public static Body createGround( World world, float x, float y, float width, float height, float restituition) { BodyDef bodyDef = new BodyDef(); bodyDef.position.set(new Vector2(x, y)); Body body = world.createBody(bodyDef); PolygonShape shape = new PolygonShape(); shape.setAsBox(width / 2, height / 2); Fixture fixture = body.createFixture(shape, Constants.WALL_DENSITY); fixture.setRestitution(restituition); body.setUserData(new GroundUserData()); shape.dispose(); return body; }