public void init(GameContainer gc) throws SlickException { createGround(); SpriteSheet image = new SpriteSheet(new Image("images/BallSprites.png"), 16, 16); player = new ObjectPlayerBetter( PLAYER_START_X, PLAYER_START_Y, (int) (image.getSubImage(0, 0).getWidth() * 1), (int) (image.getSubImage(0, 0).getHeight() * 1), image); player.init(); }