CCBoot.js

/****************************************************************************
 Copyright (c) 2011-2012 cocos2d-x.org
 Copyright (c) 2013-2015 Chukong Technologies Inc.

 http://www.cocos2d-x.org

 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.
 ****************************************************************************/

/**
 * The main namespace of Cocos2d-JS, all engine core classes, functions, properties and constants are defined in this namespace
 * @namespace
 * @name cc
 */
var cc = cc || {};
cc._tmp = cc._tmp || {};
cc._LogInfos = {};

var _p = window;
/** @expose */
_p.gl;
/** @expose */
_p.WebGLRenderingContext;
/** @expose */
_p.DeviceOrientationEvent;
/** @expose */
_p.DeviceMotionEvent;
/** @expose */
_p.AudioContext;
if (!_p.AudioContext) {
    /** @expose */
    _p.webkitAudioContext;
}
/** @expose */
_p.mozAudioContext;
_p = Object.prototype;
/** @expose */
_p._super;
/** @expose */
_p.ctor;
_p = null;

/**
 * drawing primitive of game engine
 * @type {cc.DrawingPrimitive}
 */
cc._drawingUtil = null;

/**
 * main Canvas 2D/3D Context of game engine
 * @type {CanvasRenderingContext2D|WebGLRenderingContext}
 */
cc._renderContext = null;
cc._supportRender = false;

/**
 * Main canvas of game engine
 * @type {HTMLCanvasElement}
 */
cc._canvas = null;

/**
 * The element contains the game canvas
 * @type {HTMLDivElement}
 */
cc.container = null;
cc._gameDiv = null;

window.ENABLE_IMAEG_POOL = true;

/**
 * Iterate over an object or an array, executing a function for each matched element.
 * @param {object|array} obj
 * @param {function} iterator
 * @param {object} [context]
 */
cc.each = function (obj, iterator, context) {
    if (!obj)
        return;
    if (obj instanceof Array) {
        for (var i = 0, li = obj.length; i < li; i++) {
            if (iterator.call(context, obj[i], i) === false)
                return;
        }
    } else {
        for (var key in obj) {
            if (iterator.call(context, obj[key], key) === false)
                return;
        }
    }
};

/**
 * Copy all of the properties in source objects to target object and return the target object.
 * @param {object} target
 * @param {object} *sources
 * @returns {object}
 */
cc.extend = function (target) {
    var sources = arguments.length >= 2 ? Array.prototype.slice.call(arguments, 1) : [];

    cc.each(sources, function (src) {
        for (var key in src) {
            if (src.hasOwnProperty(key)) {
                target[key] = src[key];
            }
        }
    });
    return target;
};

/**
 * Another way to subclass: Using Google Closure.
 * The following code was copied + pasted from goog.base / goog.inherits
 * @function
 * @param {Function} childCtor
 * @param {Function} parentCtor
 */
cc.inherits = function (childCtor, parentCtor) {
    function tempCtor() {}
    tempCtor.prototype = parentCtor.prototype;
    childCtor.superClass_ = parentCtor.prototype;
    childCtor.prototype = new tempCtor();
    childCtor.prototype.constructor = childCtor;

    // Copy "static" method, but doesn't generate subclasses.
    // for( var i in parentCtor ) {
    // childCtor[ i ] = parentCtor[ i ];
    // }
};

/**
 * Check the obj whether is function or not
 * @param {*} obj
 * @returns {boolean}
 */
cc.isFunction = function (obj) {
    return typeof obj === 'function';
};

/**
 * Check the obj whether is number or not
 * @param {*} obj
 * @returns {boolean}
 */
cc.isNumber = function (obj) {
    return typeof obj === 'number' || Object.prototype.toString.call(obj) === '[object Number]';
};

/**
 * Check the obj whether is string or not
 * @param {*} obj
 * @returns {boolean}
 */
cc.isString = function (obj) {
    return typeof obj === 'string' || Object.prototype.toString.call(obj) === '[object String]';
};

/**
 * Check the obj whether is array or not
 * @param {*} obj
 * @returns {boolean}
 */
cc.isArray = function (obj) {
    return Array.isArray(obj) ||
        (typeof obj === 'object' && Object.prototype.toString.call(obj) === '[object Array]');
};

/**
 * Check the obj whether is undefined or not
 * @param {*} obj
 * @returns {boolean}
 */
cc.isUndefined = function (obj) {
    return typeof obj === 'undefined';
};

/**
 * Check the obj whether is object or not
 * @param {*} obj
 * @returns {boolean}
 */
cc.isObject = function (obj) {
    return typeof obj === "object" && Object.prototype.toString.call(obj) === '[object Object]';
};

/**
 * Check the url whether cross origin
 * @param {String} url
 * @returns {boolean}
 */
cc.isCrossOrigin = function (url) {
    if (!url) {
        cc.log("invalid URL");
        return false;
    }
    var startIndex = url.indexOf("://");
    if (startIndex === -1)
        return false;

    var endIndex = url.indexOf("/", startIndex + 3);
    var urlOrigin = (endIndex === -1) ? url : url.substring(0, endIndex);
    return urlOrigin !== location.origin;
};

//+++++++++++++++++++++++++something about async begin+++++++++++++++++++++++++++++++
/**
 * Async Pool class, a helper of cc.async
 * @param {Object|Array} srcObj
 * @param {Number} limit the limit of parallel number
 * @param {function} iterator
 * @param {function} onEnd
 * @param {object} target
 * @constructor
 */
cc.AsyncPool = function (srcObj, limit, iterator, onEnd, target) {
    var self = this;
    self._finished = false;
    self._srcObj = srcObj;
    self._limit = limit;
    self._pool = [];
    self._iterator = iterator;
    self._iteratorTarget = target;
    self._onEnd = onEnd;
    self._onEndTarget = target;
    self._results = srcObj instanceof Array ? [] : {};
    self._errors = srcObj instanceof Array ? [] : {};

    cc.each(srcObj, function (value, index) {
        self._pool.push({index: index, value: value});
    });

    self.size = self._pool.length;
    self.finishedSize = 0;
    self._workingSize = 0;

    self._limit = self._limit || self.size;

    self.onIterator = function (iterator, target) {
        self._iterator = iterator;
        self._iteratorTarget = target;
    };

    self.onEnd = function (endCb, endCbTarget) {
        self._onEnd = endCb;
        self._onEndTarget = endCbTarget;
    };

    self._handleItem = function () {
        var self = this;
        if (self._pool.length === 0 || self._workingSize >= self._limit)
            return;                                                         //return directly if the array's length = 0 or the working size great equal limit number

        var item = self._pool.shift();
        var value = item.value, index = item.index;
        self._workingSize++;
        self._iterator.call(self._iteratorTarget, value, index,
            function (err, result) {
                if (self._finished) {
                    return;
                }

                if (err) {
                    self._errors[this.index] = err;
                }
                else {
                    self._results[this.index] = result;
                }

                self.finishedSize++;
                self._workingSize--;
                if (self.finishedSize === self.size) {
                    var errors = self._errors.length === 0 ? null : self._errors;
                    self.onEnd(errors, self._results);
                    return;
                }
                self._handleItem();
            }.bind(item),
            self);
    };

    self.flow = function () {
        var self = this;
        if (self._pool.length === 0) {
            if (self._onEnd)
                self._onEnd.call(self._onEndTarget, null, []);
            return;
        }
        for (var i = 0; i < self._limit; i++)
            self._handleItem();
    };

    self.onEnd = function(errors, results) {
        self._finished = true;
        if (self._onEnd) {
            var selector = self._onEnd;
            var target = self._onEndTarget;
            self._onEnd = null;
            self._onEndTarget = null;
            selector.call(target, errors, results);
        }
    };
};

/**
 * @class
 */
cc.async = /** @lends cc.async# */{
    /**
     * Do tasks series.
     * @param {Array|Object} tasks
     * @param {function} [cb] callback
     * @param {Object} [target]
     * @return {cc.AsyncPool}
     */
    series: function (tasks, cb, target) {
        var asyncPool = new cc.AsyncPool(tasks, 1, function (func, index, cb1) {
            func.call(target, cb1);
        }, cb, target);
        asyncPool.flow();
        return asyncPool;
    },

    /**
     * Do tasks parallel.
     * @param {Array|Object} tasks
     * @param {function} cb callback
     * @param {Object} [target]
     * @return {cc.AsyncPool}
     */
    parallel: function (tasks, cb, target) {
        var asyncPool = new cc.AsyncPool(tasks, 0, function (func, index, cb1) {
            func.call(target, cb1);
        }, cb, target);
        asyncPool.flow();
        return asyncPool;
    },

    /**
     * Do tasks waterfall.
     * @param {Array|Object} tasks
     * @param {function} cb callback
     * @param {Object} [target]
     * @return {cc.AsyncPool}
     */
    waterfall: function (tasks, cb, target) {
        var args = [];
        var lastResults = [null];//the array to store the last results
        var asyncPool = new cc.AsyncPool(tasks, 1,
            function (func, index, cb1) {
                args.push(function (err) {
                    args = Array.prototype.slice.call(arguments, 1);
                    if (tasks.length - 1 === index) lastResults = lastResults.concat(args);//while the last task
                    cb1.apply(null, arguments);
                });
                func.apply(target, args);
            }, function (err) {
                if (!cb)
                    return;
                if (err)
                    return cb.call(target, err);
                cb.apply(target, lastResults);
            });
        asyncPool.flow();
        return asyncPool;
    },

    /**
     * Do tasks by iterator.
     * @param {Array|Object} tasks
     * @param {function|Object} iterator
     * @param {function} [callback]
     * @param {Object} [target]
     * @return {cc.AsyncPool}
     */
    map: function (tasks, iterator, callback, target) {
        var locIterator = iterator;
        if (typeof(iterator) === "object") {
            callback = iterator.cb;
            target = iterator.iteratorTarget;
            locIterator = iterator.iterator;
        }
        var asyncPool = new cc.AsyncPool(tasks, 0, locIterator, callback, target);
        asyncPool.flow();
        return asyncPool;
    },

    /**
     * Do tasks by iterator limit.
     * @param {Array|Object} tasks
     * @param {Number} limit
     * @param {function} iterator
     * @param {function} cb callback
     * @param {Object} [target]
     */
    mapLimit: function (tasks, limit, iterator, cb, target) {
        var asyncPool = new cc.AsyncPool(tasks, limit, iterator, cb, target);
        asyncPool.flow();
        return asyncPool;
    }
};
//+++++++++++++++++++++++++something about async end+++++++++++++++++++++++++++++++++

//+++++++++++++++++++++++++something about path begin++++++++++++++++++++++++++++++++
/**
 * @class
 */
cc.path = /** @lends cc.path# */{
    normalizeRE: /[^\.\/]+\/\.\.\//,

    /**
     * Join strings to be a path.
     * @example
     cc.path.join("a", "b.png");//-->"a/b.png"
     cc.path.join("a", "b", "c.png");//-->"a/b/c.png"
     cc.path.join("a", "b");//-->"a/b"
     cc.path.join("a", "b", "/");//-->"a/b/"
     cc.path.join("a", "b/", "/");//-->"a/b/"
     * @returns {string}
     */
    join: function () {
        var l = arguments.length;
        var result = "";
        for (var i = 0; i < l; i++) {
            result = (result + (result === "" ? "" : "/") + arguments[i]).replace(/(\/|\\\\)$/, "");
        }
        return result;
    },

    /**
     * Get the ext name of a path.
     * @example
     cc.path.extname("a/b.png");//-->".png"
     cc.path.extname("a/b.png?a=1&b=2");//-->".png"
     cc.path.extname("a/b");//-->null
     cc.path.extname("a/b?a=1&b=2");//-->null
     * @param {string} pathStr
     * @returns {*}
     */
    extname: function (pathStr) {
        var temp = /(\.[^\.\/\?\\]*)(\?.*)?$/.exec(pathStr);
        return temp ? temp[1] : null;
    },

    /**
     * Get the main name of a file name
     * @param {string} fileName
     * @returns {string}
     */
    mainFileName: function (fileName) {
        if (fileName) {
            var idx = fileName.lastIndexOf(".");
            if (idx !== -1)
                return fileName.substring(0, idx);
        }
        return fileName;
    },

    /**
     * Get the file name of a file path.
     * @example
     cc.path.basename("a/b.png");//-->"b.png"
     cc.path.basename("a/b.png?a=1&b=2");//-->"b.png"
     cc.path.basename("a/b.png", ".png");//-->"b"
     cc.path.basename("a/b.png?a=1&b=2", ".png");//-->"b"
     cc.path.basename("a/b.png", ".txt");//-->"b.png"
     * @param {string} pathStr
     * @param {string} [extname]
     * @returns {*}
     */
    basename: function (pathStr, extname) {
        var index = pathStr.indexOf("?");
        if (index > 0) pathStr = pathStr.substring(0, index);
        var reg = /(\/|\\\\)([^(\/|\\\\)]+)$/g;
        var result = reg.exec(pathStr.replace(/(\/|\\\\)$/, ""));
        if (!result) return null;
        var baseName = result[2];
        if (extname && pathStr.substring(pathStr.length - extname.length).toLowerCase() === extname.toLowerCase())
            return baseName.substring(0, baseName.length - extname.length);
        return baseName;
    },

    /**
     * Get dirname of a file path.
     * @example
     * unix
     cc.path.driname("a/b/c.png");//-->"a/b"
     cc.path.driname("a/b/c.png?a=1&b=2");//-->"a/b"
     cc.path.dirname("a/b/");//-->"a/b"
     cc.path.dirname("c.png");//-->""
     * windows
     cc.path.driname("a\\b\\c.png");//-->"a\b"
     cc.path.driname("a\\b\\c.png?a=1&b=2");//-->"a\b"
     * @param {string} pathStr
     * @returns {*}
     */
    dirname: function (pathStr) {
        return pathStr.replace(/((.*)(\/|\\|\\\\))?(.*?\..*$)?/, '$2');
    },

    /**
     * Change extname of a file path.
     * @example
     cc.path.changeExtname("a/b.png", ".plist");//-->"a/b.plist"
     cc.path.changeExtname("a/b.png?a=1&b=2", ".plist");//-->"a/b.plist?a=1&b=2"
     * @param {string} pathStr
     * @param {string} [extname]
     * @returns {string}
     */
    changeExtname: function (pathStr, extname) {
        extname = extname || "";
        var index = pathStr.indexOf("?");
        var tempStr = "";
        if (index > 0) {
            tempStr = pathStr.substring(index);
            pathStr = pathStr.substring(0, index);
        }
        index = pathStr.lastIndexOf(".");
        if (index < 0) return pathStr + extname + tempStr;
        return pathStr.substring(0, index) + extname + tempStr;
    },
    /**
     * Change file name of a file path.
     * @example
     cc.path.changeBasename("a/b/c.plist", "b.plist");//-->"a/b/b.plist"
     cc.path.changeBasename("a/b/c.plist?a=1&b=2", "b.plist");//-->"a/b/b.plist?a=1&b=2"
     cc.path.changeBasename("a/b/c.plist", ".png");//-->"a/b/c.png"
     cc.path.changeBasename("a/b/c.plist", "b");//-->"a/b/b"
     cc.path.changeBasename("a/b/c.plist", "b", true);//-->"a/b/b.plist"
     * @param {String} pathStr
     * @param {String} basename
     * @param {Boolean} [isSameExt]
     * @returns {string}
     */
    changeBasename: function (pathStr, basename, isSameExt) {
        if (basename.indexOf(".") === 0) return this.changeExtname(pathStr, basename);
        var index = pathStr.indexOf("?");
        var tempStr = "";
        var ext = isSameExt ? this.extname(pathStr) : "";
        if (index > 0) {
            tempStr = pathStr.substring(index);
            pathStr = pathStr.substring(0, index);
        }
        index = pathStr.lastIndexOf("/");
        index = index <= 0 ? 0 : index + 1;
        return pathStr.substring(0, index) + basename + ext + tempStr;
    },
    //todo make public after verification
    _normalize: function (url) {
        var oldUrl = url = String(url);

        //removing all ../
        do {
            oldUrl = url;
            url = url.replace(this.normalizeRE, "");
        } while (oldUrl.length !== url.length);
        return url;
    }
};
//+++++++++++++++++++++++++something about path end++++++++++++++++++++++++++++++++

//+++++++++++++++++++++++++something about loader start+++++++++++++++++++++++++++
/**
 * Resource loading management. Created by in CCBoot.js as a singleton
 * cc.loader.
 * @name cc.Loader
 * @class
 * @memberof cc
 * @see cc.loader
 */

var imagePool = {
    _pool: new Array(10),
    _MAX: 10,
    _smallImg: "data:image/gif;base64,R0lGODlhAQABAAAAACwAAAAAAQABAAA=",

    count: 0,
    get: function () {
        if (this.count > 0) {
            this.count--;
            var result = this._pool[this.count];
            this._pool[this.count] = null;
            return result;
        }
        else {
            return new Image();
        }
    },
    put: function (img) {
        var pool = this._pool;
        if (img instanceof HTMLImageElement && this.count < this._MAX) {
            img.src = this._smallImg;
            pool[this.count] = img;
            this.count++;
        }
    }
};

/**
 * Singleton instance of cc.Loader.
 * @name cc.loader
 * @member {cc.Loader}
 * @memberof cc
 */
cc.loader = (function () {
    var _jsCache = {}, //cache for js
        _register = {}, //register of loaders
        _langPathCache = {}, //cache for lang path
        _aliases = {}, //aliases for res url
        _queue = {}, // Callback queue for resources already loading
        _urlRegExp = new RegExp("^(?:https?|ftp)://\\S*$", "i");

    return /** @lends cc.Loader# */{
        /**
         * Root path of resources.
         * @type {String}
         */
        resPath: "",

        /**
         * Root path of audio resources
         * @type {String}
         */
        audioPath: "",

        /**
         * Cache for data loaded.
         * @type {Object}
         */
        cache: {},

        /**
         * Get XMLHttpRequest.
         * @returns {XMLHttpRequest}
         */
        getXMLHttpRequest: function () {
            var xhr = window.XMLHttpRequest ? new window.XMLHttpRequest() : new ActiveXObject("MSXML2.XMLHTTP");
            xhr.timeout = 10000;
            if (xhr.ontimeout === undefined) {
                xhr._timeoutId = -1;
            }
            return xhr;
        },

        //@MODE_BEGIN DEV

        _getArgs4Js: function (args) {
            var a0 = args[0], a1 = args[1], a2 = args[2], results = ["", null, null];

            if (args.length === 1) {
                results[1] = a0 instanceof Array ? a0 : [a0];
            } else if (args.length === 2) {
                if (typeof a1 === "function") {
                    results[1] = a0 instanceof Array ? a0 : [a0];
                    results[2] = a1;
                } else {
                    results[0] = a0 || "";
                    results[1] = a1 instanceof Array ? a1 : [a1];
                }
            } else if (args.length === 3) {
                results[0] = a0 || "";
                results[1] = a1 instanceof Array ? a1 : [a1];
                results[2] = a2;
            } else throw new Error("arguments error to load js!");
            return results;
        },

        isLoading: function (url) {
            return (_queue[url] !== undefined);
        },

        /**
         * Load js files.
         * If the third parameter doesn't exist, then the baseDir turns to be "".
         *
         * @param {string} [baseDir]   The pre path for jsList or the list of js path.
         * @param {array} jsList    List of js path.
         * @param {function} [cb]  Callback function
         * @returns {*}
         */
        loadJs: function (baseDir, jsList, cb) {
            var self = this,
                args = self._getArgs4Js(arguments);

            var preDir = args[0], list = args[1], callback = args[2];
            if (navigator.userAgent.indexOf("Trident/5") > -1) {
                self._loadJs4Dependency(preDir, list, 0, callback);
            } else {
                cc.async.map(list, function (item, index, cb1) {
                    var jsPath = cc.path.join(preDir, item);
                    if (_jsCache[jsPath]) return cb1(null);
                    self._createScript(jsPath, false, cb1);
                }, callback);
            }
        },
        /**
         * Load js width loading image.
         *
         * @param {string} [baseDir]
         * @param {array} jsList
         * @param {function} [cb]
         */
        loadJsWithImg: function (baseDir, jsList, cb) {
            var self = this, jsLoadingImg = self._loadJsImg(),
                args = self._getArgs4Js(arguments);
            this.loadJs(args[0], args[1], function (err) {
                if (err) throw new Error(err);
                jsLoadingImg.parentNode.removeChild(jsLoadingImg);//remove loading gif
                if (args[2]) args[2]();
            });
        },
        _createScript: function (jsPath, isAsync, cb) {
            var d = document, self = this, s = document.createElement('script');
            s.async = isAsync;
            _jsCache[jsPath] = true;
            if (cc.game.config["noCache"] && typeof jsPath === "string") {
                if (self._noCacheRex.test(jsPath))
                    s.src = jsPath + "&_t=" + (new Date() - 0);
                else
                    s.src = jsPath + "?_t=" + (new Date() - 0);
            } else {
                s.src = jsPath;
            }
            s.addEventListener('load', function () {
                s.parentNode.removeChild(s);
                this.removeEventListener('load', arguments.callee, false);
                cb();
            }, false);
            s.addEventListener('error', function () {
                s.parentNode.removeChild(s);
                cb("Load " + jsPath + " failed!");
            }, false);
            d.body.appendChild(s);
        },
        _loadJs4Dependency: function (baseDir, jsList, index, cb) {
            if (index >= jsList.length) {
                if (cb) cb();
                return;
            }
            var self = this;
            self._createScript(cc.path.join(baseDir, jsList[index]), false, function (err) {
                if (err) return cb(err);
                self._loadJs4Dependency(baseDir, jsList, index + 1, cb);
            });
        },
        _loadJsImg: function () {
            var d = document, jsLoadingImg = d.getElementById("cocos2d_loadJsImg");
            if (!jsLoadingImg) {
                jsLoadingImg = document.createElement('img');

                if (cc._loadingImage)
                    jsLoadingImg.src = cc._loadingImage;

                var canvasNode = d.getElementById(cc.game.config["id"]);
                canvasNode.style.backgroundColor = "transparent";
                canvasNode.parentNode.appendChild(jsLoadingImg);

                var canvasStyle = getComputedStyle ? getComputedStyle(canvasNode) : canvasNode.currentStyle;
                if (!canvasStyle)
                    canvasStyle = {width: canvasNode.width, height: canvasNode.height};
                jsLoadingImg.style.left = canvasNode.offsetLeft + (parseFloat(canvasStyle.width) - jsLoadingImg.width) / 2 + "px";
                jsLoadingImg.style.top = canvasNode.offsetTop + (parseFloat(canvasStyle.height) - jsLoadingImg.height) / 2 + "px";
                jsLoadingImg.style.position = "absolute";
            }
            return jsLoadingImg;
        },
        //@MODE_END DEV

        /**
         * Load a single resource as txt.
         * @param {string} url
         * @param {function} [cb] arguments are : err, txt
         */
        loadTxt: function (url, cb) {
            if (!cc._isNodeJs) {
                var xhr = this.getXMLHttpRequest(),
                    errInfo = "load " + url + " failed!";
                xhr.open("GET", url, true);
                if (/msie/i.test(navigator.userAgent) && !/opera/i.test(navigator.userAgent)) {
                    // IE-specific logic here
                    xhr.setRequestHeader("Accept-Charset", "utf-8");
                    xhr.onreadystatechange = function () {
                        if (xhr.readyState === 4)
                            (xhr.status === 200||xhr.status === 0) ? cb(null, xhr.responseText) : cb({status:xhr.status, errorMessage:errInfo}, null);
                    };
                } else {
                    if (xhr.overrideMimeType) xhr.overrideMimeType("text\/plain; charset=utf-8");
                    var loadCallback = function () {
                        xhr.removeEventListener('load', loadCallback);
                        xhr.removeEventListener('error', errorCallback);
                        if (xhr._timeoutId >= 0) {
                            clearTimeout(xhr._timeoutId);
                        }
                        else {
                            xhr.removeEventListener('timeout', timeoutCallback);
                        }
                        if (xhr.readyState === 4) {
                            (xhr.status === 200||xhr.status === 0) ? cb(null, xhr.responseText) : cb({status:xhr.status, errorMessage:errInfo}, null);
                        }
                    };
                    var errorCallback = function () {
                        xhr.removeEventListener('load', loadCallback);
                        xhr.removeEventListener('error', errorCallback);
                        if (xhr._timeoutId >= 0) {
                            clearTimeout(xhr._timeoutId);
                        }
                        else {
                            xhr.removeEventListener('timeout', timeoutCallback);
                        }
                        cb({status: xhr.status, errorMessage: errInfo}, null);
                    };
                    var timeoutCallback = function () {
                        xhr.removeEventListener('load', loadCallback);
                        xhr.removeEventListener('error', errorCallback);
                        if (xhr._timeoutId >= 0) {
                            clearTimeout(xhr._timeoutId);
                        }
                        else {
                            xhr.removeEventListener('timeout', timeoutCallback);
                        }
                        cb({status: xhr.status, errorMessage: "Request timeout: " + errInfo}, null);
                    };
                    xhr.addEventListener('load', loadCallback);
                    xhr.addEventListener('error', errorCallback);
                    if (xhr.ontimeout === undefined) {
                        xhr._timeoutId = setTimeout(function () {
                            timeoutCallback();
                        }, xhr.timeout);
                    }
                    else {
                        xhr.addEventListener('timeout', timeoutCallback);
                    }
                }
                xhr.send(null);
            } else {
                var fs = require("fs");
                fs.readFile(url, function (err, data) {
                    err ? cb(err) : cb(null, data.toString());
                });
            }
        },

        loadCsb: function(url, cb){
            var xhr = cc.loader.getXMLHttpRequest(),
                errInfo = "load " + url + " failed!";
            xhr.open("GET", url, true);
            xhr.responseType = "arraybuffer";

            var loadCallback = function () {
                xhr.removeEventListener('load', loadCallback);
                xhr.removeEventListener('error', errorCallback);
                if (xhr._timeoutId >= 0) {
                    clearTimeout(xhr._timeoutId);
                }
                else {
                    xhr.removeEventListener('timeout', timeoutCallback);
                }
                var arrayBuffer = xhr.response; // Note: not oReq.responseText
                if (arrayBuffer) {
                    window.msg = arrayBuffer;
                }
                if (xhr.readyState === 4) {
                    (xhr.status === 200||xhr.status === 0) ? cb(null, xhr.response) : cb({status:xhr.status, errorMessage:errInfo}, null);
                }
            };
            var errorCallback = function(){
                xhr.removeEventListener('load', loadCallback);
                xhr.removeEventListener('error', errorCallback);
                if (xhr._timeoutId >= 0) {
                    clearTimeout(xhr._timeoutId);
                }
                else {
                    xhr.removeEventListener('timeout', timeoutCallback);
                }
                cb({status:xhr.status, errorMessage:errInfo}, null);
            };
            var timeoutCallback = function () {
                xhr.removeEventListener('load', loadCallback);
                xhr.removeEventListener('error', errorCallback);
                if (xhr._timeoutId >= 0) {
                    clearTimeout(xhr._timeoutId);
                }
                else {
                    xhr.removeEventListener('timeout', timeoutCallback);
                }
                cb({status: xhr.status, errorMessage: "Request timeout: " + errInfo}, null);
            };
            xhr.addEventListener('load', loadCallback);
            xhr.addEventListener('error', errorCallback);
            if (xhr.ontimeout === undefined) {
                xhr._timeoutId = setTimeout(function () {
                    timeoutCallback();
                }, xhr.timeout);
            }
            else {
                xhr.addEventListener('timeout', timeoutCallback);
            }
            xhr.send(null);
        },

        /**
         * Load a single resource as json.
         * @param {string} url
         * @param {function} [cb] arguments are : err, json
         */
        loadJson: function (url, cb) {
            this.loadTxt(url, function (err, txt) {
                if (err) {
                    cb(err);
                }
                else {
                    try {
                        var result = JSON.parse(txt);
                    }
                    catch (e) {
                        throw new Error("parse json [" + url + "] failed : " + e);
                        return;
                    }
                    cb(null, result);
                }
            });
        },

        _checkIsImageURL: function (url) {
            var ext = /(\.png)|(\.jpg)|(\.bmp)|(\.jpeg)|(\.gif)/.exec(url);
            return (ext != null);
        },
        /**
         * Load a single image.
         * @param {!string} url
         * @param {object} [option]
         * @param {function} callback
         * @returns {Image}
         */
        loadImg: function (url, option, callback, img) {
            var opt = {
                isCrossOrigin: true
            };
            if (callback !== undefined)
                opt.isCrossOrigin = option.isCrossOrigin === undefined ? opt.isCrossOrigin : option.isCrossOrigin;
            else if (option !== undefined)
                callback = option;

            var texture = this.getRes(url);
            if (texture) {
                callback && callback(null, texture);
                return null;
            }

            var queue = _queue[url];
            if (queue) {
                queue.callbacks.push(callback);
                return queue.img;
            }

            img = img || imagePool.get();
            if (opt.isCrossOrigin && location.origin !== "file://")
                img.crossOrigin = "Anonymous";
            else
                img.crossOrigin = null;

            var loadCallback = function () {
                this.removeEventListener('load', loadCallback, false);
                this.removeEventListener('error', errorCallback, false);

                var queue = _queue[url];
                if (queue) {
                    var callbacks = queue.callbacks;
                    for (var i = 0; i < callbacks.length; ++i) {
                        var cb = callbacks[i];
                        if (cb) {
                            cb(null, img);
                        }
                    }
                    queue.img = null;
                    delete _queue[url];
                }

                if (window.ENABLE_IMAEG_POOL && cc._renderType === cc.game.RENDER_TYPE_WEBGL) {
                    imagePool.put(img);
                }
            };

            var self = this;
            var errorCallback = function () {
                this.removeEventListener('load', loadCallback, false);
                this.removeEventListener('error', errorCallback, false);

                if (window.location.protocol !== 'https:' && img.crossOrigin && img.crossOrigin.toLowerCase() === "anonymous") {
                    opt.isCrossOrigin = false;
                    self.release(url);
                    cc.loader.loadImg(url, opt, callback, img);
                } else {
                    var queue = _queue[url];
                    if (queue) {
                        var callbacks = queue.callbacks;
                        for (var i = 0; i < callbacks.length; ++i) {
                            var cb = callbacks[i];
                            if (cb) {
                                cb("load image failed");
                            }
                        }
                        queue.img = null;
                        delete _queue[url];
                    }

                    if (cc._renderType === cc.game.RENDER_TYPE_WEBGL) {
                        imagePool.put(img);
                    }
                }
            };

            _queue[url] = {
                img: img,
                callbacks: callback ? [callback] : []
            };

            img.addEventListener("load", loadCallback);
            img.addEventListener("error", errorCallback);
            img.src = url;
            return img;
        },

        /**
         * Iterator function to load res
         * @param {object} item
         * @param {number} index
         * @param {function} [cb]
         * @returns {*}
         * @private
         */
        _loadResIterator: function (item, index, cb) {
            var self = this, url = null;
            var type = item.type;
            if (type) {
                type = "." + type.toLowerCase();
                url = item.src ? item.src : item.name + type;
            } else {
                url = item;
                type = cc.path.extname(url);
            }

            var obj = self.getRes(url);
            if (obj)
                return cb(null, obj);
            var loader = null;
            if (type) {
                loader = _register[type.toLowerCase()];
            }
            if (!loader) {
                cc.error("loader for [" + type + "] doesn't exist!");
                return cb();
            }
            var realUrl = url;
            if (!_urlRegExp.test(url)) {
                var basePath = loader.getBasePath ? loader.getBasePath() : self.resPath;
                realUrl = self.getUrl(basePath, url);
            }

            if (cc.game.config["noCache"] && typeof realUrl === "string") {
                if (self._noCacheRex.test(realUrl))
                    realUrl += "&_t=" + (new Date() - 0);
                else
                    realUrl += "?_t=" + (new Date() - 0);
            }
            loader.load(realUrl, url, item, function (err, data) {
                if (err) {
                    cc.log(err);
                    self.cache[url] = null;
                    delete self.cache[url];
                    cb({status: 520, errorMessage: err}, null);
                } else {
                    self.cache[url] = data;
                    cb(null, data);
                }
            });
        },
        _noCacheRex: /\?/,

        /**
         * Get url with basePath.
         * @param {string} basePath
         * @param {string} [url]
         * @returns {*}
         */
        getUrl: function (basePath, url) {
            var self = this, path = cc.path;
            if (basePath !== undefined && url === undefined) {
                url = basePath;
                var type = path.extname(url);
                type = type ? type.toLowerCase() : "";
                var loader = _register[type];
                if (!loader)
                    basePath = self.resPath;
                else
                    basePath = loader.getBasePath ? loader.getBasePath() : self.resPath;
            }
            url = cc.path.join(basePath || "", url);
            if (url.match(/[\/(\\\\)]lang[\/(\\\\)]/i)) {
                if (_langPathCache[url])
                    return _langPathCache[url];
                var extname = path.extname(url) || "";
                url = _langPathCache[url] = url.substring(0, url.length - extname.length) + "_" + cc.sys.language + extname;
            }
            return url;
        },

        /**
         * Load resources then call the callback.
         * @param {string} resources
         * @param {function} [option] callback or trigger
         * @param {function|Object} [loadCallback]
         * @return {cc.AsyncPool}
         */
        load: function (resources, option, loadCallback) {
            var self = this;
            var len = arguments.length;
            if (len === 0)
                throw new Error("arguments error!");

            if (len === 3) {
                if (typeof option === "function") {
                    if (typeof loadCallback === "function")
                        option = {trigger: option, cb: loadCallback};
                    else
                        option = {cb: option, cbTarget: loadCallback};
                }
            } else if (len === 2) {
                if (typeof option === "function")
                    option = {cb: option};
            } else if (len === 1) {
                option = {};
            }

            if (!(resources instanceof Array))
                resources = [resources];
            var asyncPool = new cc.AsyncPool(
                resources, cc.CONCURRENCY_HTTP_REQUEST_COUNT,
                function (value, index, AsyncPoolCallback, aPool) {
                    self._loadResIterator(value, index, function (err) {
                        var arr = Array.prototype.slice.call(arguments, 1);
                        if (option.trigger)
                            option.trigger.call(option.triggerTarget, arr[0], aPool.size, aPool.finishedSize);   //call trigger
                        AsyncPoolCallback(err, arr[0]);
                    });
                },
                option.cb, option.cbTarget);
            asyncPool.flow();
            return asyncPool;
        },

        _handleAliases: function (fileNames, cb) {
            var self = this;
            var resList = [];
            for (var key in fileNames) {
                var value = fileNames[key];
                _aliases[key] = value;
                resList.push(value);
            }
            this.load(resList, cb);
        },

        /**
         * <p>
         *     Loads alias map from the contents of a filename.                                        <br/>
         *                                                                                                                 <br/>
         *     @note The plist file name should follow the format below:                                                   <br/>
         *     <?xml version="1.0" encoding="UTF-8"?>                                                                      <br/>
         *         <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">  <br/>
         *             <plist version="1.0">                                                                               <br/>
         *                 <dict>                                                                                          <br/>
         *                     <key>filenames</key>                                                                        <br/>
         *                     <dict>                                                                                      <br/>
         *                         <key>sounds/click.wav</key>                                                             <br/>
         *                         <string>sounds/click.caf</string>                                                       <br/>
         *                         <key>sounds/endgame.wav</key>                                                           <br/>
         *                         <string>sounds/endgame.caf</string>                                                     <br/>
         *                         <key>sounds/gem-0.wav</key>                                                             <br/>
         *                         <string>sounds/gem-0.caf</string>                                                       <br/>
         *                     </dict>                                                                                     <br/>
         *                     <key>metadata</key>                                                                         <br/>
         *                     <dict>                                                                                      <br/>
         *                         <key>version</key>                                                                      <br/>
         *                         <integer>1</integer>                                                                    <br/>
         *                     </dict>                                                                                     <br/>
         *                 </dict>                                                                                         <br/>
         *              </plist>                                                                                           <br/>
         * </p>
         * @param {String} url  The plist file name.
         * @param {Function} [callback]
         */
        loadAliases: function (url, callback) {
            var self = this, dict = self.getRes(url);
            if (!dict) {
                self.load(url, function (err, results) {
                    self._handleAliases(results[0]["filenames"], callback);
                });
            } else
                self._handleAliases(dict["filenames"], callback);
        },

        /**
         * Register a resource loader into loader.
         * @param {string} extNames
         * @param {function} loader
         */
        register: function (extNames, loader) {
            if (!extNames || !loader) return;
            var self = this;
            if (typeof extNames === "string")
                return _register[extNames.trim().toLowerCase()] = loader;
            for (var i = 0, li = extNames.length; i < li; i++) {
                _register["." + extNames[i].trim().toLowerCase()] = loader;
            }
        },

        /**
         * Get resource data by url.
         * @param url
         * @returns {*}
         */
        getRes: function (url) {
            return this.cache[url] || this.cache[_aliases[url]];
        },

        /**
         * Get aliase by url.
         * @param url
         * @returns {*}
         */
        _getAliase: function (url) {
            return _aliases[url];
        },

        /**
         * Release the cache of resource by url.
         * @param url
         */
        release: function (url) {
            var cache = this.cache;
            var queue = _queue[url];
            if (queue) {
                queue.img = null;
                delete _queue[url];
            }
            delete cache[url];
            delete cache[_aliases[url]];
            delete _aliases[url];
        },

        /**
         * Resource cache of all resources.
         */
        releaseAll: function () {
            var locCache = this.cache;
            for (var key in locCache)
                delete locCache[key];
            for (var key in _aliases)
                delete _aliases[key];
        }
    };
})();
//+++++++++++++++++++++++++something about loader end+++++++++++++++++++++++++++++

/**
 * A string tool to construct a string with format string.
 * for example:
 *      cc.formatStr("a: %d, b: %b", a, b);
 *      cc.formatStr(a, b, c);
 * @returns {String}
 */
cc.formatStr = function () {
    var args = arguments;
    var l = args.length;
    if (l < 1)
        return "";

    var str = args[0];
    var needToFormat = true;
    if (typeof str === "object") {
        needToFormat = false;
    }
    for (var i = 1; i < l; ++i) {
        var arg = args[i];
        if (needToFormat) {
            while (true) {
                var result = null;
                if (typeof arg === "number") {
                    result = str.match(/(%d)|(%s)/);
                    if (result) {
                        str = str.replace(/(%d)|(%s)/, arg);
                        break;
                    }
                }
                result = str.match(/%s/);
                if (result)
                    str = str.replace(/%s/, arg);
                else
                    str += "    " + arg;
                break;
            }
        } else
            str += "    " + arg;
    }
    return str;
};


//+++++++++++++++++++++++++Engine initialization function begin+++++++++++++++++++++++++++
(function () {

var _tmpCanvas1 = document.createElement("canvas"),
    _tmpCanvas2 = document.createElement("canvas");

cc.create3DContext = function (canvas, opt_attribs) {
    var names = ["webgl", "experimental-webgl", "webkit-3d", "moz-webgl"];
    var context = null;
    for (var ii = 0; ii < names.length; ++ii) {
        try {
            context = canvas.getContext(names[ii], opt_attribs);
        } catch (e) {
        }
        if (context) {
            break;
        }
    }
    return context;
};

var _initSys = function () {
    /**
     * System variables
     * @namespace
     * @name cc.sys
     */
    cc.sys = {};
    var sys = cc.sys;

    /**
     * English language code
     * @memberof cc.sys
     * @name LANGUAGE_ENGLISH
     * @constant
     * @type {Number}
     */
    sys.LANGUAGE_ENGLISH = "en";

    /**
     * Chinese language code
     * @memberof cc.sys
     * @name LANGUAGE_CHINESE
     * @constant
     * @type {Number}
     */
    sys.LANGUAGE_CHINESE = "zh";

    /**
     * French language code
     * @memberof cc.sys
     * @name LANGUAGE_FRENCH
     * @constant
     * @type {Number}
     */
    sys.LANGUAGE_FRENCH = "fr";

    /**
     * Italian language code
     * @memberof cc.sys
     * @name LANGUAGE_ITALIAN
     * @constant
     * @type {Number}
     */
    sys.LANGUAGE_ITALIAN = "it";

    /**
     * German language code
     * @memberof cc.sys
     * @name LANGUAGE_GERMAN
     * @constant
     * @type {Number}
     */
    sys.LANGUAGE_GERMAN = "de";

    /**
     * Spanish language code
     * @memberof cc.sys
     * @name LANGUAGE_SPANISH
     * @constant
     * @type {Number}
     */
    sys.LANGUAGE_SPANISH = "es";

    /**
     * Spanish language code
     * @memberof cc.sys
     * @name LANGUAGE_DUTCH
     * @constant
     * @type {Number}
     */
    sys.LANGUAGE_DUTCH = "du";

    /**
     * Russian language code
     * @memberof cc.sys
     * @name LANGUAGE_RUSSIAN
     * @constant
     * @type {Number}
     */
    sys.LANGUAGE_RUSSIAN = "ru";

    /**
     * Korean language code
     * @memberof cc.sys
     * @name LANGUAGE_KOREAN
     * @constant
     * @type {Number}
     */
    sys.LANGUAGE_KOREAN = "ko";

    /**
     * Japanese language code
     * @memberof cc.sys
     * @name LANGUAGE_JAPANESE
     * @constant
     * @type {Number}
     */
    sys.LANGUAGE_JAPANESE = "ja";

    /**
     * Hungarian language code
     * @memberof cc.sys
     * @name LANGUAGE_HUNGARIAN
     * @constant
     * @type {Number}
     */
    sys.LANGUAGE_HUNGARIAN = "hu";

    /**
     * Portuguese language code
     * @memberof cc.sys
     * @name LANGUAGE_PORTUGUESE
     * @constant
     * @type {Number}
     */
    sys.LANGUAGE_PORTUGUESE = "pt";

    /**
     * Arabic language code
     * @memberof cc.sys
     * @name LANGUAGE_ARABIC
     * @constant
     * @type {Number}
     */
    sys.LANGUAGE_ARABIC = "ar";

    /**
     * Norwegian language code
     * @memberof cc.sys
     * @name LANGUAGE_NORWEGIAN
     * @constant
     * @type {Number}
     */
    sys.LANGUAGE_NORWEGIAN = "no";

    /**
     * Polish language code
     * @memberof cc.sys
     * @name LANGUAGE_POLISH
     * @constant
     * @type {Number}
     */
    sys.LANGUAGE_POLISH = "pl";

    /**
     * Unknown language code
     * @memberof cc.sys
     * @name LANGUAGE_UNKNOWN
     * @constant
     * @type {Number}
     */
    sys.LANGUAGE_UNKNOWN = "unkonwn";

    /**
     * @memberof cc.sys
     * @name OS_IOS
     * @constant
     * @type {string}
     */
    sys.OS_IOS = "iOS";
    /**
     * @memberof cc.sys
     * @name OS_ANDROID
     * @constant
     * @type {string}
     */
    sys.OS_ANDROID = "Android";
    /**
     * @memberof cc.sys
     * @name OS_WINDOWS
     * @constant
     * @type {string}
     */
    sys.OS_WINDOWS = "Windows";
    /**
     * @memberof cc.sys
     * @name OS_MARMALADE
     * @constant
     * @type {string}
     */
    sys.OS_MARMALADE = "Marmalade";
    /**
     * @memberof cc.sys
     * @name OS_LINUX
     * @constant
     * @type {string}
     */
    sys.OS_LINUX = "Linux";
    /**
     * @memberof cc.sys
     * @name OS_BADA
     * @constant
     * @type {string}
     */
    sys.OS_BADA = "Bada";
    /**
     * @memberof cc.sys
     * @name OS_BLACKBERRY
     * @constant
     * @type {string}
     */
    sys.OS_BLACKBERRY = "Blackberry";
    /**
     * @memberof cc.sys
     * @name OS_OSX
     * @constant
     * @type {string}
     */
    sys.OS_OSX = "OS X";
    /**
     * @memberof cc.sys
     * @name OS_WP8
     * @constant
     * @type {string}
     */
    sys.OS_WP8 = "WP8";
    /**
     * @memberof cc.sys
     * @name OS_WINRT
     * @constant
     * @type {string}
     */
    sys.OS_WINRT = "WINRT";
    /**
     * @memberof cc.sys
     * @name OS_UNKNOWN
     * @constant
     * @type {string}
     */
    sys.OS_UNKNOWN = "Unknown";

    /**
     * @memberof cc.sys
     * @name UNKNOWN
     * @constant
     * @default
     * @type {Number}
     */
    sys.UNKNOWN = -1;
    /**
     * @memberof cc.sys
     * @name WIN32
     * @constant
     * @default
     * @type {Number}
     */
    sys.WIN32 = 0;
    /**
     * @memberof cc.sys
     * @name LINUX
     * @constant
     * @default
     * @type {Number}
     */
    sys.LINUX = 1;
    /**
     * @memberof cc.sys
     * @name MACOS
     * @constant
     * @default
     * @type {Number}
     */
    sys.MACOS = 2;
    /**
     * @memberof cc.sys
     * @name ANDROID
     * @constant
     * @default
     * @type {Number}
     */
    sys.ANDROID = 3;
    /**
     * @memberof cc.sys
     * @name IOS
     * @constant
     * @default
     * @type {Number}
     */
    sys.IPHONE = 4;
    /**
     * @memberof cc.sys
     * @name IOS
     * @constant
     * @default
     * @type {Number}
     */
    sys.IPAD = 5;
    /**
     * @memberof cc.sys
     * @name BLACKBERRY
     * @constant
     * @default
     * @type {Number}
     */
    sys.BLACKBERRY = 6;
    /**
     * @memberof cc.sys
     * @name NACL
     * @constant
     * @default
     * @type {Number}
     */
    sys.NACL = 7;
    /**
     * @memberof cc.sys
     * @name EMSCRIPTEN
     * @constant
     * @default
     * @type {Number}
     */
    sys.EMSCRIPTEN = 8;
    /**
     * @memberof cc.sys
     * @name TIZEN
     * @constant
     * @default
     * @type {Number}
     */
    sys.TIZEN = 9;
    /**
     * @memberof cc.sys
     * @name WINRT
     * @constant
     * @default
     * @type {Number}
     */
    sys.WINRT = 10;
    /**
     * @memberof cc.sys
     * @name WP8
     * @constant
     * @default
     * @type {Number}
     */
    sys.WP8 = 11;
    /**
     * @memberof cc.sys
     * @name MOBILE_BROWSER
     * @constant
     * @default
     * @type {Number}
     */
    sys.MOBILE_BROWSER = 100;
    /**
     * @memberof cc.sys
     * @name DESKTOP_BROWSER
     * @constant
     * @default
     * @type {Number}
     */
    sys.DESKTOP_BROWSER = 101;

    sys.BROWSER_TYPE_WECHAT = "wechat";
    sys.BROWSER_TYPE_ANDROID = "androidbrowser";
    sys.BROWSER_TYPE_IE = "ie";
    sys.BROWSER_TYPE_QQ_APP = "qq"; // QQ App
    sys.BROWSER_TYPE_QQ = "qqbrowser";
    sys.BROWSER_TYPE_MOBILE_QQ = "mqqbrowser";
    sys.BROWSER_TYPE_UC = "ucbrowser";
    sys.BROWSER_TYPE_360 = "360browser";
    sys.BROWSER_TYPE_BAIDU_APP = "baiduboxapp";
    sys.BROWSER_TYPE_BAIDU = "baidubrowser";
    sys.BROWSER_TYPE_MAXTHON = "maxthon";
    sys.BROWSER_TYPE_OPERA = "opera";
    sys.BROWSER_TYPE_OUPENG = "oupeng";
    sys.BROWSER_TYPE_MIUI = "miuibrowser";
    sys.BROWSER_TYPE_FIREFOX = "firefox";
    sys.BROWSER_TYPE_SAFARI = "safari";
    sys.BROWSER_TYPE_CHROME = "chrome";
    sys.BROWSER_TYPE_LIEBAO = "liebao";
    sys.BROWSER_TYPE_QZONE = "qzone";
    sys.BROWSER_TYPE_SOUGOU = "sogou";
    sys.BROWSER_TYPE_UNKNOWN = "unknown";

    /**
     * Is native ? This is set to be true in jsb auto.
     * @memberof cc.sys
     * @name isNative
     * @type {Boolean}
     */
    sys.isNative = false;

    var win = window, nav = win.navigator, doc = document, docEle = doc.documentElement;
    var ua = nav.userAgent.toLowerCase();

    /**
     * Indicate whether system is mobile system
     * @memberof cc.sys
     * @name isMobile
     * @type {Boolean}
     */
    sys.isMobile = /mobile|android|iphone|ipad/.test(ua);

    /**
     * Indicate the running platform
     * @memberof cc.sys
     * @name platform
     * @type {Number}
     */
    sys.platform = sys.isMobile ? sys.MOBILE_BROWSER : sys.DESKTOP_BROWSER;

    var currLanguage = nav.language;
    currLanguage = currLanguage ? currLanguage : nav.browserLanguage;
    currLanguage = currLanguage ? currLanguage.split("-")[0] : sys.LANGUAGE_ENGLISH;

    /**
     * Indicate the current language of the running system
     * @memberof cc.sys
     * @name language
     * @type {String}
     */
    sys.language = currLanguage;

    // Get the os of system
    var isAndroid = false, iOS = false, osVersion = '', osMainVersion = 0;
    var uaResult = /android (\d+(?:\.\d+)+)/i.exec(ua) || /android (\d+(?:\.\d+)+)/i.exec(nav.platform);
    if (uaResult) {
        isAndroid = true;
        osVersion = uaResult[1] || '';
        osMainVersion = parseInt(osVersion) || 0;
    }
    uaResult = /(iPad|iPhone|iPod).*OS ((\d+_?){2,3})/i.exec(ua);
    if (uaResult) {
        iOS = true;
        osVersion = uaResult[2] || '';
        osMainVersion = parseInt(osVersion) || 0;
    } 
    else if (/(iPhone|iPad|iPod)/.exec(nav.platform)) {
        iOS = true;
        osVersion = '';
        osMainVersion = 0;
    }

    var osName = sys.OS_UNKNOWN;
    if (nav.appVersion.indexOf("Win") !== -1) osName = sys.OS_WINDOWS;
    else if (iOS) osName = sys.OS_IOS;
    else if (nav.appVersion.indexOf("Mac") !== -1) osName = sys.OS_OSX;
    else if (nav.appVersion.indexOf("X11") !== -1 && nav.appVersion.indexOf("Linux") === -1) osName = sys.OS_UNIX;
    else if (isAndroid) osName = sys.OS_ANDROID;
    else if (nav.appVersion.indexOf("Linux") !== -1) osName = sys.OS_LINUX;

    /**
     * Indicate the running os name
     * @memberof cc.sys
     * @name os
     * @type {String}
     */
    sys.os = osName;
    /**
     * Indicate the running os version string
     * @memberof cc.sys
     * @name osVersion
     * @type {String}
     */
    sys.osVersion = osVersion;
    /**
     * Indicate the running os main version number
     * @memberof cc.sys
     * @name osMainVersion
     * @type {Number}
     */
    sys.osMainVersion = osMainVersion;

    /**
     * Indicate the running browser type
     * @memberof cc.sys
     * @name browserType
     * @type {String}
     */
    sys.browserType = sys.BROWSER_TYPE_UNKNOWN;
    /* Determine the browser type */
    (function(){
        var typeReg1 = /micromessenger|mqqbrowser|sogou|qzone|liebao|ucbrowser|360 aphone|360browser|baiduboxapp|baidubrowser|maxthon|mxbrowser|trident|miuibrowser/i;
        var typeReg2 = /qqbrowser|qq|chrome|safari|firefox|opr|oupeng|opera/i;
        var browserTypes = typeReg1.exec(ua);
        if(!browserTypes) browserTypes = typeReg2.exec(ua);
        var browserType = browserTypes ? browserTypes[0] : sys.BROWSER_TYPE_UNKNOWN;
        if (browserType === 'micromessenger')
            browserType = sys.BROWSER_TYPE_WECHAT;
        else if (browserType === "safari" && isAndroid)
            browserType = sys.BROWSER_TYPE_ANDROID;
        else if (browserType === "trident")
            browserType = sys.BROWSER_TYPE_IE;
        else if (browserType === "360 aphone")
            browserType = sys.BROWSER_TYPE_360;
        else if (browserType === "mxbrowser")
            browserType = sys.BROWSER_TYPE_MAXTHON;
        else if (browserType === "opr")
            browserType = sys.BROWSER_TYPE_OPERA;

        sys.browserType = browserType;
    })();

    /**
     * Indicate the running browser version
     * @memberof cc.sys
     * @name browserVersion
     * @type {String}
     */
    sys.browserVersion = "";
    /* Determine the browser version number */
    (function(){
        var versionReg1 = /(mqqbrowser|micromessenger|sogou|qzone|liebao|maxthon|mxbrowser|baidu)(mobile)?(browser)?\/?([\d.]+)/i;
        var versionReg2 = /(msie |rv:|firefox|chrome|ucbrowser|qq|oupeng|opera|opr|safari|miui)(mobile)?(browser)?\/?([\d.]+)/i;
        var tmp = ua.match(versionReg1);
        if(!tmp) tmp = ua.match(versionReg2);
        sys.browserVersion = tmp ? tmp[4] : "";
    })();

    var w = window.innerWidth || document.documentElement.clientWidth;
    var h = window.innerHeight || document.documentElement.clientHeight;
    var ratio = window.devicePixelRatio || 1;

    /**
     * Indicate the real pixel resolution of the whole game window
     * @memberof cc.sys
     * @name windowPixelResolution
     * @type {Size}
     */
    sys.windowPixelResolution = {
        width: ratio * w,
        height: ratio * h
    };

    sys._checkWebGLRenderMode = function () {
        if (cc._renderType !== cc.game.RENDER_TYPE_WEBGL)
            throw new Error("This feature supports WebGL render mode only.");
    };

    //Whether or not the Canvas BlendModes are supported.
    sys._supportCanvasNewBlendModes = (function(){
        var canvas = _tmpCanvas1;
        canvas.width = 1;
        canvas.height = 1;
        var context = canvas.getContext('2d');
        context.fillStyle = '#000';
        context.fillRect(0, 0, 1, 1);
        context.globalCompositeOperation = 'multiply';

        var canvas2 = _tmpCanvas2;
        canvas2.width = 1;
        canvas2.height = 1;
        var context2 = canvas2.getContext('2d');
        context2.fillStyle = '#fff';
        context2.fillRect(0, 0, 1, 1);
        context.drawImage(canvas2, 0, 0, 1, 1);

        return context.getImageData(0, 0, 1, 1).data[0] === 0;
    })();

    // Adjust mobile css settings
    if (cc.sys.isMobile) {
        var fontStyle = document.createElement("style");
        fontStyle.type = "text/css";
        document.body.appendChild(fontStyle);

        fontStyle.textContent = "body,canvas,div{ -moz-user-select: none;-webkit-user-select: none;-ms-user-select: none;-khtml-user-select: none;"
                                + "-webkit-tap-highlight-color:rgba(0,0,0,0);}";
    }

    /**
     * cc.sys.localStorage is a local storage component.
     * @memberof cc.sys
     * @name localStorage
     * @type {Object}
     */
    try {
        var localStorage = sys.localStorage = win.localStorage;
        localStorage.setItem("storage", "");
        localStorage.removeItem("storage");
        localStorage = null;
    } catch (e) {
        var warn = function () {
            cc.warn("Warning: localStorage isn't enabled. Please confirm browser cookie or privacy option");
        };
        sys.localStorage = {
            getItem : warn,
            setItem : warn,
            removeItem : warn,
            clear : warn
        };
    }

    var _supportCanvas = !!_tmpCanvas1.getContext("2d");
    var _supportWebGL = false;
    if (win.WebGLRenderingContext) {
        var tmpCanvas = document.createElement("CANVAS");
        try{
            var context = cc.create3DContext(tmpCanvas);
            if (context) {
                _supportWebGL = true;
            }

            if (_supportWebGL && sys.os === sys.OS_IOS && sys.osMainVersion === 9) {
                // Not activating WebGL in iOS 9 UIWebView because it may crash when entering background
                if (!window.indexedDB) {
                    _supportWebGL = false;
                }
            }

            if (_supportWebGL && sys.os === sys.OS_ANDROID) {
                var browserVer = parseFloat(sys.browserVersion);
                switch (sys.browserType) {
                case sys.BROWSER_TYPE_MOBILE_QQ:
                case sys.BROWSER_TYPE_BAIDU:
                case sys.BROWSER_TYPE_BAIDU_APP:
                    // QQ & Baidu Brwoser 6.2+ (using blink kernel)
                    if (browserVer >= 6.2) {
                        _supportWebGL = true;
                    }
                    else {
                        _supportWebGL = false;
                    }
                    break;
                case sys.BROWSER_TYPE_CHROME:
                    // Chrome on android supports WebGL from v.30
                    if(browserVer >= 30.0) {
                      _supportWebGL = true;
                    } else {
                      _supportWebGL = false;
                    }
                    break;
                case sys.BROWSER_TYPE_ANDROID:
                    // Android 5+ default browser
                    if (sys.osMainVersion && sys.osMainVersion >= 5) {
                        _supportWebGL = true;
                    }
                    break;
                case sys.BROWSER_TYPE_UNKNOWN:
                case sys.BROWSER_TYPE_360:
                case sys.BROWSER_TYPE_MIUI:
                case sys.BROWSER_TYPE_UC:
                    _supportWebGL = false;
                }
            }
        }
        catch (e) {}
        tmpCanvas = null;
    }

    /**
     * The capabilities of the current platform
     * @memberof cc.sys
     * @name capabilities
     * @type {Object}
     */
    var capabilities = sys.capabilities = {
        "canvas": _supportCanvas,
        "opengl": _supportWebGL
    };
    if (docEle['ontouchstart'] !== undefined || doc['ontouchstart'] !== undefined || nav.msPointerEnabled)
        capabilities["touches"] = true;
    if (docEle['onmouseup'] !== undefined)
        capabilities["mouse"] = true;
    if (docEle['onkeyup'] !== undefined)
        capabilities["keyboard"] = true;
    if (win.DeviceMotionEvent || win.DeviceOrientationEvent)
        capabilities["accelerometer"] = true;

    /**
     * Forces the garbage collection, only available in JSB
     * @memberof cc.sys
     * @name garbageCollect
     * @function
     */
    sys.garbageCollect = function () {
        // N/A in cocos2d-html5
    };

    /**
     * Dumps rooted objects, only available in JSB
     * @memberof cc.sys
     * @name dumpRoot
     * @function
     */
    sys.dumpRoot = function () {
        // N/A in cocos2d-html5
    };

    /**
     * Restart the JS VM, only available in JSB
     * @memberof cc.sys
     * @name restartVM
     * @function
     */
    sys.restartVM = function () {
        // N/A in cocos2d-html5
    };

    /**
     * Clean a script in the JS VM, only available in JSB
     * @memberof cc.sys
     * @name cleanScript
     * @param {String} jsfile
     * @function
     */
    sys.cleanScript = function (jsfile) {
        // N/A in cocos2d-html5
    };

    /**
     * Check whether an object is valid,
     * In web engine, it will return true if the object exist
     * In native engine, it will return true if the JS object and the correspond native object are both valid
     * @memberof cc.sys
     * @name isObjectValid
     * @param {Object} obj
     * @return {boolean} Validity of the object
     * @function
     */
    sys.isObjectValid = function (obj) {
        if (obj) return true;
        else return false;
    };

    /**
     * Dump system informations
     * @memberof cc.sys
     * @name dump
     * @function
     */
    sys.dump = function () {
        var self = this;
        var str = "";
        str += "isMobile : " + self.isMobile + "\r\n";
        str += "language : " + self.language + "\r\n";
        str += "browserType : " + self.browserType + "\r\n";
        str += "browserVersion : " + self.browserVersion + "\r\n";
        str += "capabilities : " + JSON.stringify(self.capabilities) + "\r\n";
        str += "os : " + self.os + "\r\n";
        str += "osVersion : " + self.osVersion + "\r\n";
        str += "platform : " + self.platform + "\r\n";
        str += "Using " + (cc._renderType === cc.game.RENDER_TYPE_WEBGL ? "WEBGL" : "CANVAS") + " renderer." + "\r\n";
        cc.log(str);
    };

    /**
     * Open a url in browser
     * @memberof cc.sys
     * @name openURL
     * @param {String} url
     */
    sys.openURL = function(url){
        window.open(url);
    };

    /**
     * Get the number of milliseconds elapsed since 1 January 1970 00:00:00 UTC.
     * @memberof cc.sys
     * @name now
     * @return {Number}
     */
    sys.now = function () {
        if (Date.now) {
            return Date.now();
        }
        else {
            return +(new Date);
        }
    };
};
_initSys();

_tmpCanvas1 = null;
_tmpCanvas2 = null;

//to make sure the cc.log, cc.warn, cc.error and cc.assert would not throw error before init by debugger mode.
cc.log = cc.warn = cc.error = cc.assert = function () {
};

var _config = null,
    //cache for js and module that has added into jsList to be loaded.
    _jsAddedCache = {},
    _engineInitCalled = false,
    _engineLoadedCallback = null;

cc._engineLoaded = false;

function _determineRenderType(config) {
    var CONFIG_KEY = cc.game.CONFIG_KEY,
        userRenderMode = parseInt(config[CONFIG_KEY.renderMode]) || 0;

    // Adjust RenderType
    if (isNaN(userRenderMode) || userRenderMode > 2 || userRenderMode < 0)
        config[CONFIG_KEY.renderMode] = 0;

    // Determine RenderType
    cc._renderType = cc.game.RENDER_TYPE_CANVAS;
    cc._supportRender = false;

    if (userRenderMode === 0) {
        if (cc.sys.capabilities["opengl"]) {
            cc._renderType = cc.game.RENDER_TYPE_WEBGL;
            cc._supportRender = true;
        }
        else if (cc.sys.capabilities["canvas"]) {
            cc._renderType = cc.game.RENDER_TYPE_CANVAS;
            cc._supportRender = true;
        }
    }
    else if (userRenderMode === 1 && cc.sys.capabilities["canvas"]) {
        cc._renderType = cc.game.RENDER_TYPE_CANVAS;
        cc._supportRender = true;
    }
    else if (userRenderMode === 2 && cc.sys.capabilities["opengl"]) {
        cc._renderType = cc.game.RENDER_TYPE_WEBGL;
        cc._supportRender = true;
    }
}

function _getJsListOfModule(moduleMap, moduleName, dir) {
    if (_jsAddedCache[moduleName]) return null;
    dir = dir || "";
    var jsList = [];
    var tempList = moduleMap[moduleName];
    if (!tempList) throw new Error("can not find module [" + moduleName + "]");
    var ccPath = cc.path;
    for (var i = 0, li = tempList.length; i < li; i++) {
        var item = tempList[i];
        if (_jsAddedCache[item]) continue;
        var extname = ccPath.extname(item);
        if (!extname) {
            var arr = _getJsListOfModule(moduleMap, item, dir);
            if (arr) jsList = jsList.concat(arr);
        } else if (extname.toLowerCase() === ".js") jsList.push(ccPath.join(dir, item));
        _jsAddedCache[item] = 1;
    }
    return jsList;
}

function _afterEngineLoaded(config) {
    if (cc._initDebugSetting)
        cc._initDebugSetting(config[cc.game.CONFIG_KEY.debugMode]);
    cc._engineLoaded = true;
    console.log(cc.ENGINE_VERSION);
    if (_engineLoadedCallback) _engineLoadedCallback();
}

function _load(config) {
    var self = this;
    var CONFIG_KEY = cc.game.CONFIG_KEY, engineDir = config[CONFIG_KEY.engineDir], loader = cc.loader;

    if (cc.Class) {
        // Single file loaded
        _afterEngineLoaded(config);
    } else {
        // Load cocos modules
        var ccModulesPath = cc.path.join(engineDir, "moduleConfig.json");
        loader.loadJson(ccModulesPath, function (err, modulesJson) {
            if (err) throw new Error(err);
            var modules = config["modules"] || [];
            var moduleMap = modulesJson["module"];
            var jsList = [];
            if (cc.sys.capabilities["opengl"] && modules.indexOf("base4webgl") < 0) modules.splice(0, 0, "base4webgl");
            else if (modules.indexOf("core") < 0) modules.splice(0, 0, "core");
            for (var i = 0, li = modules.length; i < li; i++) {
                var arr = _getJsListOfModule(moduleMap, modules[i], engineDir);
                if (arr) jsList = jsList.concat(arr);
            }
            cc.loader.loadJsWithImg(jsList, function (err) {
                if (err) throw err;
                _afterEngineLoaded(config);
            });
        });
    }
}

function _windowLoaded() {
    this.removeEventListener('load', _windowLoaded, false);
    _load(cc.game.config);
}

cc.initEngine = function (config, cb) {
    if (_engineInitCalled) {
        var previousCallback = _engineLoadedCallback;
        _engineLoadedCallback = function () {
            previousCallback && previousCallback();
            cb && cb();
        }
        return;
    }

    _engineLoadedCallback = cb;

    // Config uninitialized and given, initialize with it
    if (!cc.game.config && config) {
        cc.game.config = config;
    }
    // No config given and no config set before, load it
    else if (!cc.game.config) {
        cc.game._loadConfig();
    }
    config = cc.game.config;

    _determineRenderType(config);

    document.body ? _load(config) : cc._addEventListener(window, 'load', _windowLoaded, false);
    _engineInitCalled = true;
};

})();
//+++++++++++++++++++++++++Engine initialization function end+++++++++++++++++++++++++++++

//+++++++++++++++++++++++++something about CCGame begin+++++++++++++++++++++++++++
/**
 * An object to boot the game.
 * @class
 * @name cc.game
 *
 */
cc.game = /** @lends cc.game# */{
    /**
     * Debug mode: No debugging. {@static}
     * @const {Number}
     * @static
     */
    DEBUG_MODE_NONE: 0,
    /**
     * Debug mode: Info, warning, error to console.
     * @const {Number}
     * @static
     */
    DEBUG_MODE_INFO: 1,
    /**
     * Debug mode: Warning, error to console.
     * @const {Number}
     * @static
     */
    DEBUG_MODE_WARN: 2,
    /**
     * Debug mode: Error to console.
     * @const {Number}
     * @static
     */
    DEBUG_MODE_ERROR: 3,
    /**
     * Debug mode: Info, warning, error to web page.
     * @const {Number}
     * @static
     */
    DEBUG_MODE_INFO_FOR_WEB_PAGE: 4,
    /**
     * Debug mode: Warning, error to web page.
     * @const {Number}
     * @static
     */
    DEBUG_MODE_WARN_FOR_WEB_PAGE: 5,
    /**
     * Debug mode: Error to web page.
     * @const {Number}
     * @static
     */
    DEBUG_MODE_ERROR_FOR_WEB_PAGE: 6,

    /**
     * Event that is fired when the game is hidden.
     * @constant {String}
     */
    EVENT_HIDE: "game_on_hide",
    /**
     * Event that is fired when the game is shown.
     * @constant {String}
     */
    EVENT_SHOW: "game_on_show",
    /**
     * Event that is fired when the game is resized.
     * @constant {String}
     */
    EVENT_RESIZE: "game_on_resize",
    /**
     * Event that is fired when the renderer is done being initialized.
     * @constant {String}
     */
    EVENT_RENDERER_INITED: "renderer_inited",

    /** @constant {Number} */
    RENDER_TYPE_CANVAS: 0,
    /** @constant {Number} */
    RENDER_TYPE_WEBGL: 1,
    /** @constant {Number} */
    RENDER_TYPE_OPENGL: 2,

    _eventHide: null,
    _eventShow: null,

    /**
     * Keys found in project.json.
     *
     * @constant
     * @type {Object}
     *
     * @prop {String} engineDir         - In debug mode, if you use the whole engine to develop your game, you should specify its relative path with "engineDir".
     * @prop {String} modules           - Defines which modules you will need in your game, it's useful only on web
     * @prop {String} debugMode         - Debug mode, see DEBUG_MODE_XXX constant definitions.
     * @prop {String} exposeClassName   - Expose class name to chrome debug tools
     * @prop {String} showFPS           - Left bottom corner fps information will show when "showFPS" equals true, otherwise it will be hide.
     * @prop {String} frameRate         - Sets the wanted frame rate for your game, but the real fps depends on your game implementation and the running environment.
     * @prop {String} id                - Sets the id of your canvas element on the web page, it's useful only on web.
     * @prop {String} renderMode        - Sets the renderer type, only useful on web, 0: Automatic, 1: Canvas, 2: WebGL
     * @prop {String} jsList            - Sets the list of js files in your game.
     */
    CONFIG_KEY: {
        width: "width",
        height: "height",
        engineDir: "engineDir",
        modules: "modules",
        debugMode: "debugMode",
        exposeClassName: "exposeClassName",
        showFPS: "showFPS",
        frameRate: "frameRate",
        id: "id",
        renderMode: "renderMode",
        jsList: "jsList"
    },

    // states
    _paused: true,//whether the game is paused
    _configLoaded: false,//whether config loaded
    _prepareCalled: false,//whether the prepare function has been called
    _prepared: false,//whether the engine has prepared
    _rendererInitialized: false,

    _renderContext: null,

    _intervalId: null,//interval target of main

    _lastTime: null,
    _frameTime: null,

    /**
     * The outer frame of the game canvas, parent of cc.container
     * @type {Object}
     */
    frame: null,
    /**
     * The container of game canvas, equals to cc.container
     * @type {Object}
     */
    container: null,
    /**
     * The canvas of the game, equals to cc._canvas
     * @type {Object}
     */
    canvas: null,

    /**
     * Config of game
     * @type {Object}
     */
    config: null,

    /**
     * Callback when the scripts of engine have been load.
     * @type {Function|null}
     */
    onStart: null,

    /**
     * Callback when game exits.
     * @type {Function|null}
     */
    onStop: null,

//@Public Methods

//  @Game play control
    /**
     * Set frameRate of game.
     * @param frameRate
     */
    setFrameRate: function (frameRate) {
        var self = this, config = self.config, CONFIG_KEY = self.CONFIG_KEY;
        config[CONFIG_KEY.frameRate] = frameRate;
        if (self._intervalId)
            window.cancelAnimationFrame(self._intervalId);
        self._intervalId = 0;
        self._paused = true;
        self._setAnimFrame();
        self._runMainLoop();
    },

    /**
     * Run the game frame by frame.
     */
    step: function () {
        cc.director.mainLoop();
    },

    /**
     * Pause the game.
     */
    pause: function () {
        if (this._paused) return;
        this._paused = true;
        // Pause audio engine
        if (cc.audioEngine) {
            cc.audioEngine._pausePlaying();
        }
        // Pause main loop
        if (this._intervalId)
            window.cancelAnimationFrame(this._intervalId);
        this._intervalId = 0;
    },

    /**
     * Resume the game from pause.
     */
    resume: function () {
        if (!this._paused) return;
        this._paused = false;
        // Resume audio engine
        if (cc.audioEngine) {
            cc.audioEngine._resumePlaying();
        }
        // Resume main loop
        this._runMainLoop();
    },

    /**
     * Check whether the game is paused.
     */
    isPaused: function () {
        return this._paused;
    },

    /**
     * Restart game.
     */
    restart: function () {
        cc.director.popToSceneStackLevel(0);
        // Clean up audio
        cc.audioEngine && cc.audioEngine.end();

        cc.game.onStart();
    },

    /**
     * End game, it will close the game window
     */
    end: function () {
        close();
    },

//  @Game loading
    /**
     * Prepare game.
     * @param cb
     */
    prepare: function (cb) {
        var self = this,
            config = self.config,
            CONFIG_KEY = self.CONFIG_KEY;

        // Config loaded
        if (!this._configLoaded) {
            this._loadConfig(function () {
                self.prepare(cb);
            });
            return;
        }

        // Already prepared
        if (this._prepared) {
            if (cb) cb();
            return;
        }
        // Prepare called, but not done yet
        if (this._prepareCalled) {
            return;
        }
        // Prepare never called and engine ready
        if (cc._engineLoaded) {
            this._prepareCalled = true;

            this._initRenderer(config[CONFIG_KEY.width], config[CONFIG_KEY.height]);

            /**
             * cc.view is the shared view object.
             * @type {cc.EGLView}
             * @name cc.view
             * @memberof cc
             */
            cc.view = cc.EGLView._getInstance();

            /**
             * @type {cc.Director}
             * @name cc.director
             * @memberof cc
             */
            cc.director = cc.Director._getInstance();
            if (cc.director.setOpenGLView)
                cc.director.setOpenGLView(cc.view);
            /**
             * cc.winSize is the alias object for the size of the current game window.
             * @type {cc.Size}
             * @name cc.winSize
             * @memberof cc
             */
            cc.winSize = cc.director.getWinSize();

            this._initEvents();

            this._setAnimFrame();
            this._runMainLoop();

            // Load game scripts
            var jsList = config[CONFIG_KEY.jsList];
            if (jsList) {
                cc.loader.loadJsWithImg(jsList, function (err) {
                    if (err) throw new Error(err);
                    self._prepared = true;
                    if (cb) cb();
                });
            }
            else {
                if (cb) cb();
            }

            return;
        }

        // Engine not loaded yet
        cc.initEngine(this.config, function () {
            self.prepare(cb);
        });
    },

    /**
     * Run game with configuration object and onStart function.
     * @param {Object|Function} [config] Pass configuration object or onStart function
     * @param {onStart} [onStart] onStart function to be executed after game initialized
     */
    run: function (config, onStart) {
        if (typeof config === 'function') {
            cc.game.onStart = config;
        }
        else {
            if (config) {
                if (typeof config === 'string') {
                    if (!cc.game.config) this._loadConfig();
                    cc.game.config[cc.game.CONFIG_KEY.id] = config;
                } else {
                    cc.game.config = config;
                }
            }
            if (typeof onStart === 'function') {
                cc.game.onStart = onStart;
            }
        }

        this.prepare(cc.game.onStart && cc.game.onStart.bind(cc.game));
    },

//@Private Methods

//  @Time ticker section
    _setAnimFrame: function () {
        this._lastTime = new Date();
        var frameRate = cc.game.config[cc.game.CONFIG_KEY.frameRate];
        this._frameTime = 1000 / frameRate;
        if (frameRate !== 60 && frameRate !== 30) {
            window.requestAnimFrame = this._stTime;
            window.cancelAnimationFrame = this._ctTime;
        }
        else {
            window.requestAnimFrame = window.requestAnimationFrame ||
            window.webkitRequestAnimationFrame ||
            window.mozRequestAnimationFrame ||
            window.oRequestAnimationFrame ||
            window.msRequestAnimationFrame ||
            this._stTime;
            window.cancelAnimationFrame = window.cancelAnimationFrame ||
            window.cancelRequestAnimationFrame ||
            window.msCancelRequestAnimationFrame ||
            window.mozCancelRequestAnimationFrame ||
            window.oCancelRequestAnimationFrame ||
            window.webkitCancelRequestAnimationFrame ||
            window.msCancelAnimationFrame ||
            window.mozCancelAnimationFrame ||
            window.webkitCancelAnimationFrame ||
            window.oCancelAnimationFrame ||
            this._ctTime;
        }
    },
    _stTime: function (callback) {
        var currTime = new Date().getTime();
        var timeToCall = Math.max(0, cc.game._frameTime - (currTime - cc.game._lastTime));
        var id = window.setTimeout(function() { callback(); },
            timeToCall);
        cc.game._lastTime = currTime + timeToCall;
        return id;
    },
    _ctTime: function (id) {
        window.clearTimeout(id);
    },
    //Run game.
    _runMainLoop: function () {
        var self = this, callback, config = self.config, CONFIG_KEY = self.CONFIG_KEY,
            director = cc.director,
            skip = true, frameRate = config[CONFIG_KEY.frameRate];

        director.setDisplayStats(config[CONFIG_KEY.showFPS]);

        callback = function () {
            if (!self._paused) {
                if (frameRate === 30) {
                    if (skip = !skip) {
                        self._intervalId = window.requestAnimFrame(callback);
                        return;
                    }
                }

                director.mainLoop();
                self._intervalId = window.requestAnimFrame(callback);
            }
        };

        self._intervalId = window.requestAnimFrame(callback);
        self._paused = false;
    },

//  @Game loading section
    _loadConfig: function (cb) {
        // Load config
        var config = this.config || document["ccConfig"];
        // Already loaded or Load from document.ccConfig
        if (config) {
            this._initConfig(config);
            cb && cb();
        }
        // Load from project.json
        else {
            var cocos_script = document.getElementsByTagName('script');
            for (var i = 0; i < cocos_script.length; i++) {
                var _t = cocos_script[i].getAttribute('cocos');
                if (_t === '' || _t) {
                    break;
                }
            }
            var self = this;
            var loaded = function (err, txt) {
                var data = JSON.parse(txt);
                self._initConfig(data);
                cb && cb();
            };
            var _src, txt, _resPath;
            if (i < cocos_script.length) {
                _src = cocos_script[i].src;
                if (_src) {
                    _resPath = /(.*)\//.exec(_src)[0];
                    cc.loader.resPath = _resPath;
                    _src = cc.path.join(_resPath, 'project.json');
                }
                cc.loader.loadTxt(_src, loaded);
            }
            if (!txt) {
                cc.loader.loadTxt("project.json", loaded);
            }
        }
    },

    _initConfig: function (config) {
        var CONFIG_KEY = this.CONFIG_KEY,
            modules = config[CONFIG_KEY.modules];

        // Configs adjustment
        config[CONFIG_KEY.showFPS] = typeof config[CONFIG_KEY.showFPS] === 'undefined' ? true : config[CONFIG_KEY.showFPS];
        config[CONFIG_KEY.engineDir] = config[CONFIG_KEY.engineDir] || "frameworks/cocos2d-html5";
        if (config[CONFIG_KEY.debugMode] == null)
            config[CONFIG_KEY.debugMode] = 0;
        config[CONFIG_KEY.exposeClassName] = !!config[CONFIG_KEY.exposeClassName];
        config[CONFIG_KEY.frameRate] = config[CONFIG_KEY.frameRate] || 60;
        if (config[CONFIG_KEY.renderMode] == null)
            config[CONFIG_KEY.renderMode] = 0;
        if (config[CONFIG_KEY.registerSystemEvent] == null)
            config[CONFIG_KEY.registerSystemEvent] = true;

        // Modules adjustment
        if (modules && modules.indexOf("core") < 0) modules.splice(0, 0, "core");
        modules && (config[CONFIG_KEY.modules] = modules);
        this.config = config;
        this._configLoaded = true;
    },

    _initRenderer: function (width, height) {
        // Avoid setup to be called twice.
        if (this._rendererInitialized) return;

        if (!cc._supportRender) {
            throw new Error("The renderer doesn't support the renderMode " + this.config[this.CONFIG_KEY.renderMode]);
        }

        var el = this.config[cc.game.CONFIG_KEY.id],
            win = window,
            element = cc.$(el) || cc.$('#' + el),
            localCanvas, localContainer, localConStyle;

        if (element.tagName === "CANVAS") {
            width = width || element.width;
            height = height || element.height;

            //it is already a canvas, we wrap it around with a div
            this.canvas = cc._canvas = localCanvas = element;
            this.container = cc.container = localContainer = document.createElement("DIV");
            if (localCanvas.parentNode)
                localCanvas.parentNode.insertBefore(localContainer, localCanvas);
        } else {
            //we must make a new canvas and place into this element
            if (element.tagName !== "DIV") {
                cc.log("Warning: target element is not a DIV or CANVAS");
            }
            width = width || element.clientWidth;
            height = height || element.clientHeight;
            this.canvas = cc._canvas = localCanvas = cc.$(document.createElement("CANVAS"));
            this.container = cc.container = localContainer = document.createElement("DIV");
            element.appendChild(localContainer);
        }
        localContainer.setAttribute('id', 'Cocos2dGameContainer');
        localContainer.appendChild(localCanvas);
        this.frame = (localContainer.parentNode === document.body) ? document.documentElement : localContainer.parentNode;

        localCanvas.addClass("gameCanvas");
        localCanvas.setAttribute("width", width || 480);
        localCanvas.setAttribute("height", height || 320);
        localCanvas.setAttribute("tabindex", 99);

        if (cc._renderType === cc.game.RENDER_TYPE_WEBGL) {
            this._renderContext = cc._renderContext = cc.webglContext
             = cc.create3DContext(localCanvas, {
                'stencil': true,
                'alpha': false
            });
        }
        // WebGL context created successfully
        if (this._renderContext) {
            cc.renderer = cc.rendererWebGL;
            win.gl = this._renderContext; // global variable declared in CCMacro.js
            cc.renderer.init();
            cc._drawingUtil = new cc.DrawingPrimitiveWebGL(this._renderContext);
            cc.textureCache._initializingRenderer();
            cc.glExt = {};
            cc.glExt.instanced_arrays = win.gl.getExtension("ANGLE_instanced_arrays");
            cc.glExt.element_uint = win.gl.getExtension("OES_element_index_uint");
        } else {
            cc._renderType = cc.game.RENDER_TYPE_CANVAS;
            cc.renderer = cc.rendererCanvas;
            this._renderContext = cc._renderContext = new cc.CanvasContextWrapper(localCanvas.getContext("2d"));
            cc._drawingUtil = cc.DrawingPrimitiveCanvas ? new cc.DrawingPrimitiveCanvas(this._renderContext) : null;
        }

        cc._gameDiv = localContainer;
        cc.game.canvas.oncontextmenu = function () {
            if (!cc._isContextMenuEnable) return false;
        };

        this.dispatchEvent(this.EVENT_RENDERER_INITED, true);

        this._rendererInitialized = true;
    },

    _initEvents: function () {
        var win = window, hidden;

        this._eventHide = this._eventHide || new cc.EventCustom(this.EVENT_HIDE);
        this._eventHide.setUserData(this);
        this._eventShow = this._eventShow || new cc.EventCustom(this.EVENT_SHOW);
        this._eventShow.setUserData(this);

        // register system events
        if (this.config[this.CONFIG_KEY.registerSystemEvent])
            cc.inputManager.registerSystemEvent(this.canvas);

        if (!cc.isUndefined(document.hidden)) {
            hidden = "hidden";
        } else if (!cc.isUndefined(document.mozHidden)) {
            hidden = "mozHidden";
        } else if (!cc.isUndefined(document.msHidden)) {
            hidden = "msHidden";
        } else if (!cc.isUndefined(document.webkitHidden)) {
            hidden = "webkitHidden";
        }

        var changeList = [
            "visibilitychange",
            "mozvisibilitychange",
            "msvisibilitychange",
            "webkitvisibilitychange",
            "qbrowserVisibilityChange"
        ];
        var onHidden = function () {
            if (cc.eventManager && cc.game._eventHide)
                cc.eventManager.dispatchEvent(cc.game._eventHide);
        };
        var onShow = function () {
            if (cc.eventManager && cc.game._eventShow)
                cc.eventManager.dispatchEvent(cc.game._eventShow);
        };

        if (hidden) {
            for (var i=0; i<changeList.length; i++) {
                document.addEventListener(changeList[i], function (event) {
                    var visible = document[hidden];
                    // QQ App
                    visible = visible || event["hidden"];
                    if (visible) onHidden();
                    else onShow();
                }, false);
            }
        } else {
            win.addEventListener("blur", onHidden, false);
            win.addEventListener("focus", onShow, false);
        }

        if (navigator.userAgent.indexOf("MicroMessenger") > -1) {
            win.onfocus = function(){ onShow() };
        }

        if ("onpageshow" in window && "onpagehide" in window) {
            win.addEventListener("pagehide", onHidden, false);
            win.addEventListener("pageshow", onShow, false);
        }

        cc.eventManager.addCustomListener(cc.game.EVENT_HIDE, function () {
            cc.game.pause();
        });
        cc.eventManager.addCustomListener(cc.game.EVENT_SHOW, function () {
            cc.game.resume();
        });
    }
};
//+++++++++++++++++++++++++something about CCGame end+++++++++++++++++++++++++++++

Function.prototype.bind = Function.prototype.bind || function (oThis) {
    if (!cc.isFunction(this)) {
        // closest thing possible to the ECMAScript 5
        // internal IsCallable function
        throw new TypeError("Function.prototype.bind - what is trying to be bound is not callable");
    }

    var aArgs = Array.prototype.slice.call(arguments, 1),
        fToBind = this,
        fNOP = function () {},
        fBound = function () {
            return fToBind.apply(this instanceof fNOP && oThis
                ? this
                : oThis,
                aArgs.concat(Array.prototype.slice.call(arguments)));
        };

    fNOP.prototype = this.prototype;
    fBound.prototype = new fNOP();

    return fBound;
};