【发布时间】：2019-06-08 22:50:54
【问题描述】：
我当前的打字游戏功能（代码如下）的目标是从 10（困难）、20（中等）或 30（简单）开始倒计时，这取决于游戏开始后用户的难度选择。一旦倒计时达到零或用户用完生命，游戏就结束了（这会停止倒计时）。游戏正常启动，显示用户输入的第一个单词，并从 10 开始倒计时。我目前的问题是我无法弄清楚如何停止计时器从 0 倒计时。我尝试使用 t .Change(Timeout.Infinite , Timeout.Infinite) 并检查 timeLeft == 0 时没有占上风。我真的觉得我想得太多了（或想得不够），非常感谢一些帮助或朝着正确方向轻推！
我的代码如下：
class Program
{
// List of words to be typed
public static string[] words = { "some", "side", "add", "another", "would", "book" ,"water", "came" ,"your" ,"big","both", "from", "learn", "been", "me" ,"school" ,"land", "took", "place",
"try", "line", "tell", "earth", "can", "do","children", "without", "my", "must", "take", "follow", "year", "is", "being", "different", "miss", "could", "on", "he", "open", "night", "were",
"line","said", "around", "an", "plant", "know", "set","been", "life","young","of", "face", "we", "hand", "while", "is", "white", "call", "live","may", "study","after" ,"down", "him", "now", "different",
"could", "over", "work","all", "mean","begin","go","fall", "really", "oil", "before","into","one","name","has","a", "well", "got","something","turn" };
// Keeps track of words array
public static int numWords = 88;
public static int correctWords = 0;
// Initialize our random number generator
public static Random rand = new Random();
// Handles user input
public static string userInput = "";
public static string endGameChoice = "";
// Handles gamestate variables
public static bool gameActive = false;
public static int numLives = 0;
public static int timeLeft;
public static System.Threading.Timer t;
// Entry Point
static void Main(string[] args)
{
// Start the game
Start();
}
// Handles gameplay
static void Play()
{
// Assigns the current word to any random word in
// the words array
string currentWord = words[rand.Next(0, 88)];
// Print the current word separated by lines
Console.WriteLine("********");
Console.WriteLine(currentWord);
Console.WriteLine("********");
// While the answser is incorrect/empty
while (!userInput.Equals("exit"))
{
// Reads user input
userInput = Console.ReadLine();
if (userInput.Equals(""))
{
Play();
}
// Checks if userInput is equal to current word
if (!(userInput.Equals(currentWord)))
{
// If incorrect, display loss of life
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Incorrect!!!");
Console.WriteLine("Lives: " + numLives);
numLives--; // Take a life away
Console.ResetColor();
}
if (numLives == -1)
{
outOfLives();
}
if (userInput.Equals(currentWord))
{
correctWords++;
Play();
}
}
if (userInput.Equals("exit"))
{
Environment.Exit(0);
}
}
// Function for running out of lives
private static void outOfLives()
{
Console.WriteLine("Game over! You typed " + correctWords + " words correctly!");
Console.WriteLine("Type anything and press enter to retry, Press Escape to Quit!");
var endGameKey = Console.ReadKey();
if (endGameKey.Key == ConsoleKey.Escape)
{
Environment.Exit(0);
}
if (endGameKey.Key == ConsoleKey.Enter)
{
restartGame();
}
else
{
outOfLives();
}
}
// Function for running out of time
private static void outOfTime()
{
Console.WriteLine("Out of time! You typed " + correctWords + " words correctly!");
Console.WriteLine("Type anything and press enter to retry, Press Escape to Quit!");
var endGameKey = Console.ReadKey();
if (endGameKey.Key == ConsoleKey.Escape)
{
Environment.Exit(0);
}
if (endGameKey.Key == ConsoleKey.Enter)
{
restartGame();
}
else
{
outOfTime();
}
}
// Prompts user for input for difficulty along with game instructions
static void StartMessage()
{
Console.WriteLine("Welcome to my Typing Practice App!");
Console.WriteLine("Type the word displayed as fast as you can");
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("Difficulties are listed from hardest to easiest");
Console.WriteLine();
Console.WriteLine("Select a difficulty( 1 ,2 , or 3 ): ");
Console.WriteLine();
Console.ResetColor();
Console.ForegroundColor = ConsoleColor.DarkRed;
Console.WriteLine("-- Press ENTER --");
Console.WriteLine("*** Satan Himself ***");
Console.WriteLine();
Console.ResetColor();
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("-- Type 1 --)");
Console.WriteLine("*** Software Engineer ***");
Console.WriteLine();
Console.ResetColor();
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine("-- Type 2 --)");
Console.WriteLine("*** Social Media Fanatic ***");
Console.WriteLine();
Console.ResetColor();
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("-- Type 3 --)");
Console.WriteLine("*** Filthy Peasant ***");
Console.WriteLine();
Console.ResetColor();
string difficultyChoice = Console.ReadLine();
switch (difficultyChoice)
{
case "1":
numLives = 1;
Console.WriteLine("You have 2 lives! Good luck!");
timeLeft = 10;
break;
case "2":
numLives = 3;
Console.WriteLine("You have 4 lives! Good luck!");
timeLeft = 20;
break;
case "3":
numLives = 5;
Console.WriteLine("You have 6 lives! Good luck!");
timeLeft = 30;
break;
default:
numLives = 0;
Console.ForegroundColor = ConsoleColor.DarkRed;
Console.WriteLine("Miss one and you're done!!!!!");
Console.ResetColor();
timeLeft = 10;
break;
}
}
public static void restartGame()
{
Console.Clear();
//numLives = 5;
numWords = words.Length;
correctWords = 0;
Start();
}
public static void SetTimer(Object o)
{
timeLeft--;
Thread.Sleep(1000);
Console.WriteLine(timeLeft);
if (timeLeft == 0)
{
outOfTime();
}
}
public static void Start()
{
// Display start message
StartMessage();
gameActive = true;
t = new System.Threading.Timer(SetTimer, null, 0, 1250);
// While user wants to play
while (!userInput.Equals("exit"))
{
// While the game is active
while (gameActive == true)
{
// Start the game
Play();
}
}
if (userInput.Equals("exit"))
{
Environment.Exit(0);
}
}
}
}
【问题讨论】：
-
我在 SetTimer 方法中看到了这个：Console.WriteLine(timeLeft) - 你看到输出了吗？
-
你为什么在回调中调用
Thread.Sleep(1000);？你也不会在任何地方停止它 -
@toni 我得到了一个正常的倒计时显示，直到它达到 0，这就是它进入负数的时候。我正在用它来测试倒计时
-
@TheGeneral 好点，之前的尝试忽略了这一点。我删除了它
-
也许将一个对象传递给 SetTimer，并将 timeLeft 作为属性 - 这可能是一个上下文/范围问题，虽然很奇怪，因为 timeLeft 被声明为静态。