void OnDestroy()
 {
     if (_instance == this)
     {
         _instance = null;
     }
 }
 void Awake()
 {
     if (_instance != null)
     {
         Debug.LogError("More than two instances of ScorchGameManager exist. Destroying this one");
         Destroy(this.transform.root.gameObject);
         return;
     }
     else
     {
         _instance = this;
     }
 }