auto listener = EventListenerTouchOneByOne::create();
    listener->onTouchBegan = [](Touch* touch, Event* event){
        Point pos = touch->getLocation();
        Point pos1 = touch->getLocation();        /* 獲取單擊坐標，基於3D */
        Point pos2 = touch->getLocationInView();   /* 獲取單擊坐標，基於2D 
 
*/
        Point pos3 = Director::getInstance()->convertToGL(pos2);   /* 獲取單擊坐標，基於Cocos2d-x */
        log("HelloWorldScene onTouchBegan! pos1 x=%f, y=%f", pos1.x, pos1.y);
        log("HelloWorldScene onTouchBegan! pos2 x=%f, y=%f", pos2.x, pos2.y);
        log("HelloWorldScene onTouchBegan! pos3 x=%f, y=%f
 
", pos3.x, pos3.y);
        return true;
    };
    listener->onTouchMoved = [](Touch* touch, Event* event){
        log("HelloWorldScene onTouchMoved");
    };
    listener->onTouchEnded = [=](Touch* touch, Event* event){
        log("HelloWorldScene onTouchEnded");
    };
    _eventDispatcher
 
->addEventListenerWithSceneGraphPriority(listener, this);

1、OnTouchBegan()：觸摸開始，就是觸碰的一瞬間會調用這個函數。

2、OnTouchMoved()：在觸摸中，觸摸不放開移動會調用這個函數。

3、OnTouchEnded()：觸摸結束，就是觸摸結束的一瞬間會調用這個函數。

cocos2d-x,屏幕觸摸事情