/* This program will only work with figure.class  */

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

public class figs extends JFrame
{
  public Graphics brush;
  public Graphics display;
  private    Image canvas;    // off-screen graphics buffer
  private Color bkcolor = Color.white;

  public void paint(Graphics g) {}  // overrides auto-update

  public static void main(String[] args) // needed for application
  {
    figs session  = new figs();
    session.addWindowListener(new WindowAdapter() {
              public void windowClosing(WindowEvent e) {System.exit(0);} });
    session.init();
  }

   public void init()
    {
       setBounds(0,0,800,600);
       show();
       canvas = createImage(800,600);
       brush = canvas.getGraphics();
       display = this.getGraphics();
       brush.setColor(bkcolor);   // clear 
       brush.fillRect(0,0,800,600);   // with black background
       brush.setColor(Color.green);   // 
       animate();
    } // init

   public int randint(int min, int max) 
    { return (int) (Math.random() * (max-min+1) + min); }

   public void clearbuffer()
    { Color old;
      old = brush.getColor();
      brush.setColor(bkcolor);   // clear 
      brush.fillRect(0,0,800,600);   // with black background
      brush.setColor(old);   //  restores color
    } // clearbuffer

   public void nextframe(int delay) // delay in ms
    {
       try { Thread.sleep(delay); } catch (InterruptedException IE) {}
       display.drawImage(canvas,0,0,null);  // draws to screen
       clearbuffer();
    } // nextframe with ms delay



   public void animate()
    {
       figure fig1 = new figure(400,300,this);


       /* ****  YOUR CODE GOES HERE ... **** */


    } // animate

} // class figs