cocos2dx-触摸事件

 //创建一个精灵
     Sprite *spriteTest = Sprite::create("1.png");
     spriteTest->setPosition(Point(,));
     this->addChild(spriteTest);
    //创建一个单点触摸事件监听
     auto listener = EventListenerTouchOneByOne::create();
     //向下传递触摸
     listener->setSwallowTouches(true);
     //触摸回调
     listener->onTouchBegan = [](Touch *touch,Event *event)
     {
         auto target = event->getCurrentTarget();
         Point locationInNode = target->convertToNodeSpace(touch->getLocation());
         Size size = target->getContentSize();
         Rect rect = Rect(, , size.width, size.height);
         if (rect.containsPoint(locationInNode)) {
             CCLOG("sprite began... x = %f, y = %f", locationInNode.x, locationInNode.y);
             target->setOpacity();
             return true;
         }
         return false;
     };

     listener->onTouchMoved = [](Touch *touch,Event *event)
     {
         auto target = event->getCurrentTarget();
         target->setPosition(target->getPosition()+touch->getDelta());
     };

     listener->onTouchEnded = [](Touch *touch,Event *event)
     {
         auto target = event->getCurrentTarget();
         target->setOpacity();
     };

     _eventDispatcher->addEventListenerWithSceneGraphPriority(listener, spriteTest);