Cocos2d 等待问题

问题描述： 如果我想让一个 sprite 显示3秒钟然后消失，应该怎么做？

解决：使用 CCDelayTime 和 CCCallFunc

CCSprite *sprite = [CCSprite spriteWithFile:@"blabla.png"];
[layer addChild:sprite];
CCDelayTime* waitAction = [CCDelayTime actionWithDuration:3]; //等待3秒
CCCallFunc* vanishAction = [CCCallFunc actionWithTarget:self selector:@selector(removeSprite:)]; //调用removeSprite:方法
CCSequence* sequence = [CCSequence actions:waitAction, vanishAction, nil];
[sprite runAction:sequence];

// 在 removeSprite: 里
[sprite removeFromParentAndCleanup:YES];