C语言之实现三子棋游戏 附注释

Posted 2021-06-22 王嘻嘻-

概述

三子棋棋盘为九宫格形式，玩家和电脑分别轮流落子，若有一方有三个棋连在一起的情况则胜。

实现过程

1. 玩家交互菜单创建
2. 棋盘创建与初始化
3. 玩家与电脑落子
4. 判定胜负关系

---

多文件实现 

头文件 game.h

#ifndef __GAME_H__
#define __GAME_H__

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

#define ROW 3
#define COL 3

#define INIT ' '         //宏定义 空
#define WHITE 'X'        //Player
#define BLACK 'O'        //Computer


#define DRAW 'D'
#define NEXT 'N'

#pragma warning(disable:4996)

extern void Game();

#endif

源文件 main.c

#include "game.h"

void Menu()
{
	printf("+-------------------------------+\\n");
	printf("| 1. Play              0. Exit  |\\n");
	printf("+-------------------------------+\\n");
}

int main()
{
	int select = 0;
	int quit = 0;
	while (!quit)
	{
		Menu();
		printf("Please Select# ");
		scanf("%d", &select);
		switch (select){
		case 1:
			Game();
			break;
		case 0:
			quit = 1;
			break;
		default:
			printf("Enter Error, Try Again!\\n");
			break;
		}
	}
	printf("ByeBye!\\n");
	system("pause");
	return 0;
}

源文件 game.c

#include "game.h"

static void InitBoard(char board[][COL], int row, int col)     //对九宫格棋盘进行初始化
{
	for (int i = 0; i < row; i++)
    {
		for (int j = 0; j < col; j++)  //双重循环 二维数组 矩阵
        {
			board[i][j] = INIT;             //INIT宏定义为空
		}
	}
}

static void ShowBoard(char board[][COL], int row, int col)  //函数 打印棋盘
{
	system("cls");     //调用dos命令窗口进行清屏操作，实现刷新棋盘
	printf(" ");
	for (int i = 0; i < col; i++)
    {
		printf("%4d", i+1);
	}
	printf("\\n--------------\\n");
	for (int i = 0; i < row; i++)
    {
		printf("%-2d", i+1); //2
		for (int j = 0; j < col; j++)
         {
			printf("| %c ", board[i][j]); //12
		 }
		printf("\\n--------------\\n");
	}
}

static char IsEnd(char board[][COL], int row, int col)  
{
	for (int i = 0; i < row; i++)       //判断每列是否有三子连线
    {
		if (board[i][0] == board[i][1] && \\
			board[i][1] == board[i][2] && \\
			board[i][0] != INIT)
        {
			return board[i][0];
		}
	}

	for (int j = 0; j < COL; j++)      判断每行是否有三子连线
    {
		if (board[0][j] == board[1][j] && \\
			board[1][j] == board[2][j] && \\
			board[0][j] != INIT)
        {
			return board[0][j];
		}
	}
	if (board[0][0] == board[1][1] && \\         //判断右对角线是否三子连线
		board[1][1] == board[2][2] && \\
		board[1][1] != INIT)
    {
		return board[1][1];
	}
	if (board[0][2] == board[1][1] && \\         //判断左对角线是否三子连线
		board[1][1] == board[2][0] && \\
		board[1][1] != INIT)
    {
		return board[1][1];
	}
	for (int i = 0; i < row; i++)
   {
		for (int j = 0; j < col; j++)
       {
			if (board[i][j] == INIT)             //判空
            {       
				return NEXT;
			}
		}
	}
	return DRAW;           //平局
}

static void PlayerMove(char board[][COL], int row, int col)    //玩家落子
{
	int x = 0;
	int y = 0;      //定义<x,y>坐标方式实现玩家落子
	while (1)
   {
		printf("Please Enter Position <x,y># ");
		scanf("%d %d", &x, &y);
		if (x < 1 || y < 1 || x > 3 || y > 3)    //非法判断
          {
			printf("Enter Position Error!\\n");
			continue;
		  }
		if (board[x - 1][y - 1] == INIT)    //当前位置为空方可落子 
          {
			board[x - 1][y - 1] = WHITE;     
			break;
	      }
		else
          {
			printf("Position Is Not Empty!\\n");
		  }
	}
}
static void ComputerMove(char board[][COL], int row, int col)   //电脑落子
{
	while (1){
		int x = rand() % row;     
		int y = rand() % col;      //利用随机数种子 实现电脑落子
		if (board[x][y] == INIT){
			board[x][y] = BLACK;
			break;
		}
	}
}

void Game()
{
	char board[ROW][COL];                //棋盘定义
	InitBoard(board, ROW, COL);          //棋盘初始化

	srand((unsigned long)time(NULL));     //生成随机数种子
	char result = 0;
	while (1){
		ShowBoard(board, ROW, COL);         //显示棋盘
		PlayerMove(board, ROW, COL);        //玩家落子
		result = IsEnd(board, ROW, COL);    //判断游戏状态
		if (result != NEXT){
			break;
		}
		ShowBoard(board, ROW, COL);         //显示棋盘
		ComputerMove(board, ROW, COL);      //电脑落子
		result = IsEnd(board, ROW, COL);    //判断游戏状态
		if (result != NEXT){ 
			break;
		}
	}
	ShowBoard(board, ROW, COL);
	switch (result){
	case WHITE:
		printf("You Win!\\n");
		break;
	case BLACK:
		printf("You Lose!\\n");
		break;
	case DRAW:
		printf("You == Computer!\\n");
		break;
	default:
		printf("BUG!\\n"); //Do Nothing!
		break;
	}
}

三种结果展示