三子棋源代碼

編譯環境：我用的是VS2013，更高級的版本也是可以的，

??創建三個檔案，頭檔案game.h，兩個源檔案game.c和test.c，頭檔案game.h，主要是函式的各種宣告，源檔案game.c中主要是三子棋演算法的實作，源檔案test.c中主要是main函式，函式的主體部分，

頭檔案game.h

#define ROW 3
#define COL 3

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

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);

//玩家贏 *
//電腦贏 #
//平局 Q
//繼續 C
char IsWin(char board[ROW][COL], int row, int col);

源檔案game.c
#define _CRT_SECURE_NO_WARNINGS
#include “game.h”
#include <stdio.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++)
	{
		//1.列印資料
		int j = 0;
		for (j = 0; j < col; j++)
		{
			printf(" %c ", board[i][j]); 
			if (j < col - 1)
			{
				printf("|");
			}
		}
		printf("\n");
		
		//2.列印分割行
		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("請輸入要下的坐標：>");
		scanf("%d %d", &x, &y);
		//判斷xy坐標的合法性
		if (x >= 1 && x <= row && y >= 1 && y <= col)
		{
			if (board[x - 1][y - 1] ==  ' ')
			{
				board[x - 1][y - 1] = '*';
				break;
			}
			else
			{
				printf("該坐標被占用\n");
			}

		}
		else
		{
			printf("坐標非法，請重新輸入");
		}
	}
}

void ComputerMove(char board[ROW][COL], int row, int col)
{
	int x = 0;
	int y = 0;
	printf("電腦走：>\n");
	//生成隨機橫縱坐標
	while (1)
	{
		x = rand() % row;
		y = rand() % col;
		if (board[x][y] == ' ')
		{
			board[x][y] = '#';
			break;
		}
	}
}

//回傳1 棋盤滿了
//回傳0 棋盤沒滿
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;//沒滿
			}
		}
	}
	return 1;//滿了
}

char IsWin(char board[ROW][COL], int row, int col)
{
	int i = 0;
	//橫贏
	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];
		}
	}
	//豎贏
	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];
		}
	}
	//斜著贏
	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];
	}
	//判斷是否平局
	if (1 == IsFull(board, ROW, COL))
	{
		return 'Q';
	}
	//繼續
	return 'C';
}

源檔案test.c

//測驗三子棋游戲
#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include "game.h"

void menu()
{
	printf("**************************************************\n");
	printf("***************歡迎來到三子棋游戲*******************\n");
	printf("*************** 1.play ***************************\n");
	printf("*************** 0.exit ***************************\n");
	printf("**************************************************\n");
	printf("**************************************************\n");
}

//游戲演算法實作
void game()
{
	char ret = 0;
	//陣列-存放走出的棋盤資訊
	char board[ROW][COL] = {0};
	//初始化棋盤
	InitBoard(board, ROW, COL);
	//列印棋盤
	DisplayBoard(board, ROW, COL);
	//下棋
	while (1)
	{
		//玩家下棋
		PlayerMove(board, ROW, COL);
		DisplayBoard(board, ROW, COL);
		//判斷玩家是否贏
		ret = IsWin(board, ROW, COL);
		if (ret != 'C')
		{
			break;
		}
		//電腦下棋
		ComputerMove(board, ROW, COL);
		DisplayBoard(board, ROW, COL);
		//判斷電腦是否贏
		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
	{
		printf("平局！\n");
	}
}

void test()
{
	int input = 0;
	srand((unsigned int)time(NULL));
	do
	{
		menu();
		printf("請選擇：>");
		scanf("%d", &input);
		switch (input)
		{
		case 1:
			game();
			break;
		case 0:
			printf("退出游戲\n");
			break;
		default:
			printf("輸入有誤，請重新輸入！\n");
			break;
		}
	} while (input);
}

int main()
{
	test();
	return 0;
}