详解用C语言实现三子棋游戏流程

详解用C语言实现三子棋游戏流程

如果你想用C语言实现三子棋游戏，那么你需要考虑以下几步：

1. 创建游戏棋盘

首先，你需要创建一个9个元素的棋盘数组，用于存储游戏中的棋子。“x”代表玩家1，”o”代表玩家2，“ ”（空格）代表该位置没有落子。以下是创建棋盘的代码示例：

char board[9] = {' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' '};

2. 游戏流程

游戏流程可以分为以下几个部分：

2.1. 绘制棋盘

游戏开始时，需要输出棋盘。以下是绘制棋盘的代码示例：

void draw_board(char board[])
{
   printf(" %c | %c | %c\n", board[0], board[1], board[2]);
   printf("-----------\n");
   printf(" %c | %c | %c\n", board[3], board[4], board[5]);
   printf("-----------\n");
   printf(" %c | %c | %c\n", board[6], board[7], board[8]);
}

2.2. 玩家落子

每一轮游戏开始前，需要判断当前玩家落棋的合法性，并在玩家决定落子位置后更新棋盘。以下是代码示例：

void player_move(char board[], char player_char)
{
   int move;
   printf("Player %c enter your move (0-8): ", player_char);
   scanf("%d", &move);

   if (board[move] == ' ') {
      board[move] = player_char;
   } else {
      printf("Invalid move, try again.\n");
      player_move(board, player_char);
   }
}

2.3. 判断胜负

每一次玩家落子后，需要判断是否有玩家胜利。以下是代码示例：

int has_won(char player_char, char board[])
{
   if ((board[0] == player_char && board[1] == player_char && board[2] == player_char) ||
       (board[3] == player_char && board[4] == player_char && board[5] == player_char) ||
       (board[6] == player_char && board[7] == player_char && board[8] == player_char) ||
       (board[0] == player_char && board[3] == player_char && board[6] == player_char) ||
       (board[1] == player_char && board[4] == player_char && board[7] == player_char) ||
       (board[2] == player_char && board[5] == player_char && board[8] == player_char) ||
       (board[0] == player_char && board[4] == player_char && board[8] == player_char) ||
       (board[2] == player_char && board[4] == player_char && board[6] == player_char)) {
      return 1;
   } else {
      return 0;
   }
}

2.4. 游戏结束

当一方玩家胜利或者平局时，游戏结束。以下是代码示例：

int is_game_over(char board[])
{
   int i;
   for (i = 0; i < 9; i++) {
      if (board[i] == ' ') {
         return 0;
      }
   }
   return 1;
}

3. 示例

下面是一个完整的示例代码：

#include <stdio.h>

void draw_board(char []);
void player_move(char [], char);
int has_won(char, char []);
int is_game_over(char []);

int main(void)
{
   char board[9] = {' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' '};
   char player_char = 'x';
   int game_over = 0;

   while (! game_over) {
      draw_board(board);
      player_move(board, player_char);

      if (has_won(player_char, board)) {
         game_over = 1;
         printf("Player %c has won the game.\n", player_char);
      } else if (is_game_over(board)) {
         game_over = 1;
         printf("The game is a tie.\n");
      } else {
         if (player_char == 'x') {
            player_char = 'o';
         } else {
            player_char = 'x';
         }
      }
   }

   return 0;
}

void draw_board(char board[])
{
   printf(" %c | %c | %c\n", board[0], board[1], board[2]);
   printf("-----------\n");
   printf(" %c | %c | %c\n", board[3], board[4], board[5]);
   printf("-----------\n");
   printf(" %c | %c | %c\n", board[6], board[7], board[8]);
}

void player_move(char board[], char player_char)
{
   int move;
   printf("Player %c enter your move (0-8): ", player_char);
   scanf("%d", &move);

   if (board[move] == ' ') {
      board[move] = player_char;
   } else {
      printf("Invalid move, try again.\n");
      player_move(board, player_char);
   }
}

int has_won(char player_char, char board[])
{
   if ((board[0] == player_char && board[1] == player_char && board[2] == player_char) ||
       (board[3] == player_char && board[4] == player_char && board[5] == player_char) ||
       (board[6] == player_char && board[7] == player_char && board[8] == player_char) ||
       (board[0] == player_char && board[3] == player_char && board[6] == player_char) ||
       (board[1] == player_char && board[4] == player_char && board[7] == player_char) ||
       (board[2] == player_char && board[5] == player_char && board[8] == player_char) ||
       (board[0] == player_char && board[4] == player_char && board[8] == player_char) ||
       (board[2] == player_char && board[4] == player_char && board[6] == player_char)) {
      return 1;
   } else {
      return 0;
   }
}

int is_game_over(char board[])
{
   int i;
   for (i = 0; i < 9; i++) {
      if (board[i] == ' ') {
         return 0;
      }
   }

   return 1;
}

上述代码实现了一个支持两个玩家玩家的三子棋游戏，程序会在每个人的回合询问棋子的下落位置，当一方取得胜利或者平局时，程序结束。