【C语言小实战】三子棋人机对战小程序

三子棋小程序简单思路

主函数的构建 text.c

#define _CRT_SECURE_NO_WARNINGS
#include "game.h"
void menu()
{
	printf("**************\n");
	printf("****1.play****\n");
	printf("****0.exit****\n"); 
	printf("**************\n");
}
void game()
{
	char ret = 0;
	char board[ROW][COL] = { 0 };
	InitBoard(board, ROW, COL);
	DisplayBoard(board, ROW, COL);
	while (1)
	{

		PlayerMove(board, ROW, COL);
		CheckWin(board, ROW, COL);
		ret = CheckWin(board, ROW, COL);
        /*DisplayBoard(board, ROW, COL);*/
		if (ret != ' ')
		{
			break;
		}
		srand((unsigned int)time(NULL));
        ComputerMove(board, ROW, COL);
		CheckWin(board, ROW, COL);
		int ret = CheckWin(board, ROW, COL);
		DisplayBoard(board, ROW, COL);
		if (ret != ' ')
		{
			break;
		}
	}
	if (ret == '*')
	{
		printf("玩家赢\n");
	}
	if (ret == '#')
	{
		printf("电脑赢\n");
	}
	if (ret == 'q')
	{
		printf("是平局\n");
	}
}
int main()
{
	int input = 0;
	do
	{
		menu();
		printf("请选择:>");
		scanf("%d", &input);
		switch (input)
		{
		case 1:
			game();
			printf("\n");
			break;
		case 0:
			printf("退出游戏\n");
			break;
		default:
			printf("输入错误重新输入\n");
			break;
		}
	} while (input);
	return 0;
}

首先主函数内让玩家选择游戏或者退出，用do while（input）
input为真时循环，直到玩家选择0退出
其中封装了一个menu（）函数和一个game（）函数

game.c函数封装

• 初始化函数

void InitBoard(char board[ROW][COL], int row, int col)
{
	int i = 0;
	int j = 0;
	for (i = 0; i <= row - 1; i++)
	{
		for (j = 0; j <= col - 1; j++)
		{
			board[i][j] = ' ';
		}
	}
}

• 打印棋盘

void DisplayBoard(char board[ROW][COL],int row,int col)
{
	int i = 0;
	int j = 0;
	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");
	}
}

• 玩家移动

void PlayerMove(char board[ROW][COL], int row, int col)
{
	int x = 0;
	int y = 0;
	printf("玩家走:>");
	while (1)
   {
	scanf("%d%d", &x, &y);
	
		if (x > 0 && x <= row&&y > 0 && y <= col)
		{
			if (board[x-1][y-1] == ' ')
			{
				board[x-1][y-1] = '*';
				break;
			}
			else
			{
				printf("坐标被占用，请重新输入:>");
					continue;
			}
		}
		else
		{
			printf("坐标不合法，请重新输入:>\n");
		}
	}
}

• 电脑移动

void ComputerMove(char board[ROW][COL], int row, int col)
{
	printf("电脑走\n");
	int x = 0;
	int y = 0;
	while (1)
	{
		x = rand() % row;
		y = rand() % col;
		if (board[x][y] == ' ')
		{
			board[x][y] = '#';
			break;
		}
	}
}

• 判断胜利

char CheckWin(char board[ROW][COL], int row, int col)
{
	int i = 0;
	int j = 0;
	for (i = 0; i < row; i++)
	{
		for (j = 0; j < col; j++)
		{
			if (board[i][j - 1] == board[i][j] && board[i][j] == board[i][j + 1] && board[i][j] != ' ')
			{
				return board[i][j];
			}
			if (board[i - 1][j] == board[i][j] && board[i][j] == board[i + 1][j] && board[i][j] != ' ')
			{
				return board[i][j];
			}
			if (board[i - 1][j-1] == board[i][j] && board[i][j] == board[i + 1][j+1] && board[i][j] != ' ')
			{
				return board[i][j];
			}
			if (board[i - 1][j + 1] == board[i][j] && board[i][j] == board[i + 1][j - 1] && board[i][j] != ' ')
			{
				return board[i][j];
			}
		}
		if (IsFull(board, ROW, COL))
		{
			return 'q';
		}
	}
	return ' ';
}

其中用到了IsFull（）函数判断是否平局（判断条件是是否棋盘已满）

• 判断平局函数

int IsFull(char board[ROW][COL], int row, int col)
{
	int i = 0;
	int j = 0;
	for (i = 0; i < row; i++)
	{
		for (j = 0; j < col; j++)
		{
			if (board[i][j] == ' ')
				return 0;
		}
	}
	return 1;
}

game.h头文件

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<time.h>
#define ROW 3
#define COL 3
void InitBoard(char board[ROW][COL], int row, int col);
void DisplayBoard(char board[ROW][COL], int row, int col);
void PlayerMove(char board[ROW][COL], int row, int col);
void ComputerMove(char board[ROW][COL], int row, int col);
char CheckWin(char board[ROW][COL], int row, int col); 
int IsFull(char board[ROW][COL], int row, int col);

代码实现

转载：https://blog.csdn.net/yiqqYi/article/details/102488497