action(三)

CCSize boxSize = CCSizeMake(100.0f, 100.0f);

    CCLayerColor *box = CCLayerColor::create(ccc4(255, 255, 0, 255));
    box->setAnchorPoint(ccp(0, 0));
    box->setPosition(ccp(190, 110));
    box->setContentSize(boxSize);

CCAnimation* animation = CCAnimation::create();
    for( int i=1;i<15;i++)
    {
        char szName[100] = {0};
        sprintf(szName, "Images/grossini_dance_%02d.png", i);
        animation->addSpriteFrameWithFileName(szName);
    }
    // should last 2.8 seconds. And there are 14 frames.
    animation->setDelayPerUnit(2.8f / 14.0f);
    animation->setRestoreOriginalFrame(true);

    CCAnimate* action = CCAnimate::create(animation);
    m_grossini->runAction(CCSequence::create(action, action->reverse(), NULL));

CCFiniteTimeAction：有限次动作执行类，就是按时间顺序执行一系列动作，执行完后动作结束；CCSpeed：调整实体(节点)的执行速度；CCFollow：可以使节点跟随指定的另一个节点移动。下面我们主要来学习CCFiniteTimeAction，这个类在平常的开发中很常见。
CCFiniteTimeAction又分为CCActionInstanse（瞬时动作的基类）和CCActionInterval（延时动作的基类）。CCActionInstanse：没什么特别，跟CCActionInterval主要区别是没有执行过程，动作瞬间就执行完成了；CCActionInterval：执行需要一定的时间（或者说一个过程）。

 

void ActionSequence2::onEnter()
{
    ActionsDemo::onEnter();

    alignSpritesLeft(1);

    m_grossini->setVisible(false);

    CCFiniteTimeAction*  action = CCSequence::create(
        CCPlace::create(ccp(200,200)),
        CCShow::create(),
        CCMoveBy::create(1, ccp(100,0)),
        CCCallFunc::create(this, callfunc_selector(ActionSequence2::callback1)),
        CCCallFuncN::create(this, callfuncN_selector(ActionSequence2::callback2)),
        CCCallFuncND::create(this, callfuncND_selector(ActionSequence2::callback3), (void*)0xbebabeba),
        NULL);

    m_grossini->runAction(action);
}

void ActionSequence2::callback1()
{
    CCSize s = CCDirector::sharedDirector()->getWinSize();
    CCLabelTTF *label = CCLabelTTF::create("callback 1 called", "Marker Felt", 16);
    label->setPosition(ccp( s.width/4*1,s.height/2));

    addChild(label);
}

void ActionSequence2::callback2(CCNode* sender)
{
    CCSize s = CCDirector::sharedDirector()->getWinSize();
    CCLabelTTF *label = CCLabelTTF::create("callback 2 called", "Marker Felt", 16);
    label->setPosition(ccp( s.width/4*2,s.height/2));

    addChild(label);
}

void ActionSequence2::callback3(CCNode* sender, void* data)
{
    CCSize s = CCDirector::sharedDirector()->getWinSize();
    CCLabelTTF *label = CCLabelTTF::create("callback 3 called", "Marker Felt", 16);
    label->setPosition(ccp( s.width/4*3,s.height/2));

    addChild(label);
}

 

void ActionRepeatForever::onEnter()
{
    ActionsDemo::onEnter();

    centerSprites(1);

    CCFiniteTimeAction*  action = CCSequence::create(
        CCDelayTime::create(1),
        CCCallFuncN::create( this, callfuncN_selector(ActionRepeatForever::repeatForever) ), 
        NULL);

    m_grossini->runAction(action);
}

void ActionRepeatForever::repeatForever(CCNode* pSender)
{
    CCRepeatForever *repeat = CCRepeatForever::create( CCRotateBy::create(1.0f, 360) );

    pSender->runAction(repeat);
}