private void Awake()
{
audioSource = GetComponent <AudioSource>();
if (instance == null)
{
instance = this;
}
else if (instance != this)
{
Destroy(gameObject);
if (sceneIndex != SceneManager.GetActiveScene().buildIndex)
{
instance.SwitchBGM();
}
sceneIndex = SceneManager.GetActiveScene().buildIndex;
}
DontDestroyOnLoad(gameObject);
}
