// Guess six numbers compared to six hidden random numbers ... try for smallest difference
// R.Metcalfe May, 2013

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class GuessingGame extends JFrame implements ActionListener  {

 int best = -1;
 JPanel row1 = new JPanel();

 JPanel row2 = new JPanel();
 JLabel guessesLabel = new JLabel("Guesses: ", JLabel.RIGHT);
 JTextField[] guesses = new JTextField[6];
 JLabel versusLabel = new JLabel("Versus: ", JLabel.RIGHT);
 JTextField[] versus = new JTextField[6];

 JPanel row3 = new JPanel();
 JButton stop = new JButton("Stop");
 JButton check = new JButton("Check");
 JButton reset = new JButton("Reset");

 public void actionPerformed(ActionEvent e) {
        int diff = 0;
        if (e.getSource() == this.check) {
          for (int i = 0; i < 6; i++) {
           diff += Math.abs(Integer.parseInt("0" + guesses[i].getText()) - Integer.parseInt(versus[i].getText()));
           versus[i].setVisible(true);
          }
          if (best < 0) {
            JOptionPane.showMessageDialog(
                    this.check, Integer.toString(diff) + " ... is best score so far");
            best = diff;
          } else if (diff < best) {
            JOptionPane.showMessageDialog(
                    this.check, Integer.toString(diff) + " ... is best score so far, better than " + Integer.toString(best));
            best = diff;
          } else {
            JOptionPane.showMessageDialog(
                    this.check, Integer.toString(diff) + " ... is not as good as your best score of " + Integer.toString(best));
          }
          stop.setEnabled(true);
          check.setEnabled(false);
        } else if (e.getSource() == this.reset) {
          for (int ii = 0; ii < 6; ii++) {
           guesses[ii].setText(  "" );
           versus[ii].setVisible(false);
           versus[ii].setText(  Integer.toString((int)(Math.random() * (9 - 1) + 1))  );
          }
          check.setEnabled(true);
        } else if (e.getSource() == this.stop) {
		  setVisible(false); //you can't see me!
		  dispose(); //Destroy the JFrame object
        }
 }  

 public GuessingGame() {
  super("Guessing Game (guesses from 1 to 9)");

  setSize(550, 270);
  setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  GridLayout layout = new GridLayout(5, 1, 10, 10);
  setLayout(layout);

  FlowLayout layout1 = new FlowLayout(FlowLayout.CENTER, 10, 10);
  row1.setLayout(layout1);
  add(row1);

  GridLayout layout2 = new GridLayout(2, 7, 10, 2);
  row2.setLayout(layout2);
  row2.add(guessesLabel);
  for (int i = 0; i < 6; i++) {
   guesses[i] = new JTextField();
   row2.add(guesses[i]);
  }
  row2.add(versusLabel);
  for (int i = 0; i < 6; i++) {
   versus[i] = new JTextField( Integer.toString((int)(Math.random() * (9 - 1) + 1)) );
   versus[i].setEditable(false);
   versus[i].setVisible(false);
   row2.add(versus[i]);
  }
  add(row2);

  FlowLayout layout3 = new FlowLayout(FlowLayout.CENTER, 10, 10);
  row3.setLayout(layout3);
  stop.setEnabled(false);
  row3.add(stop);
  row3.add(check);
  row3.add(reset);
  add(row3);

  stop.addActionListener(this);
  check.addActionListener(this);
  reset.addActionListener(this);
  setVisible(true);
 }


 public static void main(String[] arguments) {
  GuessingGame frame = new GuessingGame();
 }
}