public void renderGround(Screen screen) {
        Graphics2D g = screen.getGraphics();

        g.setPaint(new GradientPaint(0, 381, new Color(20, 3, 20), 0, screen.h, new Color(7, 7, 7)));
        g.fillRect(0, 380, screen.w, screen.h);

        g.dispose();
    }