public void MuteSoundSwitch() { if (isMute) { isMute = false; //bukak sound SoundButtonIcon.GetComponent <CustomSpriteSwapper>().changeAlphaColour(!isMute); FindObjectOfType <GameManager>().isSound = !isMute; } else { isMute = true; //tutup sound SoundButtonIcon.GetComponent <CustomSpriteSwapper>().changeAlphaColour(!isMute); FindObjectOfType <GameManager>().isSound = !isMute; } Debug.Log("Sound is " + !isMute); PlayerPrefs.SetInt(SOUND_SETTING, boolConverter.boolToInt(isMute)); }