程序仍在运行时的用户输入 [英] User input while program still running

问题描述

我正在做一个乒乓球比赛. 除了用户移动拨片外，我一切正常.我正在使用一个while(true)循环，其中调用了所有方法.如何使用WASD移动拨片?我希望程序在等待用户输入时继续运行.我尝试使用Console.ReadKey()，但它冻结了程序

I'm making a pong game. I got everything working but the user moving the paddle. I am using a while (true) loop in which all the methods are invoked. How can I move the paddle with WASD? I want the program to keep going while waiting for user input. I tried using Console.ReadKey() but it freezes the program

推荐答案

虽然我建议使用游戏库(尽管我找不到专门用于终端机的库，但

While I would suggest using a game library (although I can't find any specifically for a terminal there is Curses Sharp which might be useful), this can be done manually ..

核心问题是Console.ReadKey 会阻止(或冻结")，直到可以读取密钥为止.使用 Console.KeyAvailable 来查看当前是否有密钥可用:

The core issue is that Console.ReadKey blocks (or "freezes") until a key is available to read; use Console.KeyAvailable to see if a key is currently available:

while (true) {
   // Clear out all keys in the queue; there may be multiple (hence "while")
   while (Console.KeyAvailable) {
       // Won't block because there is a key available to read. Handle it.
       var key = Console.ReadKey(true);
       HandleKey(key);
   }
   // Do other processing ..
   ProcessGameTick();
   // .. and be sure to Yield/Sleep to prevent 100% CPU usage.
   Thread.Sleep(0);
}

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