Tic-Tac-Toe-Game/Code.cpp at main · bulbulT/Tic-Tac-Toe-Game · GitHub

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#include <iostream>
using namespace std;

char board[3][3] = {{'1', '2', '3'}, {'4', '5', '6'}, {'7', '8', '9'}};

char current_marker;
int current_player;

void drawBoard()
{
    cout << " " << board[0][0] << " | " << board[0][1] << " | " << board[0][2] << endl;
    cout << "__________\n";
    cout << " " << board[1][0] << " | " << board[1][1] << " | " << board[1][2] << endl;
    cout << "__________\n";
    cout << " " << board[2][0] << " | " << board[2][1] << " | " << board[2][2] << endl;
}

bool placeMarker(int slot)
{
    int row = slot / 3;
    int col;

    if(slot % 3 == 0) {
        row = row - 1;
        col = 2;
    }
    else {
        col = slot % 3 - 1;
    }
    if(board[row][col] != 'X' && board[row][col] != 'O') {
        board[row][col] = current_marker;
        return true;
    } else {
        return false;
    }
}

int winner()
{
    for(int i = 0; i < 3; i++)
    {
        //rows
        if(board[i][0] == board[i][1] && board[i][1] == board[i][2])
        {
            return current_player;
        }
        // columns
        if(board[0][i] == board[1][i] && board[1][i] == board[2][i])
        {
            return current_player;
        }
    }
    if(board[0][0] == board[1][1] && board[1][1] == board[2][2])
    {
        return current_player;
    }
    if(board[0][2] == board[1][1] && board[1][1] == board[2][0])
    {
        return current_player;
    }
    return 0;
}

void swap_player_and_marker()
{
    if(current_marker == 'X')
    {
        current_marker = 'O';
    } else {
        current_marker = 'X';
    }
    if(current_player == 1)
    {
        current_player = 2;
    } else {
        current_player = 1;
    }
}

void game()
{
    cout << "Player one, choose your marker: ";
    char marker_p1;
    cin >> marker_p1;

    current_player = 1;
    current_marker = marker_p1;

    drawBoard();

    int player_won;

    for(int i = 0; i < 9; i++)
    {
        cout << "It`s player " << current_player << "`s turn. Enter your slot: ";
        int slot;
        cin >> slot;

        if(slot < 1 || slot > 9) {
            cout << "That slot is invalid! Try another slot!"; i--; continue;
        }

        if(!placeMarker(slot)) {
            cout << "That slot occupied! Try another slot!"; i--; continue;
        }
        drawBoard();

        player_won = winner();

        if(player_won == 1)
        {
            cout << "Player one won! Congratulations!"; break;
        }
        if(player_won == 2)
        {
            cout << "Player two won! Congratulations!"; break;
        }

        swap_player_and_marker();
    }
    if(player_won == 0)
    {
        cout << "That is a Tie!";
    }
}

int main()
{
    game();
}