tv_xiaoyouxi/games/symdsb/frameworks/cocos2d-html5/CCAnimationCache.js

/****************************************************************************
 Copyright (c) 2008-2010 Ricardo Quesada
 Copyright (c) 2011-2012 cocos2d-x.org
 Copyright (c) 2013-2014 Chukong Technologies Inc.

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/**
 * <p>
 *     cc.animationCache is a singleton object that manages the Animations.<br/>
 *     It saves in a cache the animations. You should use this class if you want to save your animations in a cache.<br/>
 * <br/>
 * example<br/>
 * cc.animationCache.addAnimation(animation,"animation1");<br/>
 * </p>
 * @class
 * @name cc.animationCache
 */
cc.animationCache = /** @lends cc.animationCache# */{
	_animations: {},

    /**
     * Adds a cc.Animation with a name.
     * @param {cc.Animation} animation
     * @param {String} name
     */
    addAnimation:function (animation, name) {
        this._animations[name] = animation;
    },

    /**
     * Deletes a cc.Animation from the cache.
     * @param {String} name
     */
    removeAnimation:function (name) {
        if (!name) {
            return;
        }
        if (this._animations[name]) {
            delete this._animations[name];
        }
    },

    /**
     * <p>
     *     Returns a cc.Animation that was previously added.<br/>
     *      If the name is not found it will return nil.<br/>
     *      You should retain the returned copy if you are going to use it.</br>
     * </p>
     * @param {String} name
     * @return {cc.Animation}
     */
    getAnimation:function (name) {
        if (this._animations[name])
            return this._animations[name];
        return null;
    },

    _addAnimationsWithDictionary:function (dictionary,plist) {
        var animations = dictionary["animations"];
        if (!animations) {
            cc.log(cc._LogInfos.animationCache__addAnimationsWithDictionary);
            return;
        }

        var version = 1;
        var properties = dictionary["properties"];
        if (properties) {
            version = (properties["format"] != null) ? parseInt(properties["format"]) : version;
            var spritesheets = properties["spritesheets"];
            var spriteFrameCache = cc.spriteFrameCache;
            var path = cc.path;
            for (var i = 0; i < spritesheets.length; i++) {
                spriteFrameCache.addSpriteFrames(path.changeBasename(plist, spritesheets[i]));
            }
        }

        switch (version) {
            case 1:
                this._parseVersion1(animations);
                break;
            case 2:
                this._parseVersion2(animations);
                break;
            default :
                cc.log(cc._LogInfos.animationCache__addAnimationsWithDictionary_2);
                break;
        }
    },

    /**
     * <p>
     *    Adds an animations from a plist file.<br/>
     *    Make sure that the frames were previously loaded in the cc.SpriteFrameCache.
     * </p>
     * @param {String} plist
     */
    addAnimations:function (plist) {

        cc.assert(plist, cc._LogInfos.animationCache_addAnimations_2);

        var dict = cc.loader.getRes(plist);

        if(!dict){
            cc.log(cc._LogInfos.animationCache_addAnimations);
            return;
        }

        this._addAnimationsWithDictionary(dict,plist);
    },

    _parseVersion1:function (animations) {
        var frameCache = cc.spriteFrameCache;

        for (var key in animations) {
            var animationDict = animations[key];
            var frameNames = animationDict["frames"];
            var delay = parseFloat(animationDict["delay"]) || 0;
            var animation = null;
            if (!frameNames) {
                cc.log(cc._LogInfos.animationCache__parseVersion1, key);
                continue;
            }

            var frames = [];
            for (var i = 0; i < frameNames.length; i++) {
                var spriteFrame = frameCache.getSpriteFrame(frameNames[i]);
                if (!spriteFrame) {
                    cc.log(cc._LogInfos.animationCache__parseVersion1_2, key, frameNames[i]);
                    continue;
                }
                var animFrame = new cc.AnimationFrame();
                animFrame.initWithSpriteFrame(spriteFrame, 1, null);
                frames.push(animFrame);
            }

            if (frames.length === 0) {
                cc.log(cc._LogInfos.animationCache__parseVersion1_3, key);
                continue;
            } else if (frames.length != frameNames.length) {
                cc.log(cc._LogInfos.animationCache__parseVersion1_4, key);
            }
            animation = cc.Animation.create(frames, delay, 1);
            cc.animationCache.addAnimation(animation, key);
        }
    },

    _parseVersion2:function (animations) {
        var frameCache = cc.spriteFrameCache;

        for (var key in animations) {
            var animationDict = animations[key];

            var isLoop = animationDict["loop"];
            var loopsTemp = parseInt(animationDict["loops"]);
            var loops = isLoop ? cc.REPEAT_FOREVER : ((isNaN(loopsTemp)) ? 1 : loopsTemp);
            var restoreOriginalFrame = (animationDict["restoreOriginalFrame"] && animationDict["restoreOriginalFrame"] == true) ? true : false;
            var frameArray = animationDict["frames"];

            if (!frameArray) {
                cc.log(cc._LogInfos.animationCache__parseVersion2, key);
                continue;
            }

            //Array of AnimationFrames
            var arr = [];
            for (var i = 0; i < frameArray.length; i++) {
                var entry = frameArray[i];
                var spriteFrameName = entry["spriteframe"];
                var spriteFrame = frameCache.getSpriteFrame(spriteFrameName);
                if (!spriteFrame) {
                    cc.log(cc._LogInfos.animationCache__parseVersion2_2, key, spriteFrameName);
                    continue;
                }

                var delayUnits = parseFloat(entry["delayUnits"]) || 0;
                var userInfo = entry["notification"];
                var animFrame = new cc.AnimationFrame();
                animFrame.initWithSpriteFrame(spriteFrame, delayUnits, userInfo);
                arr.push(animFrame);
            }

            var delayPerUnit = parseFloat(animationDict["delayPerUnit"]) || 0;
            var animation = new cc.Animation();
            animation.initWithAnimationFrames(arr, delayPerUnit, loops);
            animation.setRestoreOriginalFrame(restoreOriginalFrame);
            cc.animationCache.addAnimation(animation, key);
        }
    },

	_clear: function () {
		this._animations = {};
	}
};