三子棋小游戏c语言实现

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

#define max_row 3
#define max_col 3
//初始化
void init(char board[max_row][max_col]) {
   for (int row = 0; row < max_row; row++) {
       for (int col = 0; col < max_col; col++) {
           board[row][col] = ' ';
       }
   }
   //设置随机种子
   srand((unsigned int)time(0));
}
//打印棋盘
void printBoard(char board[max_row][max_col]) {
   system("cls");
   for (int row = 0; row < max_row; row++) {
       printf("+---+---+---+\n");
       for (int col = 0; col < max_col; col++) {
           printf("| %c ", board[row][col]);
       }
       printf("|");
       printf("\n");
   }
   printf("+---+---+---+\n");
}
//玩家移动
void playerMove(char board[max_row][max_col]) {
   printf("请玩家落子\n");
   while (1) {
       printf("请输入落子的位置(row,col)");
       int row = 0, col = 0;
       scanf("%d %d", &row, &col);
       if (row < 0 || row >= max_row || col < 0 || col >= max_col) {
           printf("输入有误，请重新输入\n");
           continue;
       }
       if (board[row][col] != ' ') {
           printf("当前位置已经有子了，无法落子\n");
           continue;
       }
       board[row][col] = 'x';
       break;
   }
}

void computerMove(char board[max_row][max_col]) {
   //轮到电脑落子
   while (1) {
       if (isFull(board)) {
           break;
       }
       int row = rand() % max_row;
       int col = rand() % max_col;
       if (board[row][col] != ' ') {
           //说明位置已经有子了
           continue;
       }
       board[row][col] = 'o';
       printBoard(board);
       break;
   }
}

int isFull(char board[max_row][max_col]) {
   //棋盘里面有空格就是没满，没空格就是满了
   for (int row = 0; row < max_row; row++) {
       for (int col = 0; col < max_col; col++) {
           if (board[row][col] == ' ') {
               return 0;
           }
       }
   }
   return 1;
}
char checkWinner(char board[max_row][max_col]) {
   //1.检测所有行
   for (int row = 0; row < max_row; row++) {
       if (board[row][0] != ' ' && board[row][0] == board[row][1] && board[row][1] == board[row][2]) {
           return board[row][0];
       }
   }
   //2.检查所有列
   for (int col = 0; col < max_col; col++) {
       if (board[0][col] != ' ' && board[0][col] == board[1][col] && board[1][col] == board[2][col]) {
           return board[0][col];
       }
   }
   //3.检查所有对角线
   if (board[0][0] != ' ' && board[0][0] == board[1][1]
       && board[0][0] == board[2][2]
       ) {
       return board[0][0];
   }
   if (board[2][0] != ' ' && board[2][0] == board[1][1]
       && board[2][0] == board[0][2]
       ) {
       return board[2][0];
   }
   //4.检查是否和棋
   if (isFull(board)) {
       return 'q';
   }
   return ' ';
}
int main() {
   //1.初始化棋盘
   char board[max_row][max_col] = { 0 };
   init(board);
   char winner = ' ';
   // 2.打印棋盘
   printBoard(board);
   while (1) {
       //玩家落子
       playerMove(board);
       //电脑落子
       computerMove(board);
       //判定胜负玩家胜返回x，电脑胜返回'o'，和棋返回'q',胜负未分返回' '
       winner = checkWinner(board);
       if (winner == 'x') {
           printf("玩家获胜");
       }
       if (winner == 'o') {
           printf("电脑获胜");
       }
       if (winner == 'q') {
           printf("和棋");
       }
       if (winner != ' ') {
           //胜负已分结束游戏
           break;
       }
   }

   return 0;
}