c语言实现三子棋小游戏

思路和实现步骤：

• 打印游戏选择界面
  玩家输入1开始游戏，输入0结束游戏
• 初始化棋盘和打印棋盘
  在屏幕上打印一个3*3的棋盘，棋盘的每一小格初始化为空格；为了让这个游戏更有趣一点，棋盘部分可以扩展成为5*5，还可以扩展成任意大小的棋盘。
• 玩家选择谁先走
• 实现玩家走和电脑走
  玩家通过输入坐标把棋下在棋盘里，电脑是由系统生成随机数组成坐标下棋。
• 判断输赢
  判断棋盘满了，是平局；如果没有，判断输赢。
• 输出结果并打印结束时的棋盘

1.打印游戏菜单

void menu()
{
printf("***********************\n");
printf("****1.paly   0.exit****\n");
printf("***********************\n");
}

void InitBoard(char board[ROW][COL], int row, int col)
{
int i = 0;
int j = 0;
memset(board,' ', row*col*sizeof(board[0][0]));
}
void DisplayBoard(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++)
{
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");
}

}

3.玩家选择谁先走

int input = 0;
printf("1.电脑先走 2.玩家先走\n");
printf("请选择谁先走:>");
scanf("%d", &input);
InitBoard(board, ROW, COL);
DisplayBoard(board, ROW, COL);
switch (input)
{
case 1:
while (1)
{
ComeputerMove(board, ROW, COL);
//Sleep(1000);
ret = IsWin(board, ROW, COL);
if (ret != ' ')
{
break;
}
DisplayBoard(board, ROW, COL);
PlayerMove(board, ROW, COL);
ret = IsWin(board, ROW, COL);
if (ret != ' ')
{
break;
}
DisplayBoard(board, ROW, COL);
}

break;
case 2:

while (1)
{
PlayerMove(board, ROW, COL);
//Sleep(1000);
ret = IsWin(board, ROW, COL);
if (ret != ' ')
{
break;
}
DisplayBoard(board, ROW, COL);
ComeputerMove(board, ROW, COL);
ret = IsWin(board, ROW, COL);
if (ret != ' ')
{
break;
}
DisplayBoard(board, ROW, COL);
}

break;
default:
break;
}

判断谁先走并不是难点，所以我用了switch语句，放在game函数里一起实现，没有单独分装一个函数。

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);
if (x > 0 && x<=row && y>0 && y <= col)
{
if (board[x-1][y-1] == ' ')
{
board[x-1][y-1] = 'x';
break;
}
else
{
printf("该坐标已经被占用\n");
}
}
else
{
printf("坐标非法\n");
}
}
}

电脑走

void ComeputerMove(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] = '0';
break;
}
}
}

5.判断输赢

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;
}
char IsWin(char board[ROW][COL], int row, int col)
{
int i = 0;
int j = 0;
for (i = 0; i < row; i++)
{
for (j = 1; j < col - 1; j++)
{
if ((board[i][j - 1] == board[i][j]) && (board[i][j] == board[i][j + 1]) && board[i][j] != ' ')
{
return board[i][j];
}
}
}
for (j = 0; j < col; j++)
{
for (i = 1; i < row-1; i++)
{
if ((board[i-1][j] == board[i + 1][j]) && (board[i][j] == board[i + 1][j]) &&board[i][j] != ' ')
{
return board[i][j];
}
}

}
for (i = 1; i < row-1; i++)
{
for (j = 1; j < col-1; j++)
{
if ((board[i - 1][i - 1] == board[i][i]) && (board[i][i] == board[i + 1][i + 1]) && board[i][j] != ' ')
{
return board[i][j];

}
}
}
for (i = row-1; i >0;i--)
{
for (j = 1; j < col - 1; j++)
{
if ((board[i + 1][j - 1] == board[i][j]) && (board[i][j] == board[i - 1][j + 1]) && board[i][j] != ' ')
{
return board[i][j];
}
}
}
//判断平局
if (IsFull(board, row, col))
{
return 'p';
}
//游戏继续
return ' ';
}

这个判断输赢的函数是三子棋的规则，不管棋盘是多大的，都是三子棋的玩法。
下面写一个棋盘是几乘几，就是几子棋。

char IsWin(char board[ROW][COL], int row, int col)
{
int i = 0;
int j = 0;
int tmp = 0;
//判断输赢
for (i = 0; i < row; i++)
{
tmp = 0;
for (j = 0; j < col - 1; j++)
{
if ((board[i][j] == board[i][j + 1]) && board[i][j] != ' ')
{
;
}
else
{
tmp = 1;
break;
}
}
if (tmp == 0)
{
return board[i][j];
}
}
for (j = 0; j < col; j++)

{
tmp = 0;
for (i = 0; i < row - 1; i++)
{
if ((board[i][j] == board[i + 1][j]) && board[i][j] != ' ')
{
;
}
else
{
tmp = 1;
break;
}
}
if (tmp == 0)
{
return board[i][j];
}
}

for (i = 0, j = 0; i < row - 1, j < col - 1; i++, j++)
{
tmp = 0;
if ((tmp == 0) && (board[i][j] == board[i + 1][j + 1]) && board[i][j] != ' ')
{
;
}
else
{
tmp = 1;
break;
}
}
if (tmp == 0)
{
return board[i][j];
}

for (i = row, j = 0; i > 0, j < col - 1; i--, j++)
{
tmp = 0;
if ((tmp == 0) && (board[i][j] == board[i - 1][j + 1]) && board[i][j] != ' ')
{
;
}
else
{
tmp = 1;
break;
}
}
if (tmp == 0)
{
return board[i][j];
}//判断平局
if (IsFull(board, row, col))
{
return 'p';
}
//游戏继续
return ' ';
}

ret = IsWin(board, ROW, COL);
if (ret == ' ')
{
printf("平局\n");
DisplayBoard(board, ROW, COL);
}
else if (ret == 'x')
{
printf("玩家赢!!!\n");
DisplayBoard(board, ROW, COL);
}
else if (ret == '0')
{
printf("电脑赢!!!\n");
DisplayBoard(board, ROW, COL);
}

附完整代码

1.game.h

#ifndef _GAME_H__
#define _GAME_H__

#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
#include <stdlib.h>
#include <windows.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 ComeputerMove(char board[ROW][COL], int row, int col);
void PlayerMove(char board[ROW][COL], int row, int col);
char IsWin(char board[ROW][COL], int row, int col);
#endif //_GAME_H__

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;
memset(board,' ', row*col*sizeof(board[0][0]));
}
void DisplayBoard(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++)
{
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 ComeputerMove(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] = '0';
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;
}
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);
if (x > 0 && x<=row && y>0 && y <= col)
{
if (board[x-1][y-1] == ' ')
{
board[x-1][y-1] = 'x';
break;
}
else
{
printf("该坐标已经被占用\n");
}
}
else
{
printf("坐标非法\n");
}
}
}

char IsWin(char board[ROW][COL], int row, int col)
{
int i = 0;
int j = 0;

//几子棋
//int tmp = 0;
//判断输赢
/*for (i = 0; i < row; i++)
{
tmp = 0;
for (j = 0; j < col - 1; j++)
{
if ((board[i][j] == board[i][j + 1]) && board[i][j] != ' ')
{
;
}
else
{
tmp = 1;
break;
}
}
if (tmp == 0)
{
return board[i][j];
}
}
for (j = 0; j < col; j++)

{
tmp = 0;
for (i = 0; i < row - 1; i++)
{
if ((board[i][j] == board[i + 1][j]) && board[i][j] != ' ')
{
;
}
else
{
tmp = 1;
break;
}
}
if (tmp == 0)
{
return board[i][j];
}
}

for (i = 0, j = 0; i < row - 1, j < col - 1; i++, j++)
{
tmp = 0;
if ((tmp == 0) && (board[i][j] == board[i + 1][j + 1]) && board[i][j] != ' ')
{
;
}
else
{
tmp = 1;
break;
}
}
if (tmp == 0)
{
return board[i][j];
}

for (i = row, j = 0; i > 0, j < col - 1; i--, j++)
{
tmp = 0;
if ((tmp == 0) && (board[i][j] == board[i - 1][j + 1]) && board[i][j] != ' ')
{
;
}
else
{
tmp = 1;
break;
}
}
if (tmp == 0)
{
return board[i][j];
}

*/
//三子棋
for (i = 0; i < row; i++)
{
for (j = 1; j < col - 1; j++)
{
if ((board[i][j - 1] == board[i][j]) && (board[i][j] == board[i][j + 1]) && board[i][j] != ' ')
{
return board[i][j];
}
}
}
for (j = 0; j < col; j++)
{
for (i = 1; i < row - 1; i++)
{
if ((board[i - 1][j] == board[i + 1][j]) && (board[i][j] == board[i + 1][j]) && board[i][j] != ' ')
{
return board[i][j];
}
}

}
for (i = 1; i < row - 1; i++)
{
for (j = 1; j < col - 1; j++)
{
if ((board[i - 1][i - 1] == board[i][i]) && (board[i][i] == board[i + 1][i + 1]) && board[i][j] != ' ')
{
return board[i][j];

}
}
}
for (i = row - 1; i >0; i--)
{
for (j = 1; j < col - 1; j++)
{
if ((board[i + 1][j - 1] == board[i][j]) && (board[i][j] == board[i - 1][j + 1]) && board[i][j] != ' ')
{
return board[i][j];
}
}
}
//判断平局
if (IsFull(board, row, col))
{
return 'p';
}
//游戏继续
return ' ';
}

3.test.c 

#define _CRT_SECURE_NO_WARNINGS 1

#include "game.h"
void game()
{
char board[ROW][COL] = {0};
char ret = '0';
int input = 0;
printf("1.电脑先走 2.玩家先走\n");
printf("请选择谁先走:>");
scanf("%d", &input);
InitBoard(board, ROW, COL);
DisplayBoard(board, ROW, COL);
switch (input)
{
case 1:
while (1)
{
ComeputerMove(board, ROW, COL);
//Sleep(1000);
ret = IsWin(board, ROW, COL);
if (ret != ' ')
{
break;
}
DisplayBoard(board, ROW, COL);
PlayerMove(board, ROW, COL);
ret = IsWin(board, ROW, COL);
if (ret != ' ')
{
break;
}
DisplayBoard(board, ROW, COL);
}

break;
case 2:

while (1)
{
PlayerMove(board, ROW, COL);
//Sleep(1000);
ret = IsWin(board, ROW, COL);
if (ret != ' ')
{
break;
}
DisplayBoard(board, ROW, COL);
ComeputerMove(board, ROW, COL);
ret = IsWin(board, ROW, COL);
if (ret != ' ')
{
break;
}
DisplayBoard(board, ROW, COL);
}

break;
default:
break;
}
if (ret == ' ')
{
printf("平局\n");
DisplayBoard(board, ROW, COL);
}
else if (ret == 'x')
{
printf("玩家赢!!!\n");
DisplayBoard(board, ROW, COL);
}
else if (ret == '0')
{
printf("电脑赢!!!\n");
DisplayBoard(board, ROW, COL);
}
}
void menu()
{
printf("***********************\n");
printf("****1.paly   0.exit****\n");
printf("***********************\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("输入错误\n");
break;
}

} while(input);
}
int main()
{

test();
system("pause");
return 0;
}