Cocos2d-x判断点击到一个精灵

//on "init" you need to initialize your instance
bool  HelloWorld::init()
{
    bool  bRet = false ;
    do
    {
        CC_BREAK_IF(! CCLayer::init());

        //Get window size.
        CCSize size = CCDirector::sharedDirector()->getWinSize();

        //pSprite is a CCSprite for test.
        pSprite = CCSprite::spriteWithFile( "fjut.png" );
        CC_BREAK_IF(! pSprite);

        //Place the sprite on the center of the screen
        pSprite->setPosition(ccp(size.width/2, size.height/2));

        this ->addChild(pSprite, 0);
        bRet = true ;
    } while  (0);

    this ->setIsTouchEnabled( true );
    return  bRet;
}
void  HelloWorld::registerWithTouchDispatcher()
{
    CCTouchDispatcher::sharedDispatcher()->addTargetedDelegate( this , -1988, true );
}

static  CCRect getRect(CCNode* pNode)
{
    CCRect rc;
    rc.origin = pNode->getPosition();
    rc.size = pNode->getContentSize();
    rc.origin.x -= rc.size.width*0.5;
    rc.origin.y -= rc.size.height*0.5;
    return  rc;
}

void  HelloWorld::ccTouchEnded(CCTouch* pTouch, CCEvent* event)
{
    CCPoint touchLocation = convertTouchToNodeSpace(pTouch);
    if (CCRect::CCRectContainsPoint(getRect(pSprite), touchLocation))
    {
        printf ( "我被点中了!\n" );
    }
}

bool  HelloWorld::ccTouchBegan(CCTouch* touch, CCEvent* event)
{
    return  true ;
}