CODEWITHSUNDEEP
inputlibgdx
Dragomirus
Dragomirus

Reputation: 449

Libgdx InputListener touchUp

I've added InputListener to my actor and now I want to check if touchUp event is inside the actor.

Simple example: I'm starting draging mouse inside my actor and i'm finishing outside my actor.

I though that touchUp event will start only if mouse is inside my actor but it also start outside my actor (when touchDown event start inside my actor).

How to check if touchUp event is inside my actor only?

Upvotes: 0

Views: 584

Answers (2)

Madmenyo
Madmenyo

Reputation: 8584

Sorry miss read your question noticed when you changed it.

Still, I would add a listener and simply check coordinates of actor. The x and y given with a clicklistener just return local coordinates of the actor so a simple check vs width and height is enough.

    ClickListener cl = new ClickListener()
    {
        @Override
        public void touchUp(InputEvent event, float x, float y, int pointer, int button) {
            super.touchUp(event, x, y, pointer, button);
            if (x > 0 && y > 0 && x < getWidth() && y < getHeight())
            {
                System.out.println("Released within actor");
            }
        }
    };

actor.addListener(cl);

Upvotes: 0

m.antkowicz
m.antkowicz

Reputation: 13581

I see two solutions here:

  1. To use some flag to check if the pointer is inside the actor and handle it with exit method:

    image.addListener(new InputListener(){
    boolean touched = false;
    @Override
    public boolean touchDown(InputEvent event, float x, float y, int pointer, int button)
    {
        touched = true;

        System.out.println("TOUCH DOWN");
        return true;
    }

    @Override
    public void touchUp(InputEvent event, float x, float y, int pointer, int button)
    {
        if(touched) 
        {
            touched = false;
            System.out.println("TOUCH UP");
        }
    }

    @Override
    public void exit(InputEvent event, float x, float y, int pointer, Actor toActor)
    {
        touched = false;
    }

});

  2. To check if pointer is inside the actor inside touchUp

    @Override
    public void touchUp(InputEvent event, float x, float y, int pointer, int button)
    {
        Stage stage = event.getTarget().getStage();
        Vector2 mouse = stage.screenToStageCoordinates( new Vector2(Gdx.input.getX(), Gdx.input.getY()) );

        if(stage.hit(mouse.x, mouse.y, true) == event.getTarget()) 
        {
            System.out.println("TOUCH UP");
        }
    }

Both solutions need some extra code but both should be working fine.

Upvotes: 1

Related Questions