vilicvane · September 9, 2015 15:47
diff --git a/snake.html b/snake.html
 <body></body>
 <script>
 try{

 var w=20, h=20;
 var s=10;
 var t=2500;
 var sl=5;
 var lx=1, ly=0;
 var ax=1, ay=0;
 var hx=0, hy=0;

 var snk=[];
 var ap;

 var main=document.createElement("div");
 main.style.width=w*s+"px";
 main.style.height=h*s+"px";
 main.style.border="solid 1px Black";
 main.style.position="relative";
 main.style.overflow="hidden";

 var scoreBox=document.createElement("div");
 scoreBox.innerHTML="<span>Score: </span><span>0</span>";
 var score=scoreBox.childNodes[1];
 document.body.appendChild(main);
 document.body.appendChild(scoreBox);

 var map=[];
 for(var i=0;i<w;i++)
 {
 var ys=map[i]=[];
 for(var j=0;j<h;j++)
 ys[j]=false;
 }



 function create(x, y, isApple)
 {
 var d=document.createElement("div");
 d.style.height=d.style.width=s+"px";
 d.style.position="absolute";

 d.setPos=function(x, y)
 {
 if(d.x>=0 && d.y>=0)
 map[d.x][d.y]=false;
 if(x>=0 && y>=0)
 map[x][y]=true;

 d.x=x;
 d.y=y;
 d.style.left=x*s+"px";
 d.style.top=y*s+"px";
 };

 d.setMode=function(isApple)
 {
 d.style.backgroundColor=isApple?"Red":"Black";
 }

 d.setPos(x, y);
 d.setMode(isApple);

 main.appendChild(d);
 return d;
 }

 function cApple()
 {
 var x, y;
 do
 {
 x=rnd(w);
 y=rnd(h);
 }
 while(map[x][y]);
 ap=create(x, y, true);
 }

 function rnd(size)
 {
 return Math.floor(Math.random()*size);
 }

 for(var i=0;i<sl;i++)
 {
 snk.push(create(-1, 0));
 }

 document.onkeypress=function(e)
 {
 var c=e.keyCode;
 switch(c)
 {
 case 50:
 case 119:
 turn(0,-1);break;
 case 52:
 case 97:
 turn(-1,0);break;
 case 54:
 case 100:
 turn(1,0);break;
 case 56:
 case 115:
 turn(0,1);break;
 default:break;
 }
 return false;
 };

 function turn(x, y)
 {
 if(x && !ax)
 {
 lx=x;
 ly=0;
 }
 else if(y && !ay)
 {
 lx=0;
 ly=y;
 }
 }

 function paint()
 {
 ax=lx;
 ay=ly;
 hx+=lx;
 hy+=ly;

 if(hx==w)hx=0;
 else if(hx==-1)hx=w-1;
 else if(hy==h)hy=0;
 else if(hy==-1)hy=h-1;


 var hd;

 if(hx==ap.x && hy==ap.y)
 {
 hd=ap;
 hd.setMode(false);
 snk.push(hd);
 score.innerHTML=snk.length-sl;
 cApple();
 setTimeout(paint, t/snk.length);
 }
 else
 {
 hd=snk.shift();
 snk.push(hd);
 if((hd.x==hx && hd.y==hy) || !map[hx][hy])
 {
 hd.setPos(hx, hy);
 setTimeout(paint, t/snk.length);
 }
 else
 {
 alert("Game Over!\nScore: "+(snk.length-sl));
 window.location.reload();
 }
 }
 }

 alert("Press \"OK\" to start.");
 setTimeout(paint, t/snk.length);
 cApple();

 }catch(e){alert(e);}
 </script>
	<body></body>
	<script>
	try{

	var w=20, h=20;
	var s=10;
	var t=2500;
	var sl=5;
	var lx=1, ly=0;
	var ax=1, ay=0;
	var hx=0, hy=0;

	var snk=[];
	var ap;

	var main=document.createElement("div");
	main.style.width=w*s+"px";
	main.style.height=h*s+"px";
	main.style.border="solid 1px Black";
	main.style.position="relative";
	main.style.overflow="hidden";

	var scoreBox=document.createElement("div");
	scoreBox.innerHTML="<span>Score: </span><span>0</span>";
	var score=scoreBox.childNodes[1];
	document.body.appendChild(main);
	document.body.appendChild(scoreBox);

	var map=[];
	for(var i=0;i<w;i++)
	{
	var ys=map[i]=[];
	for(var j=0;j<h;j++)
	ys[j]=false;
	}



	function create(x, y, isApple)
	{
	var d=document.createElement("div");
	d.style.height=d.style.width=s+"px";
	d.style.position="absolute";

	d.setPos=function(x, y)
	{
	if(d.x>=0 && d.y>=0)
	map[d.x][d.y]=false;
	if(x>=0 && y>=0)
	map[x][y]=true;

	d.x=x;
	d.y=y;
	d.style.left=x*s+"px";
	d.style.top=y*s+"px";
	};

	d.setMode=function(isApple)
	{
	d.style.backgroundColor=isApple?"Red":"Black";
	}

	d.setPos(x, y);
	d.setMode(isApple);

	main.appendChild(d);
	return d;
	}

	function cApple()
	{
	var x, y;
	do
	{
	x=rnd(w);
	y=rnd(h);
	}
	while(map[x][y]);
	ap=create(x, y, true);
	}

	function rnd(size)
	{
	return Math.floor(Math.random()*size);
	}

	for(var i=0;i<sl;i++)
	{
	snk.push(create(-1, 0));
	}

	document.onkeypress=function(e)
	{
	var c=e.keyCode;
	switch(c)
	{
	case 50:
	case 119:
	turn(0,-1);break;
	case 52:
	case 97:
	turn(-1,0);break;
	case 54:
	case 100:
	turn(1,0);break;
	case 56:
	case 115:
	turn(0,1);break;
	default:break;
	}
	return false;
	};

	function turn(x, y)
	{
	if(x && !ax)
	{
	lx=x;
	ly=0;
	}
	else if(y && !ay)
	{
	lx=0;
	ly=y;
	}
	}

	function paint()
	{
	ax=lx;
	ay=ly;
	hx+=lx;
	hy+=ly;

	if(hx==w)hx=0;
	else if(hx==-1)hx=w-1;
	else if(hy==h)hy=0;
	else if(hy==-1)hy=h-1;


	var hd;

	if(hx==ap.x && hy==ap.y)
	{
	hd=ap;
	hd.setMode(false);
	snk.push(hd);
	score.innerHTML=snk.length-sl;
	cApple();
	setTimeout(paint, t/snk.length);
	}
	else
	{
	hd=snk.shift();
	snk.push(hd);
	if((hd.x==hx && hd.y==hy) \|\| !map[hx][hy])
	{
	hd.setPos(hx, hy);
	setTimeout(paint, t/snk.length);
	}
	else
	{
	alert("Game Over!\nScore: "+(snk.length-sl));
	window.location.reload();
	}
	}
	}

	alert("Press \"OK\" to start.");
	setTimeout(paint, t/snk.length);
	cApple();

	}catch(e){alert(e);}
	</script>