cocos2d-x,屏幕触摸事情

Posted 2020-10-11 _xiaohaige

　　 auto listener = EventListenerTouchOneByOne::create();
    listener->onTouchBegan = [](Touch* touch, Event* event){
        Point pos = touch->getLocation();
        Point pos1 = touch->getLocation();        /* 获取单击坐标，基于3D */
        Point pos2 = touch->getLocationInView();   /* 获取单击坐标，基于2D */
        Point pos3 = Director::getInstance()->convertToGL(pos2);   /* 获取单击坐标，基于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()：触摸开始，就是触碰的一瞬间会调用这个函数。

2、OnTouchMoved()：在触摸中，触摸不放开移动会调用这个函数。

3、OnTouchEnded()：触摸结束，就是触摸结束的一瞬间会调用这个函数。