WebRoot/static/common/particleground/js/jquery.particleground.js

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/**
 * Particleground
 *
 * @author Jonathan Nicol - @mrjnicol
 * @version 1.0.1
 * @description Creates a canvas based particle system background
 *
 * Inspired by:
 * http://requestlab.fr/
 * http://disruptivebydesign.com/
 * 
 * @license The MIT License (MIT)
 * 
 * Copyright (c) 2014 Jonathan Nicol - @mrjnicol
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

;(function($) {
  var pluginName = 'particleground';

  function Plugin(element, options) {
    var el = element;
    var $el = $(element);
    var canvasSupport = !!document.createElement('canvas').getContext;
    var canvas;
    var ctx;
    var particles = [];
    var raf;
    var mouseX = 0;
    var mouseY = 0;
    var winW;
    var winH;
    var desktop = !navigator.userAgent.match(/(iPhone|iPod|iPad|Android|BlackBerry|BB10|mobi|tablet|opera mini|nexus 7)/i);
    var orientationSupport = !!window.DeviceOrientationEvent;
    var tiltX = 0;
    var tiltY = 0;
    var paused = false;

    options = $.extend({}, $.fn[pluginName].defaults, options);

    /**
     * Init
     */