我如何修复我的 c# 控制台网络框架 PacMan 游戏？

如何解决我如何修复我的 c# 控制台网络框架 PacMan 游戏？

我开始编写 pacMan 控制台游戏并且在 pacMan 移动时遇到了问题，我只能向左移动他，如果我向上、向下或向右移动他，会发生非常奇怪的事情，但我的代码看起来不错。请检查我在 RunGame 类中的 runGame 函数（这里我有移动代码）并告诉我如何修复它。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace PacMan
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.OutputEncoding = Encoding.UTF8;
            Console.InputEncoding = Encoding.GetEncoding(1251);
            Console.CursorVisible = false;

            gameField.setGameArr();
            gameField.drawField();

            while (true)
            {
                RunGame.runGame();
            }
        }
    }

    class gameField
    {
        public static Random random = new Random();

        public static string[,] gameArr = new string[28,84]; // 28 rows and 84 columns | Row - y coordinate,Column - x
        public static int xnum = gameArr.GetUpperBound(1); 
        public static int yNum = gameArr.GetUpperBound(0);

        public static void setGameArr()
        {
            gameArr[5,5] = PacMan.rightSprite;

            for (int y = 0; y < yNum; y++)
            {
                for (int x = 0; x < xnum; x++)
                {
                    if (y == 0 || x == 0 || y == yNum - 1 || x == xnum - 1)
                    {
                        gameArr[y,x] = "#";
                    }
                }
            }


            for (int i = 0; i < yNum; i++)
            {
                for (int j = 0; j < xnum; j++)
                {
                    if (gameArr[i,j] == null)
                        gameArr[i,j] = ".";
                }
            }
        }

        public static void drawField()
        {
            for (int y = 0; y < yNum; y++)
            {
                for (int x = 0; x < xnum; x++)
                {
                    if (gameArr[y,x] != null)
                        Console.Write(gameArr[y,x]);
                    else Console.Write("");
                }
                Console.WriteLine();
            }
        }
    }

    class PacMan
    {
        public static string upSprite = "v";
        public static string downsprite = "^"; //"ᗣ";
        public static string rightSprite = "<"; //"ᗧ";
        public static string leftSprite = ">"; //"ᗤ";

        public static (int y,int x) getPlayerPos()
        {
            for (int y = 0; y < gameField.yNum; y++)
            {
                for (int x = 0; x < gameField.xnum; x++)
                {
                    if (gameField.gameArr[y,x] == upSprite ||
                        gameField.gameArr[y,x] == downsprite ||
                        gameField.gameArr[y,x] == rightSprite ||
                        gameField.gameArr[y,x] == leftSprite)
                    {
                        return (y,x);
                    }
                }
            }

            return (0,0);
        }
    }

    class RunGame
    {
        public static void runGame()
        {
            (int y,int x) playerPos = PacMan.getPlayerPos();

            ConsoleKeyInfo ki = Console.ReadKey(true);
            if (ki.Key == ConsoleKey.LeftArrow &&
                gameField.gameArr[playerPos.y,playerPos.x - 1] != "#")
            {
                gameField.gameArr[playerPos.y,playerPos.x] = null;

                gameField.gameArr[playerPos.y,playerPos.x - 1] = PacMan.leftSprite;

                Console.Clear();
                gameField.drawField();
            }
            if (ki.Key == ConsoleKey.RightArrow &&
                gameField.gameArr[playerPos.y,playerPos.x + 1] != "#")
            {
                gameField.gameArr[playerPos.y,playerPos.x + 1] = PacMan.rightSprite;

                Console.Clear();
                gameField.drawField();
            }
            if (ki.Key == ConsoleKey.UpArrow &&
                gameField.gameArr[playerPos.y - 1,playerPos.x] != "#")
            {
                gameField.gameArr[playerPos.y,playerPos.x] = null;

                gameField.gameArr[playerPos.y - 1,playerPos.x] = PacMan.upSprite;

                Console.Clear();
                gameField.drawField();
            }
            if (ki.Key == ConsoleKey.DownArrow &&
                gameField.gameArr[playerPos.y + 1,playerPos.x] = null;

                gameField.gameArr[playerPos.y + 1,playerPos.x] = PacMan.downsprite;

                Console.Clear();
                gameField.drawField();
            }
        }
    }

    class Ghost
    {
    }
}