static void getDifficulty()
    {
        String m = r.Difficulty;

        if (m.equalsIgnoreCase("Hard"))
        {
            diff = hard;
        }
        else if (m.equalsIgnoreCase("Normal"))
        {
            diff = normal;
        }
        else if (m.equalsIgnoreCase("Easy"))
        {
            diff = easy;
        }
    }