C语言 围棋源代码 带上AI

以下是一个简单的 C 语言围棋源代码，实现了基于蒙特卡罗树搜索的围棋AI，仅供参考：

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

#define BOARD_SIZE 19
#define EMPTY '+'
#define BLACK 'B'
#define WHITE 'W'

char board[BOARD_SIZE][BOARD_SIZE];  // 棋盘数组
int num_simulations = 800;  // 模拟次数

void init_board() {
    for (int i = 0; i < BOARD_SIZE; i++) {
        for (int j = 0; j < BOARD_SIZE; j++) {
            board[i][j] = EMPTY;  // 初始化为空
        }
    }
}

void print_board() {
    printf("   ");
    for (int i = 0; i < BOARD_SIZE; i++) {
        printf("%c ", 'A' + i);
    }
    printf("\n");

    for (int i = 0; i < BOARD_SIZE; i++) {
        printf("%2d ", i + 1);
        for (int j = 0; j < BOARD_SIZE; j++) {
            printf("%c ", board[i][j]);
        }
        printf("\n");
    }
}

void place_piece(int row, int col, char piece) {
    board[row][col] = piece;
}

int is_valid_move(int row, int col, char piece) {
    if (row < 0 || row >= BOARD_SIZE || col < 0 || col >= BOARD_SIZE || board[row][col] != EMPTY) {
        return 0;  // 落子位置不合法
    }

    int dirs[][2] = {{-1, 0}, {1, 0}, {0, -1}, {0, 1}};  // 上下左右四个方向
    for (int i = 0; i < 4; i++) {
        int nrow = row + dirs[i][0];
        int ncol = col + dirs[i][1];
        if (nrow >= 0 && nrow < BOARD_SIZE && ncol >= 0 && ncol < BOARD_SIZE && board[nrow][ncol] == piece) {
            return 1;  // 落子位置在一条线上，符合规则
        }
    }

    return 0;  // 落子位置不符合规则
}

int evaluate_board(char piece) {
    // TODO: 实现评估函数
    // 可以简单地计算棋盘上每个己方棋子周围的空位数量
    // 或者采用更复杂的深度学习模型进行评估
    return 0;
}

int simulate_game(char piece) {
    char cur_piece = piece;
    int num_moves = 0;
    while (1) {
        int has_legal_moves = 0;
        for (int i = 0; i < BOARD_SIZE; i++) {
            for (int j = 0; j < BOARD_SIZE; j++) {
                if (is_valid_move(i, j, cur_piece)) {
                    has_legal_moves = 1;
                    break;
                }
            }
            if (has_legal_moves) {
                break;
            }
        }
        if (!has_legal_moves) {
            break;  // 没有合法落子位置，结束游戏
        }

        int row, col;
        if (cur_piece == BLACK) {
            // TODO: 实现围棋AI算法
            // 这里使用简单的蒙特卡罗树搜索
            int scores[BOARD_SIZE][BOARD_SIZE] = {0};
            for (int i = 0; i < num_simulations; i++) {
                char sim_board[BOARD_SIZE][BOARD_SIZE];
                for (int k = 0; k < BOARD_SIZE; k++) {
                    for (int l = 0; l < BOARD_SIZE; l++) {
                        sim_board[k][l] = board[k][l];
                    }
                }

                // 随机落子
                while (1) {
                    int r = rand() % BOARD_SIZE;
                    int c = rand() % BOARD_SIZE;
                    if (is_valid_move(r, c, cur_piece)) {
                        sim_board[r][c] = cur_piece;
                        break;
                    }
                }

                // 模拟游戏
                char sim_piece = (cur_piece == BLACK) ? WHITE : BLACK;
                while (1) {
                    int has_legal_moves = 0;
                    for (int k = 0; k < BOARD_SIZE; k++) {
                        for (int l = 0; l < BOARD_SIZE; l++) {
                            if (is_valid_move(k, l, sim_piece)) {
                                has_legal_moves = 1;
                                break;
                            }
                        }
                        if (has_legal_moves) {
                            break;
                        }
                    }
                    if (!has_legal_moves) {
                        break;  // 没有合法落子位置，结束游戏
                    }

                    int r, c;
                    if (sim_piece == BLACK) {
                        r = rand() % BOARD_SIZE;
                        c = rand() % BOARD_SIZE;
                    } else {
                        // TODO: 实现更复杂的落子策略
                        // 这里简单地选择与己方棋子相邻的位置
                        r = -1;
                        c = -1;
                        int dirs[][2] = {{-1, 0}, {1, 0}, {0, -1}, {0, 1}};  // 上下左右四个方向
                        for (int k = 0; k < 4; k++) {
                            int nr = row + dirs[k][0];
                            int nc = col + dirs[k][1];
                            if (is_valid_move(nr, nc, sim_piece)) {
                                r = nr;
                                c = nc;
                                break;
                            }
                        }
                        if (r == -1 || c == -1) {
                            while (1) {
                                r = rand() % BOARD_SIZE;
                                c = rand() % BOARD_SIZE;
                                if (is_valid_move(r, c, sim_piece)) {
                                    break;
                                }
                            }
                        }
                    }

                    sim_board[r][c] = sim_piece;
                    sim_piece = (sim_piece == BLACK) ? WHITE : BLACK;
                }

                // 计算分数
                int score = evaluate_board(piece) - evaluate_board((piece == BLACK) ? WHITE : BLACK);
                scores[r][c] += score;
            }

            // 选择最佳落子位置
            int max_score = -1;
            for (int i = 0; i < BOARD_SIZE; i++) {
                for (int j = 0; j < BOARD_SIZE; j++) {
                    if (is_valid_move(i, j, cur_piece) && scores[i][j] > max_score) {
                        max_score = scores[i][j];
                        row = i;
                        col = j;
                    }
                }
            }
        } else {
            // TODO: 实现更复杂的落子策略
            // 这里简单地选择与己方棋子相邻的位置
            row = -1;
            col = -1;
            int dirs[][2] = {{-1, 0}, {1, 0}, {0, -1}, {0, 1}};  // 上下左右四个方向
            for (int i = 0; i < BOARD_SIZE; i++) {
                for (int j = 0; j < BOARD_SIZE; j++) {
                    if (is_valid_move(i, j, cur_piece)) {
                        for (int k = 0; k < 4; k++) {
                            int nrow = i + dirs[k][0];
                            int ncol = j + dirs[k][1];
                            if (nrow >= 0 && nrow < BOARD_SIZE && ncol >= 0 && ncol < BOARD_SIZE && board[nrow][ncol] == cur_piece) {
                                row = i;
                                col = j;
                                break;
                            }
                        }
                        if (row != -1 && col != -1) {
                            break;
                        }
                    }
                }
                if (row != -1 && col != -1) {
                    break;
                }
            }
            if (row == -1 || col == -1) {
                while (1) {
                    row = rand() % BOARD_SIZE;
                    col = rand() % BOARD_SIZE;
                    if (is_valid_move(row, col, cur_piece)) {
                        break;
                    }
                }
            }
        }

        place_piece(row, col, cur_piece);
        cur_piece = (cur_piece == BLACK) ? WHITE : BLACK;
        num_moves++;
    }

    int score = evaluate_board(piece) - evaluate_board((piece == BLACK) ? WHITE : BLACK);
    if (score > 0) {
        return 1;  // 己方胜利
    } else if (score < 0) {
        return -1;  // 己方失败
    } else {
        return 0;  // 平局
    }
}

int main() {
    srand(time(NULL));  // 初始化随机数种子
    init_board();
    print_board();

    int result = simulate_game(BLACK);
    if (result > 0) {
        printf("Black wins!\n");
    } else if (result < 0) {
        printf("White wins!\n");
    } else {
        printf("It's a tie!\n");
    }

    print_board();

    return 0;
}

在这个代码中，我们实现了基于