import java.util.Scanner;

/* Java application that plays a game of Tic-tac-toe.
**
** Author: R. McCloskey
** Date: December 2019
*/

public class PlayTicTacToe {

   public static void main(String[] args) {
      play();
   }

   public static void play() {
      Scanner keyboard = new Scanner(System.in);
      TicTacToeGame game = new TicTacToeGame();
      game.printBoard();
      do {
         System.out.printf("\nEnter location in which to place %c: ", 
                           game.whoseTurnIsIt());
         try {
            String response = keyboard.nextLine();
            Scanner rowColScanner = new Scanner(response);
            int row = rowColScanner.nextInt();
            int col = rowColScanner.nextInt();
            game.markSquare(row, col);
            game.printBoard();
         }
         catch (Exception e) {
            System.out.println(e.getMessage() + "; try again");
         }
      } while (!game.isOver());

      char winner = game.winner();
      if (winner == game.DRAW) 
         { System.out.println("\nGame ends in a draw."); }
      else 
         { System.out.println("\nGame won by " + winner); }
   }

}