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December 31, 2015 13:09
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Produce random squares given a max number and constraints of box size. Make the squares change colour and move somewhere away from the mouse if mouse over for at least 3 seconds.
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| <<!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>rectangles.html</title> | |
| <script type="text/javascript"> | |
| var nRectangles = 10, | |
| containerWidth = 600, | |
| containerHeight = 600, | |
| minRectDim = 50, | |
| maxRectDim = 100; | |
| // Not used in the end since we depend on containerSize | |
| function windowSize() { | |
| var w = window, | |
| d = document, | |
| e = d.documentElement, | |
| g = d.getElementsByTagName('body')[0], | |
| y = w.innerWidth || e.clientWidth || g.clientWidth, | |
| x = w.innerHeight|| e.clientHeight|| g.clientHeight; | |
| return {'width': x, 'height': y}; | |
| } | |
| function getRandomColour() { | |
| var color = '#'; | |
| var choice = 'abcdee0123456789'.split(''); | |
| for (var i = 0; i < 6; i++ ) { | |
| color += choice[Math.round(Math.random() * 15)]; | |
| } | |
| return color; | |
| } | |
| function getRandomLength() { | |
| var length = Math.round(Math.random() * maxRectDim) + minRectDim; | |
| return length; | |
| } | |
| function getRandomPos(div, e) { | |
| var boxLength = parseInt(div.style.width); | |
| var size = windowSize(); | |
| var x = Math.round(Math.random() * (containerWidth - boxLength)); | |
| var y = Math.round(Math.random() * (containerHeight - boxLength)); | |
| var e = e || null; | |
| if (e && e.pageX == x && e.pageY == y) { | |
| return getRandomPos(div, e); | |
| } | |
| return {'x': x, 'y': y }; | |
| } | |
| function createDiv(zIndex){ | |
| var div = document.createElement('div'); | |
| div.style.position = 'absolute'; | |
| length = getRandomLength(); | |
| div.style.width = length + 'px'; | |
| div.style.height = length + 'px'; | |
| var pos = getRandomPos(div); | |
| div.style.top = pos['x'] + 'px'; | |
| div.style.left = pos['y'] + 'px'; | |
| div.style.backgroundColor = getRandomColour(); | |
| div.style.zIndex = zIndex; | |
| return div; | |
| } | |
| function createRectangle(zIndex){ | |
| var div = createDiv(zIndex); | |
| var waitTimer = null; | |
| div.onmouseover = function(e){ | |
| waitTimer = setTimeout(function(){ | |
| div.style.backgroundColor = getRandomColour(); | |
| var newPos = getRandomPos(div, e); | |
| div.style.left = newPos['x'] + 'px'; | |
| div.style.top = newPos['y'] + 'px'; | |
| }, 3000); | |
| } | |
| div.onmouseout = function() { | |
| clearTimeout(waitTimer); | |
| } | |
| document.getElementsByTagName('body')[0].appendChild(div); | |
| return div; | |
| } | |
| function init() { | |
| var done = nRectangles; | |
| while (done--) { | |
| createRectangle(done); | |
| } | |
| } | |
| window.onload = init; | |
| </script> | |
| </head> | |
| <body> | |
| </body> |
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