GHZMRNavigatorProXR/Assets/Samples/YiYAN/1.0.0/YiYANDemo/Scripts/MonoSingleton.cs

using UnityEngine;

namespace yiyan
{
    public abstract class MonoSingleton<T> : MonoBehaviour where T : MonoBehaviour
    {
        public bool global = true;
        static T instance;
        protected bool _isInit = false;
        public static T Instance
        {
            get
            {
                if (instance == null)
                {
                    instance = (T)FindObjectOfType<T>();
                }
                return instance;
            }

        }

        void Start()
        {
            if (global) DontDestroyOnLoad(this.gameObject);
            Debug.Log(this.gameObject.name);
            this.OnStart();
        }

        protected virtual void OnStart()
        {

        }
    }

}