this, 0, 0, 1);
  this.camera.init = false;
});

// This provides a way for us to lazily define properties that
// are global to p5 instances.
//
// Note that this isn't just an optimization: p5 currently provides no
// way for add-ons to be notified when new p5 instances are created, so
// lazily creating these properties is the *only* mechanism available
// to us. For more information, see:
//
// https://github.com/processing/p5.js/issues/1263
function defineLazyP5Property(name, getter) {
  Object.defineProperty(p5.prototype, name, {
    configurable: true,
    enumerable: true,
    get: function() {
      var context = (this instanceof p5 && !this._isGlobal) ? this : window;

      if (typeof(context._p5PlayProperties) === 'undefined') {
        context._p5PlayProperties = {};
      }
      if (!(name in context._p5PlayProperties)) {
        context._p5PlayProperties[name] = getter.call(context);
      }
      return context._p5PlayProperties[name];
    }
  });
}

// This returns a factory function, suitable for passing to
// defineLazyP5Property, that returns a subclass of the given
// constructor that is always bound to a particular p5 instance.
function boundConstructorFactory(constructor) {
  if (typeof(constructor) !== 'function')
    throw new Error('constructor must be a function');

  return function createBoundConstructor() {
    var pInst = this;

    function F() {
      var args = Array.prototype.slice.call(arguments);

      return constructor.apply(this, [pInst].concat(args));
    }
    F.prototype = constructor.prototype;

    return F;
  };
}

// This is a utility that makes it easy to define convenient aliases to
// pre-bound p5 instance methods.
//
// For example:
//
//   var pInstBind = createPInstBinder(pInst);
//
//   var createVector = pInstBind('createVector');
//   var loadImage = pInstBind('loadImage');
//
// The above will create functions createVector and loadImage, which can be
// used similar to p5 global mode--however, they're bound to specific p5
// instances, and can thus be used outside of global mode.
function createPInstBinder(pInst) {
  return function pInstBind(methodName) {
    var method = pInst[methodName];

    if (typeof(method) !== 'function')
      throw new Error('"' + methodName + '" is not a p5 method');
    return method.bind(pInst);
  };
}

// These are utility p5 functions that don't depend on p5 instance state in
// order to work properly, so we'll go ahead and make them easy to
// access without needing to bind them to a p5 instance.
var abs = p5.prototype.abs;
var radians = p5.prototype.radians;
var dist = p5.prototype.dist;
var degrees = p5.prototype.degrees;
var pow = p5.prototype.pow;
var round = p5.prototype.round;


// =============================================================================
//                         p5 additions
// =============================================================================

/**
* A Group containing all the sprites in the sketch.
*
* @property allSprites
* @type {Group}
*/

defineLazyP5Property('allSprites', function() {
  return new p5.prototype.Group();
});

p5.prototype.spriteUpdate = true;

/**
   * A Sprite is the main building block of p5.play:
   * an element able to store images or animations with a set of
   * properties such as position and visibility.
   * A Sprite can have a collider that defines the active area to detect
   * collisions or overlappings with other sprites and mouse interactions.
   *
   * Sprites created using createSprite (the preferred way) are added to the
   * allSprites group and given a depth value that puts it in front of all
   * other sprites.
   *
   * @method createSprite
   * @param {Number} x Initial x coordinate
   * @param {Number} y Initial y coordinate
   * @param {Number} width Width of the placeholder rectangle and of the
   *                       collider until an image or new collider are set
   * @param {Number} height Height of the placeholder rectangle and of the
   *                       collider until an image or new collider are set
   * @return {Object} The new sprite instance
   */

p5.prototype.createSprite = function(x, y, width, height) {
  var s = new Sprite(this, x, y, width, height);
  s.depth = this.allSprites.maxDepth()+1;
  this.allSprites.add(s);
  return s;
};


/**
   * Removes a Sprite from the sketch.
   * The removed Sprite won't be drawn or updated anymore.
   * Equivalent to Sprite.remove()
   *
   * @method removeSprite
   * @param {Object} sprite Sprite to be removed
*/
p5.prototype.removeSprite = function(sprite) {
  sprite.remove();
};

/**
* Updates all the sprites in the sketch (position, animation...)
* it's called automatically at every draw().
* It can be paused by passing a parameter true or false;
* Note: it does not render the sprites.
*
* @method updateSprites
* @param {Boolean} updating false to pause the update, true to resume
*/
p5.prototype.updateSprites = function(upd) {

  if(upd === false)
    this.spriteUpdate = false;
  if(upd === true)
    this.spriteUpdate = true;

  if(this.spriteUpdate)
  for(var i = 0; i<this.allSprites.size(); i++)
  {
    this.allSprites.get(i).update();
  }
};

/**
* Returns all the sprites in the sketch as an array
*
* @method getSprites
* @return {Array} Array of Sprites
*/
p5.prototype.getSprites = function() {

  //draw everything
  if(arguments.length===0)
  {
    return this.allSprites.toArray();
  }
  else
  {
    var arr = [];
    //for every tag
    for(var j=0; j<arguments.length; j++)
    {
      for(var i = 0; i<this.allSprites.size(); i++)
      {
        if(this.allSprites.get(i).isTagged(arguments[j]))
          arr.push(this.allSprites.get(i));
      }
    }

    return arr;
  }

};

/**
* Displays a Group of sprites.
* If no parameter is specified, draws all sprites in the
* sketch.
* The drawing order is determined by the Sprite property "depth"
*
* @method drawSprites
* @param {Group} [group] Group of Sprites to be displayed
*/
p5.prototype.drawSprites = function(group) {
  // If no group is provided, draw the allSprites group.
  group = group || this.allSprites;

  if (typeof group.draw !== 'function')
  {
    throw('Error: with drawSprites you can only draw all sprites or a group');
  }

  group.draw();
};

/**
* Displays a Sprite.
* To be typically used in the main draw function.
*
* @method drawSprite
* @param {Sprite} sprite Sprite to be displayed
*/
p5.prototype.drawSprite = function(sprite) {
  if(sprite)
  sprite.display();
};

/**
* Loads an animation.
* To be typically used in the preload() function of the sketch.
*
* @method loadAnimation
* @param {Sprite} sprite Sprite to be displayed
*/
p5.prototype.loadAnimation = function() {
  return construct(this.Animation, arguments);
};

/**
 * Loads a Sprite Sheet.
 * To be typically used in the preload() function of the sketch.
 *
 * @method loadSpriteSheet
 */
p5.prototype.loadSpriteSheet = function() {
  return construct(this.SpriteSheet, arguments);
};

/**
* Displays an animation.
*
* @method animation
* @param {Animation} anim Animation to be displayed
* @param {Number} x X coordinate
* @param {Number} y Y coordinate
*
*/
p5.prototype.animation = function(anim, x, y) {
  anim.draw(x, y);
};

//variable to detect instant presses
defineLazyP5Property('_p5play', function() {
  return {
    keyStates: {},
    mouseStates: {}
  };
});

var KEY_IS_UP = 0;
var KEY_WENT_DOWN = 1;
var KEY_IS_DOWN = 2;
var KEY_WENT_UP = 3;

/**
* Detects if a key was pressed during the last cycle.
* It can be used to trigger events once, when a key is pressed or released.
* Example: Super Mario jumping.
*
* @method keyWentDown
* @param {Number|String} key Key code or character
* @return {Boolean} True if the key was pressed
*/
p5.prototype.keyWentDown = function(key) {
  return this._isKeyInState(key, KEY_WENT_DOWN);
};


/**
* Detects if a key was released during the last cycle.
* It can be used to trigger events once, when a key is pressed or released.
* Example: Spaceship shooting.
*
* @method keyWentUp
* @param {Number|String} key Key code or character
* @return {Boolean} True if the key was released
*/
p5.prototype.keyWentUp = function(key) {
  return this._isKeyInState(key, KEY_WENT_UP);
};

/**
* Detects if a key is currently pressed
* Like p5 keyIsDown but accepts strings and codes
*
* @method keyDown
* @param {Number|String} key Key code or character
* @return {Boolean} True if the key is down
*/
p5.prototype.keyDown = function(key) {
  return this._isKeyInState(key, KEY_IS_DOWN);
};

/**
 * Detects if a key is in the given state during the last cycle.
 * Helper method encapsulating common key state logic; it may be preferable
 * to call keyDown or other methods directly.
 *
 * @private
 * @method _isKeyInState
 * @param {Number|String} key Key code or character
 * @param {Number} state Key state to check against
 * @return {Boolean} True if the key is in the given state
 */
p5.prototype._isKeyInState = function(key, state) {
  var keyCode;
  var keyStates = this._p5play.keyStates;

  if(typeof key === 'string')
  {
    keyCode = this._keyCodeFromAlias(key);
  }
  else
  {
    keyCode = key;
  }

  //if undefined start checking it
  if(keyStates[keyCode]===undefined)
  {
    if(this.keyIsDown(keyCode))
      keyStates[keyCode] = KEY_IS_DOWN;
    else
      keyStates[keyCode] = KEY_IS_UP;
  }

  return (keyStates[keyCode] === state);
};

/**
* Detects if a mouse button is currently down
* Combines mouseIsPressed and mouseButton of p5
*
* @method mouseDown
* @param {Number} [buttonCode] Mouse button constant LEFT, RIGHT or CENTER
* @return {Boolean} True if the button is down
*/
p5.prototype.mouseDown = function(buttonCode) {
  return this._isMouseButtonInState(buttonCode, KEY_IS_DOWN);
};

/**
* Detects if a mouse button is currently up
* Combines mouseIsPressed and mouseButton of p5
*
* @method mouseUp
* @param {Number} [buttonCode] Mouse button constant LEFT, RIGHT or CENTER
* @return {Boolean} True if the button is up
*/
p5.prototype.mouseUp = function(buttonCode) {
  return this._isMouseButtonInState(buttonCode, KEY_IS_UP);
};

/**
 * Detects if a mouse button was released during the last cycle.
 * It can be used to trigger events once, to be checked in the draw cycle
 *
 * @method mouseWentUp
 * @param {Number} [buttonCode] Mouse button constant LEFT, RIGHT or CENTER
 * @return {Boolean} True if the button was just released
 */
p5.prototype.mouseWentUp = function(buttonCode) {
  return this._isMouseButtonInState(buttonCode, KEY_WENT_UP);
};


/**
 * Detects if a mouse button was pressed during the last cycle.
 * It can be used to trigger events once, to be checked in the draw cycle
 *
 * @method mouseWentDown
 * @param {Number} [buttonCode] Mouse button constant LEFT, RIGHT or CENTER
 * @return {Boolean} True if the button was just pressed
 */
p5.prototype.mouseWentDown = function(buttonCode) {
  return this._isMouseButtonInState(buttonCode, KEY_WENT_DOWN);
};

/**
 * Detects if a mouse button is in the given state during the last cycle.
 * Helper method encapsulating common mouse button state logic; it may be
 * preferable to call mouseWentUp, etc, directly.
 *
 * @private
 * @method _isMouseButtonInState
 * @param {Number} [buttonCode] Mouse button constant LEFT, RIGHT or CENTER
 * @param {Number} state
 * @return {boolean} True if the button was in the given state
 */
p5.prototype._isMouseButtonInState = function(buttonCode, state) {
  var mouseStates = this._p5play.mouseStates;

  if(buttonCode === undefined)
    buttonCode = this.LEFT;

  //undefined = not tracked yet, start tracking
  if(mouseStates[buttonCode]===undefined)
  {
  if(this.mouseIsPressed && this.mouseButton === buttonCode)
    mouseStates[buttonCode] = KEY_IS_DOWN;
  else
    mouseStates[buttonCode] = KEY_IS_UP;
  }

  return (mouseStates[buttonCode] === state);
};


/**
 * An object storing all useful keys for easy access
 * Key.tab = 9
 *
 * @private
 * @property KEY
 * @type {Object}
 */
p5.prototype.KEY = {
    'BACKSPACE': 8,
    'TAB': 9,
    'ENTER': 13,
    'SHIFT': 16,
    'CTRL': 17,
    'ALT': 18,
    'PAUSE': 19,
    'CAPS_LOCK': 20,
    'ESC': 27,
    'SPACE': 32,
    ' ': 32,
    'PAGE_UP': 33,
    'PAGE_DOWN': 34,
    'END': 35,
    'HOME': 36,
    'LEFT_ARROW': 37,
    'LEFT': 37,
    'UP_ARROW': 38,
    'UP': 38,
    'RIGHT_ARROW': 39,
    'RIGHT': 39,
    'DOWN_ARROW': 40,
    'DOWN': 40,
    'INSERT': 45,
    'DELETE': 46,
    '0': 48,
    '1': 49,
    '2': 50,
    '3': 51,
    '4': 52,
    '5': 53,
    '6': 54,
    '7': 55,
    '8': 56,
    '9': 57,
    'A': 65,
    'B': 66,
    'C': 67,
    'D': 68,
    'E': 69,
    'F': 70,
    'G': 71,
    'H': 72,
    'I': 73,
    'J': 74,
    'K': 75,
    'L': 76,
    'M': 77,
    'N': 78,
    'O': 79,
    'P': 80,
    'Q': 81,
    'R': 82,
    'S': 83,
    'T': 84,
    'U': 85,
    'V': 86,
    'W': 87,
    'X': 88,
    'Y': 89,
    'Z': 90,
    '0NUMPAD': 96,
    '1NUMPAD': 97,
    '2NUMPAD': 98,
    '3NUMPAD': 99,
    '4NUMPAD': 100,
    '5NUMPAD': 101,
    '6NUMPAD': 102,
    '7NUMPAD': 103,
    '8NUMPAD': 104,
    '9NUMPAD': 105,
    'MULTIPLY': 106,
    'PLUS': 107,
    'MINUS': 109,
    'DOT': 110,
    'SLASH1': 111,
    'F1': 112,
    'F2': 113,
    'F3': 114,
    'F4': 115,
    'F5': 116,
    'F6': 117,
    'F7': 118,
    'F8': 119,
    'F9': 120,
    'F10': 121,
    'F11': 122,
    'F12': 123,
    'EQUAL': 187,
    'COMMA': 188,
    'SLASH': 191,
    'BACKSLASH': 220
};

/**
 * An object storing deprecated key aliases, which we still support but
 * should be mapped to valid aliases and generate warnings.
 *
 * @private
 * @property KEY_DEPRECATIONS
 * @type {Object}
 */
p5.prototype.KEY_DEPRECATIONS = {
  'MINUT': 'MINUS',
  'COMA': 'COMMA'
};

/**
 * Given a string key alias (as defined in the KEY property above), look up
 * and return the numeric JavaScript key code for that key.  If a deprecated
 * alias is passed (as defined in the KEY_DEPRECATIONS property) it will be
 * mapped to a valid key code, but will also generate a warning about use
 * of the deprecated alias.
 *
 * @private
 * @method _keyCodeFromAlias
 * @param {!string} alias - a case-insensitive key alias
 * @return {number|undefined} a numeric JavaScript key code, or undefined
 *          if no key code matching the given alias is found.
 */
p5.prototype._keyCodeFromAlias = function(alias) {
  alias = alias.toUpperCase();
  if (this.KEY_DEPRECATIONS[alias]) {
    this._warn('Key literal "' + alias + '" is deprecated and may be removed ' +
      'in a future version of p5.play. ' +
      'Please use "' + this.KEY_DEPRECATIONS[alias] + '" instead.');
    alias = this.KEY_DEPRECATIONS[alias];
  }
  return this.KEY[alias];
};

//pre draw: detect keyStates
p5.prototype.readPresses = function() {
  var keyStates = this._p5play.keyStates;
  var mouseStates = this._p5play.mouseStates;

  for (var key in keyStates) {
    if(this.keyIsDown(key)) //if is down
    {
      if(keyStates[key] === KEY_IS_UP)//and was up
        keyStates[key] = KEY_WENT_DOWN;
      else
        keyStates[key] = KEY_IS_DOWN; //now is simply down
    }
    else //if it's up
    {
      if(keyStates[key] === KEY_IS_DOWN)//and was up
        keyStates[key] = KEY_WENT_UP;
      else
        keyStates[key] = KEY_IS_UP; //now is simply down
    }
  }

  //mouse
  for (var btn in mouseStates) {

    if(this.mouseIsPressed && this.mouseButton === btn) //if is down
    {
      if(mouseStates[btn] === KEY_IS_UP)//and was up
        mouseStates[btn] = KEY_WENT_DOWN;
      else
        mouseStates[btn] = KEY_IS_DOWN; //now is simply down
    }
    else //if it's up
    {
      if(mouseStates[btn] === KEY_IS_DOWN)//and was up
        mouseStates[btn] = KEY_WENT_UP;
      else
        mouseStates[btn] = KEY_IS_UP; //now is simply down
    }
  }

};

/**
* Turns the quadTree on or off.
* A quadtree is a data structure used to optimize collision detection.
* It can improve performance when there is a large number of Sprites to be
* checked continuously for overlapping.
*
* p5.play will create and update a quadtree automatically.
*
* @method useQuadTree
* @param {Boolean} use Pass true to enable, false to disable
*/
p5.prototype.useQuadTree = function(use) {

  if(this.quadTree !== undefined)
  {
    if(use === undefined)
      return this.quadTree.active;
    else if(use)
      this.quadTree.active = true;
    else
      this.quadTree.active = false;
  }
  else
    return false;
};

//the actual quadTree
defineLazyP5Property('quadTree', function() {
  return new Quadtree({
    x: 0,
    y: 0,
    width: 0,
    height: 0
  }, 4);
});

/*
//framerate independent delta, doesn't really work
p5.prototype.deltaTime = 1;

var now = Date.now();
var then = Date.now();
var INTERVAL_60 = 0.0166666; //60 fps

function updateDelta() {
then = now;
now = Date.now();
deltaTime = ((now - then) / 1000)/INTERVAL_60; // seconds since last frame
}
*/

/**
   * A Sprite is the main building block of p5.play:
   * an element able to store images or animations with a set of
   * properties such as position and visibility.
   * A Sprite can have a collider that defines the active area to detect
   * collisions or overlappings with other sprites and mouse interactions.
   *
   * To create a Sprite, use
   * {{#crossLink "p5.play/createSprite:method"}}{{/crossLink}}.
   *
   * @class Sprite
   */

// For details on why these docs aren't in a YUIDoc comment block, see:
//
// https://github.com/molleindustria/p5.play/pull/67
//
// @param {Number} x Initial x coordinate
// @param {Number} y Initial y coordinate
// @param {Number} width Width of the placeholder rectangle and of the
//                       collider until an image or new collider are set
// @param {Number} height Height of the placeholder rectangle and of the
//                        collider until an image or new collider are set
function Sprite(pInst, _x, _y, _w, _h) {
  var pInstBind = createPInstBinder(pInst);

  var createVector = pInstBind('createVector');
  var color = pInstBind('color');
  var random = pInstBind('random');
  var print = pInstBind('print');
  var push = pInstBind('push');
  var pop = pInstBind('pop');
  var colorMode = pInstBind('colorMode');
  var noStroke = pInstBind('noStroke');
  var rectMode = pInstBind('rectMode');
  var ellipseMode = pInstBind('ellipseMode');
  var imageMode = pInstBind('imageMode');
  var translate = pInstBind('translate');
  var scale = pInstBind('scale');
  var rotate = pInstBind('rotate');
  var stroke = pInstBind('stroke');
  var strokeWeight = pInstBind('strokeWeight');
  var line = pInstBind('line');
  var noFill = pInstBind('noFill');
  var fill = pInstBind('fill');
  var textAlign = pInstBind('textAlign');
  var textSize = pInstBind('textSize');
  var text = pInstBind('text');
  var rect = pInstBind('rect');
  var cos = pInstBind('cos');
  var sin = pInstBind('sin');
  var atan2 = pInstBind('atan2');

  var quadTree = pInst.quadTree;
  var camera = pInst.camera;


  // These are p5 constants that we'd like easy access to.
  var RGB = p5.prototype.RGB;
  var CENTER = p5.prototype.CENTER;
  var LEFT = p5.prototype.LEFT;
  var BOTTOM = p5.prototype.BOTTOM;

  /**
  * The sprite's position of the sprite as a vector (x,y).
  * @property position
  * @type {p5.Vector}
  */
  this.position = createVector(_x, _y);

  /**
  * The sprite's position at the beginning of the last update as a vector (x,y).
  * @property previousPosition
  * @type {p5.Vector}
  */
  this.previousPosition = createVector(_x, _y);

  /*
  The sprite's position at the end of the last update as a vector (x,y).
  Note: this will differ from position whenever the position is changed
  directly by assignment.
  */
  this.newPosition = createVector(_x, _y);

  //Position displacement on the x coordinate since the last update
  this.deltaX = 0;
  this.deltaY = 0;

  /**
  * The sprite's velocity as a vector (x,y)
  * Velocity is speed broken down to its vertical and horizontal components.
  *
  * @property velocity
  * @type {p5.Vector}
  */
  this.velocity = createVector(0, 0);

  /**
  * Set a limit to the sprite's scalar speed regardless of the direction.
  * The value can only be positive. If set to -1, there's no limit.
  *
  * @property maxSpeed
  * @type {Number}
  * @default -1
  */
  this.maxSpeed = -1;

  /**
  * Friction factor, reduces the sprite's velocity.
  * The friction should be close to 0 (eg. 0.01)
  * 0: no friction
  * 1: full friction
  *
  * @property friction
  * @type {Number}
  * @default 0
  */
  this.friction = 0;

  /**
  * The sprite's current collider.
  * It can either be an Axis Aligned Bounding Box (a non-rotated rectangle)
  * or a circular collider.
  * If the sprite is checked for collision, bounce, overlapping or mouse events the
  * collider is automatically created from the width and height
  * of the sprite or from the image dimension in case of animate sprites
  *
  * You can set a custom collider with Sprite.setCollider
  *
  * @property collider
  * @type {Object}
  */
  this.collider = undefined;

  //internal use
  //"default" - no image or custom collider is specified, use the shape width / height
  //"custom" - specified with setCollider
  //"image" - no collider is set with setCollider and an image is added
  this.colliderType = 'none';

  /**
  * Object containing information about the most recent collision/overlapping
  * To be typically used in combination with Sprite.overlap or Sprite.collide
  * functions.
  * The properties are touching.left, touching.right, touching.top,
  * touching.bottom and are either true or false depending on the side of the
  * collider.
  *
  * @property touching
  * @type {Object}
  */
  this.touching = {};
  this.touching.left = false;
  this.touching.right = false;
  this.touching.top = false;
  this.touching.bottom = false;

  /**
  * The mass determines the velocity transfer when sprites bounce
  * against each other. See Sprite.bounce
  * The higher the mass the least the sprite will be affected by collisions.
  *
  * @property mass
  * @type {Number}
  * @default 1
  */
  this.mass = 1;

  /**
  * If set to true the sprite won't bounce or be displaced by collisions
  * Simulates an infinite mass or an anchored object.
  *
  * @property immovable
  * @type {Boolean}
  * @default false
  */
  this.immovable = false;

  //Coefficient of restitution - velocity lost in the bouncing
  //0 perfectly inelastic , 1 elastic, > 1 hyper elastic

  /**
  * Coefficient of restitution. The velocity lost after bouncing.
  * 1: perfectly elastic, no energy is lost
  * 0: perfectly inelastic, no bouncing
  * less than 1: inelastic, this is the most common in nature
  * greater than 1: hyper elastic, energy is increased like in a pinball bumper
  *
  * @property restitution
  * @type {Number}
  * @default 1
  */
  this.restitution = 1;

  /**
  * Rotation in degrees of the visual element (image or animation)
  * Note: this is not the movement's direction, see getDirection.
  *
  * @property rotation
  * @type {Number}
  * @default 0
  */
  Object.defineProperty(this, 'rotation', {
    enumerable: true,
    get: function() {
      return this._rotation;
    },
    set: function(value) {
      this._rotation = value;
      if (this.rotateToDirection) {
        this.setSpeed(this.getSpeed(), value);
      }
    }
  });

  /**
  * Internal rotation variable (expressed in degrees).
  * Note: external callers access this through the rotation property above.
  *
  * @private
  * @property _rotation
  * @type {Number}
  * @default 0
  */
  this._rotation = 0;

  /**
  * Rotation change in degrees per frame of thevisual element (image or animation)
  * Note: this is not the movement's direction, see getDirection.
  *
  * @property rotationSpeed
  * @type {Number}
  * @default 0
  */
  this.rotationSpeed = 0;


  /**
  * Automatically lock the rotation property of the visual element
  * (image or animation) to the sprite's movement direction and vice versa.
  *
  * @property rotateToDirection
  * @type {Boolean}
  * @default false
  */
  this.rotateToDirection = false;


  /**
  * Determines the rendering order within a group: a sprite with
  * lower depth will appear below the ones with higher depth.
  *
  * Note: drawing a group before another with drawSprites will make
  * its members appear below the second one, like in normal p5 canvas
  * drawing.
  *
  * @property depth
  * @type {Number}
  * @default One more than the greatest existing sprite depth, when calling
  *          createSprite().  When calling new Sprite() directly, depth will
  *          initialize to 0 (not recommended).
  */
  this.depth = 0;

  /**
  * Determines the sprite's scale.
  * Example: 2 will be twice the native size of the visuals,
  * 0.5 will be half. Scaling up may make images blurry.
  *
  * @property scale
  * @type {Number}
  * @default 1
  */
  this.scale = 1;

  var dirX = 1;
  var dirY = 1;

  /**
  * The sprite's visibility.
  *
  * @property visible
  * @type {Boolean}
  * @default true
  */
  this.visible = true;

  /**
  * If set to true sprite will track its mouse state.
  * the properties mouseIsPressed and mouseIsOver will be updated.
  * Note: automatically set to true if the functions
  * onMouseReleased or onMousePressed are set.
  *
  * @property mouseActive
  * @type {Boolean}
  * @default false
  */
  this.mouseActive = false;

  /**
  * True if mouse is on the sprite's collider.
  * Read only.
  *
  * @property mouseIsOver
  * @type {Boolean}
  */
  this.mouseIsOver = false;

  /**
  * True if mouse is pressed on the sprite's collider.
  * Read only.
  *
  * @property mouseIsPressed
  * @type {Boolean}
  */
  this.mouseIsPressed = false;

  /*
  * Width of the sprite's current image.
  * If no images or animations are set it's the width of the
  * placeholder rectangle.
  * Used internally to make calculations and draw the sprite.
  *
  * @private
  * @property _internalWidth
  * @type {Number}
  * @default 100
  */
  this._internalWidth = _w;

  /*
  * Height of the sprite's current image.
  * If no images or animations are set it's the height of the
  * placeholder rectangle.
  * Used internally to make calculations and draw the sprite.
  *
  * @private
  * @property _internalHeight
  * @type {Number}
  * @default 100
  */
  this._internalHeight = _h;

  /*
   * _internalWidth and _internalHeight are used for all p5.play
   * calculations, but width and height can be extended. For example,
   * you may want users to always get and set a scaled width:
      Object.defineProperty(this, 'width', {
        enumerable: true,
        configurable: true,
        get: function() {
          return this._internalWidth * this.scale;
        },
        set: function(value) {
          this._internalWidth = value / this.scale;
        }
      });
   */

  /**
  * Width of the sprite's current image.
  * If no images or animations are set it's the width of the
  * placeholder rectangle.
  *
  * @property width
  * @type {Number}
  * @default 100
  */
  Object.defineProperty(this, 'width', {
    enumerable: true,
    configurable: true,
    get: function() {
      return this._internalWidth;
    },
    set: function(value) {
      this._internalWidth = value;
    }
  });

  if(_w === undefined)
    this.width = 100;
  else
    this.width = _w;

  /**
  * Height of the sprite's current image.
  * If no images or animations are set it's the height of the
  * placeholder rectangle.
  *
  * @property height
  * @type {Number}
  * @default 100
  */
  Object.defineProperty(this, 'height', {
    enumerable: true,
    configurable: true,
    get: function() {
      return this._internalHeight;
    },
    set: function(value) {
      this._internalHeight = value;
    }
  });

  if(_h === undefined)
    this.height = 100;
  else
    this.height = _h;

  /**
  * Unscaled width of the sprite
  * If no images or animations are set it's the width of the
  * placeholder rectangle.
  *
  * @property originalWidth
  * @type {Number}
  * @default 100
  */
  this.originalWidth = this._internalWidth;

  /**
  * Unscaled height of the sprite
  * If no images or animations are set it's the height of the
  * placeholder rectangle.
  *
  * @property originalHeight
  * @type {Number}
  * @default 100
  */
  this.originalHeight = this._internalHeight;

  /**
  * True if the sprite has been removed.
  *
  * @property removed
  * @type {Boolean}
  */
  this.removed = false;

  /**
  * Cycles before self removal.
  * Set it to initiate a countdown, every draw cycle the property is
  * reduced by 1 unit. At 0 it will call a sprite.remove()
  * Disabled if set to -1.
  *
  * @property life
  * @type {Number}
  * @default -1
  */
  this.life = -1;

  /**
  * If set to true, draws an outline of the collider, the depth, and center.
  *
  * @property debug
  * @type {Boolean}
  * @default false
  */
  this.debug = false;

  /**
  * If no image or animations are set this is color of the
  * placeholder rectangle
  *
  * @property shapeColor
  * @type {color}
  */
  this.shapeColor = color(random(255), random(255), random(255));

  /**
  * Groups the sprite belongs to, including allSprites
  *
  * @property groups
  * @type {Array}
  */
  this.groups = [];

  var animations = {};

  //The current animation's label.
  var currentAnimation = '';

  /**
  * Reference to the current animation.
  *
  * @property animation
  * @type {Animation}
  */
  this.animation = undefined;

  /*
   * @private
   * Keep animation properties in sync with how the animation changes.
   */
  this._syncAnimationSizes = function() {
    //has an animation but the collider is still default
    //the animation wasn't loaded. if the animation is not a 1x1 image
    //it means it just finished loading
    if(this.colliderType === 'default' &&
      animations[currentAnimation].getWidth() !== 1 && animations[currentAnimation].getHeight() !== 1)
    {
      this.collider = this.getBoundingBox();
      this.colliderType = 'image';
      this._internalWidth = animations[currentAnimation].getWidth()*abs(this._getScaleX());
      this._internalHeight = animations[currentAnimation].getHeight()*abs(this._getScaleY());
      //quadTree.insert(this);
    }

    //update size and collider
    if(animations[currentAnimation].frameChanged || this.width === undefined || this.height === undefined)
    {
      //this.collider = this.getBoundingBox();
      this._internalWidth = animations[currentAnimation].getWidth()*abs(this._getScaleX());
      this._internalHeight = animations[currentAnimation].getHeight()*abs(this._getScaleY());
    }
  };

  /**
  * Updates the sprite.
  * Called automatically at the beginning of the draw cycle.
  *
  * @method update
  */
  this.update = function() {

    if(!this.removed)
    {
      //if there has been a change somewhere after the last update
      //the old position is the last position registered in the update
      if(this.newPosition !== this.position)
        this.previousPosition = createVector(this.newPosition.x, this.newPosition.y);
      else
        this.previousPosition = createVector(this.position.x, this.position.y);

      this.velocity.x *= 1 - this.friction;
      this.velocity.y *= 1 - this.friction;

      if(this.maxSpeed !== -1)
        this.limitSpeed(this.maxSpeed);

      if(this.rotateToDirection && this.velocity.mag() > 0)
        this._rotation = this.getDirection();

      this.rotation += this.rotationSpeed;

      this.position.x += this.velocity.x;
      this.position.y += this.velocity.y;

      this.newPosition = createVector(this.position.x, this.position.y);

      this.deltaX = this.position.x - this.previousPosition.x;
      this.deltaY = this.position.y - this.previousPosition.y;

      //if there is an animation
      if(animations[currentAnimation])
      {
        //update it
        animations[currentAnimation].update();

        this._syncAnimationSizes();
      }

      //a collider is created either manually with setCollider or
      //when I check this sprite for collisions or overlaps
      if(this.collider)
      {
        if(this.collider instanceof AABB)
        {
        //scale / rotate collider
        var t;
        if (pInst._angleMode === pInst.RADIANS) {
          t = radians(this.rotation);
        } else {
          t = this.rotation;
        }

        if(this.colliderType === 'custom')
          {
          this.collider.extents.x = this.collider.originalExtents.x * abs(this._getScaleX()) * abs(cos(t)) +
          this.collider.originalExtents.y * abs(this._getScaleY()) * abs(sin(t));

          this.collider.extents.y = this.collider.originalExtents.x * abs(this._getScaleX()) * abs(sin(t)) +
          this.collider.originalExtents.y * abs(this._getScaleY()) * abs(cos(t));
          }
        else if(this.colliderType === 'default')
          {
          this.collider.extents.x = this._internalWidth * abs(this._getScaleX()) * abs(cos(t)) +
          this._internalHeight * abs(this._getScaleY()) * abs(sin(t));
          this.collider.extents.y = this._internalWidth * abs(this._getScaleX()) * abs(sin(t)) +
          this._internalHeight * abs(this._getScaleY()) * abs(cos(t));
          }
        else if(this.colliderType === 'image')
          {
          this.collider.extents.x = this._internalWidth * abs(cos(t)) +
          this._internalHeight * abs(sin(t));

          this.collider.extents.y = this._internalWidth * abs(sin(t)) +
          this._internalHeight * abs(cos(t));
          }
        }

        if(this.collider instanceof CircleCollider)
        {
        //print(this.scale);
        this.collider.radius = this.collider.originalRadius * abs(this.scale);
        }

      }//end collider != null

      //mouse actions
      if (this.mouseActive)
      {
        //if no collider set it
          if(!this.collider)
            this.setDefaultCollider();

        this.mouseUpdate();
      }
      else
      {
        if (typeof(this.onMouseOver) === 'function' ||
            typeof(this.onMouseOut) === 'function' ||
            typeof(this.onMousePressed) === 'function' ||
            typeof(this.onMouseReleased) === 'function')
        {
          //if a mouse function is set
          //it's implied we want to have it mouse active so
          //we do this automatically
          this.mouseActive = true;

          //if no collider set it
          if(!this.collider)
            this.setDefaultCollider();

          this.mouseUpdate();
        }
      }

      //self destruction countdown
      if (this.life>0)
        this.life--;
      if (this.life === 0)
        this.remove();
    }
  };//end update

  /**
   * Creates a default collider matching the size of the
   * placeholder rectangle or the bounding box of the image.
   *
   * @method setDefaultCollider
   */
  this.setDefaultCollider = function() {

    //if has animation get the animation bounding box
    //working only for preloaded images
    if(animations[currentAnimation] && (animations[currentAnimation].getWidth() !== 1 && animations[currentAnimation].getHeight() !== 1))
    {
      this.collider = this.getBoundingBox();
      this._internalWidth = animations[currentAnimation].getWidth()*abs(this._getScaleX());
      this._internalHeight = animations[currentAnimation].getHeight()*abs(this._getScaleY());
      //quadTree.insert(this);
      this.colliderType = 'image';
      //print("IMAGE COLLIDER ADDED");
    }
    else if(animations[currentAnimation] && animations[currentAnimation].getWidth() === 1 && animations[currentAnimation].getHeight() === 1)
    {
    //animation is still loading
    //print("wait");
    }
    else //get the with and height defined at the creation
    {
      this.collider = new AABB(pInst, this.position, createVector(this._internalWidth, this._internalHeight));
      //quadTree.insert(this);
      this.colliderType = 'default';
    }

    pInst.quadTree.insert(this);
  };

  /**
   * Updates the sprite mouse states and triggers the mouse events:
   * onMouseOver, onMouseOut, onMousePressed, onMouseReleased
   *
   * @method mouseUpdate
   */
  this.mouseUpdate = function() {

    var mouseWasOver = this.mouseIsOver;
    var mouseWasPressed = this.mouseIsPressed;

    this.mouseIsOver = false;
    this.mouseIsPressed = false;

    var mousePosition;

    if(camera.active)
      mousePosition = createVector(camera.mouseX, camera.mouseY);
    else
      mousePosition = createVector(pInst.mouseX, pInst.mouseY);

      //rollover
      if(this.collider)
      {

        if (this.collider instanceof CircleCollider)
        {
          if (dist(mousePosition.x, mousePosition.y, this.collider.center.x, this.collider.center.y) < this.collider.radius)
            this.mouseIsOver = true;
        } else if (this.collider instanceof AABB)
        {
          if (mousePosition.x > this.collider.left() &&
              mousePosition.y > this.collider.top() &&
              mousePosition.x < this.collider.right() &&
              mousePosition.y < this.collider.bottom())
          {
            this.mouseIsOver = true;
          }
        }

        //global p5 var
        if(this.mouseIsOver && pInst.mouseIsPressed)
          this.mouseIsPressed = true;

        //event change - call functions
        if(!mouseWasOver && this.mouseIsOver && this.onMouseOver !== undefined)
          if(typeof(this.onMouseOver) === 'function')
            this.onMouseOver.call(this, this);
          else
            print('Warning: onMouseOver should be a function');

        if(mouseWasOver && !this.mouseIsOver && this.onMouseOut !== undefined)
          if(typeof(this.onMouseOut) === 'function')
            this.onMouseOut.call(this, this);
          else
            print('Warning: onMouseOut should be a function');

        if(!mouseWasPressed && this.mouseIsPressed && this.onMousePressed !== undefined)
          if(typeof(this.onMousePressed) === 'function')
            this.onMousePressed.call(this, this);
          else
            print('Warning: onMousePressed should be a function');

        if(mouseWasPressed && !pInst.mouseIsPressed && !this.mouseIsPressed && this.onMouseReleased !== undefined)
          if(typeof(this.onMouseReleased) === 'function')
            this.onMouseReleased.call(this, this);
          else
            print('Warning: onMouseReleased should be a function');

      }

  };

  /**
  * Sets a collider for the sprite.
  *
  * In p5.play a Collider is an invisible circle or rectangle
  * that can have any size or position relative to the sprite and which
  * will be used to detect collisions and overlapping with other sprites,
  * or the mouse cursor.
  *
  * If the sprite is checked for collision, bounce, overlapping or mouse events
  * a collider is automatically created from the width and height parameter
  * passed at the creation of the sprite or the from the image dimension in case
  * of animated sprites.
  *
  * Often the image bounding box is not appropriate as the active area for
  * collision detection so you can set a circular or rectangular sprite with
  * different dimensions and offset from the sprite's center.
  *
  * There are four ways to call this method:
  *
  * 1. setCollider("rectangle")
  * 2. setCollider("rectangle", offsetX, offsetY, width, height)
  * 3. setCollider("circle")
  * 4. setCollider("circle", offsetX, offsetY, radius)
  *
  * @method setCollider
  * @param {String} type Either "rectangle" or "circle"
  * @param {Number} offsetX Collider x position from the center of the sprite
  * @param {Number} offsetY Collider y position from the center of the sprite
  * @param {Number} width Collider width or radius
  * @param {Number} height Collider height
  * @throws {TypeError} if given invalid parameters.
  */
  this.setCollider = function(type, offsetX, offsetY, width, height) {
    if (!(type === 'rectangle' || type === 'circle')) {
      throw new TypeError('setCollider expects the first argument to be either "circle" or "rectangle"');
    } else if (type === 'circle' && arguments.length > 1 && arguments.length < 4) {
      throw new TypeError('Usage: setCollider("circle") or setCollider("circle", offsetX, offsetY, radius)');
    } else if (type === 'circle' && arguments.length > 4) {
      pInst._warn('Extra parameters to setCollider were ignored. Usage: setCollider("circle") or setCollider("circle", offsetX, offsetY, radius)');
    } else if (type === 'rectangle' && arguments.length > 1 && arguments.length < 5) {
      throw new TypeError('Usage: setCollider("rectangle") or setCollider("rectangle", offsetX, offsetY, width, height)');
    } else if (type === 'rectangle' && arguments.length > 5) {
      pInst._warn('Extra parameters to setCollider were ignored. Usage: setCollider("rectangle") or setCollider("rectangle", offsetX, offsetY, width, height)');
    }

    this.colliderType = 'custom';

    var v = createVector(offsetX, offsetY);
    if (type === 'rectangle' && arguments.length === 1) {
      this.collider = new AABB(pInst, this.position, createVector(this.width, this.height));
    } else if (type === 'rectangle' && arguments.length >= 5) {
      this.collider = new AABB(pInst, this.position, createVector(width, height), v);
    } else if (type === 'circle' && arguments.length === 1) {
      this.collider = new CircleCollider(pInst, this.position, Math.floor(Math.max(this.width, this.height) / 2));
    } else if (type === 'circle' && arguments.length >= 4) {
      this.collider = new CircleCollider(pInst, this.position, width, v);
    }

    quadTree.insert(this);
  };

  /**
   * Returns a the bounding box of the current image
   * @method getBoundingBox
   */
  this.getBoundingBox = function() {

    var w = animations[currentAnimation].getWidth()*abs(this._getScaleX());
    var h = animations[currentAnimation].getHeight()*abs(this._getScaleY());

    //if the bounding box is 1x1 the image is not loaded
    //potential issue with actual 1x1 images
    if(w === 1 && h === 1) {
      //not loaded yet
      return new AABB(pInst, this.position, createVector(w, h));
    }
    else {
      return new AABB(pInst, this.position, createVector(w, h));
    }
  };

  /**
  * Sets the sprite's horizontal mirroring.
  * If 1 the images displayed normally
  * If -1 the images are flipped horizontally
  * If no argument returns the current x mirroring
  *
  * @method mirrorX
  * @param {Number} dir Either 1 or -1
  * @return {Number} Current mirroring if no parameter is specified
  */
  this.mirrorX = function(dir) {
    if(dir === 1 || dir === -1)
      dirX = dir;
    else
      return dirX;
  };

  /**
  * Sets the sprite's vertical mirroring.
  * If 1 the images displayed normally
  * If -1 the images are flipped vertically
  * If no argument returns the current y mirroring
  *
  * @method mirrorY
  * @param {Number} dir Either 1 or -1
  * @return {Number} Current mirroring if no parameter is specified
  */
  this.mirrorY = function(dir) {
    if(dir === 1 || dir === -1)
      dirY = dir;
    else
      return dirY;
  };

  /*
   * Returns the value the sprite should be scaled in the X direction.
   * Used to calculate rendering and collisions.
   * @private
   */
  this._getScaleX = function()
  {
    return this.scale;
  };

  /*
   * Returns the value the sprite should be scaled in the Y direction.
   * Used to calculate rendering and collisions.
   * @private
   */
  this._getScaleY = function()
  {
    return this.scale;
  };

  /**
   * Manages the positioning, scale and rotation of the sprite
   * Called automatically, it should not be overridden
   * @private
   * @final
   * @method display
   */
  this.display = function()
  {
    if (this.visible && !this.removed)
    {
      push();
      colorMode(RGB);

      noStroke();
      rectMode(CENTER);
      ellipseMode(CENTER);
      imageMode(CENTER);

      translate(this.position.x, this.position.y);
      scale(this._getScaleX()*dirX, this._getScaleY()*dirY);
      if (pInst._angleMode === pInst.RADIANS) {
        rotate(radians(this.rotation));
      } else {
        rotate(this.rotation);
      }
      this.draw();
      //draw debug info
      pop();


      if(this.debug)
      {
        push();
        //draw the anchor point
        stroke(0, 255, 0);
        strokeWeight(1);
        line(this.position.x-10, this.position.y, this.position.x+10, this.position.y);
        line(this.position.x, this.position.y-10, this.position.x, this.position.y+10);
        noFill();

        //depth number
        noStroke();
        fill(0, 255, 0);
        textAlign(LEFT, BOTTOM);
        textSize(16);
        text(this.depth+'', this.position.x+4, this.position.y-2);

        noFill();
        stroke(0, 255, 0);

        //bounding box
        if(this.collider !== undefined)
        {
          this.collider.draw();
        }
        pop();
      }

    }
  };


  /**
  * Manages the visuals of the sprite.
  * It can be overridden with a custom drawing function.
  * The 0,0 point will be the center of the sprite.
  * Example:
  * sprite.draw = function() { ellipse(0,0,10,10) }
  * Will display the sprite as circle.
  *
  * @method draw
  */
  this.draw = function()
  {
    if(currentAnimation !== '' && animations)
    {
      if(animations[currentAnimation])
        animations[currentAnimation].draw(0, 0, 0);
    }
    else
    {
      noStroke();
      fill(this.shapeColor);
      rect(0, 0, this._internalWidth, this._internalHeight);
    }
  };

  /**
   * Removes the Sprite from the sketch.
   * The removed Sprite won't be drawn or updated anymore.
   *
   * @method remove
   */
  this.remove = function() {
    this.removed = true;

    quadTree.removeObject(this);

    //when removed from the "scene" also remove all the references in all the groups
    while (this.groups.length > 0) {
      this.groups[0].remove(this);
    }
  };

  /**
  * Sets the velocity vector.
  *
  * @method setVelocity
  * @param {Number} x X component
  * @param {Number} y Y component
  */
  this.setVelocity = function(x, y) {
    this.velocity.x = x;
    this.velocity.y = y;
  };

  /**
  * Calculates the scalar speed.
  *
  * @method getSpeed
  * @return {Number} Scalar speed
  */
  this.getSpeed = function() {
    return this.velocity.mag();
  };

  /**
  * Calculates the movement's direction in degrees.
  *
  * @method getDirection
  * @return {Number} Angle in degrees
  */
  this.getDirection = function() {

    var direction = atan2(this.velocity.y, this.velocity.x);

    if(isNaN(direction))
      direction = 0;

    // Unlike Math.atan2, the atan2 method above will return degrees if
    // the current p5 angleMode is DEGREES, and radians if the p5 angleMode is
    // RADIANS.  This method should always return degrees (for now).
    // See https://github.com/molleindustria/p5.play/issues/94
    if (pInst._angleMode === pInst.RADIANS) {
      direction = degrees(direction);
    }

    return direction;
  };

  /**
  * Adds the sprite to an existing group
  *
  * @method addToGroup
  * @param {Object} group
  */
  this.addToGroup = function(group) {
    if(group instanceof Array)
      group.add(this);
    else
      print('addToGroup error: '+group+' is not a group');
  };

  /**
  * Limits the scalar speed.
  *
  * @method limitSpeed
  * @param {Number} max Max speed: positive number
  */
  this.limitSpeed = function(max) {

    //update linear speed
    var speed = this.getSpeed();

    if(abs(speed)>max)
    {
      //find reduction factor
      var k = max/abs(speed);
      this.velocity.x *= k;
      this.velocity.y *= k;
    }
  };

  /**
  * Set the speed and direction of the sprite.
  * The action overwrites the current velocity.
  * If direction is not supplied, the current direction is maintained.
  * If direction is not supplied and there is no current velocity, the current
  * rotation angle used for the direction.
  *
  * @method setSpeed
  * @param {Number}  speed Scalar speed
  * @param {Number}  [angle] Direction in degrees
  */
  this.setSpeed = function(speed, angle) {
    var a;
    if (typeof angle === 'undefined') {
      if (this.velocity.x !== 0 || this.velocity.y !== 0) {
        a = pInst.atan2(this.velocity.y, this.velocity.x);
      } else {
        if (pInst._angleMode === pInst.RADIANS) {
          a = radians(this._rotation);
        } else {
          a = this._rotation;
        }
      }
    } else {
      if (pInst._angleMode === pInst.RADIANS) {
        a = radians(angle);
      } else {
        a = angle;
      }
    }
    this.velocity.x = cos(a)*speed;
    this.velocity.y = sin(a)*speed;
  };

  /**
  * Pushes the sprite in a direction defined by an angle.
  * The force is added to the current velocity.
  *
  * @method addSpeed
  * @param {Number}  speed Scalar speed to add
  * @param {Number}  angle Direction in degrees
  */
  this.addSpeed = function(speed, angle) {
    var a;
    if (pInst._angleMode === pInst.RADIANS) {
      a = radians(angle);
    } else {
      a = angle;
    }
    this.velocity.x += cos(a) * speed;
    this.velocity.y += sin(a) * speed;
  };

  /**
  * Pushes the sprite toward a point.
  * The force is added to the current velocity.
  *
  * @method attractionPoint
  * @param {Number}  magnitude Scalar speed to add
  * @param {Number}  pointX Direction x coordinate
  * @param {Number}  pointY Direction y coordinate
  */
  this.attractionPoint = function(magnitude, pointX, pointY) {
    var angle = atan2(pointY-this.position.y, pointX-this.position.x);
    this.velocity.x += cos(angle) * magnitude;
    this.velocity.y += sin(angle) * magnitude;
  };


  /**
  * Adds an image to the sprite.
  * An image will be considered a one-frame animation.
  * The image should be preloaded in the preload() function using p5 loadImage.
  * Animations require a identifying label (string) to change them.
  * The image is stored in the sprite but not necessarily displayed
  * until Sprite.changeAnimation(label) is called
  *
  * Usages:
  * - sprite.addImage(label, image);
  * - sprite.addImage(image);
  *
  * If only an image is passed no label is specified
  *
  * @method addImage
  * @param {String|p5.Image} label Label or image
  * @param {p5.Image} [img] Image
  */
  this.addImage = function()
  {
    if(typeof arguments[0] === 'string' && arguments[1] instanceof p5.Image)
      this.addAnimation(arguments[0], arguments[1]);
    else if(arguments[0] instanceof p5.Image)
      this.addAnimation('normal', arguments[0]);
    else
      throw('addImage error: allowed usages are <image> or <label>, <image>');
  };

  /**
  * Adds an animation to the sprite.
  * The animation should be preloaded in the preload() function
  * using loadAnimation.
  * Animations require a identifying label (string) to change them.
  * Animations are stored in the sprite but not necessarily displayed
  * until Sprite.changeAnimation(label) is called.
  *
  * Usage:
  * - sprite.addAnimation(label, animation);
  *
  * Alternative usages. See Animation for more information on file sequences:
  * - sprite.addAnimation(label, firstFrame, lastFrame);
  * - sprite.addAnimation(label, frame1, frame2, frame3...);
  *
  * @method addAnimation
  * @param {String} label Animation identifier
  * @param {Animation} animation The preloaded animation
  */
  this.addAnimation = function(label)
  {
    var anim;

    if(typeof label !== 'string')
    {
      print('Sprite.addAnimation error: the first argument must be a label (String)');
      return -1;
    }
    else if(arguments.length < 2)
    {
      print('addAnimation error: you must specify a label and n frame images');
      return -1;
    }
    else if(arguments[1] instanceof Animation)
    {

      var sourceAnimation = arguments[1];

      var newAnimation = sourceAnimation.clone();

      animations[label] = newAnimation;

      if(currentAnimation === '')
      {
        currentAnimation = label;
        this.animation = newAnimation;
      }

      newAnimation.isSpriteAnimation = true;

      this._internalWidth = newAnimation.getWidth()*abs(this._getScaleX());
      this._internalHeight = newAnimation.getHeight()*abs(this._getScaleY());

      return newAnimation;
    }
    else
    {
      var animFrames = [];
      for(var i=1; i<arguments.length; i++)
        animFrames.push(arguments[i]);

      anim = construct(pInst.Animation, animFrames);
      animations[label] = anim;

      if(currentAnimation === '')
      {
        currentAnimation = label;
        this.animation = anim;
      }
      anim.isSpriteAnimation = true;

      this._internalWidth = anim.getWidth()*abs(this._getScaleX());
      this._internalHeight = anim.getHeight()*abs(this._getScaleY());

      return anim;
    }

  };

  /**
  * Changes the displayed image/animation.
  * Equivalent to changeAnimation
  *
  * @method changeImage
  * @param {String} label Image/Animation identifier
  */
  this.changeImage = function(label) {
    this.changeAnimation(label);
  };

   /**
  * Returns the label of the current animation
  *
  * @method getAnimationLabel
  * @return {String} label Image/Animation identifier
  */
  this.getAnimationLabel = function() {
    return currentAnimation;
  };

  /**
  * Changes the displayed animation.
  * See Animation for more control over the sequence.
  *
  * @method changeAnimation
  * @param {String} label Animation identifier
  */
  this.changeAnimation = function(label) {
    if(!animations[label])
      print('changeAnimation error: no animation labeled '+label);
    else
    {
      currentAnimation = label;
      this.animation = animations[label];
    }
  };

  /**
  * Checks if the given point corresponds to a transparent pixel
  * in the sprite's current image. It can be used to check a point collision
  * against only the visible part of the sprite.
  *
  * @method overlapPixel
  * @param {Number} pointX x coordinate of the point to check
  * @param {Number} pointY y coordinate of the point to check
  * @return {Boolean} result True if non-transparent
  */
  this.overlapPixel = function(pointX, pointY) {
    var point = createVector(pointX, pointY);

    var img = this.animation.getFrameImage();

    //convert point to img relative position
    point.x -= this.position.x-img.width/2;
    point.y -= this.position.y-img.height/2;

    //out of the image entirely
    if(point.x<0 || point.x>img.width || point.y<0 || point.y>img.height)
      return false;
    else if(this.rotation === 0 && this.scale === 1)
    {
      //true if full opacity
      var values = img.get(point.x, point.y);
      return values[3] === 255;
    }
    else
    {
      print('Error: overlapPixel doesn\'t work with scaled or rotated sprites yet');
      //offscreen printing to be implemented bleurch
      return false;
    }
  };

  /**
  * Checks if the given point is inside the sprite's collider.
  *
  * @method overlapPoint
  * @param {Number} pointX x coordinate of the point to check
  * @param {Number} pointY y coordinate of the point to check
  * @return {Boolean} result True if inside
  */
  this.overlapPoint = function(pointX, pointY) {
    var point = createVector(pointX, pointY);

    if(!this.collider)
      this.setDefaultCollider();

    if(this.collider !== undefined)
    {
      if(this.collider instanceof AABB)
        return (point.x > this.collider.left() && point.x < this.collider.right() && point.y > this.collider.top() && point.y < this.collider.bottom());
      if(this.collider instanceof CircleCollider)
      {
        var sqRadius = this.collider.radius * this.collider.radius;
        var sqDist = pow(this.collider.center.x - point.x, 2) + pow(this.collider.center.y - point.y, 2);
        return sqDist<sqRadius;
      }
      else
        return false;
    }
    else
      return false;

  };


  /**
  * Checks if the the sprite is overlapping another sprite or a group.
  * The check is performed using the colliders. If colliders are not set
  * they will be created automatically from the image/animation bounding box.
  *
  * A callback function can be specified to perform additional operations
  * when the overlap occours.
  * If the target is a group the function will be called for each single
  * sprite overlapping. The parameter of the function are respectively the
  * current sprite and the colliding sprite.
  *
  * @example
  *     sprite.overlap(otherSprite, explosion);
  *
  *     function explosion(spriteA, spriteB) {
  *       spriteA.remove();
  *       spriteB.score++;
  *     }
  *
  * @method overlap
  * @param {Object} target Sprite or group to check against the current one
  * @param {Function} [callback] The function to be called if overlap is positive
  * @return {Boolean} True if overlapping
  */
  this.overlap = function(target, callback) {
    //if(this.collider instanceof AABB && target.collider instanceof AABB)
    return this.AABBops('overlap', target, callback);
  };

  /**
  * Checks if the the sprite is overlapping another sprite or a group.
  * If the overlap is positive the current sprite will be displace by
  * the colliding one in the closest non-overlapping position.
  *
  * The check is performed using the colliders. If colliders are not set
  * they will be created automatically from the image/animation bounding box.
  *
  * A callback function can be specified to perform additional operations
  * when the collision occours.
  * If the target is a group the function will be called for each single
  * sprite colliding. The parameter of the function are respectively the
  * current sprite and the colliding sprite.
  *
  * @example
  *     sprite.collide(otherSprite, explosion);
  *
  *     function explosion(spriteA, spriteB) {
  *       spriteA.remove();
  *       spriteB.score++;
  *     }
  *
  * @method collide
  * @param {Object} target Sprite or group to check against the current one
  * @param {Function} [callback] The function to be called if overlap is positive
  * @return {Boolean} True if overlapping
  */
  this.collide = function(target, callback) {
    //if(this.collider instanceof AABB && target.collider instanceof AABB)
    return this.AABBops('collide', target, callback);
  };

  /**
  * Checks if the the sprite is overlapping another sprite or a group.
  * If the overlap is positive the current sprite will displace
  * the colliding one to the closest non-overlapping position.
  *
  * The check is performed using the colliders. If colliders are not set
  * they will be created automatically from the image/animation bounding box.
  *
  * A callback function can be specified to perform additional operations
  * when the collision occours.
  * If the target is a group the function will be called for each single
  * sprite colliding. The parameter of the function are respectively the
  * current sprite and the colliding sprite.
  *
  * @example
  *     sprite.displace(otherSprite, explosion);
  *
  *     function explosion(spriteA, spriteB) {
  *       spriteA.remove();
  *       spriteB.score++;
  *     }
  *
  * @method displace
  * @param {Object} target Sprite or group to check against the current one
  * @param {Function} [callback] The function to be called if overlap is positive
  * @return {Boolean} True if overlapping
  */
  this.displace = function(target, callback) {
    return this.AABBops('displace', target, callback);
  };

  /**
  * Checks if the the sprite is overlapping another sprite or a group.
  * If the overlap is positive the sprites will bounce affecting each
  * other's trajectories depending on their .velocity, .mass and .restitution
  *
  * The check is performed using the colliders. If colliders are not set
  * they will be created automatically from the image/animation bounding box.
  *
  * A callback function can be specified to perform additional operations
  * when the collision occours.
  * If the target is a group the function will be called for each single
  * sprite colliding. The parameter of the function are respectively the
  * current sprite and the colliding sprite.
  *
  * @example
  *     sprite.bounce(otherSprite, explosion);
  *
  *     function explosion(spriteA, spriteB) {
  *       spriteA.remove();
  *       spriteB.score++;
  *     }
  *
  * @method bounce
  * @param {Object} target Sprite or group to check against the current one
  * @param {Function} [callback] The function to be called if overlap is positive
  * @return {Boolean} True if overlapping
  */
  this.bounce = function(target, callback) {
    return this.AABBops('bounce', target, callback);
  };

  // Internal collision detection function. Do not use directly.
  this.AABBops = function(type, target, callback) {

    this.touching.left = false;
    this.touching.right = false;
    this.touching.top = false;
    this.touching.bottom = false;

    var result = false;

    //if single sprite turn into array anyway
    var others = [];

    if(target instanceof Sprite)
      others.push(target);
    else if(target instanceof Array)
    {
      if(quadTree !== undefined && quadTree.active)
        others = quadTree.retrieveFromGroup( this, target);

      if(others.length === 0)
        others = target;

    }
    else
      throw('Error: overlap can only be checked between sprites or groups');

    for(var i=0; i<others.length; i++)
      if(this !== others[i] && !this.removed) //you can check collisions within the same group but not on itself
      {
        var displacement;
        var other = others[i];

        if(this.collider === undefined)
          this.setDefaultCollider();

        if(other.collider === undefined)
          other.setDefaultCollider();

        /*
        if(this.colliderType=="default" && animations[currentAnimation]!=null)
        {
          print("busted");
          return false;
        }*/
        if(this.collider !== undefined && other.collider !== undefined)
        {
        if(type === 'overlap') {
            var over;

            //if the other is a circle I calculate the displacement from here
            if(this.collider instanceof CircleCollider)
                over = other.collider.overlap(this.collider);
            else
                over = this.collider.overlap(other.collider);

            if(over)
            {

              result = true;

              if(callback !== undefined && typeof callback === 'function')
                callback.call(this, this, other);
            }
          }
        else if(type === 'collide' || type === 'displace' || type === 'bounce')
          {
            displacement = createVector(0, 0);

            //if the sum of the speed is more than the collider i may
            //have a tunnelling problem
            var tunnelX = abs(this.velocity.x-other.velocity.x) >= other.collider.extents.x/2 && round(this.deltaX - this.velocity.x) === 0;

            var tunnelY = abs(this.velocity.y-other.velocity.y) >= other.collider.size().y/2 && round(this.deltaY - this.velocity.y) === 0;


            if(tunnelX || tunnelY)
            {
              //instead of using the colliders I use the bounding box
              //around the previous position and current position
              //this is regardless of the collider type

              //the center is the average of the coll centers
              var c = createVector(
                (this.position.x+this.previousPosition.x)/2,
                (this.position.y+this.previousPosition.y)/2);

              //the extents are the distance between the coll centers
              //plus the extents of both
              var e = createVector(
                abs(this.position.x -this.previousPosition.x) + this.collider.extents.x,
                abs(this.position.y -this.previousPosition.y) + this.collider.extents.y);

              var bbox = new AABB(pInst, c, e, this.collider.offset);

              //bbox.draw();

              if(bbox.overlap(other.collider))
              {
                if(tunnelX) {

                  //entering from the right
                  if(this.velocity.x < 0)
                    displacement.x = other.collider.right() - this.collider.left() + 1;
                  else if(this.velocity.x > 0 )
                    displacement.x = other.collider.left() - this.collider.right() -1;
                  }

                if(tunnelY) {
                  //from top
                  if(this.velocity.y > 0)
                    displacement.y = other.collider.top() - this.collider.bottom() - 1;
                  else if(this.velocity.y < 0 )
                    displacement.y = other.collider.bottom() - this.collider.top() + 1;

                  }

              }//end overlap

            }
            else //non tunnel overlap
            {

              //if the other is a circle I calculate the displacement from here
              //and reverse it
              if(this.collider instanceof CircleCollider)
                {
                displacement = other.collider.collide(this.collider).mult(-1);
                }
              else
                displacement = this.collider.collide(other.collider);

            }

            if(displacement.x !== 0 || displacement.y !== 0)
            {
              var newVelX1, newVelY1, newVelX2, newVelY2;

              if (type === 'displace' && !other.immovable) {
                other.position.sub(displacement);
              } else if ((type === 'collide' || type === 'bounce') && !this.immovable) {
                this.position.add(displacement);
                this.previousPosition = createVector(this.position.x, this.position.y);
                this.newPosition = createVector(this.position.x, this.position.y);
              }

              if(displacement.x > 0)
                this.touching.left = true;
              if(displacement.x < 0)
                this.touching.right = true;
              if(displacement.y < 0)
                this.touching.bottom = true;
              if(displacement.y > 0)
                this.touching.top = true;

              if(type === 'bounce')
              {
                if (this.collider instanceof CircleCollider && other.collider instanceof CircleCollider) {
                  var dx1 = p5.Vector.sub(this.position, other.position);
                  var dx2 = p5.Vector.sub(other.position, this.position);
                  var magnitude = dx1.magSq();
                  var totalMass = this.mass + other.mass;
                  var m1 = 0, m2 = 0;
                  if (this.immovable) {
                    m2 = 2;
                  } else if (other.immovable) {
                    m1 = 2;
                  } else {
                    m1 = 2 * other.mass / totalMass;
                    m2 = 2 * this.mass / totalMass;
                  }
                  var newVel1 = dx1.mult(m1 * p5.Vector.sub(this.velocity, other.velocity).dot(dx1) / magnitude);
                  var newVel2 = dx2.mult(m2 * p5.Vector.sub(other.velocity, this.velocity).dot(dx2) / magnitude);

                  this.velocity.sub(newVel1.mult(this.restitution));
                  other.velocity.sub(newVel2.mult(other.restitution));
                }
                else {
                if(other.immovable)
                {
                  newVelX1 = -this.velocity.x+other.velocity.x;
                  newVelY1 = -this.velocity.y+other.velocity.y;
                }
                else
                {
                  newVelX1 = (this.velocity.x * (this.mass - other.mass) + (2 * other.mass * other.velocity.x)) / (this.mass + other.mass);
                  newVelY1 = (this.velocity.y * (this.mass - other.mass) + (2 * other.mass * other.velocity.y)) / (this.mass + other.mass);
                  newVelX2 = (other.velocity.x * (other.mass - this.mass) + (2 * this.mass * this.velocity.x)) / (this.mass + other.mass);
                  newVelY2 = (other.velocity.y * (other.mass - this.mass) + (2 * this.mass * this.velocity.y)) / (this.mass + other.mass);
                }

                //var bothCircles = (this.collider instanceof CircleCollider &&
                //                   other.collider  instanceof CircleCollider);

                //if(this.touching.left || this.touching.right || this.collider instanceof CircleCollider)

                //print(displacement);

                if(abs(displacement.x)>abs(displacement.y))
                {


                  if(!this.immovable)
                  {
                    this.velocity.x = newVelX1*this.restitution;

                  }

                  if(!other.immovable)
                    other.velocity.x = newVelX2*other.restitution;

                }
                //if(this.touching.top || this.touching.bottom || this.collider instanceof CircleCollider)
                if(abs(displacement.x)<abs(displacement.y))
                {

                  if(!this.immovable)
                    this.velocity.y = newVelY1*this.restitution;

                  if(!other.immovable)
                    other.velocity.y = newVelY2*other.restitution;
                }
                }
              }
              //else if(type == "collide")
                //this.velocity = createVector(0,0);

              if(callback !== undefined && typeof callback === 'function')
                callback.call(this, this, other);

              result = true;
            }
          }
        }//end collider exists
      }

    return result;
  };
} //end Sprite class

defineLazyP5Property('Sprite', boundConstructorFactory(Sprite));

/**
   * A camera facilitates scrolling and zooming for scenes extending beyond
   * the canvas. A camera has a position, a zoom factor, and the mouse
   * coordinates relative to the view.
   * The camera is automatically created on the first draw cycle.
   *
   * In p5.js terms the camera wraps the whole drawing cycle in a
   * transformation matrix but it can be disable anytime during the draw
   * cycle for example to draw interface elements in an absolute position.
   *
   * @class Camera
   * @constructor
   * @param {Number} x Initial x coordinate
   * @param {Number} y Initial y coordinate
   * @param {Number} zoom magnification
   **/
function Camera(pInst, x, y, zoom) {
  /**
  * Camera position. Defines the global offset of the sketch.
  *
  * @property position
  * @type {p5.Vector}
  */
  this.position = pInst.createVector(x, y);

  /**
  * Camera zoom. Defines the global scale of the sketch.
  * A scale of 1 will be the normal size. Setting it to 2 will make everything
  * twice the size. .5 will make everything half size.
  *
  * @property zoom
  * @type {Number}
  */
  this.zoom = zoom;

  /**
  * MouseX translated to the camera view.
  * Offsetting and scaling the canvas will not change the sprites' position
  * nor the mouseX and mouseY variables. Use this property to read the mouse
  * position if the camera moved or zoomed.
  *
  * @property mouseX
  * @type {Number}
  */
  this.mouseX = pInst.mouseX;

  /**
  * MouseY translated to the camera view.
  * Offsetting and scaling the canvas will not change the sprites' position
  * nor the mouseX and mouseY variables. Use this property to read the mouse
  * position if the camera moved or zoomed.
  *
  * @property mouseY
  * @type {Number}
  */
  this.mouseY = pInst.mouseY;

  /**
  * True if the camera is active.
  * Read only property. Use the methods Camera.on() and Camera.off()
  * to enable or disable the camera.
  *
  * @property active
  * @type {Boolean}
  */
  this.active = false;

  /**
  * Activates the camera.
  * The canvas will be drawn according to the camera position and scale until
  * Camera.off() is called
  *
  * @method on
  */
  this.on = function() {
    if(!this.active)
    {
      cameraPush.call(pInst);
      this.active = true;
    }
  };

  /**
  * Deactivates the camera.
  * The canvas will be drawn normally, ignoring the camera's position
  * and scale until Camera.on() is called
  *
  * @method off
  */
  this.off = function() {
    if(this.active)
    {
      cameraPop.call(pInst);
      this.active = false;
    }
  };
} //end camera class

defineLazyP5Property('Camera', boundConstructorFactory(Camera));

//called pre draw by default
function cameraPush() {
  var pInst = this;
  var camera = pInst.camera;

  //awkward but necessary in order to have the camera at the center
  //of the canvas by default
  if(!camera.init && camera.position.x === 0 && camera.position.y === 0)
    {
    camera.position.x=pInst.width/2;
    camera.position.y=pInst.height/2;
    camera.init = true;
    }

  camera.mouseX = pInst.mouseX+camera.position.x-pInst.width/2;
  camera.mouseY = pInst.mouseY+camera.position.y-pInst.height/2;

  if(!camera.active)
  {
    camera.active = true;
    pInst.push();
    pInst.scale(camera.zoom);
    pInst.translate(-camera.position.x+pInst.width/2/camera.zoom, -camera.position.y+pInst.height/2/camera.zoom);
  }
}

//called postdraw by default
function cameraPop() {
  var pInst = this;

  if(pInst.camera.active)
  {
    pInst.pop();
    pInst.camera.active = false;
  }
}




/**
   * In p5.play groups are collections of sprites with similar behavior.
   * For example a group may contain all the sprites in the background
   * or all the sprites that "kill" the player.
   *
   * Groups are "extended" arrays and inherit all their properties
   * e.g. group.length
   *
   * Since groups contain only references, a sprite can be in multiple
   * groups and deleting a group doesn't affect the sprites themselves.
   *
   * Sprite.remove() will also remove the sprite from all the groups
   * it belongs to.
   *
   * @class Group
   * @constructor
   */
function Group() {

  //basically extending the array
  var array = [];

  /**
  * Gets the member at index i.
  *
  * @method get
  * @param {Number} i The index of the object to retrieve
  */
  array.get = function(i) {
    return array[i];
  };

  /**
  * Checks if the group contains a sprite.
  *
  * @method contains
  * @param {Sprite} sprite The sprite to search
  * @return {Number} Index or -1 if not found
  */
  array.contains = function(sprite) {
    return this.indexOf(sprite)>-1;
  };

  /**
   * Same as Group.contains
   * @method indexOf
   */
  array.indexOf = function(item) {
    for (var i = 0, len = array.length; i < len; ++i) {
      if (virtEquals(item, array[i])) {
        return i;
      }
    }
    return -1;
  };

  /**
  * Adds a sprite to the group.
  *
  * @method add
  * @param {Sprite} s The sprite to be added
  */
  array.add = function(s) {
    if(!(s instanceof Sprite)) {
      throw('Error: you can only add sprites to a group');
    }

    if (-1 === this.indexOf(s)) {
      array.push(s);
      s.groups.push(this);
    }
  };

  /**
   * Same as group.length
   * @method size
   */
  array.size = function() {
    return array.length;
  };

  /**
  * Removes all the sprites in the group
  * from the scene.
  *
  * @method removeSprites
  */
  array.removeSprites = function() {
    while (array.length > 0) {
      array[0].remove();
    }
  };

  /**
  * Removes all references to the group.
  * Does not remove the actual sprites.
  *
  * @method clear
  */
  array.clear = function() {
    array.length = 0;
  };

  /**
  * Removes a sprite from the group.
  * Does not remove the actual sprite, only the affiliation (reference).
  *
  * @method remove
  * @param {Sprite} item The sprite to be removed
  * @return {Boolean} True if sprite was found and removed
  */
  array.remove = function(item) {
    if(!(item instanceof Sprite)) {
      throw('Error: you can only remove sprites from a group');
    }

    var i, removed = false;
    for (i = array.length - 1; i >= 0; i--) {
      if (array[i] === item) {
        array.splice(i, 1);
        removed = true;
      }
    }

    if (removed) {
      for (i = item.groups.length - 1; i >= 0; i--) {
        if (item.groups[i] === this) {
          item.groups.splice(i, 1);
        }
      }
    }

    return removed;
  };

  /**
   * Returns a copy of the group as standard array.
   * @method toArray
   */
  array.toArray = function() {
    return array.slice(0);
  };

  /**
  * Returns the highest depth in a group
  *
  * @method maxDepth
  * @return {Number} The depth of the sprite drawn on the top
  */
  array.maxDepth = function() {
    if (array.length === 0) {
      return 0;
    }

    return array.reduce(function(maxDepth, sprite) {
      return Math.max(maxDepth, sprite.depth);
    }, -Infinity);
  };

  /**
  * Returns the lowest depth in a group
  *
  * @method minDepth
  * @return {Number} The depth of the sprite drawn on the bottom
  */
  array.minDepth = function() {
    if (array.length === 0) {
      return 99999;
    }

    return array.reduce(function(minDepth, sprite) {
      return Math.min(minDepth, sprite.depth);
    }, Infinity);
  };

  /**
  * Draws all the sprites in the group.
  *
  * @method draw
  */
  array.draw = function() {

    //sort by depth
    this.sort(function(a, b) {
      return a.depth - b.depth;
    });

    for(var i = 0; i<this.size(); i++)
    {
      this.get(i).display();
    }
  };

  //internal use
  function virtEquals(obj, other) {
    if (obj === null || other === null) {
      return (obj === null) && (other === null);
    }
    if (typeof (obj) === 'string') {
      return obj === other;
    }
    if (typeof(obj) !== 'object') {
      return obj === other;
    }
    if (obj.equals instanceof Function) {
      return obj.equals(other);
    }
    return obj === other;
  }

  /**
   * Collide each member of group against the target using the given collision
   * type.  Return true if any collision occurred.
   * Internal use
   *
   * @private
   * @method _groupCollide
   * @param {!string} type one of 'overlap', 'collide', 'displace', 'bounce'
   * @param {Object} target Group or Sprite
   * @param {Function} [callback] on collision.
   * @return {boolean} True if any collision/overlap occurred
   */
  function _groupCollide(type, target, callback) {
    var didCollide = false;
    for(var i = 0; i<this.size(); i++)
      didCollide = this.get(i).AABBops(type, target, callback) || didCollide;
    return didCollide;
  }

  /**
  * Checks if the the group is overlapping another group or sprite.
  * The check is performed using the colliders. If colliders are not set
  * they will be created automatically from the image/animation bounding box.
  *
  * A callback function can be specified to perform additional operations
  * when the overlap occurs.
  * The function will be called for each single sprite overlapping.
  * The parameter of the function are respectively the
  * member of the current group and the other sprite passed as parameter.
  *
  * @example
  *     group.overlap(otherSprite, explosion);
  *
  *     function explosion(spriteA, spriteB) {
  *       spriteA.remove();
  *       spriteB.score++;
  *     }
  *
  * @method overlap
  * @param {Object} target Group or Sprite to check against the current one
  * @param {Function} [callback] The function to be called if overlap is positive
  * @return {Boolean} True if overlapping
  */
  array.overlap = _groupCollide.bind(array, 'overlap');


  /**
  * Checks if the the group is overlapping another group or sprite.
  * If the overlap is positive the sprites in the group will be displaced
  * by the colliding one to the closest non-overlapping positions.
  *
  * The check is performed using the colliders. If colliders are not set
  * they will be created automatically from the image/animation bounding box.
  *
  * A callback function can be specified to perform additional operations
  * when the overlap occours.
  * The function will be called for each single sprite overlapping.
  * The parameter of the function are respectively the
  * member of the current group and the other sprite passed as parameter.
  *
  * @example
  *     group.collide(otherSprite, explosion);
  *
  *     function explosion(spriteA, spriteB) {
  *       spriteA.remove();
  *       spriteB.score++;
  *     }
  *
  * @method collide
  * @param {Object} target Group or Sprite to check against the current one
  * @param {Function} [callback] The function to be called if overlap is positive
  * @return {Boolean} True if overlapping
  */
  array.collide = _groupCollide.bind(array, 'collide');

  /**
  * Checks if the the group is overlapping another group or sprite.
  * If the overlap is positive the sprites in the group will displace
  * the colliding ones to the closest non-overlapping positions.
  *
  * The check is performed using the colliders. If colliders are not set
  * they will be created automatically from the image/animation bounding box.
  *
  * A callback function can be specified to perform additional operations
  * when the overlap occurs.
  * The function will be called for each single sprite overlapping.
  * The parameter of the function are respectively the
  * member of the current group and the other sprite passed as parameter.
  *
  * @example
  *     group.displace(otherSprite, explosion);
  *
  *     function explosion(spriteA, spriteB) {
  *       spriteA.remove();
  *       spriteB.score++;
  *     }
  *
  * @method displace
  * @param {Object} target Group or Sprite to check against the current one
  * @param {Function} [callback] The function to be called if overlap is positive
  * @return {Boolean} True if overlapping
  */
  array.displace = _groupCollide.bind(array, 'displace');

  /**
  * Checks if the the group is overlapping another group or sprite.
  * If the overlap is positive the sprites will bounce affecting each
  * other's trajectories depending on their .velocity, .mass and .restitution.
  *
  * The check is performed using the colliders. If colliders are not set
  * they will be created automatically from the image/animation bounding box.
  *
  * A callback function can be specified to perform additional operations
  * when the overlap occours.
  * The function will be called for each single sprite overlapping.
  * The parameter of the function are respectively the
  * member of the current group and the other sprite passed as parameter.
  *
  * @example
  *     group.bounce(otherSprite, explosion);
  *
  *     function explosion(spriteA, spriteB) {
  *       spriteA.remove();
  *       spriteB.score++;
  *     }
  *
  * @method bounce
  * @param {Object} target Group or Sprite to check against the current one
  * @param {Function} [callback] The function to be called if overlap is positive
  * @return {Boolean} True if overlapping
  */
  array.bounce = _groupCollide.bind(array, 'bounce');

  return array;
}

p5.prototype.Group = Group;

//circle collider - used internally
function CircleCollider(pInst, _center, _radius, _offset) {
  var pInstBind = createPInstBinder(pInst);

  var createVector = pInstBind('createVector');

  var CENTER = p5.prototype.CENTER;

  this.center = _center;
  this.radius = _radius;
  this.originalRadius = _radius;

  if(_offset === undefined)
    this.offset = createVector(0, 0);
  else
    this.offset = _offset;
  this.extents = createVector(_radius*2, _radius*2);

  this.draw = function()
  {
    pInst.noFill();
    pInst.stroke(0, 255, 0);
    pInst.rectMode(CENTER);
    pInst.ellipse(this.center.x+this.offset.x, this.center.y+this.offset.y, this.radius*2, this.radius*2);
  };

  //should be called only for circle vs circle
  this.overlap = function(other)
  {
    //square dist
    var r = this.radius + other.radius;
    r *= r;
    var thisCenterX = this.center.x + this.offset.x;
    var thisCenterY = this.center.y + this.offset.y;
    var otherCenterX = other.center.x + other.offset.x;
    var otherCenterY = other.center.y + other.offset.y;
    var sqDist = pow(thisCenterX - otherCenterX, 2) + pow(thisCenterY - otherCenterY, 2);
    return r > sqDist;
  };

  //should be called only for circle vs circle
  this.collide = function(other)
  {
    if(this.overlap(other)) {
      var thisCenterX = this.center.x + this.offset.x;
      var thisCenterY = this.center.y + this.offset.y;
      var otherCenterX = other.center.x + other.offset.x;
      var otherCenterY = other.center.y + other.offset.y;
      var a = pInst.atan2(thisCenterY-otherCenterY, thisCenterX-otherCenterX);
      var radii = this.radius+other.radius;
      var intersection = abs(radii - dist(thisCenterX, thisCenterY, otherCenterX, otherCenterY));

      var displacement = createVector(pInst.cos(a)*intersection, pInst.sin(a)*intersection);

      return displacement;
    } else {
      return createVector(0, 0);
    }
  };

  this.size = function()
  {
    return createVector(this.radius*2, this.radius*2);
  };

  this.left = function()
  {
    return this.center.x+this.offset.x - this.radius;
  };

  this.right = function()
  {
    return this.center.x+this.offset.x + this.radius;
  };

  this.top = function()
  {
    return this.center.y+this.offset.y - this.radius;
  };

  this.bottom = function()
  {
    return this.center.y+this.offset.y + this.radius;
  };



}
defineLazyP5Property('CircleCollider', boundConstructorFactory(CircleCollider));

//axis aligned bounding box - extents are the half sizes - used internally
function AABB(pInst, _center, _extents, _offset) {
  var pInstBind = createPInstBinder(pInst);

  var createVector = pInstBind('createVector');

  var CENTER = p5.prototype.CENTER;
  var PI = p5.prototype.PI;

  this.center = _center;
  this.extents = _extents;
  this.originalExtents = _extents.copy();

  if(_offset === undefined)
    this.offset = createVector(0, 0);
  else
    this.offset = _offset;

  this.min = function()
  {
    return createVector(this.center.x+this.offset.x - this.extents.x, this.center.y+this.offset.y - this.extents.y);
  };

  this.max = function()
  {
    return createVector(this.center.x+this.offset.x + this.extents.x, this.center.y+this.offset.y + this.extents.y);
  };

  this.right = function()
  {
    return this.center.x+this.offset.x + this.extents.x/2;
  };

  this.left = function()
  {
    return this.center.x+this.offset.x - this.extents.x/2;
  };

  this.top = function()
  {
    return this.center.y+this.offset.y - this.extents.y/2;
  };

  this.bottom = function()
  {
    return this.center.y+this.offset.y + this.extents.y/2;
  };

  this.size = function()
  {
    return createVector(this.extents.x * 2, this.extents.y * 2);
  };

  this.rotate = function(r)
  {
    //rotate the bbox
    var t;
    if (pInst._angleMode === pInst.RADIANS) {
      t = radians(r);
    } else {
      t = r;
    }

    var w2 = this.extents.x * abs(pInst.cos(t)) + this.extents.y * abs(pInst.sin(t));
    var h2 = this.extents.x * abs(pInst.sin(t)) + this.extents.y * abs(pInst.cos(t));

    this.extents.x = w2;
    this.extents.y = h2;

  };

  this.draw = function()
  {
    //fill(col);
    pInst.noFill();
    pInst.stroke(0, 255, 0);
    pInst.rectMode(CENTER);
    pInst.rect(this.center.x+this.offset.x, this.center.y+this.offset.y, this.size().x/2, this.size().y/2);
  };

  this.overlap = function(other)
  {
    //box vs box
    if(other instanceof AABB)
    {
      var md = other.minkowskiDifference(this);

      if (md.min().x <= 0 &&
          md.max().x >= 0 &&
          md.min().y <= 0 &&
          md.max().y >= 0)
      {
        return true;
      }
      else
        return false;
    }
    //box vs circle
    else if(other instanceof CircleCollider)
    {

      //find closest point to the circle on the box
      var pt = createVector(other.center.x, other.center.y);

      //I don't know what's going o try to trace a line from centers to see
      if( other.center.x < this.left() )
        pt.x = this.left();
      else if( other.center.x > this.right())
        pt.x = this.right();

      if( other.center.y < this.top() )
        pt.y = this.top();
      else if( other.center.y > this.bottom())
        pt.y = this.bottom();

      var distance = pt.dist(other.center);

      return distance<other.radius;
    }
  };

  this.collide = function(other)
  {

    if(other instanceof AABB)
    {
      var md = other.minkowskiDifference(this);

      if (md.min().x <= 0 &&
          md.max().x >= 0 &&
          md.min().y <= 0 &&
          md.max().y >= 0)
      {
        var boundsPoint = md.closestPointOnBoundsToPoint(createVector(0, 0));

        return boundsPoint;
      }
      else
        return createVector(0, 0);
    }
    //box vs circle
    else if(other instanceof CircleCollider)
    {

      //find closest point to the circle on the box
      var pt = createVector(other.center.x, other.center.y);

      //I don't know what's going o try to trace a line from centers to see
      if( other.center.x < this.left() )
        pt.x = this.left();
      else if( other.center.x > this.right())
        pt.x = this.right();

      if( other.center.y < this.top() )
        pt.y = this.top();
      else if( other.center.y > this.bottom())
        pt.y = this.bottom();


      var distance = pt.dist(other.center);
      var a;

      if(distance<other.radius)
      {
        //reclamp point
        if(pt.x === other.center.x && pt.y === other.center.y)
        {
          var xOverlap = pt.x - this.center.x;
          var yOverlap = pt.y - this.center.y;


          if(abs(xOverlap) < abs(yOverlap))
          {
            if(xOverlap > 0 )
              pt.x = this.right();
            else
              pt.x = this.left();
          }
          else
          {
            if(yOverlap < 0 )
              pt.y = this.top();
            else
              pt.y = this.bottom();
          }

          a = pInst.atan2(other.center.y-pt.y, other.center.x-pt.x);

          //fix exceptions
          if(a === 0)
          {
            if(pt.x === this.right()) a = PI;
            if(pt.y === this.top()) a = PI/2;
            if(pt.y === this.bottom()) a = -PI/2;
          }
        }
        else
        {
          //angle bw point and center
          a = pInst.atan2(pt.y-other.center.y, pt.x-other.center.x);
          //project the normal (line between pt and center) onto the circle
        }

        var d = createVector(pt.x-other.center.x, pt.y-other.center.y);
        var displacement = createVector(pInst.cos(a)*other.radius-d.x, pInst.sin(a)*other.radius-d.y);

        //if(pt.x === other.center.x && pt.y === other.center.y)
        //displacement = displacement.mult(-1);

        return displacement;
        //return createVector(0,0);
      }
      else
        return createVector(0, 0);
    }
  };

  this.minkowskiDifference = function(other)
  {
    var topLeft = this.min().sub(other.max());
    var fullSize = this.size().add(other.size());
    return new AABB(pInst, topLeft.add(fullSize.div(2)), fullSize.div(2));
  };


  this.closestPointOnBoundsToPoint = function(point)
  {
    // test x first
    var minDist = abs(point.x - this.min().x);
    var boundsPoint = createVector(this.min().x, point.y);

    if (abs(this.max().x - point.x) < minDist)
    {
      minDist = abs(this.max().x - point.x);
      boundsPoint = createVector(this.max().x, point.y);
    }

    if (abs(this.max().y - point.y) < minDist)
    {
      minDist = abs(this.max().y - point.y);
      boundsPoint = createVector(point.x, this.max().y);
    }

    if (abs(this.min().y - point.y) < minDist)
    {
      minDist = abs(this.min.y - point.y);
      boundsPoint = createVector(point.x, this.min().y);
    }

    return boundsPoint;
  };


}//end AABB
defineLazyP5Property('AABB', boundConstructorFactory(AABB));



/**
 * An Animation object contains a series of images (p5.Image) that
 * can be displayed sequentially.
 *
 * All files must be png images. You must include the directory from the sketch root,
 * and the extension .png
 *
 * A sprite can have multiple labeled animations, see Sprite.addAnimation
 * and Sprite.changeAnimation, however an animation can be used independently.
 *
 * An animation can be created either by passing a series of file names,
 * no matter how many or by passing the first and the last file name
 * of a numbered sequence.
 * p5.play will try to detect the sequence pattern.
 *
 * For example if the given filenames are
 * "data/file0001.png" and "data/file0005.png" the images
 * "data/file0003.png" and "data/file0004.png" will be loaded as well.
 *
 * @example
 *     var sequenceAnimation;
 *     var glitch;
 *
 *     function preload() {
 *       sequenceAnimation = loadAnimation("data/walking0001.png", "data/walking0005.png");
 *       glitch = loadAnimation("data/dog.png", "data/horse.png", "data/cat.png", "data/snake.png");
 *     }
 *
 *     function setup() {
 *       createCanvas(800, 600);
 *     }
 *
 *     function draw() {
 *       background(0);
 *       animation(sequenceAnimation, 100, 100);
 *       animation(glitch, 200, 100);
 *     }
 *
 * @class Animation
 * @constructor
 * @param {String} fileName1 First file in a sequence OR first image file
 * @param {String} fileName2 Last file in a sequence OR second image file
 * @param {String} [...fileNameN] Any number of image files after the first two
 */
function Animation(pInst) {
  var frameArguments = Array.prototype.slice.call(arguments, 1);
  var i;

  var CENTER = p5.prototype.CENTER;

  /**
  * Array of frames (p5.Image)
  *
  * @property images
  * @type {Array}
  */
  this.images = [];

  var frame = 0;
  var cycles = 0;
  var targetFrame = -1;

  this.offX = 0;
  this.offY = 0;

  /**
  * Delay between frames in number of draw cycles.
  * If set to 4 the framerate of the animation would be the
  * sketch framerate divided by 4 (60fps = 15fps)
  *
  * @property frameDelay
  * @type {Number}
  * @default 4
  */
  this.frameDelay = 4;

  /**
  * True if the animation is currently playing.
  *
  * @property playing
  * @type {Boolean}
  * @default true
  */
  this.playing = true;

  /**
  * Animation visibility.
  *
  * @property visible
  * @type {Boolean}
  * @default true
  */
  this.visible = true;

  /**
  * If set to false the animation will stop after reaching the last frame
  *
  * @property looping
  * @type {Boolean}
  * @default true
  */
  this.looping = true;

  /**
  * True if frame changed during the last draw cycle
  *
  * @property frameChanged
  * @type {Boolean}
  */
  this.frameChanged = false;

  //is the collider defined manually or defined
  //by the current frame size
  this.imageCollider = false;


  //sequence mode
  if(frameArguments.length === 2 && typeof frameArguments[0] === 'string' && typeof frameArguments[1] === 'string')
  {
    var from = frameArguments[0];
    var to = frameArguments[1];

    //print("sequence mode "+from+" -> "+to);

    //make sure the extensions are fine
    var ext1 = from.substring(from.length-4, from.length);
    if(ext1 !== '.png')
    {
      pInst.print('Animation error: you need to use .png files (filename '+from+')');
      from = -1;
    }

    var ext2 = to.substring(to.length-4, to.length);
    if(ext2 !== '.png')
    {
      pInst.print('Animation error: you need to use .png files (filename '+to+')');
      to = -1;
    }

    //extensions are fine
    if(from !== -1 && to !== -1)
    {
      var digits1 = 0;
      var digits2 = 0;

      //skip extension work backwards to find the numbers
      for (i = from.length-5; i >= 0; i--) {
        if(from.charAt(i) >= '0' && from.charAt(i) <= '9')
          digits1++;
      }

      for (i = to.length-5; i >= 0; i--) {
        if(to.charAt(i) >= '0' && to.charAt(i) <= '9')
          digits2++;
      }

      var prefix1 = from.substring(0, from.length-(4+digits1));
      var prefix2 = to.substring(0, to.length-(4+digits2) );

      // Our numbers likely have leading zeroes, which means that some
      // browsers (e.g., PhantomJS) will interpret them as base 8 (octal)
      // instead of decimal. To fix this, we'll explicity tell parseInt to
      // use a base of 10 (decimal). For more details on this issue, see
      // http://stackoverflow.com/a/8763427/2422398.
      var number1 = parseInt(from.substring(from.length-(4+digits1), from.length-4), 10);
      var number2 = parseInt(to.substring(to.length-(4+digits2), to.length-4), 10);

      //swap if inverted
      if(number2<number1)
      {
        var t = number2;
        number2 = number1;
        number1 = t;
      }

      //two different frames
      if(prefix1 !== prefix2 )
      {
        //print("2 separate images");
        this.images.push(pInst.loadImage(from));
        this.images.push(pInst.loadImage(to));
      }
      //same digits: case img0001, img0002
      else
      {
        var fileName;
        if(digits1 === digits2)
        {

          //load all images
          for (i = number1; i <= number2; i++) {
            // Use nf() to number format 'i' into four digits
            fileName = prefix1 + pInst.nf(i, digits1) + '.png';
            this.images.push(pInst.loadImage(fileName));

          }

        }
        else //case: case img1, img2
        {
          //print("from "+prefix1+" "+number1 +" to "+number2);
          for (i = number1; i <= number2; i++) {
            // Use nf() to number format 'i' into four digits
            fileName = prefix1 + i + '.png';
            this.images.push(pInst.loadImage(fileName));

          }

        }
      }

    }//end no ext error

  }//end sequence mode
  // Sprite sheet mode
  else if (frameArguments.length === 1 && (frameArguments[0] instanceof SpriteSheet))
  {
    this.spriteSheet = frameArguments[0];
    this.images = this.spriteSheet.frames;
  }
  else if(frameArguments.length !== 0)//arbitrary list of images
  {
    //print("Animation arbitrary mode");
    for (i = 0; i < frameArguments.length; i++) {
      //print("loading "+fileNames[i]);
      if(frameArguments[i] instanceof p5.Image)
        this.images.push(frameArguments[i]);
      else
        this.images.push(pInst.loadImage(frameArguments[i]));
    }
  }

  /**
  * Objects are passed by reference so to have different sprites
  * using the same animation you need to clone it.
  *
  * @method clone
  * @return {Animation} A clone of the current animation
  */
  this.clone = function() {
    var myClone = new Animation(pInst); //empty
    myClone.images = [];

    if (this.spriteSheet) {
      myClone.spriteSheet = this.spriteSheet.clone();
    }
    myClone.images = this.images.slice();

    myClone.offX = this.offX;
    myClone.offY = this.offY;
    myClone.frameDelay = this.frameDelay;
    myClone.playing = this.playing;
    myClone.looping = this.looping;

    return myClone;
  };

  /**
   * Draws the animation at coordinate x and y.
   * Updates the frames automatically.
   *
   * @method draw
   * @param {Number} x x coordinate
   * @param {Number} y y coordinate
   * @param {Number} [r=0] rotation
   */
  this.draw = function(x, y, r) {
    this.xpos = x;
    this.ypos = y;
    this.rotation = r || 0;

    if (this.visible)
    {

      //only connection with the sprite class
      //if animation is used independently draw and update are the sam
      if(!this.isSpriteAnimation)
        this.update();

      //this.currentImageMode = g.imageMode;
      pInst.push();
      pInst.imageMode(CENTER);

      pInst.translate(this.xpos, this.ypos);
      if (pInst._angleMode === pInst.RADIANS) {
        pInst.rotate(radians(this.rotation));
      } else {
        pInst.rotate(this.rotation);
      }

      if(this.images[frame] !== undefined)
      {
        if (this.spriteSheet) {
          var frame_info = this.images[frame].frame;
          pInst.image(this.spriteSheet.image, frame_info.x, frame_info.y, frame_info.width,
            frame_info.height, this.offX, this.offY, frame_info.width, frame_info.height);
        } else {
          pInst.image(this.images[frame], this.offX, this.offY);
        }
      }
      else
      {
        pInst.print('Warning undefined frame '+frame);
        //this.isActive = false;
      }

      pInst.pop();
    }
  };

  //called by draw
  this.update = function() {
    cycles++;
    var previousFrame = frame;
    this.frameChanged = false;


    //go to frame
    if(this.images.length === 1)
    {
      this.playing = false;
      frame = 0;
    }

    if ( this.playing && cycles%this.frameDelay === 0)
    {
      //going to target frame up
      if(targetFrame>frame && targetFrame !== -1)
      {
        frame++;
      }
      //going to taget frame down
      else if(targetFrame<frame && targetFrame !== -1)
      {
        frame--;
      }
      else if(targetFrame === frame && targetFrame !== -1)
      {
        this.playing=false;
      }
      else if (this.looping) //advance frame
      {
        //if next frame is too high
        if (frame>=this.images.length-1)
          frame = 0;
        else
          frame++;
      } else
      {
        //if next frame is too high
        if (frame<this.images.length-1)
          frame++;
      }
    }

    if(previousFrame !== frame)
      this.frameChanged = true;

  };//end update

  /**
  * Plays the animation.
  *
  * @method play
  */
  this.play = function() {
    this.playing = true;
    targetFrame = -1;
  };

  /**
  * Stops the animation.
  *
  * @method stop
  */
  this.stop = function(){
    this.playing = false;
  };

  /**
  * Rewinds the animation to the first frame.
  *
  * @method rewind
  */
  this.rewind = function() {
    frame = 0;
  };

  /**
  * Changes the current frame.
  *
  * @method changeFrame
  * @param {Number} frame Frame number (starts from 0).
  */
  this.changeFrame = function(f) {
    if (f<this.images.length)
      frame = f;
    else
      frame = this.images.length - 1;

    targetFrame = -1;
    //this.playing = false;
  };

   /**
  * Goes to the next frame and stops.
  *
  * @method nextFrame
  */
  this.nextFrame = function() {

    if (frame<this.images.length-1)
      frame = frame+1;
    else if(this.looping)
      frame = 0;

    targetFrame = -1;
    this.playing = false;
  };

   /**
  * Goes to the previous frame and stops.
  *
  * @method previousFrame
  */
  this.previousFrame = function() {

    if (frame>0)
      frame = frame-1;
    else if(this.looping)
      frame = this.images.length-1;

    targetFrame = -1;
    this.playing = false;
  };

  /**
  * Plays the animation forward or backward toward a target frame.
  *
  * @method goToFrame
  * @param {Number} toFrame Frame number destination (starts from 0)
  */
  this.goToFrame = function(toFrame) {
    if(toFrame < 0 || toFrame >= this.images.length) {
      return;
    }

    // targetFrame gets used by the update() method to decide what frame to
    // select next.  When it's not being used it gets set to -1.
    targetFrame = toFrame;

    if(targetFrame !== frame) {
      this.playing = true;
    }
  };

  /**
  * Returns the current frame number.
  *
  * @method getFrame
  * @return {Number} Current frame (starts from 0)
  */
  this.getFrame = function() {
    return frame;
  };

  /**
  * Returns the last frame number.
  *
  * @method getLastFrame
  * @return {Number} Last frame number (starts from 0)
  */
  this.getLastFrame = function() {
    return this.images.length-1;
  };

  /**
  * Returns the current frame image as p5.Image.
  *
  * @method getFrameImage
  * @return {p5.Image} Current frame image
  */
  this.getFrameImage = function() {
    return this.images[frame];
  };

  /**
  * Returns the frame image at the specified frame number.
  *
  * @method getImageAt
  * @param {Number} frame Frame number
  * @return {p5.Image} Frame image
  */
  this.getImageAt = function(f) {
    return this.images[f];
  };

  /**
  * Returns the current frame width in pixels.
  * If there is no image loaded, returns 1.
  *
  * @method getWidth
  * @return {Number} Frame width
  */
  this.getWidth = function() {
    if (this.images[frame] instanceof p5.Image) {
      return this.images[frame].width;
    } else if (this.images[frame]) {
      // Special case: Animation-from-spritesheet treats its images array differently.
      return this.images[frame].frame.width;
    } else {
      return 1;
    }
  };

  /**
  * Returns the current frame height in pixels.
  * If there is no image loaded, returns 1.
  *
  * @method getHeight
  * @return {Number} Frame height
  */
  this.getHeight = function() {
    if (this.images[frame] instanceof p5.Image) {
      return this.images[frame].height;
    } else if (this.images[frame]) {
      // Special case: Animation-from-spritesheet treats its images array differently.
      return this.images[frame].frame.height;
    } else {
      return 1;
    }
  };

}

defineLazyP5Property('Animation', boundConstructorFactory(Animation));

/**
 * Represents a sprite sheet and all it's frames.  To be used with Animation,
 * or static drawing single frames.
 *
 *  There are two different ways to load a SpriteSheet
 *
 * 1. Given width, height that will be used for every frame and the
 *    number of frames to cycle through. The sprite sheet must have a
 *    uniform grid with consistent rows and columns.
 *
 * 2. Given an array of frame objects that define the position and
 *    dimensions of each frame.  This is Flexible because you can use
 *    sprite sheets that don't have uniform rows and columns.
 *
 * @example
 *     // Method 1 - Using width, height for each frame and number of frames
 *     explode_sprite_sheet = loadSpriteSheet('assets/explode_sprite_sheet.png', 171, 158, 11);
 *
 *     // Method 2 - Using an array of objects that define each frame
 *     var player_frames = loadJSON('assets/tiles.json');
 *     player_sprite_sheet = loadSpriteSheet('assets/player_spritesheet.png', player_frames);
 *
 * @class SpriteSheet
 * @constructor
 * @param image String image path or p5.Image object
 */
function SpriteSheet(pInst) {
  var spriteSheetArgs = Array.prototype.slice.call(arguments, 1);

  this.image = null;
  this.frames = [];
  this.frame_width = 0;
  this.frame_height = 0;
  this.num_frames = 0;

  /**
   * Generate the frames data for this sprite sheet baesd on user params
   * @private
   * @method _generateSheetFrames
   */
  this._generateSheetFrames = function() {
    var sX = 0, sY = 0;
    for (var i = 0; i < this.num_frames; i++) {
      this.frames.push(
        {
          'name': i,
          'frame': {
            'x': sX,
            'y': sY,
            'width': this.frame_width,
            'height': this.frame_height
          }
        });
      sX += this.frame_width;
      if (sX >= this.image.width) {
        sX = 0;
        sY += this.frame_height;
        if (sY >= this.image.height) {
          sY = 0;
        }
      }
    }
  };

  if (spriteSheetArgs.length === 2 && Array.isArray(spriteSheetArgs[1])) {
    this.frames = spriteSheetArgs[1];
    this.num_frames = this.frames.length;
  } else if (spriteSheetArgs.length === 4 &&
    (typeof spriteSheetArgs[1] === 'number') &&
    (typeof spriteSheetArgs[2] === 'number') &&
    (typeof spriteSheetArgs[3] === 'number')) {
    this.frame_width = spriteSheetArgs[1];
    this.frame_height = spriteSheetArgs[2];
    this.num_frames = spriteSheetArgs[3];
  }

  if(spriteSheetArgs[0] instanceof p5.Image) {
    this.image = spriteSheetArgs[0];
    if (spriteSheetArgs.length === 4) {
      this._generateSheetFrames();
    }
  } else {
    if (spriteSheetArgs.length === 2) {
      this.image = pInst.loadImage(spriteSheetArgs[0]);
    } else if (spriteSheetArgs.length === 4) {
      this.image = pInst.loadImage(spriteSheetArgs[0], this._generateSheetFrames.bind(this));
    }
  }

  /**
   * Draws a specific frame to the canvas.
   * @param frame_name  Can either be a string name, or a numeric index.
   * @param x   x position to draw the frame at
   * @param y   y position to draw the frame at
   * @param [width]   optional width to draw the frame
   * @param [height]  optional height to draw the frame
   * @method drawFrame
   */
  this.drawFrame = function(frame_name, x, y, width, height) {
    var frameToDraw;
    if (typeof frame_name === 'number') {
      frameToDraw = this.frames[frame_name].frame;
    } else {
      for (var i = 0; i < this.frames.length; i++) {
        if (this.frames[i].name === frame_name) {
          frameToDraw = this.frames[i].frame;
          break;
        }
      }
    }
    var dWidth = width || frameToDraw.width;
    var dHeight = height || frameToDraw.height;
    pInst.image(this.image, frameToDraw.x, frameToDraw.y,
      frameToDraw.width, frameToDraw.height, x, y, dWidth, dHeight);
  };

  /**
   * Objects are passed by reference so to have different sprites
   * using the same animation you need to clone it.
   *
   * @method clone
   * @return {SpriteSheet} A clone of the current SpriteSheet
   */
  this.clone = function() {
    var myClone = new SpriteSheet(pInst); //empty

    // Deep clone the frames by value not reference
    for(var i = 0; i < this.frames.length; i++) {
      var frame = this.frames[i].frame;
      var cloneFrame = {
        'name':frame.name,
        'frame': {
          'x':frame.x,
          'y':frame.y,
          'width':frame.width,
          'height':frame.height
        }
      };
      myClone.frames.push(cloneFrame);
    }

    // clone other fields
    myClone.image = this.image;
    myClone.frame_width = this.frame_width;
    myClone.frame_height = this.frame_height;
    myClone.num_frames = this.num_frames;

    return myClone;
  };
}

defineLazyP5Property('SpriteSheet', boundConstructorFactory(SpriteSheet));

//general constructor to be able to feed arguments as array
function construct(constructor, args) {
  function F() {
    return constructor.apply(this, args);
  }
  F.prototype = constructor.prototype;
  return new F();
}





/*
 * Javascript Quadtree
 * based on
 * https://github.com/timohausmann/quadtree-js/
 * Copyright © 2012 Timo Hausmann
*/

function Quadtree( bounds, max_objects, max_levels, level ) {

  this.active = true;
  this.max_objects	= max_objects || 10;
  this.max_levels		= max_levels || 4;

  this.level 			= level || 0;
  this.bounds 		= bounds;

  this.objects 		= [];
  this.object_refs	= [];
  this.nodes 			= [];
}

Quadtree.prototype.updateBounds = function() {

  //find maximum area
  var objects = this.getAll();
  var x = 10000;
  var y = 10000;
  var w = -10000;
  var h = -10000;

  for( var i=0; i < objects.length; i++ )
    {
      if(objects[i].position.x < x)
        x = objects[i].position.x;
      if(objects[i].position.y < y)
        y = objects[i].position.y;
      if(objects[i].position.x > w)
        w = objects[i].position.x;
      if(objects[i].position.y > h)
        h = objects[i].position.y;
    }


  this.bounds = {
    x:x,
    y:y,
    width:w,
    height:h
  };
  //print(this.bounds);
};

/*
	 * Split the node into 4 subnodes
	 */
Quadtree.prototype.split = function() {

  var nextLevel	= this.level + 1,
      subWidth	= Math.round( this.bounds.width / 2 ),
      subHeight 	= Math.round( this.bounds.height / 2 ),
      x 			= Math.round( this.bounds.x ),
      y 			= Math.round( this.bounds.y );

  //top right node
  this.nodes[0] = new Quadtree({
    x	: x + subWidth,
    y	: y,
    width	: subWidth,
    height	: subHeight
  }, this.max_objects, this.max_levels, nextLevel);

  //top left node
  this.nodes[1] = new Quadtree({
    x	: x,
    y	: y,
    width	: subWidth,
    height	: subHeight
  }, this.max_objects, this.max_levels, nextLevel);

  //bottom left node
  this.nodes[2] = new Quadtree({
    x	: x,
    y	: y + subHeight,
    width	: subWidth,
    height	: subHeight
  }, this.max_objects, this.max_levels, nextLevel);

  //bottom right node
  this.nodes[3] = new Quadtree({
    x	: x + subWidth,
    y	: y + subHeight,
    width	: subWidth,
    height	: subHeight
  }, this.max_objects, this.max_levels, nextLevel);
};


/*
	 * Determine the quadtrant for an area in this node
	 */
Quadtree.prototype.getIndex = function( pRect ) {
  if(!pRect.collider)
    return -1;
  else
  {
    var index 				= -1,
        verticalMidpoint 	= this.bounds.x + (this.bounds.width / 2),
        horizontalMidpoint 	= this.bounds.y + (this.bounds.height / 2),

        //pRect can completely fit within the top quadrants
        topQuadrant = (pRect.collider.top() < horizontalMidpoint && pRect.collider.top() + pRect.collider.size().y < horizontalMidpoint),

        //pRect can completely fit within the bottom quadrants
        bottomQuadrant = (pRect.collider.top() > horizontalMidpoint);

    //pRect can completely fit within the left quadrants
    if( pRect.collider.left() < verticalMidpoint && pRect.collider.left() + pRect.collider.size().x < verticalMidpoint ) {
      if( topQuadrant ) {
        index = 1;
      } else if( bottomQuadrant ) {
        index = 2;
      }

      //pRect can completely fit within the right quadrants
    } else if( pRect.collider.left() > verticalMidpoint ) {
      if( topQuadrant ) {
        index = 0;
      } else if( bottomQuadrant ) {
        index = 3;
      }
    }

    return index;
  }
};


/*
	 * Insert an object into the node. If the node
	 * exceeds the capacity, it will split and add all
	 * objects to their corresponding subnodes.
	 */
Quadtree.prototype.insert = function( obj ) {
  //avoid double insertion
  if(this.objects.indexOf(obj) === -1)
  {

    var i = 0,
        index;

    //if we have subnodes ...
    if( typeof this.nodes[0] !== 'undefined' ) {
      index = this.getIndex( obj );

      if( index !== -1 ) {
        this.nodes[index].insert( obj );
        return;
      }
    }

    this.objects.push( obj );

    if( this.objects.length > this.max_objects && this.level < this.max_levels ) {

      //split if we don't already have subnodes
      if( typeof this.nodes[0] === 'undefined' ) {
        this.split();
      }

      //add all objects to there corresponding subnodes
      while( i < this.objects.length ) {

        index = this.getIndex( this.objects[i] );

        if( index !== -1 ) {
          this.nodes[index].insert( this.objects.splice(i, 1)[0] );
        } else {
          i = i + 1;
        }
      }
    }
  }
};


/*
	 * Return all objects that could collide with a given area
	 */
Quadtree.prototype.retrieve = function( pRect ) {


  var index = this.getIndex( pRect ),
      returnObjects = this.objects;

  //if we have subnodes ...
  if( typeof this.nodes[0] !== 'undefined' ) {

    //if pRect fits into a subnode ..
    if( index !== -1 ) {
      returnObjects = returnObjects.concat( this.nodes[index].retrieve( pRect ) );

      //if pRect does not fit into a subnode, check it against all subnodes
    } else {
      for( var i=0; i < this.nodes.length; i=i+1 ) {
        returnObjects = returnObjects.concat( this.nodes[i].retrieve( pRect ) );
      }
    }
  }

  return returnObjects;
};

Quadtree.prototype.retrieveFromGroup = function( pRect, group ) {

  var results = [];
  var candidates = this.retrieve(pRect);

  for(var i=0; i<candidates.length; i++)
    if(group.contains(candidates[i]))
    results.push(candidates[i]);

  return results;
};

/*
	 * Get all objects stored in the quadtree
	 */
Quadtree.prototype.getAll = function() {

  var objects = this.objects;

  for( var i=0; i < this.nodes.length; i=i+1 ) {
    objects = objects.concat( this.nodes[i].getAll() );
  }

  return objects;
};


/*
	 * Get the node in which a certain object is stored
	 */
Quadtree.prototype.getObjectNode = function( obj ) {

  var index;

  //if there are no subnodes, object must be here
  if( !this.nodes.length ) {

    return this;

  } else {

    index = this.getIndex( obj );

    //if the object does not fit into a subnode, it must be here
    if( index === -1 ) {

      return this;

      //if it fits into a subnode, continue deeper search there
    } else {
      var node = this.nodes[index].getObjectNode( obj );
      if( node ) return node;
    }
  }

  return false;
};


/*
	 * Removes a specific object from the quadtree
	 * Does not delete empty subnodes. See cleanup-function
	 */
Quadtree.prototype.removeObject = function( obj ) {

  var node = this.getObjectNode( obj ),
      index = node.objects.indexOf( obj );

  if( index === -1 ) return false;

  node.objects.splice( index, 1);
};


/*
	 * Clear the quadtree and delete all objects
	 */
Quadtree.prototype.clear = function() {

  this.objects = [];

  if( !this.nodes.length ) return;

  for( var i=0; i < this.nodes.length; i=i+1 ) {

    this.nodes[i].clear();
  }

  this.nodes = [];
};


/*
	 * Clean up the quadtree
	 * Like clear, but objects won't be deleted but re-inserted
	 */
Quadtree.prototype.cleanup = function() {

  var objects = this.getAll();

  this.clear();

  for( var i=0; i < objects.length; i++ ) {
    this.insert( objects[i] );
  }
};



function updateTree() {
  if(this.quadTree.active)
  {
    this.quadTree.updateBounds();
    this.quadTree.cleanup();
  }
}

//keyboard input
p5.prototype.registerMethod('pre', p5.prototype.readPresses);

//automatic sprite update
p5.prototype.registerMethod('pre', p5.prototype.updateSprites);

//quadtree update
p5.prototype.registerMethod('post', updateTree);

//camera push and pop
p5.prototype.registerMethod('pre', cameraPush);
p5.prototype.registerMethod('post', cameraPop);

//deltaTime
//p5.prototype.registerMethod('pre', updateDelta);

/**
 * Log a warning message to the host console, using native `console.warn`
 * if it is available but falling back on `console.log` if not.  If no
 * console is available, this method will fail silently.
 * @method _warn
 * @param {!string} message
 * @private
 */
p5.prototype._warn = function(message) {
  var console = window.console;

  if(console)
  {
    if('function' === typeof console.warn)
    {
      console.warn(message);
    }
    else if('function' === typeof console.log)
    {
      console.log('Warning: ' + message);
    }
  }
};

}));