MonoBehaviorExtentsion.cs

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

public static class MonoBehaviorExtentsion 
{

	public static IEnumerator DelayMethod<T>(this MonoBehaviour mono, float waitTime, Action<T> action, T t)
	{
		yield return new WaitForSeconds(waitTime);
		action(t);
	}

	public static IEnumerator DelayMethod(this MonoBehaviour mono, float waitTime, Action action)
	{
		yield return new WaitForSeconds(waitTime);
		action();
	}

	public static Coroutine Delay<T>(this MonoBehaviour mono, float waitTime, Action<T> action, T t)
	{
		return mono.StartCoroutine(DelayMethod(mono, waitTime, action, t));
	}

	public static Coroutine Delay(this MonoBehaviour mono, float waitTime, Action action)
	{
		return mono.StartCoroutine(DelayMethod(mono, waitTime, action));
	}

}