CODEWITHSUNDEEP
c++ioscocos2d-xcocos2d-x-3.0
erik.ohlin
erik.ohlin

Reputation: 127

How To Change A Sprite Image When Tapped

I know this is probably one of the easiest questions ever to answer, but I've done some searching and can't seem to find the answer to this... How do I change a sprites image when the user taps on it in Cocos2d-x?

The only way I know of is using a menu image like this:

auto box = MenuItemImage::create("box_untapped.png", "box_tapped.png");

but that only changes the image while the user is tapping it.. how do I get it to stay changed even after they let go of the button?

Upvotes: 2

Views: 6921

Answers (1)

Emadpres
Emadpres

Reputation: 3737

This code do not need any menu/button/... but a Touch Listener :

auto mySprite = Sprite("A.png");

auto touchListener = EventListenerTouchOneByOne::create();
    ///
touchListener->onTouchBegan = [=](Touch* touch, Event* event){
    auto target = static_cast<Sprite*>(event->getCurrentTarget());
    Point locationInNode = target->convertToNodeSpace(touch->getLocation());
    Size s = target->getContentSize();
    Rect rect = Rect(0, 0, s.width, s.height);
    if (rect.containsPoint(locationInNode))
    {
        mySprite->setTexture("B.png"); // Here
        return true;
    }
    return false;
};

touchListener->onTouchEnded(Touch* touch, Event* event)
{
    mySprite->setTexture("B.png"); // Or Here
}
_eventDispatcher->addEventListenerWithSceneGraphPriority(touchListener, mySprite);

Hope helps

Upvotes: 3

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