using System;
using UnityEngine;

namespace OHM.UnityToolkit
{
	public class UniqueInstance<T> : MonoBehaviour
	{
		private static UniqueInstance<T> _instance;

		public static T Instance
		{
			get
			{
				return (_instance is T typed) ? typed : default(T);
			}
		}

		public void Awake()
		{
			if (_instance != null)
			{
				Debug.LogWarning("There is more than one _instance of type " + typeof(T));
			}
			else
			{
				_instance = this;
			}
			AwakeInstance();
		}

		protected virtual void AwakeInstance()
		{
		}

	}
}