Cocos2d-x 多点触摸

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多点触摸的实现步骤与单点触摸类似，setTouchEnabled(true)开启触摸功能，注册触摸事件，重载多点触摸函数：ccTouchesBegan(开始)、ccTouchesMoved(移动)、ccTouchesEnded(结束)、ccTouchesCancelled(系统中断取消触摸事件)，每个多点触摸函数都可以通过遍历整个CCSet来获得所有的触点。

程序代码：

头文件加入触摸重载函数：

              virtual void registerWithTouchDispatcher(void);virtual void ccTouchesBegan(cocos2d::CCSet *pTouches, cocos2d::CCEvent *pEvent);virtual void ccTouchesMoved(cocos2d::CCSet *pTouches, cocos2d::CCEvent *pEvent);virtual void ccTouchesEnded(cocos2d::CCSet *pTouches, cocos2d::CCEvent *pEvent);virtual void ccTouchesCancelled(cocos2d::CCSet *pTouches, cocos2d::CCEvent *pEvent);

cpp文件加入：

setTouchEnabled(true);

定义实现这些函数：

void HelloWorld::registerWithTouchDispatcher(){CCDirector *pdir = CCDirector::sharedDirector();pdir->getTouchDispatcher()->addStandardDelegate(this, 0);}void HelloWorld::ccTouchesBegan(cocos2d::CCSet *pTouches, cocos2d::CCEvent *pEvent){CCSetIterator iter = pTouches->begin();for (; iter != pTouches->end(); iter++){CCTouch* pTouch = (CCTouch*)(*iter);CCPoint location = pTouch->getLocation();CCLOG("ccTouchesBegan x: %f, y: %f", location.x, location.y);}}void HelloWorld::ccTouchesEnded(cocos2d::CCSet *pTouches, cocos2d::CCEvent *pEvent){CCSetIterator iter = pTouches->begin();for (; iter != pTouches->end(); iter++){CCTouch* pTouch = (CCTouch*)(*iter);CCPoint location = pTouch->getLocation();CCLOG("ccTouchesEnded x: %f, y: %f", location.x, location.y);}}void HelloWorld::ccTouchesMoved(cocos2d::CCSet *pTouches, cocos2d::CCEvent *pEvent){CCSetIterator iter = pTouches->begin();for (; iter != pTouches->end(); iter++){CCTouch* pTouch = (CCTouch*)(*iter);CCPoint location = pTouch->getLocation();CCLOG("ccTouchesMoved x: %f, y: %f", location.x, location.y);}}void HelloWorld::ccTouchesCancelled(cocos2d::CCSet *pTouches, cocos2d::CCEvent *pEvent){CCSetIterator iter = pTouches->begin();for (; iter != pTouches->end(); iter++){CCTouch* pTouch = (CCTouch*)(*iter);CCPoint location = pTouch->getLocation();CCLOG("x: %f, y: %f", location.x, location.y);}}

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