C++ move validity for tic tac toe

[lucyfersdaddy]

Hi, I am a newby and am surprised I made it this far. My program is a TicTacToe program. I am having troubles with checking the validity of each move. I have tried multiple things, but could not figure it out. If someone could help point me in the right direction, that would be much appreciated.

#include <iostream>
using namespace std;

class ticTacToe
{
private:
    char board[3][3];
    char player;
    int move;

public:

    void initiate();
    void postboard();
    void input();
    bool done();
    bool checkmove();
    void playagain();

};



int main()
{
    ticTacToe game;

    game.initiate();

    do
    {

    game.postboard();
    game.input();
    //game.checkmove();

    }
    while(game.done() == false);

    game.playagain();
}

void ticTacToe::initiate()
{

        int n = 1;

        for (int x=0; x<3; x++)
        {
            for (int y=0; y<3; y++)
            {
                board[x][y] = '0' + n++;
            }
        }

}

void ticTacToe::postboard()
{

    system("cls");

    for (int x=0; x<3; x++)
    {
        for (int y=0; y<3; y++)
        {
            cout << " " << board[x][y] << " ";
        }
        cout << endl;
    }
}

void ticTacToe::input()
{
    char move = '0';
    if (player == ' ')
    {
            player = 'X';
    }
    else if (player == 'X')
    {
        player = 'O';
    }
    else 
    {
        player = 'X';
    }


    cout << "Player " << player << " choose your move." << endl;
    cin >> move;
    bool checkout = false;
    while (checkout == false)
    {
    if (move == '1')
    {
        board[0][0] = player;
    }
    else if (move == '2')
    {
        board[0][1]=player; 
    }
    else if (move == '3')
    {
        board[0][2]=player;
    }   
    else if (move == '4')
    {
        board[1][0] =player;
    }
    else if (move == '5')
    {
        board[1][1] = player;
    }
    else if (move == '6')
    {   board[1][2] = player;
    }
    else if (move == '7')
    {
        board[2][0] = player;
    }
    else if (move == '8')
    {
        board[2][1] = player;
    }
    else if (move == '9')
    {
        board[2][2] = player;
    }
    else 
    {
        cout << " uhh... wut";
    }
    checkout = checkmove();
    }

}

bool ticTacToe::done()
{
    int xwin=0;
    int owin=0;
    int cats=0;

    bool end = false;


    if (board[0][0] == board[0][1] && board[0][0] == board[0][2])
    {
        cout <<"Player " << player << "  won." << endl;
        end = true;
    }
    else if (board[1][0] == board[1][1] && board[1][0] == board[1][2])
    {
        cout <<"Player " << player << "  won." << endl;
        end = true;
    }
    else if (board[2][0] == board[2][1] && board[2][0] == board[2][2])
    {
        cout <<"Player " << player << "  won." << endl;
        end = true;
    }
    else if (board[0][0] == board[1][0] && board[0][0] == board[2][0])
    {
        cout <<"Player " << player << "  won." << endl;
        end = true;
    }
    else if (board[0][1] == board[1][1] && board[0][1] == board[2][1])
    {
        cout <<"Player " << player << "  won." << endl;
        end = true;
    }
    else if (board[0][2] == board[1][2] && board[0][2] == board[2][2])
    {
        cout <<"Player " << player << "  won." << endl;
        end = true;
    }
    else if (board[0][0] == board[1][1] && board[0][0] == board[2][2])
    {
        cout <<"Player " << player << "  won." << endl;
        end = true;
    }
    else if (board[2][0] == board[1][1] && board[2][0] == board[0][2])
    {
        cout <<"Player " << player << "  won." << endl;
        end = true;
    }
    else 
        end = false;


    return end;
}

bool ticTacToe::checkmove()
{

}

void ticTacToe::playagain()
{
    char again = ' ';

    cout << "Play again?" << endl;
    cout << "Y or N" << endl;

    cin >> again;

    again = toupper(again);

    if (again == 'Y')
    {
        main();
    }
    else 
    {
        cout << "Well alright....";
    }
}

[Slavi]

By move validing you mean this method?

bool ticTacToe::checkmove()
{
}

[lucyfersdaddy]

sorry... I should have posted what I had as well...
Yes. I had this code, but with all the board pieces.

bool ticTacToe::checkmove()
{
    if (board[0][0] == player)
        return true;
    else 
        return false;
}

[lucyfersdaddy]

Nevermind. I tried another method without having a separate function. It works like I want/need it to.

Thought I was required to have a separate function, I did not.