C# 写个 俄罗斯方块

好的，下面是一个简单的 C# 俄罗斯方块游戏代码：

using System;
using System.Threading;

namespace Tetris
{
    class Program
    {
        // 游戏区域大小
        const int Width = 10;
        const int Height = 20;

        // 方块图形数组
        static readonly int[][][] Tetrominoes = new int[][][]
        {
            new int[][] // I
            {
                new int[] { 1, 1, 1, 1 }
            },
            new int[][] // J
            {
                new int[] { 1, 1, 1 },
                new int[] { 0, 0, 1 }
            },
            new int[][] // L
            {
                new int[] { 1, 1, 1 },
                new int[] { 1, 0, 0 }
            },
            new int[][] // O
            {
                new int[] { 1, 1 },
                new int[] { 1, 1 }
            },
            new int[][] // S
            {
                new int[] { 0, 1, 1 },
                new int[] { 1, 1, 0 }
            },
            new int[][] // T
            {
                new int[] { 1, 1, 1 },
                new int[] { 0, 1, 0 }
            },
            new int[][] // Z
            {
                new int[] { 1, 1, 0 },
                new int[] { 0, 1, 1 }
            }
        };

        // 随机数生成器
        static readonly Random Random = new Random();

        // 当前方块
        static int[][] CurrentTetromino;
        static int CurrentX;
        static int CurrentY;

        // 游戏区域
        static readonly int[][] Board = new int[Height][];
        static int Score;

        // 控制台输出锁
        static readonly object ConsoleLock = new object();

        static void Main(string[] args)
        {
            // 初始化游戏区域
            for (int i = 0; i < Height; i++)
            {
                Board[i] = new int[Width];
            }

            // 开始游戏循环
            while (true)
            {
                // 产生新的方块
                CurrentTetromino = Tetrominoes[Random.Next(Tetrominoes.Length)];
                CurrentX = Width / 2 - CurrentTetromino[0].Length / 2;
                CurrentY = 0;

                // 游戏循环
                while (true)
                {
                    // 处理用户输入
                    if (Console.KeyAvailable)
                    {
                        var key = Console.ReadKey(true);
                        switch (key.Key)
                        {
                            case ConsoleKey.LeftArrow:
                                if (IsLegalMove(CurrentTetromino, CurrentX - 1, CurrentY))
                                {
                                    CurrentX--;
                                }
                                break;
                            case ConsoleKey.RightArrow:
                                if (IsLegalMove(CurrentTetromino, CurrentX + 1, CurrentY))
                                {
                                    CurrentX++;
                                }
                                break;
                            case ConsoleKey.DownArrow:
                                if (IsLegalMove(CurrentTetromino, CurrentX, CurrentY + 1))
                                {
                                    CurrentY++;
                                }
                                break;
                            case ConsoleKey.Spacebar:
                                // 下落到底部
                                while (IsLegalMove(CurrentTetromino, CurrentX, CurrentY + 1))
                                {
                                    CurrentY++;
                                }
                                break;
                        }
                    }

                    // 计算下一帧
                    var nextTetrominoY = CurrentY + 1;
                    if (IsLegalMove(CurrentTetromino, CurrentX, nextTetrominoY))
                    {
                        CurrentY = nextTetrominoY;
                    }
                    else
                    {
                        // 将当前方块放入游戏区域
                        for (int i = 0; i < CurrentTetromino.Length; i++)
                        {
                            for (int j = 0; j < CurrentTetromino[i].Length; j++)
                            {
                                if (CurrentTetromino[i][j] == 1)
                                {
                                    Board[CurrentY + i][CurrentX + j] = 1;
                                }
                            }
                        }

                        // 消除满行
                        int linesCleared = 0;
                        for (int i = 0; i < Height; i++)
                        {
                            if (IsRowFull(i))
                            {
                                ClearRow(i);
                                linesCleared++;
                            }
                        }

                        // 更新分数
                        Score += linesCleared * linesCleared;

                        // 判断游戏是否结束
                        if (IsGameOver())
                        {
                            lock (ConsoleLock)
                            {
                                Console.SetCursorPosition(0, Height + 1);
                                Console.WriteLine("Game over! Your score is {0}.", Score);
                            }
                            return;
                        }

                        // 跳出当前方块的下落循环
                        break;
                    }

                    // 渲染游戏区域
                    lock (ConsoleLock)
                    {
                        Console.Clear();
                        for (int i = 0; i < Height; i++)
                        {
                            for (int j = 0; j < Width; j++)
                            {
                                Console.Write(Board[i][j] == 1 ? "#" : ".");
                            }
                            Console.WriteLine();
                        }
                        Console.WriteLine("Score: {0}", Score);
                    }

                    // 暂停一段时间
                    Thread.Sleep(100);
                }
            }
        }

        // 判断当前方块是否可以移动到指定位置
        static bool IsLegalMove(int[][] tetromino, int x, int y)
        {
            for (int i = 0; i < tetromino.Length; i++)
            {
                for (int j = 0; j < tetromino[i].Length; j++)
                {
                    if (tetromino[i][j] == 1)
                    {
                        int boardX = x + j;
                        int boardY = y + i;
                        if (boardX < 0 || boardX >= Width || boardY < 0 || boardY >= Height || Board[boardY][boardX] == 1)
                        {
                            return false;
                        }
                    }
                }
            }
            return true;
        }

        // 判断指定行是否已满
        static bool IsRowFull(int row)
        {
            for (int j = 0; j < Width; j++)
            {
                if (Board[row][j] == 0)
                {
                    return false;
                }
            }
            return true;
        }

        // 清除指定行
        static void ClearRow(int row)
        {
            for (int i = row; i > 0; i--)
            {
                for (int j = 0; j < Width; j++)
                {
                    Board[i][j] = Board[i - 1][j];
                }
            }
        }

        // 判断游戏是否结束
        static bool IsGameOver()
        {
            for (int j = 0; j < Width; j++)
            {
                if (Board[0][j] == 1)
                {
                    return true;
                }
            }
            return false;
        }
    }
}

这个代码实现了一个简单的俄罗斯方块游戏，使用控制台进行输出。玩家可以使用方向键来移动方块，使用空格键加速方块下落。游戏结束时会显示分数。