void SetDifficulty() { switch (PlayerPrefs.GetInt("Difficulty")) { case (int)Difficulty.EASY: rate = 0.4f; sound.ChangeMusic(2); break; case (int)Difficulty.NORMAL: rate = 0.25f; sound.ChangeMusic(3); break; case (int)Difficulty.HARD: rate = 0.1f; sound.ChangeMusic(4); break; } }