Tic-Tac-Toe Game

//Tic-Tac-Toe Game

#include <iostream>
using namespace std;
void display_board();
void player_turn();
bool gameover();
char turn;
bool draw = false;
char board[3][3] = {{'1', '2', '3'}, {'4', '5', '6'}, {'7', '8', '9'}};
int main()
{
cout << "Tic Tac Toe Game\n";
cout << "Player 1 [X] --- Player 2 [O]\n";
turn = 'X';
while (!gameover())
{
display_board();
player_turn();
gameover();
}
if (turn == 'O' && !draw)
{
display_board();
cout << endl << endl << "Player 1 [X] Wins! Game Over!\n";
}
else if (turn == 'X' && !draw)
{
display_board();
cout << endl << endl << "Player 2 [O] Wins! Game Over!\n";
}
else
{
display_board();
cout << endl << endl << "It's a draw! Game Over!\n";
}
}
void display_board()
{
cout << "---------------------" << endl << endl;
cout << " | | " << endl;
cout << " " << board[0][0] << " | " << board[0][1] << " | " << board[0][2] << endl;
cout << "_____|_____|_____" << endl;
cout << " | | " << endl;
cout << " " << board[1][0] << " | " << board[1][1] << " | " << board[1][2] << endl;
cout << "_____|_____|_____" << endl;
cout << " | | " << endl;
cout << " " << board[2][0] << " | " << board[2][1] << " | " << board[2][2] << endl;
cout << " | | " << endl;

}
void player_turn()
{
int choice;
int row = 0, column = 0;
if (turn == 'X')
{
cout << "Player 1 turn [X]: ";
}
else if (turn == 'O')
{
cout << "Player 2 turn [O]: ";
}
cin >> choice;
switch (choice)
{
case 1: row = 0; column = 0; break;
case 2: row = 0; column = 1; break;
case 3: row = 0; column = 2; break;
case 4: row = 1; column = 0; break;
case 5: row = 1; column = 1; break;
case 6: row = 1; column = 2; break;
case 7: row = 2; column = 0; break;
case 8: row = 2; column = 1; break;
case 9: row = 2; column = 2; break;
default:
cout << "You didn't enter a correct number! Try again\n";
player_turn();
}
if (turn == 'X' && board[row][column] != 'X' && board[row][column] != 'O')
{
board[row][column] = 'X';
turn = 'O';
}
else if (turn == 'O' && board[row][column] != 'X' && board[row][column] != 'O')
{
board[row][column] = 'O';
turn = 'X';
}
else
{
cout << "The cell you chose is used! Try again\n";
player_turn();
}
}
bool gameover()
{
for (int i = 0; i < 3; i++)//Check for a win
{
if ((board[i][0] == board[i][1] && board[i][1] == board[i][2]) || (board[0][i] == board[1][i] && board[1][i] == board[2][i]) || (board[0][0] == board[1][1] && board[1][1] == board[2][2]) || (board[0][2] == board[1][1] && board[1][1] == board[2][0]))
{
return true;
}
}
for (int i = 0; i < 3; i++)//Check for draw
{
for (int j = 0; j < 3; j++)
{
if (board[i][j] != 'X' && board[i][j] != 'O')
{
return false;
}
}
}
draw = true;
return true;
}