【初阶C语言】实现三子棋（详解+全部源码）（三）

//头文件的包含
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#define ROW 3
#define COL 3
//函数的声明
//初始化棋盘
void InitBoard(char board[ROW][COL], int row, int col);
//打印棋盘
void DisplayBoard(char board[ROW][COL], int row, int col);
//玩家下棋
void PlayerMove(char board[ROW][COL], int row, int col);
//电脑下棋
void ComputerMove(char board[ROW][COL], int row, int col);
//判断输赢
char IsWin(char board[ROW][COL],int row, int col);

#include "game.h"
void InitBoard(char board[ROW][COL], int row, int col)
{
  int i = 0;
  for (i = 0; i < row; i++)
  {
  int j = 0;
  for (j = 0; j < col; j++)
  {
    board[i][j] = ' ';
  }
  }
  //memset(&board[0][0], ' ', 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++)
  {
  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)
  {
    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("玩家下棋:>\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] == ' ')
    {
    board[x - 1][y - 1] = '*';
    break;
    }
    else
    {
    printf("坐标被占用，重新输入\n");
    }
  }
  else
  {
    printf("坐标非法，请重新输入\n");
  }
  }
}
//电脑随机下棋
void ComputerMove(char board[ROW][COL], int row, int col)
{
  int x = 0;
  int y = 0;
  printf("电脑下棋>:\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;
}
//判断输赢
//玩家赢 - '*'
//电脑赢 - '#'
//平局   - 'Q'
//继续   - 'C'
char IsWin(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][0] != ' ')
  {
    return board[i][0];
  }
  }
  for (i = 0; i < col; i++)
  {
  if (board[0][i] == board[1][i] && board[1][i] == board[2][i] && board[0][i] != ' ')
  {
    return board[0][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];
  }
  //判断是否平局
  if (IsFull(board, row, col))
  {
  return 'Q';
  }
  //游戏继续
  return 'C';
}

#include "game.h"
void menu()
{
  printf("*******************************\n");
  printf("********    1. play      ******\n");
  printf("********    0. exit      ******\n");
  printf("*******************************\n");
}
void game()
{
  //存放数据需要一个3*3的二维数组
  char board[ROW][COL] = { 0 };
  //初始化棋盘
  InitBoard(board, ROW, COL);
  //显示棋盘
  DisplayBoard(board, ROW, COL);
  char ret = 0;
  while (1)
  {
  //玩家下棋
  PlayerMove(board, ROW, COL);
  DisplayBoard(board, ROW, COL);
  //判断输赢
  ret = IsWin(board, ROW, COL);
  if (ret != 'C')
  {
    break;
  }
  //电脑下棋
  ComputerMove(board, ROW, COL);
  DisplayBoard(board, ROW, COL);
  //判断输赢
  ret = IsWin(board, ROW, COL);
  if (ret != 'C')
  {
    break;
  }
  }
  if ('*' == ret)
  {
  printf("玩家赢\n");
  }
  else if ('#' == ret)
  {
  printf("电脑赢\n");
  }
  else if ('Q' == ret)
  {
  printf("平局\n");
  }
}
int main()
{
  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("选择错误，重新选择\n");
    break;
  }
  } while (input);
  return 0;
}