Codecademy export

gameplay.cpp

#include <iostream>
#include <vector>
#include <algorithm>
#include "gameplay.h"

bool check_match(int x, int y, int z, const std::vector<int>& acts){
    std::vector<int> answer = {x, y, z};
    int match_counter = 0;
    for (int number : acts) {
        for (int i : answer) {
            if (number == i) {
                match_counter++;
            }
        }
    }
    if (match_counter >= 3){
        return true;
    } else{
        return false;
    }
}

void show_field(int array[][3]){
    std::cout << "===================\n";
    for (int i = 0; i < 3; ++i) {
        std::cout << "| ";
        for (int j = 0; j < 3; ++j) {
            if (array[i][j] == 0){
                std::cout << "-O-" << " | ";
            } else if (array[i][j] == 10){
                std::cout << "-X-" << " | ";
            } else {
                std::cout << " " << array[i][j] << "  | ";
            }
        }
        std::cout << std::endl;
    }
    std::cout << "===================\n";
}

void *add_new_number(int &num,  std::vector<int> &entered_numbers) {
    std::cout << "\nEnter your number!\n";
    std::cin >> num;
    while (std::count(entered_numbers.begin(), entered_numbers.end(), num)){
        std::cout << "\nYou`ve already have this number! Enter new number!\n";
        std::cin >> num;
    }
    return nullptr;
}

void intro() {
    std::cout << "=============================================\n"
                 "Hello! In this game you have to choose numbers from 1 to 9\n"
                 "to win you need to make a line of 3 numbers before your opponent\n"
                 "first player will put the \"-X-\" in the cell\n"
                 "second player will put the \"-O-\" in the cell\n"
                 "=============================================\n";
}

bool play_again() {
    char sym;
    std::cin >> sym;
    if (sym == 'N' or sym == 'n') {
        std::cout << "Goodbye!\n";
        return false;
    }
    return true;
}

ttt.cpp

#include <iostream>
#include "gameplay.h"
#include <vector>

int main() {
    bool want_to_play = true;
    while (want_to_play){
        int field[3][3] = {{1,2,3},{4,5,6},{7,8,9}};
        intro();
        show_field(field);
        std::vector<int> player_1_acts;
        std::vector<int> player_2_acts;
        std::vector<int> current_player_acts;
        std::vector<int> entered_number;
        int player_switch = 0;
        bool we_have_a_winner = false;
        int players_chosen_number = 0;
        ////////////////////////////////////////////////////
        //game cycle with question about wanting to continue
        while (!we_have_a_winner && entered_number.size() < 9){
            add_new_number(players_chosen_number,entered_number);
            entered_number.push_back(players_chosen_number);
            /////////////////////////////////////////////////////////////
            //order of cells in field(array) related by entered number
            int string_of_field = (players_chosen_number + 2) / 3 - 1;
            int row_of_field = -((9 - players_chosen_number) % 3) + 2;
            ////////////////////////////////////////////////////////////
            if (player_switch == 0){
                player_1_acts.push_back(players_chosen_number);
                current_player_acts = player_1_acts;
                field[string_of_field][row_of_field] = 10;
            } else if (player_switch == 1){
                player_2_acts.push_back(players_chosen_number);
                current_player_acts = player_2_acts;
                field[string_of_field][row_of_field] = 0;
            }
            //
            show_field(field);
            //
            if (check_match(1 ,2, 3, current_player_acts) or
                check_match(4 ,5, 6, current_player_acts) or
                check_match(7 ,8, 9, current_player_acts) or
                check_match(1 ,4, 7, current_player_acts) or
                check_match(2 ,5, 8, current_player_acts) or
                check_match(3 ,6, 9, current_player_acts) or
                check_match(1 ,5, 9, current_player_acts) or
                check_match(3 ,5, 7, current_player_acts))
            {we_have_a_winner = true;
            }

            if (we_have_a_winner){
                std::cout << "player " << player_switch + 1 << " is winner!\n";
            }
            ///////////////
            //player change
            player_switch = (player_switch + 1) % 2;
            //////////////
        }
        if (!we_have_a_winner){
            std::cout << "\nWe have a dead heat!\n";
        }
        std::cout << "\nDo you want to play again?\n"
                     "for YES enter any symbol, for NO enter \"N\"\n";
        want_to_play = play_again();
        }
    return 0;
}