三子棋小游戏的实现

game.h

#ifndef __GAME_H__  
#define __GAME_H__  

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

#define ROW 3  
#define COL 3 

void InitBoard(char board[ROW][COL], int row, int col);//棋盘初始化
void DisplayBoard(char board[ROW][COL], int row, int col);//显示棋盘
void PlayerMove(char board[ROW][COL], int row, int col);//玩家走
void ComputerMove(char board[ROW][COL], int row, int col);//电脑走
char IsWin(char board[ROW][COL], int row, int col);//判断输赢



#endif //__GAME_H__  

game.c

#define _CRT_SECURE_NO_WARNINGS 1
#include "game.h"

void InitBoard(char board[ROW][COL], int row, int col)//棋盘初始化
{
	int i = 0;
	int j = 0;
	for (i = 0; i < row; i++)
	{
		for (j = 0; j < col; j++)
		{
			board[i][j] = ' ';
		}
	}
}
void DisplayBoard(char board[ROW][COL], int row, int col)//显示棋盘
{
	int i = 0;
	for (i = 0; i < row; i++)
	{
		int j = 0;
		for (j = 0; j < col; j++)
		{
			printf("%c |",board[i][j]);
		}
		printf("\n");
		for (j = 0; j < col; j++)
		{
			if (i < (row - 1))
			{
				printf("--|");
			}
		}
		printf("\n");
	}
}
void PlayerMove(char board[ROW][COL], int row, int col)//玩家走
{
	int x = 0;
	int y = 0;
	while (1)
	{
		printf("请输入坐标>\n");
		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] = 'x';
				break;
			}
			else
			{
				printf("此处已走过，请重新下棋\n");
			}
		}
		else
		{
			printf("输入有误，请重新输入\n");
		}
	}
}
void ComputerMove(char board[ROW][COL], int row, int col)//电脑走
{
	while (1)
	{
		int x = rand() % 3;
		int y = rand() % 3;
		if (board[x][y] == ' ')
		{
			board[x][y] = '0';
			break;
		}
	}
}
static int  is_full(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] == ' ')//棋盘还有空位置
			{
				return 0;
			}
		}
	}
	return 1; //棋盘已满
}
char IsWin(char board[ROW][COL], int row, int col)//判断输赢
{
	int i = 0;
	int j = 0;
	for (i = 0; i<row; i++)  
	{ 
		for (j = 0; j<col; j++)
		{
			//横向三子赢了  
			if ((board[i][j] == board[i][j + 1] && board[i][j + 1] == board[i][j + 2] && board[i][j] != ' ') ||
				(board[i][j] == board[i][j - 1] && board[i][j - 1] == board[i][j + 1] && board[i][j] != ' ') ||
				(board[i][j] == board[i][j - 1] && board[i][j - 1] == board[i][j - 2] && board[i][j] != ' '))
			{
				return board[i][j];
			}
			if ((board[i][j] == board[i + 1][j] && board[i + 1][j] == board[i + 2][j] && board[i][j] != ' ') ||
				(board[i][j] == board[i + 1][j] && board[i + 1][j] == board[i - 1][j] && board[i][j] != ' ') ||
				(board[i][j] == board[i - 1][j] && board[i - 1][j] == board[i - 2][j] && board[i][j] != ' '))
			{
				return board[i][j];
			}
			//斜向三子赢了  
			if ((board[i][j] == board[i - 1][j + 1] && board[i - 1][j + 1] == board[i + 1][j - 1] && board[i][j] != ' ') ||
				(board[i][j] == board[i - 1][j + 1] && board[i - 1][j + 1] == board[i + 1][j - 1] && board[i][j] != ' ') ||
				(board[i][j] == board[i + 1][j - 1] && board[i + 1][j - 1] == board[i + 2][j - 2] && board[i][j] != ' '))
			{
				return board[i][j];
			}
			if ((board[i][j] == board[i + 1][j + 1] && board[i + 1][j + 1] == board[i + 2][j + 2] && board[i][j] != ' ') ||
				(board[i][j] == board[i - 1][j - 1] && board[i - 1][j - 1] == board[i + 1][j + 1] && board[i][j] != ' ') ||
				(board[i][j] == board[i - 1][j - 1] && board[i - 1][j - 1] == board[i - 2][j - 2] && board[i][j] != ' '))
			{
				return board[i][j];
			}
		}
	}
	if (is_full(board, row, col))
	{
		return 'Q';            //平局  
	}
	return ' ';   //继续游戏  
}

test.c

#define _CRT_SECURE_NO_WARNINGS 1
//三子棋
/*
1.初始化棋盘
2.显示棋盘
3.玩家走
4.电脑走
5判断输赢
*/

#include "game.h" 


void menu()  //打印菜单   
{
	printf("*****************************\n");
	printf("***  欢迎进入三子棋界面  ****\n");
	printf("*****************************\n");
	printf("****  1 play     0 exit  ****\n");
	printf("*****************************\n");
}


void game()
{
	char win = 0;
	int c;
	char board[ROW][COL] = { 0 };
	InitBoard(board, ROW, COL);
	DisplayBoard(board, ROW, COL);
	printf("1 玩家先走   2 电脑先走   0 退出游戏\n");
	scanf("%d", &c);
	switch (c)
	{
	case 1:
		printf("玩家先走：\n");
		PlayerMove(board, ROW, COL);
		DisplayBoard(board, ROW, COL);
		win = IsWin(board, ROW, COL);
		if (win != ' ')
		{
			break;
		}
	case 2:
		printf("电脑先走：\n");
		ComputerMove(board, ROW, COL);
		DisplayBoard(board, ROW, COL);
		win = IsWin(board, ROW, COL);
		if (win != ' ')
		{
			break;
		}
	}
	while (1)
	{
		printf("玩家走>\n");
		PlayerMove(board, ROW, COL);
		DisplayBoard(board, ROW, COL);
		win = IsWin(board, ROW, COL);
		if (win != ' ')
		{
			break;
		}
		printf("电脑走>\n");
		ComputerMove(board, ROW, COL);
		DisplayBoard(board, ROW, COL);
		win = IsWin(board, ROW, COL);
		if (win != ' ')
		{
			break;
		}
	}
	if (win == 'x')
	{
		printf("玩家赢了\n");
	}
	else if (win == '0')
	{
		printf("电脑赢了\n");
	}
	else
	{
		printf("平局\n");
	}
}



void test()
{
	int input = 0;
	srand((unsigned int)time(NULL));
	do{
		menu();
		printf("请选择：");
		scanf("%d", &input);
		switch (input)
		{
		case 1:
			game();
			break;
		case 0:
			printf("退出游戏\n");
			break;
		default:
			printf("您的输入有误，请重新输入！\n");
		}
	} while (input);
}


int main()
{
	test();
	system("pause");
	return 0;
}