c# - 如何使用 System.Threading.Timer 和 Thread.Sleep？

Question

我做了一个迷宫游戏。我需要一个滴答作响的计时器。我试图创建一个这样的类:

using System;
using System.Threading;

namespace Maze
{
    class Countdown
    {
        public void Start()
        {
            Thread.Sleep(3000);              
            Environment.Exit(1);
        }
    }
}

并在代码的开头调用 Start() 方法。运行它后，我试图通过失败的迷宫移动化身。如果我没记错的话，Thread.Sleep 会使我的其余代码不再工作。如果我有办法做其他事情，请告诉我。

Answer 1

您当前的代码不工作的原因是调用 Thread.Sleep() 会停止当前线程上的任何执行，直到给定的时间过去。因此，如果您在主游戏线程上调用 Countdown.Start()(我猜您正在这样做)，您的游戏将卡住，直到 Sleep() 调用结束。

---

相反，您需要使用 System.Timers.Timer

看看 MSDN documentation .

更新:现在希望能匹配更多您的场景

public class Timer1
 {
     private int timeRemaining;

     public static void Main()
     {
         timeRemaining = 120; // Give the player 120 seconds

         System.Timers.Timer aTimer = new System.Timers.Timer();

         // Method which will be called once the timer has elapsed
         aTimer.Elapsed + =new ElapsedEventHandler(OnTimedEvent);

         // Set the Interval to 3 seconds.
         aTimer.Interval = 3000;

         // Tell the timer to auto-repeat each 3 seconds
         aTimer.AutoReset = true;

         // Start the timer counting down
         aTimer.Enabled = true;

         // This will get called immediately (before the timer has counted down)
         Game.StartPlaying();
     }

     // Specify what you want to happen when the Elapsed event is raised.
     private static void OnTimedEvent(object source, ElapsedEventArgs e)
     {
         // Timer has finished!
         timeRemaining -= 3; // Take 3 seconds off the time remaining

         // Tell the player how much time they've got left
         UpdateGameWithTimeLeft(timeRemaining);
     }
 }