【C语言】三子棋游戏

今天，我们用C语言来写一个三子棋游戏。在整个工程里创建了三个文件，分别为main.c、game.c、game.h，其中：main.c：用于放整个游戏的框架；game.c与game.h组成玩游戏的模块。
代码如下：

1. game.h

	#define _CRT_SECURE_NO_WARNINGS 1
	#include <stdio.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);
	
	//玩家赢-'*'
	//电脑赢-'#'
	//平局-'Q'
	//继续-'C'
	char CheckWin(char board[ROW][COL], int row, int col);

2. 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++)
		{
			//printf(" %c | %c | %c \n", board[i][0], board[i][1], board[i][2]);
			int j = 0;
			for (j = 0; j < col; j++)
			{
				printf(" %c ", board[i][j]);
				if (j < col - 1)
					printf("|");
			}
			printf("\n");
			if (i < row - 1)
			{
				//printf("---|---|---\n");
				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("请输入要下棋的坐标：");
			scanf("%d%d", &x, &y);
			if ((x >= 1) && (x <= row) && (y >= 1) && (y <= col))
			{
				if (board[x - 1][y - 1] != ' ')
				{
					printf("坐标被占用，请重新输入！\n");
				}
				else
				{
					board[x - 1][y - 1] = '*';
					break;
				}
			}
			else
			{
				printf("坐标有误，请重新输入！\n");
			}
		}
	}
	void ComputerMove(char board[ROW][COL], int row, int col)
	{
		int x = 0;
		int y = 0;
		printf("电脑走：\n");
		while (1)
		{
			x = rand() % row;
			y = rand() % col;
			if (board[x][y] == ' ')
			{
				board[x][y] = '#';
				break;
			}
		}
	}
	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;    //满了
	}
	char CheckWin(char board[ROW][COL], int row, int col)
	{
		int i = 0;
		for (i = 0; i < row; i++)
		{
			if (board[i][0] == board[i][1] && board[i][1] == board[i][2] && board[i][1] != ' ')
			{
				return board[i][1];
			}
		}
		for (i = 0; i < col; i++)
		{
			if (board[0][i] == board[1][i] && board[1][i] == board[2][i] && board[1][i] != ' ')
			{
				return board[1][i];
			}
		}
		if (board[0][0] == board[1][1] && board[1][1] == board[2][2] && board[1][1] != ' ')
			return board[1][1];
		if (board[0][2] == board[1][1] && board[1][1] == board[2][0] && board[1][1] != ' ')
			return board[1][1];
		//平局-判断棋盘是否满了
		if (IsFull(board, row, col) == 1)
		{
			return 'Q';
		}
		//继续
		return 'C';
	}

3. main.c

	#define _CRT_SECURE_NO_WARNINGS 1
	#include "game.h"     //包含自己定义的头文件，用双引号
	void menu()
	{
		printf("************************************************\n");
		printf("*************      1. play        **************\n");
		printf("*************      0. exit        **************\n");
		printf("************************************************\n");
	}
	
	void game()
	{
		char board[ROW][COL] = { 0 };
		char ret = 0;
		InitBoard(board, ROW, COL);
		DisplayBoard(board, ROW, COL);
		while (1)
		{
			PlayerMove(board, ROW, COL);
			DisplayBoard(board, ROW, COL);
			ret = CheckWin(board, ROW, COL);
			if (ret != 'C')
				break;
			ComputerMove(board, ROW, COL);
			DisplayBoard(board, ROW, COL);
			ret = CheckWin(board, ROW, COL);
			if (ret != 'C')
				break;
		}
		if (ret == '*')
		{
			printf("玩家赢\n");
		}
		else if (ret == '#')
		{
			printf("电脑赢\n");
		}
		else if (ret == 'Q')
		{
			printf("平局\n");
		}
	}
	int main()
	{
		int input;
		srand((unsigned int)time(NULL));
		do
		{
			menu();
			printf("请选择：");
			scanf("%d", &input);
			switch (input)
			{
			case 1:
				game();    //玩游戏
				break;
			case 0:
				printf("退出游戏\n");
				break;
			default:
				printf("选择错误，请重新选择！\n");
				break;
			}
		} while (input);
		return 0;
	}