C language implementation of the small game [sanziqi] Notes detailed logic clear, come and have a look!!

Sanzi _c Language implementation

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The detailed steps

One 、game.h（ The header file ）

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

#define ROW 3 // use define Defined checkerboard row and column size   Because it is convenient to expand the chessboard later 
#define COL 3

void initboard (char board[ROW][COL], int row, int col );// Initialize chessboard 
void displayboard (char board[ROW][COL], int row, int col );// Print chessboard 
void playermove(char board[ROW][COL], int row, int col);// Players play chess 
void computermove(char board[ROW][COL], int row, int col);// The computer plays chess 

char is_win(char board[ROW][COL], int row, int col);// Judge a win or a draw 

Two 、game.c（ Game source file ）

The code is as follows （ Example ）：

#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] = ' ';
		}
	}

}
void displayboard(char board[ROW][COL], int row , int col)
{
    
	// Two parts   Part of the print data   Partial print split lines 
	int i = 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;

	while (1)
	{
    
		printf(" Please enter the coordinates >");
		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] = '*';// Don't type the assignment number wrong again 
			}
			else
			{
    
				printf(" The location is already occupied .\n");
			}
			break;
		}
		else
		{
    
			printf(" Wrong coordinate input ;\n");
		}
	}


}
void computermove(char board[ROW][COL], int row, int col)
{
    
	int x = 0;
	int y = 0;


	while (1)
	{
    
		x = rand() % row;// utilize rand  Generate random numbers   The reason %row  Because the remaining number must be 0~row Between 
		y = rand() % col;

		if (board[x][y] == ' ')
		{
    
			board[x][y] = '#';
			break;
		}
	}

}

static int if_full(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++)
		{
    
			if (board[i][j] == ' ')
			{
    
				return 0;
			}
		}
	}
	return 1;
}

char is_win(char board[ROW][COL], int row, int col)
{
    
	// Judgment line 
	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]	;
	}
	// Judgment column 
	 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];
	}
	// Diagonals 
	if (board[0][0] == board[1][1] && board[1][1] == board[2][2] && board[0][0] != ' ')
	{
    
		return board[0][0];
	}
	
	if (board[0][2] == board[1][1] && board[1][1] == board[2][0] && board[0][2] != ' ')
	{
    
		return board[0][2];
	}

	int m = 0;
	m = if_full(board, ROW, COL);
	if (m == 1)
	{
    
		return 'Q';
	}
	else
	{
    
		return 'c';
	}

}

3、 ... and 、test.c（ Test source file ）

#include "game.h"

void menu()
{
    
	printf("*****************************\n");
	printf("******** 1.play *************\n");
	printf("******** 0.exit *************\n");
	printf("*****************************\n");

}
void game()
{
    

	char board[ROW][COL] = {
    0};
	initboard(board, ROW, COL);
	displayboard(board, ROW, COL);
	char ret = ' ';
	while (1)
	{
    
		playermove(board, ROW, COL);
		displayboard(board, ROW, COL);
		ret=is_win(board, ROW, COL);
		if (ret != 'c')
		{
    
			break;
		}

		computermove(board, ROW, COL);
		displayboard(board, ROW, COL);
		ret = is_win(board, ROW, COL);
		if (ret != 'c')
		{
    
			break;
		}
		
	}

	if (ret == '*')
	{
    
		printf(" Players win \n");
	}
	else if (ret == '#')
	{
    
		printf(" The computer wins \n");
	}
	else
	{
    
		printf(" It ends in a draw \n");
	}


}
void test()
{
    

	int input = 0;
	do              // Specific chess playing steps 
	{
    
		menu();
		printf(" Please enter ：");
		scanf("%d", &input);
		switch (input)
		{
    
		case 1:
			printf(" Now let's start sanziqi >\n");
			game();
			break;
		case 0:
			printf(" sign out \n");
			break;
		default:
			printf(" Input error , Please re-enter \n");
			break;
		}


	} while (input);

}




int main()
{
    
	srand((unsigned int)time(NULL));
	test();
	return 0;
}

Four 、 Effect display !

It's really hard to draw ！！！！！！ After several rounds, there was no draw The computer is too stupid

summary

This is from C Language implementation of the three chess , If you have any questions, welcome to the comment area perhaps Talk to me in private ！！！