井字棋游戏

test.c

#define _CRT_SECURE_NO_WARNINGS

#include "game.h"
//开始菜单
void start()
{
    printf("****************************\n");
    printf("**** 1. play     0.exit ****\n");
    printf("****************************\n");
    printf("请选择：\n");
}
//游戏实现函数
void game()
{
    char ret;
    //利用二维数组创建棋盘
    char board[ROW][COL] = { 0 };
    //初始化棋盘，使棋盘刚开始的值为空格
    InitBoard(board,ROW,COL);
    //调用打印数组函数，display--显示
    DisplayBoard(board,ROW,COL);
    //开始下棋
    while (1)
    {
        //玩家下棋
        PlayerMove(board, ROW, COL);
        DisplayBoard(board, ROW, COL);
        //判断游戏状态
        ret =IsWin(board,ROW,COL);
        if (ret != 'C')
        {
            break;
        }
        //电脑下棋
        ComputerMove(board, ROW, COL);
        DisplayBoard(board, ROW, COL);
        //判断游戏状态
        ret =IsWin(board,ROW,COL);
        if (ret != 'C')
        {
            break;
        }
    }
    if (ret == '*')
    {
        printf("恭喜你赢了\n");
    }
    else if (ret == '#')
    {
        printf("很抱歉电脑赢了\n");
    }
    else
    {
        printf("旗鼓相当！\n");
    }
}
int main()
{
    int input = 0;//定义开始开关
    srand((unsigned int)time(NULL));
    do
    {
        start();//调用开始菜单
        scanf("%d",&input);
        switch (input)
        {
        case 1:
            //printf("开始游戏\n");
            game();//调用游戏
            break;
        case 0:
            printf("退出游戏\n");
            break;
        default:
            printf("请选择正确的选项\n");
            break;
        }

    } while (input);
    return 0;
}

game.h

//定义常量
#define ROW 3
#define COL 3
//引入外部文件
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
//申明初始化函数
void InitBoard(char board[ROW][COL],int row,int col);
//申明打印数组函数
void DisplayBoard(char board[ROW][COL], int row, int col);
//申明玩家下棋函数
void PlayerMove(char board[ROW][COL],int row,int col);
//申明电脑下棋函数
void ComputerMove(char board[ROW][COL],int row ,int col);
//申明游戏状态函数
char IsWin(char board[ROW][COL],int row,int col);

game.c

#define _CRT_SECURE_NO_WARNINGS

#include "game.h"

//初始化棋盘
void InitBoard(char board[ROW][COL], int row, int col)
{
    int i, j;
    for (i = 0; i < row; i++)
    {
        for (j = 0; j < col; j++)
        {
            board[i][j] = ' ';
        }
    }
}
//打印棋盘
void DisplayBoard(char board[ROW][COL], int row, int col)
{
    int i,j;
    for (i = 0; i < row;i++)
    {
        for (j = 0; j < col; j++)
        {
            printf(" %c ",board[i][j]);
            if (j < col - 1)
                printf("|");
        }
        printf("\n");
        if (i < row - 1)
        {
            for (j = 0; j < col; j++)
            {
                printf("---");
                if (j < col - 1)
                {
                    printf("|");
                }
            }
        }
        printf("\n");
    }
}

//玩家下棋,棋子为*
void PlayerMove(char board[ROW][COL], int row, int col)
{
    int x,y;
    do
    {
        printf("请输入需要下棋的坐标：\n");
        scanf("%d%d", &x, &y);
        if ((x >= 1 && x <= 3 )&& (y >= 1 && y <= 3))
        {
            if (board[x - 1][y - 1] == ' ')
            {
                board[x - 1][y - 1] = '*';
                break;
            }
            else
            {
                printf("您输入的位子已被占用，请从新输入\n");
            }
        }
        else
        {
            printf("您输入的位子不合法，请从新输入\n");
        }
    } while(1);
}

//电脑下棋
void ComputerMove(char board[ROW][COL], int row, int col)
{
    int x, y;

    printf("电脑走->\n");
    while (1)
    {
        x = rand() % row;
        y = rand() % col;
        if (board[x][y] == ' ')
        {
            board[x][y] = '#';
            break;
        }
    }
}

//判断游戏状态，'*'表示玩家赢,'#'表示电脑赢,'P'表示平局,'C'表示继续游戏
char IsWin(char board[ROW][COL], int row, int col)
{
    int i, j;
    //横三行
    for (i = 0; i < row;i++)
    {
        if (board[i][0] == board[i][1] && board[i][1] == board[i][2] && board[i][1] != ' ')
            return board[i][1];
    }
    //竖三列
    for (i = 0; i < col; i++)
    {
        if (board[0][i] == board[1][i] && board[1][i] == board[2][i] && board[1][i] != ' ')
            return board[1][i];
    }
    //两条对角线
    if (board[0][0] == board[1][1] && board[1][1] == board[2][2] && board[1][1] != ' ')
        return board[1][1];
    if (board[0][2] == board[1][1] && board[1][1] == board[2][0] && board[1][1] != ' ')
        return board[1][1];
    //继续游戏
    for (i = 0; i < row; i++)
    {
        for (j = 0; j < col;j++)
        {
            if (board[i][j] == ' ')
                return 'C';
        }
    }
    //平局状态
    return 'P';
}