import java.awt.*;
import java.awt.event.*;
import java.util.Date;
import physics2D.*;

class Pool extends Frame implements KeyListener, MouseListener, WindowListener {

   public static void main(String[] args)
   {
      Pool poolGame = new Pool();
   }

   // --------------------------------------------------------------------------------
   //   Data Members
   // --------------------------------------------------------------------------------

   private PoolTable table;
   private Insets insets;
   private int windowWidth = 800, windowHeight = 600,
               increment = 1, maxIncrement = 100,
               gameWidth, gameHeight;
   private boolean loop;
   private Graphics2D graphics2D;
   private Date startTime, endTime;

   // --------------------------------------------------------------------------------
   //   Constructor
   // --------------------------------------------------------------------------------

   public Pool() {

      // call parent constructor
      super("Pool v0.000000001");

      // set frame properties
      insets = getInsets();
      gameWidth = windowWidth - insets.left - insets.right;
      gameHeight = windowHeight - insets.top - insets.bottom;
      setSize(windowWidth, windowHeight);
      setResizable(false);
      Toolkit toolkit = Toolkit.getDefaultToolkit();
      int xLocation = (toolkit.getScreenSize().width - windowWidth) / 2;
      int yLocation = (toolkit.getScreenSize().height - windowHeight) / 2;
      setLocation(xLocation,yLocation);
      setBackground(Color.black);
      show();
      graphics2D = (Graphics2D) getGraphics();
      validate();
      reset();

      // regester this frame as its own key and window listener
      addWindowListener(this);
      addKeyListener(this);

      // start infinate loop
      startTime = new Date();
      run();

   }

   // --------------------------------------------------------------------------------
   //   Methods
   // --------------------------------------------------------------------------------

   public void run() {
      loop = true;
      while (true)
      while (loop)
      {
         table.advanceTime(increment);
         graphics2D.drawImage(table.getImage(), insets.left, insets.top, this);
         endTime = new Date();
         System.out.println(increment + " " + (int) (endTime.getTime() - startTime.getTime()));
         increment = (int) (increment + endTime.getTime() - startTime.getTime()) / 2;
         if (increment > maxIncrement) {
            increment = maxIncrement;
         }
         startTime.setTime(endTime.getTime());
      }
   }

   private void reset() {
      table = new PoolTable(gameWidth, gameHeight, createImage(gameWidth, gameHeight));
   }

   // implementation of mouse listener
   public void mouseClicked(MouseEvent event) {}
   public void mouseEntered(MouseEvent event) {}
   public void mouseExited(MouseEvent event) {}
   public void mousePressed(MouseEvent event) {}
   public void mouseReleased(MouseEvent event) {}

   // implementation of key listener
   public void keyTyped(KeyEvent event) {}

   public void keyReleased(KeyEvent event) {}

   public void keyPressed(KeyEvent event) {}

   // implementation of window listener to activate close button
   public void windowClosing(WindowEvent event) {
      loop = false;
      dispose();
      System.exit(0);
   }
   public void windowActivated(WindowEvent event) {}
   public void windowClosed(WindowEvent event) {}
   public void windowDeactivated(WindowEvent event) {}
   public void windowDeiconified(WindowEvent event) {}
   public void windowIconified(WindowEvent event) {}
   public void windowOpened(WindowEvent event) {}

}