C#实现AI五子棋游戏的示例代码

 /// <summary>
        /// 转换棋子的绘制位置
        /// </summary>
        /// <param name="x"></param>
        /// <param name="y"></param>
        /// <returns></returns>
        private Point GetChessPostion(int x, int y)
        {
            return new Point((int)(x * cellSize.Width) - chessSize.Width / 2, (int)(y * cellSize.Height) - chessSize.Height / 2);
        }

 /// <summary>
        /// 判断胜负
        /// </summary>
        /// <param name="x"></param>
        /// <param name="y"></param>
        /// <param name="type"></param>
        private void IsWin(int x, int y, bool type)
        {
            for (int w = 0; w < winSum; w++)
            {
                if (wins[x, y, w] == 1)
                {
                    if (!type)
                    {
                        userWin[w]++;
                        aiWin[w] = 6;
                        if (userWin[w] == 5)
                        {
                            graphics.DrawString("赢", new Font("黑体", 11.0f), new SolidBrush(Color.Red), GetChessPostion(x, y));
                            if (MessageBox.Show("你赢了,是否重新开始？") == DialogResult.OK)
                            {
                                Reset();
                            }
                            break;
                        }
                    }
                    else
                    {
                        aiWin[w]++;
                        userWin[w] = 6;
                        if (aiWin[w] == 5)
                        {
                            graphics.DrawString("赢", new Font("黑体", 11.0f), new SolidBrush(Color.Red), GetChessPostion(x, y));
                            if (MessageBox.Show("你输了,是否重新开始？") == DialogResult.OK)
                            {
                                Reset();
                            }

                            break;
                        }
                    }
                }
            }
            isUserPlay = !isUserPlay;
        }

 /// <summary>
        /// 人工下棋操作
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void panel_board_Click(object sender, EventArgs e)
        {
            if (!isUserPlay)
            {
                return;
            }
            MouseEventArgs mouse = e as MouseEventArgs;
            if (mouse.X < cellSize.Width || mouse.X > boardSize.Width - cellSize.Width)
            {
                return;
            }
            if (mouse.Y < cellSize.Height || mouse.Y > boardSize.Height - cellSize.Height)
            {
                return;
            }
            int x = Convert.ToInt32(Math.Round((decimal)mouse.X / (decimal)cellSize.Width, MidpointRounding.AwayFromZero));
            int y = Convert.ToInt32(Math.Round((decimal)mouse.Y / (decimal)cellSize.Width, MidpointRounding.AwayFromZero));
            Point chessPoint = GetChessPostion(x, y);
            if (!chessList.Exists(s => s.point == chessPoint))
            {
                chessList.Add(new ChessModel { point = chessPoint, type = true });

                graphics.DrawImage(Properties.Resources.黑棋子, chessPoint.X, chessPoint.Y, chessSize.Width, chessSize.Height);

                IsWin(x, y, false);
                SetStatus(x, y, false);
                if (!isUserPlay)
                {
                    AIChess();
                }
            }
        }

/// <summary>
        /// AI下棋操作
        /// </summary>
        private void AIChess()
        {
            int[,] userScore = new int[xCellCount, yCellCount];
            int[,] aiScore = new int[xCellCount, yCellCount];

            int max = 0;
            Point aiChess = new Point();

            for (int x = 0; x < xCellCount; x++)
            {
                for (int y = 0; y < yCellCount; y++)
                {
                    if (!chessList.Exists(s => s.point == GetChessPostion(x, y)))
                    {
                        for (int w = 0; w < winSum; w++)
                        {
                            if (wins[x, y, w] == 1)
                            {
                                if (userWin[w] == 1)
                                {
                                    userScore[x, y] += 100;
                                }
                                if (userWin[w] == 2)
                                {
                                    userScore[x, y] += 400;
                                }
                                if (userWin[w] == 3)
                                {
                                    userScore[x, y] += 3000;
                                }
                                if (userWin[w] == 4)
                                {
                                    userScore[x, y] += 20000;
                                }


                                if (aiWin[w] == 1)
                                {
                                    aiScore[x, y] += 200;
                                }
                                if (aiWin[w] == 2)
                                {
                                    aiScore[x, y] += 500;
                                }
                                if (aiWin[w] == 3)
                                {
                                    aiScore[x, y] += 3400;
                                }
                                if (aiWin[w] == 4)
                                {
                                    aiScore[x, y] += 30000;
                                }

                            }
                        }

                        if (userScore[x, y] > max)
                        {
                            max = userScore[x, y];

                            aiChess.X = x;
                            aiChess.Y = y;
                        }
                        else if (userScore[x, y] == max)
                        {
                            if (aiScore[x, y] > aiScore[x, y])
                            {
                                aiChess.X = x;
                                aiChess.Y = y;
                            }
                        }


                        if (aiScore[x, y] > max)
                        {
                            max = aiScore[x, y];

                            aiChess.X = x;
                            aiChess.Y = y;
                        }
                        else if (aiScore[x, y] == max)
                        {
                            if (userScore[x, y] > userScore[x, y])
                            {
                                aiChess.X = x;
                                aiChess.Y = y;
                            }
                        }
                    }
                }
            }
            Point chessPoint = GetChessPostion(aiChess.X, aiChess.Y);
            chessList.Add(new ChessModel() { point = chessPoint, type = false });
            graphics.DrawImage(Properties.Resources.白棋子, chessPoint.X, chessPoint.Y, chessSize.Width, chessSize.Height);

            IsWin(aiChess.X, aiChess.Y, true);
            SetStatus(aiChess.X, aiChess.Y, true);
        }