/** * Draw a filled diamond of side length 2r, centred on (x, y). * * @param x the x-coordinate of the centre of the diamond * @param y the y-coordinate of the centre of the diamond * @param r radius is half the length of any side of the diamond * @throws RuntimeException if r is negative */ public static void filledDiamond(double x, double y, double r) { offscreen.fill(ShapeAssist.diamond(x, y, r)); draw(); }