AndrePessoa

var som = {
	$el: $('#botaoMute'),
	muted: false,
	playlist: {},
	list: [
		{ id:'acerto',  url:'./jogos/audio/acerto.mp3', loop: false, volume:1 },
		{ id:'erro',    url:'./jogos/audio/erro.mp3',   loop: false, volume:1 },
		{ id:'trilha1', url:'./jogos/audio/trilha1.mp3', loop: true,  volume:0.2 },
		{ id:'trilha2',  url:'./jogos/audio/trilha2.mp3', loop: true,  volume:0.2 },
	],

AndrePessoa

function rotate( $el, start, end, time ){

  var bb = $el[0].getBBox();
  var center = {
    x: ( bb.width ) / 2 + bb.x,
    y: ( bb.height ) / 2 + bb.y,			
  };

  $({
    r: start

AndrePessoa

// class manipulation from http://www.openjs.com/scripts/dom/class_manipulation.php
function hasClass(ele,cls) {
    return ele.className.match(new RegExp('(\\s|^)'+cls+'(\\s|$)'));
}

function addClass(ele,cls) {
    if (!this.hasClass(ele,cls)) ele.className += " "+cls;
}

AndrePessoa

/**
 * Get a random floating point number between `min` and `max`.
 * 
 * @param {number} min - min number
 * @param {number} max - max number
 * @return {float} a random floating point number
 */
function getRandom(min, max) {
  return Math.min( Math.random() * (max - min) + min, max);
}