unity 计时管理

using UnityEngine;using System;using System.Collections;using System.Collections.Generic;public class TimerManager{    private static Dictionary<string, TimerItem> dictList = new Dictionary<string, TimerItem>();    /// <summary>    /// 注册计时    /// </summary>    /// <param name="timerKey">Timer key.</param>    /// <param name="totalNum">Total number.</param>    /// <param name="delayTime">Delay time.</param>    /// <param name="callback">Callback.</param>    /// <param name="endCallback">End callback.</param>    public static void Register(string timerKey, int totalNum, float delayTime, Action<int> callback, Action endCallback)    {        TimerItem timerItem = null;        if(!dictList.ContainsKey(timerKey))        {            GameObject objectItem = new GameObject ();            objectItem.name = timerKey;            timerItem = objectItem.AddComponent<TimerItem> ();            dictList.Add(timerKey, timerItem);        }else        {            timerItem = dictList[timerKey];        }        if(timerItem != null)        {            timerItem.Run(totalNum, delayTime, callback, endCallback);        }    }    /// <summary>    /// 取消注册计时    /// </summary>    /// <param name="timerKey">Timer key.</param>    public static void UnRegister(string timerKey)    {        if(!dictList.ContainsKey(timerKey)) return;        TimerItem timerItem = dictList [timerKey];        dictList.Remove(timerKey);        if(timerItem != null)        {            timerItem.Stop ();            GameObject.Destroy(timerItem.gameObject);        }    }}class TimerItem : MonoBehaviour{    private int totalNum;    private float delayTime;    private Action<int> callback;    private Action endCallback;    private int currentIndex;    public void Run(int totalNum, float delayTime, Action<int> callback, Action endCallback)    {        this.Stop ();        this.currentIndex = 0;        this.totalNum = totalNum;        this.delayTime = delayTime;        this.callback = callback;        this.endCallback = endCallback;        this.StartCoroutine ("EnumeratorAction");    }    public void Stop()    {        this.StopCoroutine ("EnumeratorAction");    }    private IEnumerator EnumeratorAction()    {        yield return new WaitForSeconds (this.delayTime);        this.currentIndex ++;        if(this.callback != null) this.callback(this.currentIndex);        if(this.totalNum != -1)        {            if(this.currentIndex >= this.totalNum)            {                if(this.endCallback != null) this.endCallback();                yield break;            }        }        this.StartCoroutine("EnumeratorAction");    }}