如何利用最简单的C语言实现AI五子棋
目录
- 一.如何实现
- 二.实现代码及分析
- (1)菜单的制作
- (2)棋盘的初始化和打印
- (3)玩家下子
- (4)电脑下子
- (5)判断输赢
- 三.整个代码
- (1)test.c文件下代码:
- (2)game.c下的代码
- (3)game.h下的代码
- 四.具体效果
- 1.棋盘打印以及选择先后手
- 2.玩家和电脑下子
- 3.判断输赢
- 总结
一.如何实现
1.说明:由于本文只是对初学C语言的人学习,所以将不会涉及任何算法,电脑将采用随机下子的方式。(后期会为大家介绍Alpha-Beta剪枝算法实现人工智能AI)
2.主要部分:
(1)菜单
(2)打印棋盘
(3)玩家下子
(4)电脑下子
(5)判断输赢
二.实现代码及分析
(1)菜单的制作
运用do…while循环调用菜单,根据用户选择实现玩游戏和退出游戏
(2)棋盘的初始化和打印
棋盘采用标准的15*15的格子,我们可以宏定义ROW和COL分别为15和15来表示行和列。
分别封装两个函数对棋盘进行初始化和打印
初始化:(这里将棋盘初始化为空格,可初始化为其他)
打印棋盘:
效果如下:
(3)玩家下子
void PlayerMove(char board[ROW][COL], int row, int col) { int x, y; while (1) { printf("玩家走:\n"); printf("请输入坐标:\n"); 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] = 'O'; break; } else { printf("坐标被占用,请重新输入\n"); } } else { printf("坐标非法,请重新输入\n"); } } }
玩家下子主要采用的思路是,判断棋盘上是否有子,已经输入的坐标是否合法。
(4)电脑下子
void ComputerMove(char board[ROW][COL], int row, int col) { int x, y; printf("电脑走\n"); while (1) { x = rand() % row; y = rand() % col; if (board[x][y] == ' ') { board[x][y] = 'X'; break; } } }
与玩家下子相同,此处采用的随机下子,后期可进行优化(比如:极大极小值算法、Alpha-Beta剪枝算法等)
(5)判断输赢
通过遍历整个棋盘,观察是否有连五子情况出现,代码如下:
char iswin(char board[ROW][COL], int row, int col) { //行 int ren=0,dian=0,i,j; for (i = 0;i < row;i++) { ren = 0; for (j = 0;j < col;j++) { if (board[i][j] == 'O') ren++; else ren = 0; if (ren >= 5) return 'o'; } } for (i = 0;i < row;i++) { dian = 0; for (j = 0;j < col;j++) { if (board[i][j] == 'X') dian++; else dian = 0; if (dian >= 5) return 'x'; } } //列 ren = dian = 0; for (i = 0;i < row;i++) { ren = 0; for (j = 0;j < col;j++) { if (board[j][i] == 'O') ren++; else ren = 0; if (ren >= 5) return 'o'; } } for (i = 0;i < row;i++) { dian = 0; for (j = 0;j < col;j++) { if (board[j][i] == 'X') dian++; else dian = 0; if (dian >= 5) return 'x'; } } //右下 ren = dian =i=j= 0; for (int k = 0;k < row;k++) { i = k; j = 0; ren = 0; while (i < row && j < col) { if (board[i][j] == 'O') { ren++; } else { ren = 0; } i++; j++; if (ren >= 5) return 'o'; } } i = j = 0; for (int k = 0;k < row;k++) { i = k; j = 0; dian = 0; while (i < row && j < col) { if (board[i][j] == 'X') { dian++; } else dian = 0; i++; j++; if (dian >= 5) return 'x'; } } //右上 for (int k = row;k >=0;k--) { j = col; i = k; ren = 0; while (i >=0 && j >=0) { if (board[i][j] == 'O') { ren++; } else ren = 0; i--; j--; if (ren >= 5) return 'o'; } } for (int k = row;k >= 0;k--) { i = k; j = col; dian = 0; while (i >= 0 && j >= 0) { if (board[i][j] == 'X') { dian++; } else dian = 0; i--; j--; if (dian >= 5) return 'o'; } } for (int k = row;k >= 0;k--) { i = k; j = 0; dian = 0; while (i >= 0 && j <col) { if (board[i][j] == 'O') { dian++; } else dian = 0; i--; j++; if (dian >= 5) return 'o'; } } for (int k = row;k >= 0;k--) { i = k; j = 0; dian = 0; while (i >= 0 && j <col) { if (board[i][j] == 'X') { dian++; } else dian = 0; i--; j++; if (dian >= 5) return 'x'; } } for (int k = 0;k < row;k++) { i = k; j = col; dian = 0; while (i < row && j >= 0) { if (board[i][j] == 'O') { dian++; } else dian = 0; i++; j--; if (dian >= 5) return 'o'; } } for (int k = 0;k <row;k++) { i = k; j = col; dian = 0; while (i <row && j >= 0) { if (board[i][j] == 'X') { dian++; } else dian = 0; i++; j--; if (dian >= 5) return 'x'; } } for (int k = row;k >= 0;k--) { i = k; j = 0; dian = 0; while (i >= 0 && j <col) { if (board[i][j] == 'O') { dian++; } else dian = 0; i--; j++; if (dian >= 5) return 'o'; } } for (int k = row;k >= 0;k--) { i = k; j = 0; dian = 0; while (i >= 0 && j <col) { if (board[i][j] == 'X') { dian++; } else dian = 0; i--; j++; if (dian >= 5) return 'x'; } } for (int k = 0;k < row;k++) { i = k; j = col; dian = 0; while (i < row && j >= 0) { if (board[i][j] == 'O') { dian++; } else dian = 0; i++; j--; if (dian >= 5) return 'o'; } } for (int k = 0;k <row;k++) { i = k; j = col; dian = 0; while (i <row && j >= 0) { if (board[i][j] == 'X') { dian++; } else dian = 0; i++; j--; if (dian >= 5) return 'x'; } } return 'c'; //左 }
三.整个代码
(1)test.c文件下代码:
#define _CRT_SECURE_NO_WARNINGS 1 #include"game.h" void menu() { printf("**************************\n"); printf("******* 1. play *********\n"); printf("******* 0. exit *********\n"); printf("**************************\n"); } void game() { //棋盘数组 char board[ROW][COL],ret; //初始化棋盘 InitBoard(board, ROW, COL); //打印棋盘 PrintBoard(board, ROW, COL); //下棋 int a; printf("1.先手 0.后手"); scanf("%d", &a); if(a==1) PlayerMove(board, ROW, COL); else ComputerMove(board, ROW, COL); while (1) { if (a == 0) { //PlayerMove(board, ROW, COL); PlayerMove(board, ROW, COL); PrintBoard(board, ROW, COL); ret=iswin(board, ROW, COL); if (ret != 'c') { break; } //ComputerMove(board, ROW, COL); ComputerMove(board, ROW, COL); PrintBoard(board, ROW, COL); ret = iswin(board, ROW, COL); if (ret != 'c') { break; } } else { //ComputerMove(board, ROW, COL); ComputerMove(board, ROW, COL); PrintBoard(board, ROW, COL); ret = iswin(board, ROW, COL); if (ret != 'c') { break; } //PlayerMove(board, ROW, COL); PlayerMove(board, ROW, COL); PrintBoard(board, ROW, COL); ret = iswin(board, ROW, COL); if (ret != 'c') { break; } } } if (ret == 'o') printf("玩家赢\n"); else if (ret == 'x') printf("电脑赢\n"); else printf("平局\n"); } int main() { int input; srand((unsigned int)time(NULL)); do { menu(); scanf("%d", &input); switch (input) { case 1: game(); break; case 0: printf("退出游戏\n"); break; default: printf("选择错误\n"); break; } } while (input); return 0; }
(2)game.c下的代码
#define _CRT_SECURE_NO_WARNINGS 1 #include"game.h" void InitBoard(char board[ROW][COL], int row, int col) { for (int i = 0;i < row;i++) { for (int j = 0;j < col;j++) { board[i][j] = ' '; } } } void PrintBoard(char board[ROW][COL], int row, int col) { for (int i = 0;i < row;i++) { printf(" "); printf("%2d", i+1); } printf("\n"); for (int i = 0;i < row;i++) { //打印数据 printf("%2d", i + 1); for (int j = 0;j < col;j++) { printf(" %c ", board[i][j]); if (j < col - 1) printf("|"); } printf("\n"); //打印分割行 if (i < row - 1) { printf(" "); for (int 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, y; while (1) { printf("玩家走:\n"); printf("请输入坐标:\n"); 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] = 'O'; break; } else { printf("坐标被占用,请重新输入\n"); } } else { printf("坐标非法,请重新输入\n"); } } } void ComputerMove(char board[ROW][COL], int row, int col) { int x, y; printf("电脑走\n"); while (1) { x = rand() % row; y = rand() % col; if (board[x][y] == ' ') { board[x][y] = 'X'; break; } } } char iswin(char board[ROW][COL], int row, int col) { //行 int ren=0,dian=0,i,j; for (i = 0;i < row;i++) { ren = 0; for (j = 0;j < col;j++) { if (board[i][j] == 'O') ren++; else ren = 0; if (ren >= 5) return 'o'; } } for (i = 0;i < row;i++) { dian = 0; for (j = 0;j < col;j++) { if (board[i][j] == 'X') dian++; else dian = 0; if (dian >= 5) return 'x'; } } //列 ren = dian = 0; for (i = 0;i < row;i++) { ren = 0; for (j = 0;j < col;j++) { if (board[j][i] == 'O') ren++; else ren = 0; if (ren >= 5) return 'o'; } } for (i = 0;i < row;i++) { dian = 0; for (j = 0;j < col;j++) { if (board[j][i] == 'X') dian++; else dian = 0; if (dian >= 5) return 'x'; } } //右下 ren = dian =i=j= 0; for (int k = 0;k < row;k++) { i = k; j = 0; ren = 0; while (i < row && j < col) { if (board[i][j] == 'O') { ren++; } else { ren = 0; } i++; j++; if (ren >= 5) return 'o'; } } i = j = 0; for (int k = 0;k < row;k++) { i = k; j = 0; dian = 0; while (i < row && j < col) { if (board[i][j] == 'X') { dian++; } else dian = 0; i++; j++; if (dian >= 5) return 'x'; } } //右上 for (int k = row;k >=0;k--) { j = col; i = k; ren = 0; while (i >=0 && j >=0) { if (board[i][j] == 'O') { ren++; } else ren = 0; i--; j--; if (ren >= 5) return 'o'; } } for (int k = row;k >= 0;k--) { i = k; j = col; dian = 0; while (i >= 0 && j >= 0) { if (board[i][j] == 'X') { dian++; } else dian = 0; i--; j--; if (dian >= 5) return 'o'; } } for (int k = row;k >= 0;k--) { i = k; j = 0; dian = 0; while (i >= 0 && j <col) { if (board[i][j] == 'O') { dian++; } else dian = 0; i--; j++; if (dian >= 5) return 'o'; } } for (int k = row;k >= 0;k--) { i = k; j = 0; dian = 0; while (i >= 0 && j <col) { if (board[i][j] == 'X') { dian++; } else dian = 0; i--; j++; if (dian >= 5) return 'x'; } } for (int k = 0;k < row;k++) { i = k; j = col; dian = 0; while (i < row && j >= 0) { if (board[i][j] == 'O') { dian++; } else dian = 0; i++; j--; if (dian >= 5) return 'o'; } } for (int k = 0;k <row;k++) { i = k; j = col; dian = 0; while (i <row && j >= 0) { if (board[i][j] == 'X') { dian++; } else dian = 0; i++; j--; if (dian >= 5) return 'x'; } } return 'c'; //左 }
(3)game.h下的代码
#pragma once #define ROW 15 #define COL 15 #include<stdio.h> #include<stdlib.h> #include<time.h> //初始化棋盘 void InitBoard(char board[ROW][COL], int row, int col); //打印棋盘 void PrintBoard(char board[ROW][COL], int row, int col); //人走 void PlayerMove(char board[ROW][COL], int row, int col); //电脑走 void ComputerMove(char board[ROW][COL], int row, int col); //判断输赢 char iswin(char board[ROW][COL], int row, int col);
四.具体效果
1.棋盘打印以及选择先后手
2.玩家和电脑下子
3.判断输赢
此处我们看到玩家赢了,可是电脑实在太蠢了,所以还有很多地方需要添加的
欢迎各位大佬对此代码进行优化!
总结
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