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); }