cocos2dx 精灵的移动(2)

p>    this->addTarget();  

p>}  

p>  

p>  

p>  

p>void HelloWorld::addTarget(){  

p>      

p>    CCSize winSize = CCDirector::sharedDirector()->getWinSize();  

p>      

p>    CCSprite *target = CCSprite::create("Target.png");  

p>      

p>    //随机位置  

p>    int minY = target->getContentSize().height/2.0;  

p>    int maxY = winSize.height - target->getContentSize().height/2.0;  

p>    int rangeY = maxY - minY;  

p>    int actualY = rand()%rangeY + minY;  

p>      

p>    target->setPosition(ccp(winSize.width - target->getContentSize().width/2.0, actualY));  

p>    this->addChild(target);  

p>      

p>    //随机速度  

p>    float minDuration = 2.0;  

p>    float maxDuration = 4.0;  

p>    int rangeDuration = maxDuration - minDuration;  

p>    float actualDuration = rand()%rangeDuration + minDuration;  

p>      

p>      

p>      

p>      

p>    CCFiniteTimeAction *actionMove = CCMoveTo::create(actualDuration, ccp(0 - target->getContentSize().width/2.0, actualY));//0代表屏幕外，这句表示在3秒内从初始位置移动到屏幕外  

p>      

p>      

p>    //增加一个回调函数，回收移动到屏幕外的精灵  

p>    CCFiniteTimeAction *actionMoveDone = CCCallFuncN::create(this, callfuncN_selector(HelloWorld::spriteMoveFinished));  

p>    target->runAction(CCSequence::create(actionMove,actionMoveDone,NULL));  

p>      

p>}  

p>  

p>void HelloWorld::spriteMoveFinished(cocos2d::CCNode *sender){  

p>    CCSprite *sprite = (CCSprite *)sender;  

p>    this->removeChild(sprite, true);  

p>}  

p>  

p>  

p>  

p>  

p>void HelloWorld::menuCloseCallback(CCObject* pSender)  

p>{  

p>    CCDirector::sharedDirector()->end();  

p>  

p>#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)  

p>    exit(0);  

p>#endif  

p>}  

p> 

p>运行结果如下：

p>