jatek_mester.cpp

#include "jatek_mester.hpp"
#include <fstream>
#include <sstream>
#include <cmath>

JatekMester::JatekMester()
    : board(9, std::vector<int>(9, 0)), original_board(9, std::vector<int>(9, 0)) {}

bool JatekMester::is_valid_move(int number, int row, int col) const {

    for (int j = 0; j < 9; ++j) {
        if (j != col && board[row][j] == number) {
            return false;
        }
    }


    for (int i = 0; i < 9; ++i) {
        if (i != row && board[i][col] == number) {
            return false;
        }
    }


    int block_start_row = row - row % 3;
    int block_start_col = col - col % 3;
    for (int i = block_start_row; i < block_start_row + 3; ++i) {
        for (int j = block_start_col; j < block_start_col + 3; ++j) {
            if (i != row && j != col && board[i][j] == number) {
                return false;
            }
        }
    }

    return true;
}

bool JatekMester::is_original(int row, int col) const {
    return original_board[row][col] != 0;
}

void JatekMester::update_value(int row, int col, int value) {
    if (!is_original(row, col)) {
        board[row][col] = value;
    }
}

int JatekMester::get_value(int row, int col) const {
    return board[row][col];
}

bool JatekMester::load_from_file(const std::string& filename) {
    std::ifstream file(filename);
    if (!file.is_open()) {
        return false;
    }

    for (int i = 0; i < 9; ++i) {
        for (int j = 0; j < 9; ++j) {
            if (!(file >> original_board[i][j])) {
                return false;
            }
            board[i][j] = original_board[i][j];
        }
    }

    return true;
}

bool JatekMester::is_cell_valid(int row, int col) const {