C語言----三子棋的實現

g.h

#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);//打印空格
void DisplayBoard(char board[ROW][COL], int row, int col);//打印棋盤
void playermove(char board[ROW][COL], int row, int col);//玩家落子
void computermove(char board[ROW][COL], int row, int col);//電腦落子
char IsWin(char board[ROW][COL], int row, int col);//判斷輸贏（玩家贏 *	電腦贏#	平局 P	繼續 C）

g.c

#include"G.h"
void InitBoard(char board[ROW][COL], int row, int col)//打印空格
{
	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)//打印棋盤
{
	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");
		}
	}
}
void playermove(char board[ROW][COL], int row, int col)//玩家下子
{
	int x = 0;
	int y = 0;
	printf("玩家走 ");
	while (1)
	{
		printf("請輸入你要走的座標(1,3)：> ");
		scanf("%d%d", &x, &y);
		if (x >= 1 && x <= row && y >= 1 && y <= col)
		{
			if (board[x - 1][y - 1] == ' ')
			{
				board[x - 1][y - 1] = '*';
				break;
			}
			else
			{
				printf("此座標已有棋子，請重新選擇！\n");
			}
		}
		else
		{
			printf("輸入座標錯誤，請重新輸入！\n");
		}
	}
}
void computermove(char board[ROW][COL], int row, int col)//電腦下子
{
	int x = 0;
	int y = 0;
	printf("電腦走：>\n");
	while (1)
	{
		x = rand() % row;
		y = rand() % col;
		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 < col; i++)
	{
		for (j = 0; j < col; j++)
		{
			if (board[i][j] == ' ')
			{
				return 0;//棋盤未滿
			}
		}
	}
	return 1;//棋盤滿了
}
char IsWin(char board[ROW][COL], int row, int col)
{
	int i = 0;
	for (i = 0; i < row; i++)//判斷行
	{
		if (board[i][0] == board[i][1] && board[i][1] == board[i][2] && board[i][0] != ' ')
		{
			return board[i][0];
		}
	}
	for (i = 0; i < row; i++)//判斷列
	{
		if (board[0][i] == board[1][i] && board[0][i] == board[2][i] && board[0][i] != ' ')
		{
			return board[0][i];
		}
	}
	if (board[0][0] == board[1][1] && board[0][0] == board[2][2] && board[1][1] != ' ')//對角線
	{
		return board[1][1];
	}
	if (board[0][2] == board[1][1] && board[0][2] == board[2][0] && board[1][1] != ' ')//對角線
	{
		return board[1][1];
	}
	if (IsFull(board, ROW, COL) == 1)//判斷平局
	{
		return 'P';
	}
	return 'C';//繼續
}

t.c

#include"G.h"
void menu() // 遊戲菜單
{
	printf("*********************************\n");
	printf("********   1 .進入遊戲   ********\n");
	printf("********   0 .退出遊戲   ********\n");
	printf("*********************************\n");
}
void game()//玩遊戲
{
	char board[ROW][COL] = { 0 };//初始化棋盤
	char ret = 0;
	InitBoard(board, ROW, COL);//‘ ’
	DisplayBoard(board, ROW, COL);//打印棋盤
	while (1)
	{
		playermove(board, ROW, COL);//玩家走
		DisplayBoard(board, ROW, COL);
		ret = IsWin(board, ROW, COL);
		if (ret != 'C')
		{
			break;
		}
		computermove(board, ROW, COL);//電腦走
		DisplayBoard(board, ROW, COL);
		ret = IsWin(board, ROW, COL);
		if (ret != 'C')
		{
			break;
		}
	}
	if (ret == '*')
	{
		printf("玩家贏!\n");
	}
	else if (ret == '#')
	{
		printf("電腦贏!\n");
	}
	else if (ret == 'P')
	{
		printf("平局！\n");
	}
}
void test()//遊戲菜單選擇
{
	int input = 0;
	srand((unsigned int)time(NULL));
	do {
		menu();
		printf("請選擇：");
		scanf("%d", &input);
		switch (input)
		{
		case 0:
			printf("退出遊戲！\n");
			break;
		case 1:
			printf("開始遊戲！\n");
			game();
			break;
		default:
			printf("選擇錯誤，請重新選擇！\n");
			break;
		}
	} while (input);
}
int main()
{
	test();
	return 0;
}