Cocos2dx: Detecting Single Touches

Create the following in the .h file:

class HelloWorld : public cocos2d::Layer

{

public:

    // there's no 'id' in cpp, so we recommend returning the class instance pointer

    static cocos2d::Scene* createScene();

    virtual bool init();

    

    // implement the "static create()" method manually

    CREATE_FUNC(HelloWorld);

    

    bool onTouchBegan(cocos2d::Touch *touch, cocos2d::Event *event);

    void onTouchMoved(cocos2d::Touch *touch, cocos2d::Event *event);

    void onTouchEnded(cocos2d::Touch *touch, cocos2d::Event *event);

};

Create the following in the implementation file:

// on "init" you need to initialize your instance

bool HelloWorld::init()

{

   

    if ( !Layer::init() )

    {

        return false;

    }

    

    

    auto listener = EventListenerTouchOneByOne::create();

    listener->setSwallowTouches(true);

    listener->onTouchBegan = CC_CALLBACK_2(HelloWorld::onTouchBegan, this);

    listener->onTouchMoved = CC_CALLBACK_2(HelloWorld::onTouchMoved, this);

    listener->onTouchEnded = CC_CALLBACK_2(HelloWorld::onTouchEnded, this);

    _eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);

    return true;

}

bool HelloWorld::onTouchBegan(cocos2d::Touch* touch, cocos2d::Event* event){

    CCLOG("onTouchBegan x = %f, y = %f", touch->getLocation().x,
                                         touch->getLocation().y);

    return true;

}

void HelloWorld::onTouchMoved(cocos2d::Touch* touch, cocos2d::Event* event){

    CCLOG("onTouchMoved x = %f, y = %f", touch->getLocation().x,
                                         touch->getLocation().y);

   

}

void HelloWorld::onTouchEnded(cocos2d::Touch* touch, cocos2d::Event* event){

    CCLOG("onTouchEnded x = %f, y = %f", touch->getLocation().x,
                                         touch->getLocation().y);

    

}

Alternatively, you can do this:

Director::getInstance()->getEventDispatcher()->addEventListenerWithSceneGraphPriority(touchListener, this);

instead of:

_eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);