using System.Collections;
using System.Collections.Generic;
using UnityEngine;

/// <summary>
/// 单例模式类模板
/// </summary>
public class UnitySingleton<T> : MonoBehaviour
    where T : Component
{
    private static T m_instance;

    public static T Instance
    {
        get
        {
            if (m_instance == null)
            {
                m_instance = FindObjectOfType<T>();
                if (m_instance == null)
                {
                    Debug.LogError("缺少 " + typeof(T) + " 这个单例，没法在场景中找到");
                }
            }
            return m_instance;
        }
    }

    protected virtual void Awake()
    {
        if (m_instance == null)
        {
            m_instance = this as T;
        }
        else
        {
            Destroy(gameObject);
        }
    }
}