EventListener not working

cocos2d-x
1

I have 2 dimensional vector of sprites. Each sprite have EventListenerTouchOneByOne

auto _touchListener = EventListenerTouchOneByOne::create();
_touchListener->setSwallowTouches(true);

_touchListener->onTouchBegan = [&](Touch* touch, Event* event)
{
	Vec2 p = touch->getLocation();
	Rect rect = this->getBoundingBox();

	if (rect.containsPoint(p))
	{
		return true;
	}

	return false;
};

_touchListener->onTouchEnded = [=](cocos2d::Touch* touch, cocos2d::Event* event)
{
	Card::touchEvent(touch);
};

I add sprites on scene but EventListener not working. Why? Sorry. My English bad.

2

are you sure that rect.containsPoint(p) is returning true?

3

Oh. I’ts return false. But now EventListener works only on last added on scene sprite. If i touch him or other sprite. Work only one

4

Someone can help?

5

Did you add this event to each Sprite you want it to respond for?

6

I think you need one listener per object, otherwise the lambda that captures the this pointer and where you get the rect from just overwrites the previous one.

7

I have class Card which is inherited from Node. Card contain 2 objects. Sprite and Label. In Card class i add EventListenerTouchOneByOne. I post it before.

In Board class i add cards in loop.

Card* card = Card::create(((i * ROW + j) + 2) / 2);	
card->setPosition(_cardsPosition[i * ROW + j].x * DISTANCE_BETWEEN_CARD, _cardsPosition[i * ROW + j].y * DISTANCE_BETWEEN_CARD);	
card->setPositionOnTable(_cardsPosition[i * ROW + j].x, _cardsPosition[i * ROW + j].y);
card->hide();
addChild(card, 1);
9

I don’t see you adding an event to card

10

Events add in init funcrion in card class.

bool Card::init(int value)
{
	if (!Node::init())
	{
		return false;
	}


auto _touchListener = EventListenerTouchOneByOne::create();
_touchListener->setSwallowTouches(true);

_touchListener->onTouchBegan = [&](Touch* touch, Event* event)
{
	auto target = static_cast<Card*>(event->getCurrentTarget());
	Point locationInNode = target->convertToNodeSpace(touch->getLocation());
	Size s = target->getContentSize();
	Vec2 p = touch->getLocation();
	//Rect rect = this->getBoundingBox();
	Rect rect = Rect(0, 0, s.width, s.height);

	if (rect.containsPoint(p))
	{
		return true;
	}

	return false;
};

_touchListener->onTouchEnded = [=](cocos2d::Touch* touch, cocos2d::Event* event)
{
	Card::touchEvent(touch);
};

Director::getInstance()->getEventDispatcher()->addEventListenerWithSceneGraphPriority(_touchListener, this);
11

This doesn’t look like something I am used to seeing.

This is something I do in one of my projects

auto listener = cocos2d::EventListenerTouchOneByOne::create();
    listener->setSwallowTouches(true);
    
    listener->onTouchBegan = [&](cocos2d::Touch* touch, cocos2d::Event* event)
    {
        cocos2d::Vec2 p = touch->getLocation();
        cocos2d::Rect rect = this->getBoundingBox();
        
        if(rect.containsPoint(p))
        {
            CornSprite::touchEvent(touch);
            return true;
        }
        
        return false;
    };
    
    listener->onTouchEnded = [=](cocos2d::Touch* touch, cocos2d::Event* event)
    {
    };
    
    cocos2d::Director::getInstance()->getEventDispatcher()->addEventListenerWithSceneGraphPriority(listener, this);
12

Isn’t the touch in screen space, so it needs to be converted to node space?

13

I’am trying do like you say. It’s not working