Question

Anyone know if it’s possible to set the upper left corner of the Android device as 0,0?
As of now, it seems the location is (on my HTC desire) X: 320, Y: 0.
I want it to be 0,0.

Anyone know if it’s possible? Or how to. As I’m placing a lot of tiles, that later will also use the X and Y positions, I find it favorable that the top left corner is 0,0.

Answer 1

You need to look into using cameras.

OrthographicCamera camera;
camera = new OrthographicCamera((float) 100, (100 * (9.0f/16.0f) ));    //UI
camera.position.set(0f, 0f, 0);

I typically store that camera somewhere, and then you need to apply it to the spritebatch each time your render loops.

applyCamera(spriteBatch, camera);
GfxD.spriteBatch.begin();{
    for(Sprite4 sprite: SpriteList) {   sprite.draw(spriteBatch);   }
}GfxD.spriteBatch.end();

…and my “apply camera” method looks like…

public static void applyCamera  (SpriteBatch spritebatch, OrthographicCamera camera){
    camera.update();
    spritebatch.getProjectionMatrix().set(camera.combined);
}

You will have to edit the code for your own purposes, but hopefully that should get you started in the right direction.