三子棋小游戏

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

#define ROW 3
#define COL 3

char g_broad[ROW][COL];

void Init(char broad[ROW][COL])
{
    for (int row = 0;row < ROW;++row)
    {
        for (int col = 0;col < COL;++col)
        {
            broad[row][col] = ' ';
        }
    }
}

void Print(char broad[ROW][COL])
{
    for(int row=0;row<ROW;++row)
    {
        printf("| %c | %c | %c |\n",broad[row][0],broad[row][1],broad[row][2]);
        if (row != ROW - 1)
        {
            printf(" ---|---|---\n");
        }
    }
}

void Playermove(char broad[ROW][COL])
{
    printf("玩家下棋!\n");
    while(1)
    { 
        int row = 0;
        int col = 0;
        printf("请输入一组坐标：\n");
        scanf("%d %d", &row, &col);
        if (row < 0 || row >= ROW || col < 0 || col >= COL)
        {
            printf("您输入的坐标非法!请重新输入：\n");
            continue;
        }
        if (broad[row][col] != ' ')
        {
            printf("该位置已经有棋子，请重新输入：\n");
                continue;
        }
        broad[row][col] = 'x';
        break;
    }
}

void Computermove(char broad[ROW][COL])
{
    printf("电脑下棋！\n");
    while (1)
    {
        int row = rand() % ROW;
        int col = rand() % COL;
        if (broad[row][col] != ' ')
        {
            //位置被占用，重新生成
            continue;
        }
        broad[row][col] = 'o';
        break;
    }

}

int Isfull(char broad[ROW][COL])
{
    for (int row = 0;row < ROW;++row)
    {
        for (int col = 0;col < COL;++col)
        {
            if (broad[row][col] == ' ')
            {
                return 0;
            }
        }
    }
    return 1;
}

char Checkgame(char broad[ROW][COL])
{
    //先检查所有的行
    for (int row = 0;row < ROW;++row)
    {
        if (broad[row][0] == broad[row][1]
            && broad[row][0] == broad[row][2]
            && broad[row][0] != ' ')
        {
            return broad[row][0];
        }
    }
    //检查所有列
    for (int col = 0;col < COL;++col)
    {
        if (broad[0][col] == broad[1][col]
            && broad[0][col] == broad[2][col]
            && broad != ' ')
        {
            return broad[0][col];
        }
    }
    //检查对角线
    if (broad[0][0] == broad[1][1]
        && broad[0][0] == broad[2][2]
        && broad[0][0] != ' ')
    {
        return broad[0][0];
    }
    if (broad[2][0] == broad[1][1]
        && broad[2][0] == broad[0][2]
        && broad[2][0] != ' ')
    {
        return broad[2][0];
    }
    //判定是否和棋
    if (Isfull(broad))
    {
        return 'q';
    }
    return ' ';
}

void Game()
{
    //1.先对棋盘进行初始化
    Init(g_broad);
    char winner = ' ';
    while (1)
    {
        //2.打印棋盘（此时是一个空的棋盘）
        Print(g_broad);
        //3.玩家下棋，检查游戏是否结束
        Playermove(g_broad);
        //winner==x   玩家胜利；o电脑胜利；q和棋 ；' '胜负未分
        winner = Checkgame(g_broad);
        if (winner != ' ')
        {
            break;
        }
        //4.电脑下棋，检查游戏是否结束
        Computermove(g_broad);
        winner = Checkgame(g_broad);
        if (winner != ' ')
        {
            break;
        }
        //循环第2步。

    }
    //在游戏结束之前打印地图
    Print(g_broad);
    if (winner == 'x')
    {
        printf("玩家胜利！\n");
    }
    else if (winner == 'o')
    {
        printf("电脑胜利！\n");
    }
    else if (winner == 'q')
    {
        printf("和棋！\n");
    }
    else
    {
        printf("程序出错！\n");
    }

}

int Menu()
{
    printf("==============\n");
    printf("1.开始游戏\n");
    printf("0.结束游戏\n");
    printf("==============\n");
    printf("请输入您的选择：\n");
    int choice = 0;
    scanf("%d",&choice);
    return choice;
}

int main()
{
    //这里设置随机种子
    srand((unsigned int)time(0));
    while (1)
    {
        int choice = Menu();
        if (choice == 1)
        {
            Game();
        }
        else
        {
            printf("Goodbye！\n");
            break;
        }
    }
    return 0;
}