Question

I’m using AndEngine to try and create a simple sprite of a ball rotating 360 degrees constantly. The rotation is working fine. However, the picture of the ball looks distorted ONLY in portrait mode.

Portrait:

Landscape:

You’ll notice how in Portrait mode the ball seems to be stretching upwards. I’m not sure what could be causing this. I would just like the ball to remain perfectly circular.

In case anybody asks.. the ball image is perfectly circular and is 200px x 200px.

Here is my code:

Ball = new Sprite(100, 100, 200, 200, this.BallRegion);

LoopEntityModifier EntityModifier = 
             new LoopEntityModifier(new RotationModifier(10, 0, 360));          
Ball.registerEntityModifier(EntityModifier);

scene.attachChild(Ball);

My resolution policy:

    this.mCamera = new Camera(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT);
    return new org.anddev.andengine.engine.Engine(new EngineOptions(true,
            null, new RatioResolutionPolicy(CAMERA_WIDTH, CAMERA_HEIGHT),
            this.mCamera));

Answer 1

Figured it out myself. To handle the orientation change with a live wallpaper in AndEngine, you can use the following code:

@Override
public void onConfigurationChanged(Configuration newConfig)
{
    if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT)
    {
        scene.setScale(1);
    }
    else if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE)
    {
        scene.setScaleX(480.0f / 720.0f);
        scene.setScaleY(1.0f);
    }

            //Rebuilds the scene. onLoadScene() calls to this method.
    BuildScene();

}

You may have to alter the values depending on your resolution policy, but this works perfectly for me.