cocos2d-x树结构执行动作

void Test2::onEnter()
{
    TestCocosNodeDemo::onEnter();

    CCSize s = CCDirector::sharedDirector()->getWinSize();
    
    CCSprite *sp1 = CCSprite::create(s_pPathSister1);
    CCSprite *sp2 = CCSprite::create(s_pPathSister2);
    CCSprite *sp3 = CCSprite::create(s_pPathSister1);
    CCSprite *sp4 = CCSprite::create(s_pPathSister2);
    
    sp1->setPosition(ccp(100, s.height /2 ));
    sp2->setPosition(ccp(380, s.height /2 ));
    addChild(sp1);
    addChild(sp2);
    
    sp3->setScale(0.25f);
    sp4->setScale(0.25f);
    //把sp1和sp2当做父节点
    sp1->addChild(sp3);
    sp2->addChild(sp4);
    
    CCActionInterval* a1 = CCRotateBy::create(2, 360);
    CCActionInterval* a2 = CCScaleBy::create(2, 2);
    
    CCAction* action1 = CCRepeatForever::create(
                                                    (CCActionInterval*)(CCSequence::create(a1, a2, a2->reverse(), NULL))
                                                );
    CCAction* action2 = CCRepeatForever::create(
                                                    (CCActionInterval*)(CCSequence::create(
                                                                                        (CCActionInterval*)(a1->copy()->autorelease()), 
                                                                                        (CCActionInterval*)(a2->copy()->autorelease()), 
                                                                                        a2->reverse(), 
                                                                                        NULL) )
                                                );
    
    sp2->setAnchorPoint(ccp(0,0));
    //直接对父节点执行动作，子节点也会跟着执行
    sp1->runAction(action1);
    sp2->runAction(action2);
}