tic_tac_toe/main.cpp_2

#include <iostream>
#include <sstream>
#include <stdexcept>
#include <string>
#include <vector>

#include <FL/Fl.H>
#include <FL/Fl_Window.H>
#include <FL/Fl_Button.H>

#include <Graph_lib/Graph.h>
#include <Graph_lib/Simple_window.h>

using namespace Graph_lib;

//Board.h
struct Board{
    std::vector <std::vector <int>> board;
    int moved;
    int moves;
    Board();
    int check_win();
    int check_pos(int x, int y);
    void check_board();
    void clean_board();
};

//Board.cpp
Board::Board() {
  this->board.assign(3, std::vector <int> (3, 0));
  this->moved = 1;
  this->moves = 0;
}

int Board::check_win()
{
    int winner=0;
    for (int i=0;i<3;i++)
    {
        if (board[0][i]==board[1][i] and board[1][i]==board[2][i] and board[0][i]!=0)
            winner = board[0][i];
        if (board[i][0]==board[i][1] and board[i][1]==board[i][2] and board[i][0]!=0)
            winner = board[i][0];
    }
    if (board[0][0]==board[1][1] and board[1][1]==board[2][2] and board[0][0]!=0)
        winner = board[0][0];
    if (board[2][0]==board[1][1] and board[1][1]==board[0][2] and board[2][0]!=0)
        winner = board[2][0];
    return winner;
}

void Board::check_board()
{
    for (int i=0;i<3;i++)
    {
        for (int i1:board[i])
        {
            std::cout<<i1<<" ";
        }
        std::cout<<"\n";
    }
    std::cout<<"\n";
}

int Board::check_pos(int x, int y)
{
    if (board[y][x]==0)
    {
        moves++;
        board[y][x]=moved;
        moved=1+moved%2;
        int win = check_win();
        //checkboard();
        if (win!=0)
            return win*10;
        if (win==0 and moves==9)
            return -1;
        return board[y][x];
    }
    else
        return 0;
}

void Board::clean_board() {
  this->board.assign(3, std::vector <int> (3, 0));
}


//cell.h
struct Cell{
  std::pair <int, int> crd;
  Fl_Button *button;
  Cell();
  Cell(int X, int Y);
  Cell(const Cell & );
  ~Cell();
};


//cell.cpp
Cell::Cell() {
  this->crd.first = 0;
  this->crd.second = 0;
  this->button = new Fl_Button(0, 0, 0, 0, "");
  this->button->color(FL_WHITE);
}

Cell::Cell(const Cell & ) = delete;

void cell_pushed(Fl_Widget *widget, void *data) {
    std::pair <int, int> *xy = (std::pair <int, int>*)data;
    std::cout << "Pushed: " << (*xy).first << ' ' << (*xy).second << "\n";
}

int window_x_len = 600;
int window_y_len = 400;
int step_from_edge = 50;
int button_size = 100;


Cell::Cell (int X, int Y) {
  this->crd.first = X;
  this->crd.second = Y;
  this->button = new Fl_Button(step_from_edge + button_size * X, step_from_edge + button_size * Y, button_size, button_size, "");
  this->button->color(FL_WHITE);
  this->button->callback(cell_pushed, (void*)&(this->crd));
}

Cell::~Cell() {
  delete this->button;
}

//visualboard.h
struct VisualBoard{
  std::vector <std::vector <Cell*>> playing_field;
  VisualBoard();
  void clean_board() {
    for (int y = 0; y < 3; ++y) {
      for (int x = 0; x < 3; ++ x) {
        playing_field[y][x] = new Cell(x, y);
      }
    }
  }
};

//visualboard.cpp
VisualBoard::VisualBoard() {
  this->playing_field.resize(3);
  for (int i = 0; i < 3; ++i) {
    playing_field[i].resize(3);
  }
  clean_board();
}




int main ()
try
{
  Fl_Window *window = new Fl_Window(100,400,window_x_len, window_y_len , "Window");
  VisualBoard test;
  window->end();
  window->show();
  return Fl::run();
  /*playing_field.resize(3);
  for (int i = 0; i < 3; ++i) {
    playing_field[i].resize(3);
  }
  for (int y = 0; y < 3; ++y) {
    for (int x = 0; x < 3; ++x) {
      // Cell new_Cell(x, y);
      // Cell new_Cell = new Cell(x, y);
      playing_field[y][x] = new Cell(x, y);
    }
  }*/
  /*Board board;
  board.check_pos(0, 2);
  board.check_pos(2, 0);
  board.check_board();
  board.clean_board();
  board.check_board();*/
}
catch (std::exception& e)
{
  std::cerr << e.what() << std::endl;
  return 1;
}
catch (...)
{
  std::cerr << "Oops, something went wrong..." << std::endl;
  return 2;
}