void Start()
{
volumeSlider.value = PlayPrefsController.GetMasterVolume();
difficultySlider.value = PlayPrefsController.GetDifficulty();
}
// Start is called before the first frame update
void Start()
{
DontDestroyOnLoad(this);
audioSource = GetComponent <AudioSource>();
audioSource.volume = PlayPrefsController.GetMasterVolume();
}