C语言~三子棋游戏的实现

简单的三子棋游戏是指棋盘为3*3，玩家与电脑之间的对决，谁先将各自的棋下为一排（横/竖/斜）者获胜，电脑所下位置是随机产生的；源代码如下：

game,h中定义的函数：

#define ROWS 3
#define COLS 3

void init_board(char board[ROWS][COLS], int rows,int cols);//初始化棋盘
void display_board(char board[ROWS][COLS], int rows, int cols);//打印棋盘
void player_move(char board[ROWS][COLS], int rows, int cols);//玩家下棋的函数
void computer_move(char board[ROWS][COLS], int rows, int cols);//电脑下棋的函数
char check_win(char board[ROWS][COLS], int rows, int cols);//判断输赢函数
test.h用于存放主函数：

#include<stdio.h>
#include<stdlib.h>
#include"game.h"

void menu() //打印菜单
{
printf("********** 1.PLAY *********\n");
printf("********** *********\n");
printf("********** 0.EXIT *********\n");
}
void game()
{
int ret = 0;
char board[ROWS][COLS] = { 0 };
init_board(board,
4000
ROWS, COLS);
display_board(board, ROWS, COLS);
while (1)
{
printf("player move;\n");
player_move(board, ROWS, COLS);
display_board(board, ROWS, COLS);
ret = check_win(board, ROWS, COLS);
if (ret != ' ')
break;
printf("computer move:\n");
computer_move(board, ROWS, COLS);
display_board(board, ROWS, COLS);
check_win(board, ROWS, COLS);
if (ret != ' ')
break;
}
if (ret == 'X')
{
printf("Congratulatons! player win!\n");
}
else if (ret == '0')
{
printf("Undortunately! player lost!\n");
}
else
{
printf("It's tie,play again?\n");
}
}
enum Option
{
EXIT,
PLAY,
};
int main()
{
int input = 0;
srand((unsigned int)time(NULL));
do
{
menu();
printf("please chose:>");
scanf("%d", &input);
switch(input)
{
case PLAY:
game();
break;
case EXIT:
break;
default:
printf("default!please chose again!\n");
break;
}
} while (input);
system("pause\n");
return 0;
}game.c中游戏实现：

#include"game.h"
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<time.h>

void init_board(char board[ROWS][COLS], int rows, int cols)
{
memset(board, ' ', sizeof(char)*rows*cols); //设置内存的函数(指定内存地址，初始化，内存大小）
}
void display_board(char board[ROWS][COLS], int rows, int cols)
{
int i = 0;
for (i = 0; i < rows; i++)
{
printf(" %c | %c | %c \n", board[i][0], board[i][1], board[i][2]);
if (i != rows - 1)
printf("---|---|---\n");
}
}
void player_move(char board[ROWS][COLS], int rows, int cols)
{
int x = 0;
int y = 0;
/*printf("please enter the coordinates:>");
scanf("%d%d", &x, &y);*/
/*x--;
y--;*/
while (1)
{
printf("please enter the coordinates:>");
scanf("%d%d", &x, &y);
x--;
y--;
if ((x >= 0) && (x <= rows - 1) && (y >= 0) && (y <= cols - 1))
{
if (board[x][y] == ' ')
{
board[x][y] = 'X';
break;
}
else
{
printf("please enter again:>\n");
}
}
}
}
void computer_move(char board[ROWS][COLS], int rows, int cols)
{
while (1)
{
int x = rand() % 3;
int y = rand() % 3;
if (board[x][y] == ' ')
{
board[x][y] = '0';
break;
}
}
}
static int is_full(char board[ROWS][COLS], int rows, int cols)
{
int i = 0;
int j = 0;
for (i = 0; i < rows; i++)
{
for (j = 0; j < cols; j++)
{
if (board[i][j] == ' ')
return 0;
}
}
return 1; //表示棋盘已满
}
char check_win(char board[ROWS][COLS], int rows, int cols) //判断输赢，三行三列和两个交叉行
{
int i = 0;
for (i = 0; i < rows; 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 < cols; 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[2][2] != ' '))
{
return board[1][1];
}
if (is_full(board, rows, cols))
{
return 'q';//棋盘满了
}
return ' ';
}