Sanzi chess (player + computer)

Preface

Detailed explanation of all codes In the code

1. test.c— Content framework

#include"game.h"
void menu()
{
    
	printf("********************\n");
	printf("***1.play 0.exit****\n");
	printf("********************\n");
}
void game()
{
    
	char ret = 0;
	char board[row][col] = {
     0 };
	initboard(board, row, col);// Initialize chessboard 
	displayboard(board, row, col);// Print chessboard 
	while (1)// Use while Only in this way can players play chess with computers for many times 
	{
    
		pepplayer( board,  row,  col);// The player 
		ret = iswin(board, row, col);//iswin Used to judge who wins 
		if (ret != 'c')//c Representatives continue to   If ret The value of is not continue   Just jump out of the loop 
		{
    
			break;
		}
		displayboard(board, row, col);
		complayer( board,  row, col);// The computer 
		ret = iswin(board, row, col);
		if (ret != 'c')
		{
    
			break;
		}
		displayboard(board, row, col);
	}
	if (ret == '*')
	{
    
		printf(" Game player wins \n");
	}
	else if (ret == '#')
	{
    
		printf(" Computers win \n");
	}
	else
	{
    
		printf(" It ends in a draw \n");
	}
}
int main()
{
    
	int input = 0;
	do
	{
    
		menu();
		printf(" Input number :>");
		scanf("%d", &input);
		switch (input)
		{
    
		case 1:
			game();
			break;
		case 0:
			printf(" Input error \n");
			break;
		default:
			break;
		}
	} while (input);
	return 0;
}

2. game .h— Function declaration and header file

#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<stdlib.h>
#include<time.h>
#define col 3// On behalf of the line 
#define row 3// Representative column 
void initboard(char board[row][col], int rows, int cols);// The parameters here are supposed to be  row  and col But constants cannot be used as parameters 
void displayboard(char board[row][col], int rows, int cols);
void pepplayer(char board[row][col], int rows, int cols);
void complayer(char board[row][col], int rows, int cols);
char iswin(char board[row][col], int rows, int cols);// Judge who wins 

3. game .c– Definition of function

#include"game.h"
void initboard(char board[row][col], int rows, int cols)// initialization 
{
    
	int i = 0;
	int j = 0;
	for (i = 0; i < rows; i++)
	{
    
		for (j = 0; j < cols; j++)
		{
    
			board[i][j] = ' ';// Assign each to   Space   If the assignment is  0 Will report a mistake 
		}
	}
}
void displayboard(char board[row][col], int rows, int cols)// Print 
{
    
	int i = 0;
	int j = 0;
	for (i = 0; i < rows; i++)
	{
    
		for (j = 0; j < cols; j++)
		{
    
			printf("%c ", board[i][j]);// Print out the blank space first 
			if (j < cols - 1)// The last column does not |
			{
    
				printf(" |");// And then print it  |  You need to add a space here   Otherwise, you will find that it is different from the following | Can't connect 
			}
		}
		printf("\n");// Line break 
		if (i < rows - 1)// Because the last line doesn't need ---
		{
    
			for (j = 0; j < rows; j++)
			{
    
				printf("---");
				if (j < row - 1)// The last column does not |
				{
    
					printf("|");
				}
			}
		}
		printf("\n");// Space is also required here  
	}
}
void pepplayer(char board[row][col], int rows, int cols)
{
    
	int x = 0;
	int y = 0;
	while (1)
	{
    
		printf(" Please enter the coordinates :>");// Because it needs to be called many times, it is placed inside 
		scanf("%d%d", &x, &y);
		if (x >= 1 && x <= rows && y >= 1 && y <= cols)// Range 
		{
    
			if (board[x - 1][y - 1] == ' ')// The input is from 1 The value of the beginning   And the array subscript is the value -1
			{
    
				board[x - 1][y - 1] = '*';//* Representing game player 
				break;
			}
			else
			{
    
				printf(" The coordinates are occupied \n");
			}
		}
		else
		{
    
			printf(" Illegal coordinates \n");
		}
	}
}
void complayer(char board[row][col], int rows, int cols)
{
    
	while (1)
	{
    
		int x = rand() % row;// Use rand()%3  return 0 To 2
		int y = rand() % col;
			if (board[x][y] == ' ')
			{
    
				board[x][y] = '#';// Here itself from 0 At first, so you don't need -1
				break;
			}
	}
}
int isfull(char board[row][col], int rows, int cols)// Judge whether the chessboard is full   If full, return  1
{
    
	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;
}
char iswin(char board[row][col], int rows, int cols)
{
    
	int i = 0;
	for (i = 0; i < col; i++)// The situation of each column 
	{
    
		if (board[0][i] == board[1][i] && board[1][i] == board[2][i] && board[1][i] != ' ')// If each column is equal 
		{
    
			return board[0][i]; // Returns a value   I knew it was  '*' / '#'
		}
	}
	for (i = 0; i< row; i++)// The situation of each line 
	{
    
		if (board[i][0] == board[i][1] && board[i][1] == board[i][2] && board[i][0] != ' ')// If each line is equal 
		{
    
			return board[i][0];// Returns a value   I knew it was  '*' / '#'
		}
	}
	if (board[0][0] == board[1][1] && board[1][1] == board[2][2] && board[0][0] != ' ')
	{
    
		return board[0][0];// Diagonals 
	}
	if (board[0][2] == board[1][1] && board[1][1] == board[2][0] && board[0][2] != ' ')
	{
    
		return board[0][2];
	}
	if (isfull(board, row, col) == 1)// The chessboard is full 
	{
    
		return 'Q';
	}
	else
	return 'c';// None of the above happened   That is, the chessboard continues to execute 
}