yckart

var randomAlphaNum = function () {
    var alpha = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'
    return alpha[Math.round(Math.random() * alpha.length)];
};

yckart

// http://hashify.me/
var B64 = function(){
    encode: function (raw) {
      return window.btoa( window.unescape( encodeURIComponent(raw) ) );
    },

    decode: function (b64) {
      return decodeURIComponent( window.escape( window.atob(b64) ) );
    }
};

yckart

var cookie = {
    create: function (name, value, minutes) {
        var expires;
        if (minutes) {
            var date = new Date();
            date.setTime(date.getTime() + (minutes * 60 * 1000));
            expires = "; expires=" + date.toGMTString();
        } else expires = "";
        document.cookie = name + "=" + value + expires + "; path=/";
    },

yckart

/**
 * Class
 * A class factory
 */

function Class(parent, members) {

    // prepare single-inheritance
    members = members || parent;

yckart

/*!
 * snake.js 0.0.1 - https://gist.github.com/yckart/5320382/
 * A super simple canvas snake game to port into some game-engines.
 *
 * Copyright (c) 2013 Yannick Albert (http://yckart.com)
 * Licensed under the MIT license (http://www.opensource.org/licenses/mit-license.php).
 * 2013/04/05
 */

yckart

// http://paulirish.com/2011/requestanimationframe-for-smart-animating/
// http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating
 
// requestAnimationFrame polyfill by Erik Möller. fixes from Paul Irish and Tino Zijdel
// refactored by Yannick Albert
 
// MIT license
(function(window) {
    var equestAnimationFrame = 'equestAnimationFrame',
        requestAnimationFrame = 'r' + equestAnimationFrame,

yckart

(function (performance) {
    performance.now = performance.now ||
    performance.webkitNow ||
    performance.msNow ||
    performance.mozNow ||
    Date.now || function () {
        return new Date().getTime();
    };
}(this.performance = this.performance || {}));

yckart

/*!
 * jquery.addrule.js 0.0.2 - https://gist.github.com/yckart/5563717/
 * Add css-rules to an existing stylesheet.
 *
 * @see http://stackoverflow.com/a/16507264/1250044
 *
 * Copyright (c) 2013 Yannick Albert (http://yckart.com)
 * Licensed under the MIT license (http://www.opensource.org/licenses/mit-license.php).
 * 2013/11/23
 **/

yckart

/**
 * Hide the addressbar on ios & android devices
 * https://gist.github.com/yckart/5609969
 *
 * Based on the work from Nate Smith
 * @see https://gist.github.com/nateps/1172490
 *
 * Copyright (c) 2013 Yannick Albert (http://yckart.com)
 * Licensed under the MIT license (http://www.opensource.org/licenses/mit-license.php).
 * 2013/07/10

yckart

var nthChild = function (elem, num, fn) {
    var len = elem.length;
    var ret = [];
    var i = 0;

    // :nth-child(num)
    if (!isNaN(Number(num))) {
        for (i = 0; i < len; i++) {
            if (i === num - 1) {
                if (fn) fn(elem[i]);