cocos2d-x创建精灵动画

创建动画一般过程：

1、创建精灵框架缓存，并向其中添加相应的动画文件（plist）,最后，通过动画集缓存生产动画

CCSpriteFrameCache *cache = CCSpriteFrameCache::sharedSpriteFrameCache();
    cache->addSpriteFramesWithFile("animations/grossini.plist");
    cache->addSpriteFramesWithFile("animations/grossini_gray.plist", "animations/grossini_gray.png");
    CCSpriteBatchNode *spritebatch = CCSpriteBatchNode::create("animations/grossini.png");//用于批量生产精灵 
    CCArray* animFrames = CCArray::createWithCapacity(15);//动态生成数组，类似于vector
    for(int i = 1; i < 4; i++)
    {
        //sprintf的作用是字符串格式化，主要功能是把格式化的数据写入某个字符串中。sprintf(str, “ani_conch_%d.png”, 1)后str的值就变成了：ani_conch_1.png
        sprintf(str, "grossini_blue_%02d.png",i);//两位数字，不够的话，用零补全
        CCSpriteFrame *frame = cache->spriteFrameByName(str);
        animFrames->addObject(frame);
    }
    animation = CCAnimation::createWithSpriteFrames(animFrames, 0.2f);   //创建动画集，切换时间为0.2s
    // Add an animation to the Cache
    CCAnimationCache::sharedAnimationCache()->addAnimation(animation, "dance_blue"); // 把此动画集加入动画集缓存中，并命名为dance_blue
    CCAnimationCache *animCache = CCAnimationCache::sharedAnimationCache();     //共享动画集缓存 
    CCAnimation *normal = animCache->animationByName("dance");      //获得动画集缓存
    CCAnimate *animN = CCAnimate::create(normal);      //创建动画
           

另外，CCString * str = CCString ::createWithFormat ( "market_chipsLogo%d.png" , idx);也可以实现替换数字的效果。

   2、直接传人多个图片文件，生成动画

CCSprite *mainsprite=CCSprite::create("catBody1.png");
    CCAnimation *animation=CCAnimation::create();
    animation->addSpriteFrameWithFileName("catBody1.png");
    animation->addSpriteFrameWithFileName("catBody2-4.png");
    animation->addSpriteFrameWithFileName("catBody3.png");
    animation->addSpriteFrameWithFileName("catBody2-4.png");
    animation->setDelayPerUnit(0.1f);//设置动画的间隔时间
    animation->setRestoreOriginalFrame(true);//是否返回第一帧
    mainsprite->runAction(CCRepeatForever::create(CCAnimate::create(animation)));
           

3、直接传入一张大图，包含多个小图，生成动画

CCTexture2D *pTexture=CCTextureCache::sharedTextureCache()->addImage("hero.png");
    CCSpriteFrame *frame0=CCSpriteFrame::createWithTexture(pTexture,CCRectMake(0,0,32,32));
    CCSpriteFrame *frame1=CCSpriteFrame::createWithTexture(pTexture,CCRectMake(32,0,32,32));
    CCSpriteFrame *frame2=CCSpriteFrame::createWithTexture(pTexture,CCRectMake(64,0,32,32));
    CCSpriteFrame *frame3=CCSpriteFrame::createWithTexture(pTexture,CCRectMake(96,0,32,32));
    CCArray  *animFrames=CCArray::create();
    CC_BREAK_IF(!animFrames);
    animFrames->addObject(frame0);
    animFrames->addObject(frame1);
    animFrames->addObject(frame2);
    animFrames->addObject(frame3);
    CCAnimation *animation=CCAnimation::createWithSpriteFrames(animFrames,0.2f);
    heroSprite0->runAction(CCRepeatForever::create(animate));
           

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