為什么我游戲中蛇的中間部分有時會消失？

Question

只有當我向左移動時我試圖向上或向下移動我的蛇時它才會發生。 如果我在向右移動之后向上或向下移動它就不會發生。

我創建了一個Point Type列表

List<Point> snakeBody = new List<Point>();
   for(int i = 0 ; i<5 ; i++)
   {
       body.Add(new Point(40 , i +25));
   }

然后我將它打印到網格上

foreach(Point point in snakeBody)
   {
       Console.SetCursorPosition(point.X , point.Y);
       Console.Write((char)2);
   }

這是蛇的運動代碼

do
  {
     Point last = snakeBody[snakeBody.Count - 1];
     Console.SetCursorPosition(last.X , last.Y);
     snakeBody.RemoveAt(snakeBody.Count - 1);
     Console.WriteLine(" ");
     Point nextHead = body[0];
     if(initialInput == ConsoleKey.UpArrow)
     {
         nextHead = new Point(nextHead.X , nextHead.Y-1);
         Console.SetCursorPosition(nextHead.X , nextHead.Y);
         Console.Write("0");
     }
     else if(initialInput == ConsoleKey.DownArrow)
     {
         nextHead = new Point(nextHead.X, nextHead.Y+1);
         Console.SetCursorPosition(nextHead.X , nextHead.Y);
         Console.Write("0");
     }
     else if(initialInput == ConsoleKey.LeftArrow)
     {
         nextHead = new Point(nextHead.X -1 , nextHead.Y);
         Console.SetCursorPosition(nextHead.X , nextHead.Y);
         Console.Write("0"); 
     }
     else if(initialInput == ConsoleKey.RightArrow)
     {
          nextHead = new Point(nextHead.X+1 , nextHead.Y);
          Console.SetCursorPosition(nextHead.X , nextHead.Y);
          Console.Write("0");
     }

     snakeBody.Insert(0,nextHead);

     if(Console.KeyAvailable)
     {   
          initialInput = Console.ReadKey().Key;
     }

  }while(gameIsStillRunning);

Answer 1

您在控制台中看到用戶輸入。 例如，您的擊鍵（左箭頭，右箭頭）會導致插入符號移動，因此有時會出現空白區域。

你可以改變

      initialInput = Console.ReadKey().Key;

至

      initialInput = Console.ReadKey(true).Key;

這將攔截用戶輸入並且不會顯示它