[cocos2d-x]-会动的精灵

小鸟一直在扑翅膀的代码块：

  auto sprite = Sprite::create();
Animation *animation = Animation::create();
animation->addSpriteFrameWithFileName("bird_blue_1.png");
animation->addSpriteFrameWithFileName("bird_blue_2.png");
animation->addSpriteFrameWithFileName("bird_blue_0.png");
animation->setLoops(-1);
animation->setDelayPerUnit(0.5/3.0);
animation->setRestoreOriginalFrame(true);
Animate *animate = Animate::create(animation);
sprite->runAction(RepeatForever::create(animate));