void Awake()
 {
     if (instance == null)
     {
         instance = this;
     }
     else
     {
         Destroy(gameObject);
         return;
     }
 }
 public void Awake()
 {
     if (instance == null)
     {
         instance = this;
     }
     else
     {
         Destroy(gameObject);
         return;
     }
     mgbScript = mgb.GetComponent <MainGameBackend>();
     gameLost  = mgbScript.gameLost;
 }