/** This is the Driver file for the Tic Tac Toe game.  Let's play!
 *  (but this program contains a little mistake somewhere)
 */
import java.io.*;
import java.util.*;

public class Driver
{
  public static void main (String [] args) throws IOException
  {
    BufferedReader kbd = new BufferedReader(new InputStreamReader(System.in));

    char player = 'X';
    TicTacToe game = new TicTacToe();

    // The logic of the game is contained in this loop.  The loop continues
    // until the game is over (winner or tie).
    while (true)
    {
      // Show board and ask where the player wants to place a token.
      System.out.println(game);
      System.out.println("Okay, player " + player + ", it's your turn.");

      // need a little loop to make sure input is valid
      boolean validInput = false;
      while(! validInput)
      {
        System.out.print ("enter row & column numbers (in range 1-3):  ");
        String input = kbd.readLine();
        StringTokenizer tok = new StringTokenizer(input, ", ");
        int row = Integer.parseInt(tok.nextToken());
        int col = Integer.parseInt(tok.nextToken());

        // place the token
        validInput = game.set(row, col, player);
      }

      // see if somebody won -- the findWinner() function will return either
      // T (for tie), or ' ' (for no winner yet), or X or O.
      char result = game.findWinner();
      System.out.println("win check says '" + result + "'");
      if (result == 'T')
      {
        System.out.println(game);
        System.out.println("Cat's game.");
        break;
      }
      else if (result != ' ')
      {
        System.out.println(game);
        System.out.println("Congratulations -- " + player + " is the winner!");
        break;
      }

      // otherwise we keep going -- players take turns
      if (player == 'X')
        player = 'O';
      else
        player = 'X';
    }
  }
}