public class Singleton<T> : MonoBehaviour where T : MonoBehaviour
        {

            public static bool isApplicationQuitting;
            private static T instance;
            private static System.Object lockObj = new System.Object();



            public static T Instance
            {
                get
                {

                    if (isApplicationQuitting)
                        return null;

                    lock (lockObj)
                    {
                        if (instance == null)
                        {
                            instance = FindObjectOfType<T>();

                            if (instance == null)
                            {
                                var singleton = new GameObject("[SINGLETON] " + typeof(T));
                                instance = singleton.AddComponent<T>();
                                DontDestroyOnLoad(singleton);
                            }

                        }

                        return instance;
                    }
                }
            }


            public virtual void OnDestroy()
            {
                isApplicationQuitting = true;
            }


        }