CCScheduler.js

/****************************************************************************
 Copyright (c) 2010-2012 cocos2d-x.org
 Copyright (c) 2008-2010 Ricardo Quesada
 Copyright (c) 2011      Zynga Inc.

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/**
 * Priority level reserved for system services.
 * @constant
 * @type Number
 */
cc.PRIORITY_SYSTEM = (-2147483647 - 1);

/**
 * Minimum priority level for user scheduling.
 * @constant
 * @type Number
 */
cc.PRIORITY_NON_SYSTEM = cc.PRIORITY_SYSTEM + 1;

/**
 * Verify Array's Type
 * @param {Array} arr
 * @param {function} type
 * @return {Boolean}
 * @function
 */
cc.ArrayVerifyType = function (arr, type) {
    if (arr && arr.length > 0) {
        for (var i = 0; i < arr.length; i++) {
            if (!(arr[i] instanceof  type)) {
                cc.log("element type is wrong!");
                return false;
            }
        }
    }
    return true;
};

/**
 * Removes object at specified index and pushes back all subsequent objects.Behaviour undefined if index outside [0, num-1].
 * @function
 * @param {Array} arr Source Array
 * @param {Number} index index of remove object
 */
cc.ArrayRemoveObjectAtIndex = function (arr, index) {
    arr.splice(index, 1);
};

/**
 * Searches for the first occurance of object and removes it. If object is not found the function has no effect.
 * @function
 * @param {Array} arr Source Array
 * @param {*} delObj  remove object
 */
cc.ArrayRemoveObject = function (arr, delObj) {
    for (var i = 0; i < arr.length; i++) {
        if (arr[i] == delObj) {
            arr.splice(i, 1);
        }
    }
};

/**
 * Removes from arr all values in minusArr. For each Value in minusArr, the first matching instance in arr will be removed.
 * @function
 * @param {Array} arr Source Array
 * @param {Array} minusArr minus Array
 */
cc.ArrayRemoveArray = function (arr, minusArr) {
    for (var i = 0; i < minusArr.length; i++) {
        cc.ArrayRemoveObject(arr, minusArr[i]);
    }
};

/**
 * Returns index of first occurence of value, -1 if value not found.
 * @function
 * @param {Array} arr Source Array
 * @param {*} value find value
 * @return {Number} index of first occurence of value
 */
cc.ArrayGetIndexOfValue = function (arr, value) {
    for (var i = 0; i < arr.length; i++) {
        if (arr[i] == value) {
            return i;
        }
    }
    return -1;
};

/**
 * append an object to array
 * @function
 * @param {Array} arr
 * @param {*} addObj
 */
cc.ArrayAppendObject = function (arr, addObj) {
    arr.push(addObj);
};

/**
 * Inserts an object at index
 * @function
 * @param {Array} arr
 * @param {*} addObj
 * @param {Number} index
 * @return {Array}
 */
cc.ArrayAppendObjectToIndex = function (arr, addObj, index) {
    var part1 = arr.slice(0, index);
    var part2 = arr.slice(index);
    part1.push(addObj);
    arr = (part1.concat(part2));
    return arr;
};

/**
 * Returns index of first occurence of object, -1 if value not found.
 * @function
 * @param {Array} arr Source Array
 * @param {*} findObj find object
 * @return {Number} index of first occurence of value
 */
cc.ArrayGetIndexOfObject = function (arr, findObj) {
    for (var i = 0; i < arr.length; i++) {
        if (arr[i] == findObj)
            return i;
    }
    return -1;
};

/**
 * Returns a Boolean value that indicates whether value is present in the array.
 * @function
 * @param {Array} arr
 * @param {*} findObj
 * @return {Boolean}
 */
cc.ArrayContainsObject = function (arr, findObj) {
    return cc.ArrayGetIndexOfObject(arr, findObj) != -1;
};

/**
 * find object from array by target
 * @param {Array} arr source array
 * @param {cc.ListEntry|cc.HashUpdateEntry|cc.HashSelectorEntry} findInt find target
 * @return {cc.ListEntry|cc.HashUpdateEntry|cc.HashSelectorEntry}
 */
cc.HASH_FIND_INT = function (arr, findInt) {
    if (arr == null) {
        return null;
    }
    for (var i = 0; i < arr.length; i++) {
        if (arr[i].target == findInt) {
            return arr[i];
        }
    }
    return null;
};

//data structures
/**
 * A list double-linked list used for "updates with priority"
 * @Class
 * @Construct
 * @param {cc.ListEntry} prev
 * @param {cc.ListEntry} next
 * @param {cc.Class} target not retained (retained by hashUpdateEntry)
 * @param {Number} priority
 * @param {Boolean} paused
 * @param {Boolean} markedForDeletion selector will no longer be called and entry will be removed at end of the next tick
 */
cc.ListEntry = function (prev, next, target, priority, paused, markedForDeletion) {
    this.prev = prev;
    this.next = next;
    this.target = target;
    this.priority = priority;
    this.paused = paused;
    this.markedForDeletion = markedForDeletion;
};

/**
 *  a update entry list
 * @Class
 * @Construct
 * @param {cc.ListEntry} list Which list does it belong to ?
 * @param {cc.ListEntry} entry entry in the list
 * @param {cc.Class} target hash key (retained)
 * @param {Array} hh
 */
cc.HashUpdateEntry = function (list, entry, target, hh) {
    this.list = list;
    this.entry = entry;
    this.target = target;
    this.hh = hh;
};

//
/**
 * Hash Element used for "selectors with interval"
 * @Class
 * @Construct
 * @param {Array} timers
 * @param {cc.Class} target  hash key (retained)
 * @param {Number} timerIndex
 * @param {cc.Timer} currentTimer
 * @param {Boolean} currentTimerSalvaged
 * @param {Boolean} paused
 * @param {Array} hh
 */
cc.HashSelectorEntry = function (timers, target, timerIndex, currentTimer, currentTimerSalvaged, paused, hh) {
    this.timers = timers;
    this.target = target;
    this.timerIndex = timerIndex;
    this.currentTimer = currentTimer;
    this.currentTimerSalvaged = currentTimerSalvaged;
    this.paused = paused;
    this.hh = hh;
};

/**
 * Light weight timer
 * @class
 * @extends cc.Class
 */
cc.Timer = cc.Class.extend(/** @lends cc.Timer# */{
    _interval:0.0,
    _selector:"",

    _target:null,
    _elapsed:0.0,

    _runForever:false,
    _useDelay:false,
    _timesExecuted:0,
    _repeat:0, //0 = once, 1 is 2 x executed
    _delay:0,

    /**
     * cc.Timer's Constructor
     * Constructor
     */
    ctor:function () {
    },

    /**
     * returns interval of timer
     * @return {Number}
     */
    getInterval:function () {
        return this._interval;
    },

    /**
     * Initializes a timer with a target, a selector and an interval in seconds.
     * @param {cc.Class} target target
     * @param {String|function} selector Selector
     * @param {Number} seconds second
     * @return {Boolean} <tt>true</tt> if inintialized
     * * */
    initWithTarget:function (target, selector, seconds, repeat, delay) {
        try {
            this._target = target;
            this._selector = selector;
            this._elapsed = -1;
            this._interval = seconds || 0;
            this._delay = delay || 0;
            this._useDelay = this._delay > 0;
            this._repeat = (repeat == null) ? cc.REPEAT_FOREVER : repeat;
            this._runForever = (this._repeat == cc.REPEAT_FOREVER);
            return true;
        } catch (e) {
            return false;
        }
    },

    /**
     * triggers the timer
     * @param {Number} dt delta time
     */
    update:function (dt) {
        if (this._elapsed == -1) {
            this._elapsed = 0;
            this._timesExecuted = 0;
        } else {
            if (this._runForever && !this._useDelay) {
                //standard timer usage
                this._elapsed += dt;

                if (this._elapsed >= this._interval) {
                    if (this._selector) {
                        if (typeof(this._selector) == "string") {
                            this._target[this._selector](this._elapsed);
                        } else{ // if (typeof(this._selector) == "function") {
                            this._selector.call(this._target, this._elapsed);
                        }
                    }
                    this._elapsed = 0;
                }
            } else {
                //advanced usage
                this._elapsed += dt;
                if (this._useDelay) {
                    if (this._elapsed >= this._delay) {
                        if (this._target && this._selector) {
                            if (typeof(this._selector) == "string") {
                                this._target[this._selector](this._elapsed);
                            } else{ // if (typeof(this._selector) == "function") {
                                this._selector.call(this._target, this._elapsed);
                            }
                        }
                        this._elapsed = this._elapsed - this._delay;
                        this._timesExecuted += 1;
                        this._useDelay = false;
                    }
                } else {
                    if (this._elapsed >= this._interval) {
                        if (this._target && this._selector) {
                            if (typeof(this._selector) == "string") {
                                this._target[this._selector](this._elapsed);
                            } else{  //if (typeof(this._selector) == "function") {
                                this._selector.call(this._target, this._elapsed);
                            }
                        }
                        this._elapsed = 0;
                        this._timesExecuted += 1;
                    }
                }

                if (this._timesExecuted > this._repeat) {
                    cc.Director.getInstance().getScheduler().unscheduleSelector(this._selector, this._target);
                }
            }
        }
    }
});

/**
 * Allocates a timer with a target, a selector and an interval in seconds.
 * @function
 * @param {cc.Class} target
 * @param {String|function} selector Selector
 * @param {Number} seconds
 * @return {cc.Timer} a cc.Timer instance
 * */
cc.Timer.timerWithTarget = function (target, selector, seconds) {
    if (arguments < 2)
        throw new Error("timerWithTarget'argument can't is null");

    var timer = new cc.Timer();
    if (arguments.length == 2) {
        timer.initWithTarget(target, selector, 0, cc.REPEAT_FOREVER, 0);
    } else {
        timer.initWithTarget(target, selector, seconds, cc.REPEAT_FOREVER, 0);
    }
    return timer;
};

cc._sharedScheduler = null;
/**
 * <p>
 *    Scheduler is responsible of triggering the scheduled callbacks.<br/>
 *    You should not use NSTimer. Instead use this class.<br/>
 *    <br/>
 *    There are 2 different types of callbacks (selectors):<br/>
 *       - update selector: the 'update' selector will be called every frame. You can customize the priority.<br/>
 *       - custom selector: A custom selector will be called every frame, or with a custom interval of time<br/>
 *       <br/>
 *    The 'custom selectors' should be avoided when possible. It is faster, and consumes less memory to use the 'update selector'. *
 * </p>
 * @class
 * @extends cc.Class
 *
 * @example
 * //register a schedule to scheduler
 * cc.Director.getInstance().getScheduler().scheduleSelector(selector, this, interval, !this._isRunning);
 */
cc.Scheduler = cc.Class.extend(/** @lends cc.Scheduler# */{
    _timeScale:1.0,
    _updatesNegList:null, // list of priority < 0
    _updates0List:null, // list priority == 0
    _updatesPosList:null, // list priority > 0
    _hashForUpdates:null, // hash used to fetch quickly the list entries for pause,delete,etc

    _hashForSelectors:null, //Used for "selectors with interval"

    _currentTarget:null,
    _currentTargetSalvaged:false,
    _updateHashLocked:false, //If true unschedule will not remove anything from a hash. Elements will only be marked for deletion.

    /**
     * Constructor
     */
    ctor:function () {
        this._timeScale = 1.0;

        this._updatesNegList = [];
        this._updates0List = [];
        this._updatesPosList = [];

        this._hashForUpdates = [];
        this._hashForSelectors = [];

        this._currentTarget = null;
        this._currentTargetSalvaged = false;
        this._updateHashLocked = false;
    },

    //-----------------------private method----------------------
    _removeHashElement:function (element) {
        element.Timer = null;
        element.target = null;
        cc.ArrayRemoveObject(this._hashForSelectors, element);
        element = null;
    },

    /**
     * find Object from Array
     * @private
     * @param {Array} Source Array
     * @param {cc.Class} destination object
     * @return {cc.ListEntry} object if finded, or return null
     */
    _findElementFromArray:function (array, target) {
        for (var i = 0; i < array.length; i++) {
            if (array[i].target == target) {
                return array[i];
            }
        }
        return null;
    },

    _removeUpdateFromHash:function (entry) {
        var element = this._findElementFromArray(this._hashForUpdates, entry.target);
        if (element) {
            //list entry
            cc.ArrayRemoveObject(element.list, element.entry);
            element.entry = null;

            //hash entry
            element.target = null;
            cc.ArrayRemoveObject(this._hashForUpdates, element);
        }
    },

    _priorityIn:function (ppList, target, priority, paused) {
        var listElement = new cc.ListEntry(null, null, target, priority, paused, false);

        // empey list ?
        if (!ppList) {
            ppList = [];
            ppList.push(listElement);
        } else {
            var added = false;
            for (var i = 0; i < ppList.length; i++) {
                if (priority < ppList[i].priority) {
                    ppList = cc.ArrayAppendObjectToIndex(ppList, listElement, i);
                    added = true;
                    break;
                }
            }

            // Not added? priority has the higher value. Append it.
            if (!added) {
                ppList.push(listElement);
            }
        }

        //update hash entry for quick access
        var hashElement = new cc.HashUpdateEntry(ppList, listElement, target, null);
        this._hashForUpdates.push(hashElement);

        return ppList;
    },

    _appendIn:function (ppList, target, paused) {
        var listElement = new cc.ListEntry(null, null, target, 0, paused, false);
        ppList.push(listElement);

        //update hash entry for quicker access
        var hashElement = new cc.HashUpdateEntry(ppList, listElement, target, null);
        this._hashForUpdates.push(hashElement);
    },

    //-----------------------public method-------------------------
    /**
     * <p>
     *    Modifies the time of all scheduled callbacks.<br/>
     *    You can use this property to create a 'slow motion' or 'fast forward' effect.<br/>
     *    Default is 1.0. To create a 'slow motion' effect, use values below 1.0.<br/>
     *    To create a 'fast forward' effect, use values higher than 1.0.<br/>
     *    @warning It will affect EVERY scheduled selector / action.
     * </p>
     * @param {Number} timeScale
     */
    setTimeScale:function (timeScale) {
        this._timeScale = timeScale;
    },

    /**
     * returns time scale of scheduler
     * @return {Number}
     */
    getTimeScale:function () {
        return this._timeScale;
    },

    /**
     * 'update' the scheduler. (You should NEVER call this method, unless you know what you are doing.)
     * @param {Number} dt delta time
     */
    update:function (dt) {
        this._updateHashLocked = true;

        if (this._timeScale != 1.0) {
            dt *= this._timeScale;
        }

        //Iterate all over the Updates selectors
        var tmpEntry;
        var i;
        for (i = 0; i < this._updatesNegList.length; i++) {
            tmpEntry = this._updatesNegList[i];
            if ((!tmpEntry.paused) && (!tmpEntry.markedForDeletion)) {
                tmpEntry.target.update(dt);
            }
        }

        // updates with priority == 0
        for (i = 0; i < this._updates0List.length; i++) {
            tmpEntry = this._updates0List[i];
            if ((!tmpEntry.paused) && (!tmpEntry.markedForDeletion)) {
                tmpEntry.target.update(dt);
            }
        }

        // updates with priority > 0
        for (i = 0; i < this._updatesPosList.length; i++) {
            tmpEntry = this._updatesPosList[i];
            if ((!tmpEntry.paused) && (!tmpEntry.markedForDeletion)) {
                tmpEntry.target.update(dt);
            }
        }

        //Interate all over the custom selectors
        var elt;
        for (i = 0; i < this._hashForSelectors.length; i++) {
            this._currentTarget = this._hashForSelectors[i];
            elt = this._currentTarget;
            this._currentTargetSalvaged = false;

            if (!this._currentTarget.paused) {
                // The 'timers' array may change while inside this loop
                for (elt.timerIndex = 0; elt.timerIndex < elt.timers.length; elt.timerIndex++) {
                    elt.currentTimer = elt.timers[elt.timerIndex];
                    elt.currentTimerSalvaged = false;

                    elt.currentTimer.update(dt);
                    elt.currentTimer = null;
                }
            }

            if ((this._currentTargetSalvaged) && (this._currentTarget.timers.length == 0)) {
                this._removeHashElement(this._currentTarget);
            }
        }

        //delete all updates that are marked for deletion
        // updates with priority < 0
        for (i = 0; i < this._updatesNegList.length; i++) {
            if (this._updatesNegList[i].markedForDeletion) {
                this._removeUpdateFromHash(this._updatesNegList[i]);
            }
        }

        // updates with priority == 0
        for (i = 0; i < this._updates0List.length; i++) {
            if (this._updates0List[i].markedForDeletion) {
                this._removeUpdateFromHash(this._updates0List[i]);
            }
        }

        // updates with priority > 0
        for (i = 0; i < this._updatesPosList.length; i++) {
            if (this._updatesPosList[i].markedForDeletion) {
                this._removeUpdateFromHash(this._updatesPosList[i]);
            }
        }

        this._updateHashLocked = false;
        this._currentTarget = null;
    },

    /**
     * <p>
     *   The scheduled method will be called every 'interval' seconds.</br>
     *   If paused is YES, then it won't be called until it is resumed.<br/>
     *   If 'interval' is 0, it will be called every frame, but if so, it recommened to use 'scheduleUpdateForTarget:' instead.<br/>
     *   If the selector is already scheduled, then only the interval parameter will be updated without re-scheduling it again.<br/>
     *   repeat let the action be repeated repeat + 1 times, use kCCRepeatForever to let the action run continiously<br/>
     *   delay is the amount of time the action will wait before it'll start<br/>
     * </p>
     * @param {function} selector
     * @param {cc.Class} target
     * @param {Number} interval
     * @param {Boolean} paused
     * @example
     * //register a schedule to scheduler
     * cc.Director.getInstance().getScheduler().scheduleCallback(function, this, interval, !this._isRunning);
     */
    scheduleCallback:function (selector, target, interval, paused, repeat, delay) {
        cc.Assert(selector, "scheduler.scheduleCallback() Argument selector must be non-NULL");
        cc.Assert(target, "scheduler.scheduleCallback() Argument target must be non-NULL");

        repeat = (repeat == null) ? cc.REPEAT_FOREVER : repeat;
        delay = delay || 0;

        var element = cc.HASH_FIND_INT(this._hashForSelectors, target);

        if (!element) {
            // Is this the 1st element ? Then set the pause level to all the selectors of this target
            element = new cc.HashSelectorEntry(null, target, 0, null, null, paused, null);
            this._hashForSelectors.push(element);
        } else {
            cc.Assert(element.paused == paused, "Sheduler.scheduleSelector()");
        }

        var timer;
        if (element.timers == null) {
            element.timers = [];
        } else {
            for (var i = 0; i < element.timers.length; i++) {
                timer = element.timers[i];
                if (selector == timer._selector) {
                    cc.log("CCSheduler#scheduleCallback. Callback already scheduled. Updating interval from:"
                        + timer.getInterval().toFixed(4) + " to " + interval.toFixed(4));
                    timer._interval = interval;
                    return;
                }
            }
        }

        timer = new cc.Timer();
        timer.initWithTarget(target, selector, interval, repeat, delay);
        element.timers.push(timer);
    },

    /**
     * <p>
     *    Schedules the 'update' selector for a given target with a given priority.<br/>
     *    The 'update' selector will be called every frame.<br/>
     *    The lower the priority, the earlier it is called.
     * </p>
     * @param {cc.Class} target
     * @param {Number} priority
     * @param {Boolean} paused
     * @example
     * //register this object to scheduler
     * cc.Director.getInstance().getScheduler().scheduleUpdateForTarget(this, priority, !this._isRunning);
     */
    scheduleUpdateForTarget:function (target, priority, paused) {
        var hashElement = cc.HASH_FIND_INT(this._hashForUpdates, target);

        if (hashElement) {
            if (cc.COCOS2D_DEBUG >= 1) {
                cc.Assert(hashElement.entry.markedForDeletion, "");
            }
            // TODO: check if priority has changed!
            hashElement.entry.markedForDeletion = false;
            return;
        }

        // most of the updates are going to be 0, that's way there
        // is an special list for updates with priority 0
        if (priority == 0) {
            this._appendIn(this._updates0List, target, paused);
        } else if (priority < 0) {
            this._updatesNegList = this._priorityIn(this._updatesNegList, target, priority, paused);
        } else {
            // priority > 0
            this._updatesPosList = this._priorityIn(this._updatesPosList, target, priority, paused);
        }
    },

    /**
     * <p>
     *   Unschedule a callback function for a given target.<br/>
     *   If you want to unschedule the "update", use unscheudleUpdateForTarget.
     * </p>
     * @param {function} selector
     * @param {cc.Class} target
     * @example
     * //unschedule a selector of target
     * cc.Director.getInstance().getScheduler().unscheduleCallback(function, this);
     */
    unscheduleCallback:function (selector, target) {
        // explicity handle nil arguments when removing an object
        if ((target == null) || (selector == null)) {
            return;
        }

        var element = cc.HASH_FIND_INT(this._hashForSelectors, target);
        if (element != null) {
            for (var i = 0; i < element.timers.length; i++) {
                var timer = element.timers[i];
                if (selector == timer._selector) {
                    if ((timer == element.currentTimer) && (!element.currentTimerSalvaged)) {
                        element.currentTimerSalvaged = true;
                    }
                    cc.ArrayRemoveObjectAtIndex(element.timers, i);
                    //update timerIndex in case we are in tick;, looping over the actions
                    if (element.timerIndex >= i) {
                        element.timerIndex--;
                    }

                    if (element.timers.length == 0) {
                        if (this._currentTarget == element) {
                            this._currentTargetSalvaged = true;
                        } else {

                            this._removeHashElement(element);
                        }
                    }
                    return;
                }
            }
        }
    },

    /**
     * Unschedules the update selector for a given target
     * @param {cc.Class} target
     * @example
     * //unschedules the "update" method.
     * cc.Director.getInstance().getScheduler().unscheduleUpdateForTarget(this);
     */
    unscheduleUpdateForTarget:function (target) {
        if (target == null) {
            return;
        }

        var element = cc.HASH_FIND_INT(this._hashForUpdates, target);
        if (element != null) {
            if (this._updateHashLocked) {
                element.entry.markedForDeletion = true;
            } else {
                this._removeUpdateFromHash(element.entry);
            }
        }
    },

    /**
     * Unschedules all function callbacks for a given target. This also includes the "update" callback function.
     * @param {cc.Class} target
     */
    unscheduleAllCallbacksForTarget:function (target) {
        //explicit NULL handling
        if (target == null) {
            return;
        }

        var element = cc.HASH_FIND_INT(this._hashForSelectors, target);
        if (element) {
            if ((!element.currentTimerSalvaged) && (cc.ArrayContainsObject(element.timers, element.currentTimer))) {
                element.currentTimerSalvaged = true;
            }
            element.timers.length = 0;

            if (this._currentTarget == element) {
                this._currentTargetSalvaged = true;
            } else {
                this._removeHashElement(element);
            }
        }
        // update selector
        this.unscheduleUpdateForTarget(target);
    },

    /**
     *  <p>
     *      Unschedules all function callbacks from all targets. <br/>
     *      You should NEVER call this method, unless you know what you are doing.
     *  </p>
     */
    unscheduleAllCallbacks:function () {
        this.unscheduleAllCallbacksWithMinPriority(cc.PRIORITY_SYSTEM);
    },

    /**
     * <p>
     *    Unschedules all function callbacks from all targets with a minimum priority.<br/>
     *    You should only call this with kCCPriorityNonSystemMin or higher.
     * </p>
     * @param {Number} minPriority
     */
    unscheduleAllCallbacksWithMinPriority:function (minPriority) {
        // Custom Selectors
        var i;
        for (i = 0; i < this._hashForSelectors.length; i++) {
            // element may be removed in unscheduleAllCallbacksForTarget
            this.unscheduleAllCallbacksForTarget(this._hashForSelectors[i].target);
        }

        //updates selectors
        if (minPriority < 0) {
            for (i = 0; i < this._updatesNegList.length; i++) {
                this.unscheduleUpdateForTarget(this._updatesNegList[i].target);
            }
        }

        if (minPriority <= 0) {
            for (i = 0; i < this._updates0List.length; i++) {
                this.unscheduleUpdateForTarget(this._updates0List[i].target);
            }
        }

        for (i = 0; i < this._updatesPosList.length; i++) {
            if (this._updatesPosList[i].priority >= minPriority) {
                this.unscheduleUpdateForTarget(this._updatesPosList[i].target);
            }
        }
    },

    /**
     * <p>
     *  Pause all selectors from all targets.<br/>
     *  You should NEVER call this method, unless you know what you are doing.
     * </p>
     */
    pauseAllTargets:function () {
        return this.pauseAllTargetsWithMinPriority(cc.PRIORITY_SYSTEM);
    },

    /**
     * Pause all selectors from all targets with a minimum priority. <br/>
     * You should only call this with kCCPriorityNonSystemMin or higher.
     * @param minPriority
     */
    pauseAllTargetsWithMinPriority:function (minPriority) {
        var idsWithSelectors = [];

        var i, element;
        // Custom Selectors
        for (i = 0; i < this._hashForSelectors.length; i++) {
            element = this._hashForSelectors[i];
            if (element) {
                element.paused = true;
                idsWithSelectors.push(element.target);
            }
        }

        // Updates selectors
        if (minPriority < 0) {
            for (i = 0; i < this._updatesNegList.length; i++) {
                element = this._updatesNegList[i];
                if (element) {
                    element.paused = true;
                    idsWithSelectors.push(element.target);
                }
            }
        }

        if (minPriority <= 0) {
            for (i = 0; i < this._updates0List.length; i++) {
                element = this._updates0List[i];
                if (element) {
                    element.paused = true;
                    idsWithSelectors.push(element.target);
                }
            }
        }

        for (i = 0; i < this._updatesPosList.length; i++) {
            element = this._updatesPosList[i];
            if (element) {
                element.paused = true;
                idsWithSelectors.push(element.target);
            }
        }

        return idsWithSelectors;
    },

    /**
     * Resume selectors on a set of targets.<br/>
     * This can be useful for undoing a call to pauseAllCallbacks.
     * @param targetsToResume
     */
    resumeTargets:function (targetsToResume) {
        if (!targetsToResume)
            return;

        for (var i = 0; i < targetsToResume.length; i++) {
            this.resumeTarget(targetsToResume[i]);
        }
    },

    /**
     * <p>
     *    Pauses the target.<br/>
     *    All scheduled selectors/update for a given target won't be 'ticked' until the target is resumed.<br/>
     *    If the target is not present, nothing happens.
     * </p>
     * @param {cc.Class} target
     */
    pauseTarget:function (target) {
        cc.Assert(target != null, "Scheduler.pauseTarget():entry must be non nil");

        //customer selectors
        var element = cc.HASH_FIND_INT(this._hashForSelectors, target);
        if (element) {
            element.paused = true;
        }

        //update selector
        var elementUpdate = cc.HASH_FIND_INT(this._hashForUpdates, target);
        if (elementUpdate) {
            cc.Assert(elementUpdate.entry != null, "Scheduler.pauseTarget():entry must be non nil");
            elementUpdate.entry.paused = true;
        }
    },

    /**
     * Resumes the target.<br/>
     * The 'target' will be unpaused, so all schedule selectors/update will be 'ticked' again.<br/>
     * If the target is not present, nothing happens.
     * @param {cc.Class} target
     */
    resumeTarget:function (target) {
        cc.Assert(target != null, "");

        // custom selectors
        var element = cc.HASH_FIND_INT(this._hashForSelectors, target);

        if (element) {
            element.paused = false;
        }

        //update selector
        var elementUpdate = cc.HASH_FIND_INT(this._hashForUpdates, target);

        if (elementUpdate) {
            cc.Assert(elementUpdate.entry != null, "Scheduler.resumeTarget():entry must be non nil");
            elementUpdate.entry.paused = false;
        }
    },

    /**
     * Returns whether or not the target is paused
     * @param {cc.Class} target
     * @return {Boolean}
     */
    isTargetPaused:function (target) {
        cc.Assert(target != null, "Scheduler.isTargetPaused():target must be non nil");

        // Custom selectors
        var element = cc.HASH_FIND_INT(this._hashForSelectors, target);
        if (element) {
            return element.paused;
        }
        return false;
    }
});