cocos2d-x 多触点监听

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//首先到cocos2d-x项目下的ios目录下。找到AppController.mm文件，在函数 didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 中加入例如以下函数：  [__glView setMultipleTouchEnabled:YES];

bool HelloWorld::init()
{

    if ( !CCLayer::init() )
    {
        return false;
    }

    //开启多触点监听务必调用此函数
    setTouchEnabled(true);

    CCSprite* sp1 = CCSprite::create("Icon.png");
    sp1->setPosition(ccp(150, 200));
    addChild(sp1, 0, 23);

    CCSprite* sp2 = CCSprite::create("Icon.png");
    sp2->setColor(ccc3(0, 255, 0));
    sp2->setPosition(ccp(150, 100));
    addChild(sp2, 0, 24);

    return true;
}

//第一次碰触
void HelloWorld::ccTouchesBegan(cocos2d::CCSet *touches, cocos2d::CCEvent *event)
{
    CCSetIterator inter = touches->begin();
    for(; inter != touches->end(); inter++)
    {
        CCTouch* touch = (CCTouch*)(*inter);
        CCPoint point = touch->getLocation();
        if(touch->getID() == 0) //第一个触点
        {
            CCSprite* sp1 = (CCSprite*)getChildByTag(23);
            sp1->setPosition(point);
        }else if(touch->getID() == 1)//第二个触点
        {
            CCSprite* sp2 = (CCSprite*)getChildByTag(24);
            sp2->setPosition(point);
        }
    }
}

//移动或拖拽
void HelloWorld::ccTouchesMoved(cocos2d::CCSet *touches, cocos2d::CCEvent *event)
{
    CCSetIterator inter = touches->begin();
    for(; inter != touches->end(); inter++)
    {
        CCTouch* touch = (CCTouch*) (*inter);
        CCPoint point = touch->getLocation();
        if(touch->getID() == 0)
        {
            CCSprite* sp1 = (CCSprite*)getChildByTag(23);
            sp1->setPosition(point);
        }else if(touch->getID() == 1)
        {
            CCSprite* sp2 = (CCSprite*)getChildByTag(24);
            sp2->setPosition(point);
        }
    }
}

//用户手指抬起
void HelloWorld::ccTouchesEnded(cocos2d::CCSet *touches, cocos2d::CCEvent *event)
{

}

//多触点的托付监听注冊放在onEnter的生命函数中会造成程序异常退出。默认都写在以下函数中。
void HelloWorld::registerWithTouchDispatche()
{
    CCDirector::sharedDirector()->getTouchDispatcher()->addStandardDelegate(this, 0);
}


//删除多触点的托付监听
void HelloWorld::onExit()
{
    CCDirector::sharedDirector()->getTouchDispatcher()->removeDelegate(this);

    //这句务必要写
    CCLayer::onExit();
}