Application of C language array in Sanzi chess -- prototype of Queen n problem

C A small game that can be used by language Xiaobai , Let's take a look at ~
After that, I will encounter the data structure next time n The Queen's question will be much easier to understand
What is? **

Three chess game

**？
A row or a column, a diagonal line or an anti focal line are all the same type of chess Son , Then the player wins , Easy to do , Let's try it together ！


Main knowledge points ： Two dimensional array ,for sentence ,switch sentence , A little knowledge of timestamp

First, we need to design the function we want to use
Write the header file "game.h"

#pragma once

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

#define ROW 3
#define COL 3

// Initialize chessboard 
void InitBoard(char board[ROW][COL], int row, int col);

// Print chessboard 
void DisplayBoard(char board[ROW][COL], int row, int col);

// Players play chess 
void Player_Move(char board[ROW][COL], int row, int col);

// The computer plays chess 
 void Computer_Move(char board[ROW][COL], int row, int col);

// The criteria for judging whether to win or lose 
 // Game player wins --‘*’
// Computers win -- ‘#’
// It ends in a draw  -- 'Q'
// continue  -- 'C'
 char is_win(char board[ROW][COL], int row, int col);

Secondly, think about how to realize your game , How to show it , Write a test function , This is more scale

#include "game.h"



void menu() {
	printf("*********************************\n");
	printf("** Welcome to third-chess game **\n");
	printf("*******  Choose a number  *******\n");
	printf("******* 	1.Play       ****\n");
	printf("******* 	0.Exit       ****\n");
	printf("*********************************\n");
	printf("*********************************\n");

}

void game() {
	// Store the data in a two-dimensional array , Players play chess '*' ,  Computer chess is '#'
	char board[ROW][COL] = { 0 };// The contents of the array should be all spaces 
	InitBoard(board, ROW, COL);// Initialize chessboard 
	// Print chessboard 
	DisplayBoard(board,ROW,COL);
	// Playing chess 
	char ret = 0;
	while (1) {
		Player_Move(board, ROW, COL);
		DisplayBoard(board, ROW, COL);
		ret = is_win(board, ROW, COL);
		if (ret != 'C')
			break;
		Computer_Move(board, ROW, COL);
		DisplayBoard(board, ROW, COL);
		ret = is_win(board, ROW, COL);
		if (ret != 'C')
			break;
	}
	if (ret == '*') {
		printf("You Win!!!\n");
	}
	else if (ret == '#') {
		printf("You Fail!!!\n");
	}
	else {
		printf("Tie!!!\n");
	}
}

void test() {
	int input = 0;
	srand((unsigned int)time(NULL));
	do {
		menu();
		printf(" Please select :>");
		scanf("%d", &input);
		switch (input) {
		case 1:
			game();
			break;
		case 0:
			printf(" Quit the game ");
			break;
		default:
			printf(" Wrong choice , Please re-enter ");
			//break; Feel this break Yes, but not 
		}
	} while (input);

}

int main() {
	test();
	return 0;
}

Last in game.cpp Complete the specific implementation of the function , Pay attention to *** Test function by function *** Oh ！！！！ Otherwise, it will be changed later bug Change to death

#include "game.h"

// Initialize chessboard 
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] = ' ';
		}
	}
}

// Print chessboard 
void DisplayBoard(char board[ROW][COL], int row, int col) {
	for (int i = 0; i < row; i++)
	{
		for (int j = 0; j < col; j++)
		{
			printf(" %c ", board[i][j]);
			if (j < col - 1)printf("|");
		}
		puts("");
		for (int j = 0; j < col; j++)
		{
			printf("---");
			if (j < col - 1)printf("|");
		}
		puts("");
	}
	puts("");
}

// Players play chess 
void Player_Move(char board[ROW][COL], int row, int col) {
	printf("Player Move:>");
	int x = 0;
	int y = 0;
	while (1) {
		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(" The coordinates are occupied , Please enter other coordinates ");
		}
		else {
			printf(" Illegal coordinates , Please re-enter ");

		}
	}
}

// The computer plays chess 
void Computer_Move(char board[ROW][COL], int row, int col) {
	int x = 0;
	int y = 0;
	printf(" The computer plays chess :>\n");
	while (1) {
		x = rand() % ROW;// The calculated value is 0-2 Positive integer between 
		y = rand() % COL;// ditto 
		if (board[x][y] == ' ') {
			board[x][y] = '#';
			break;
		}
	}
}

// The criteria for judging whether to win or lose 
 // Game player wins --‘*’
// Computers win -- ‘#’
// It ends in a draw  -- 'Q'
// continue  -- 'C'
char is_win(char board[ROW][COL], int row, int col) {
	// Judge three lines 
	for (int i = 0; i < row; i++) {
		if (board[i][0] == board[i][1] && board[i][1] == board[i][2] && board[i][1] != ' ')
			return board[i][0];
	}
	// Judge three columns 
	for (int 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];
	}
	// Diagonal judgment 
	if (board[0][0] == board[1][1] && board[1][1] == board[2][2] && board[1][1] != ' ') {
		return board[1][1];
	}
	// Anti diagonal judgment 
	if (board[0][2] == board[1][1] && board[1][1] == board[2][0] && board[2][0] != ' ') {
		return board[1][1];
	}
	// Continue to operate 
	return 'C';
}

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