三子棋游戏

三子棋游戏
思路分析
①初始化棋盘initboard
首先棋盘是一个3*3的棋盘，我们可以利用二维数组board[3][3]来表示；
函数初始化棋盘，使棋盘为空；
函数打印棋盘 displayboard
②游戏环节 game()
编写两个函数
玩家落子 playermove；
电脑落子 computermove；
③判断输赢 checkwin()
分为三种情况:
玩家赢；
电脑赢；
平局；

以下为具体程序:
头文件+函数声明
game.h

#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
#include <stdlib.h>
#include<time.h>

#define ROW 3
#define COL 3

//声明函数
void InitBoard(char board[ROW][COL], int row, int col);//初始化棋盘
void DisPlayBoard(char board[ROW][COL], int row, int col);//打印棋盘
void PlayerMove(char board[ROW][COL], int row, int col);//玩家下棋
void ComputerMove(char board[ROW][COL], int row, int col);//电脑下棋
char CheckWin(char board[ROW][COL], int row, int col);//检测游戏输赢

函数部分
game.c

#define _CRT_SECURE_NO_WARNINGS 1
#include "game.h"
void InitBoard(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++)
		{
			board[i][j] = ' ';
		}
	}
}
void DisplayBoard(char board[ROW][COL], int row, int col)
{
	int i = 0;
	for (i = 0; i < row; i++)
	{
		//打印数据
		int j = 0;
		for (j = 0; j < col; j++)
		{
			printf(" %c ", board[i][j]);
			if (j<col - 1)
				printf("|");
		}
		printf("\n");
		//打印分割行
		if (i < row - 1)
		{
			for (j = 0; j < col; j++)
			{
				printf("---");
				if (j<col - 1)
					printf("|");
			}
		}
		printf("\n");
	}
}
void PlayerMove(char board[ROW][COL], int row, int col)
{
	int x = 0;
	int y = 0;
	printf("玩家走:>\n");

	while (1)
	{
		printf("请输入坐标:>");
		scanf("%d%d", &x, &y);
		//如果坐标范围合法
		if (x >= 1 && x <= row && y >= 1 && y <= col)
		{
			if (board[x - 1][y - 1] == ' ')
			{
				board[x - 1][y - 1] = '*';
				break;
			}
			else
			{
				printf("该坐标被占用，请重新输入\n");
			}
		}
		else
		{
			printf("坐标非法，请重输入\n");
		}
	}
}
void ComputerMove(char board[ROW][COL], int row, int col)
{
	printf("电脑走:>\n");

	while (1)
	{
		int x = rand() % row;//0-2
		int y = rand() % col;//0-2
		if (board[x][y] == ' ')
		{
			board[x][y] = '#';
			break;
		}
	}
}


static 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;//没空格
}
char CheckWin(char board[ROW][COL], int row, int col)
{
	int i = 0;
	//行是否有3个相等
	for (i = 0; i < row; i++)
	{
		if (board[i][0] == board[i][1] && board[i][1] == board[i][2] && board[i][0] != ' ')
		{
			return board[i][0];
		}
	}
	//列的判断
	for (i = 0; i < col; i++)
	{
		if (board[0][i] == board[1][i] && board[1][i] == board[2][i] && board[0][i] != ' ')
		{
			return board[0][i];
		}
		}
	//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[2][0] == board[1][1] && board[1][1] == board[0][2] && board[1][1] != ' ')
	{
		return board[1][1];
	}

	//判断是否为平局
	//判断棋盘是否满了
	if (IsFull(board, row, col) == 1)
	{
		return 'Q';
	}
	//不是平局，游戏继续
	return 'C';
}

主函数
text.c

#define _CRT_SECURE_NO_WARNINGS 1
#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 };//数组应该初始化为空格
	InitBoard(board, ROW, COL);//初始化棋盘 - 空格
	//打印棋盘
	DisplayBoard(board, ROW, COL);
	while (1)
	{
		PlayerMove(board, ROW, COL);
		//判断输赢
		ret = CheckWin(board, ROW, COL);
		if (ret != 'C')
		{
			break;
		}
		DisplayBoard(board, ROW, COL);

		ComputerMove(board, ROW, COL);
		//判断输赢
		ret = CheckWin(board, ROW, COL);
		if (ret != 'C')
		{
			break;
		}
		DisplayBoard(board, ROW, COL);
	}
	
	if (ret == '*')
	{
		printf("玩家赢\n");
	}
	else if (ret == '#')
	{
		printf("电脑赢\n");
	}
	else if (ret == 'Q')
	{
		printf("平局\n");
	}
	DisplayBoard(board, ROW, COL);
}
int main()
{
	int input = 0;
	srand((unsigned int)time(NULL));
	do
	{
		menu();
		printf("请选择:>");
		scanf("%d", &input);
		switch (input)
		{
		case 1:
			game();//三子棋游戏
			break;
		case 0:
			printf("退出游戏\n");
			break;
		default:
			printf("选择错误\n");
			break;
		}
		
	} while (input);
	return 0;
}