Unity延迟几秒执行一个方法小工具

using UnityEngine;
using System.Collections;
using UnityEditor;
using System.Collections.Generic;
/// 

/// 我的小工具
/// 
public class MyTools : MonoBehaviour
{
    public static MyTools Instance;

    private void Awake()
    {
        Instance = this;
    }

    /// 

    /// 延时几秒执行某个方法
    /// 
    /// 调用内容
    /// 等待时间
    public void Delay(CustomVoid pDelegate, float time)
    {

        StartCoroutine(TimeWait(pDelegate, time));
    }

    public IEnumerator TimeWait(CustomVoid pDelegate, float time)
    {
        yield return new WaitForSeconds(time);

        pDelegate.Invoke();
    }
    public delegate void CustomVoid();
}

例子：

 bool isOpen;
    void Update()
    {

        // 表示当isOpen为True的时候 将其设置为false  然后3秒之后isOpen重新设置为True
        if (isOpen)
        {
            isOpen = false;

            MyTools.Instance.Delay(() => { isOpen = true; }, 3);
        }

    }