using System.Collections;
using System.Collections.Generic;
using UnityEngine;
/********************************************************************************
*Create By CG
*Function unityMono类单例模式
*********************************************************************************/
namespace CG.Framework
{
    public class MonoSingleton<T> : MonoBehaviour where T : MonoBehaviour
    {
        private static T _instance = null;
        public static bool IsExisted { get; private set; } = false;//退出时做判断是否存在，防止基类报错
        protected MonoSingleton() { }
        public static T Instance
        {
            get
            {
                return _instance;
            }
        }

        private void Awake()
        {
            if (_instance == null)
            {
                _instance = gameObject.GetComponent<T>();
                DontDestroyOnLoad(gameObject);//切换场景不销毁
                IsExisted = true;
                AwakeSelf();
            }
            else
            {
                Destroy(gameObject);
            }
        }
        protected virtual void AwakeSelf()
        {

        }

        protected virtual void OnDestroy()
        {
            IsExisted = false;
        }
    }
}