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Author: BurntPizza (posted 2014-06-27 01:34:08, viewed 75 times)

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import java.awt.*;
import java.awt.event.*;
import java.util.Random;

import javax.swing.*;

@SuppressWarnings("serial")
public class Attraction extends JPanel implements MouseListener {
   
   static final int UPDATES_PER_FRAME = 50;
   
   DeJongAttractor current;
   
   Color paintColor;
   
   boolean refresh;
   Random r;
   
   {
      setSize(800, 600);
      setPreferredSize(getSize());
      setOpaque(true);
      setBackground(new Color(200, 200, 200));
      addMouseListener(this);
      
      paintColor = new Color(0, 0, 0, 20);
      current = new DeJongAttractor(1.4, -2.3, 2.4, 2.1);
      
      r = new Random();
   }
   
   @Override
   public void paint(Graphics g) {
      if (refresh) {
         g.clearRect(0, 0, getWidth(), getHeight());
         refresh = false;
      }
      g.setColor(paintColor);
      final int w4 = getWidth() / 4;
      final int h4 = getHeight() / 4;
      for (int i = 0; i < UPDATES_PER_FRAME; i++) {
         int x = (int) Math.round(current.x * (w4 - 20)) + w4 * 2;
         int y = (int) Math.round(current.y * (h4 - 20)) + h4 * 2;
         g.drawLine(x, y, x, y);
         current.update();
      }
      repaint();
   }
   
   public static void main(String[] a) {
      JFrame frame = new JFrame();
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.add(new Attraction());
      frame.pack();
      Dimension ss = Toolkit.getDefaultToolkit().getScreenSize();
      frame.setLocation(ss.width / 2 - frame.getWidth() / 2, ss.height / 2 - frame.getHeight() / 2);
      frame.setVisible(true);
   }
   
   @Override
   public void mousePressed(MouseEvent e) {
      current = rand();
      refresh = true;
   }
   
   private DeJongAttractor rand() {
      return new DeJongAttractor(r.nextDouble() * 3, r.nextDouble() * 3, r.nextDouble() * 3, r.nextDouble() * 3);
   }
   
   @Override
   public void mouseClicked(MouseEvent e) {
   }
   
   @Override
   public void mouseReleased(MouseEvent e) {
   }
   
   @Override
   public void mouseEntered(MouseEvent e) {
   }
   
   @Override
   public void mouseExited(MouseEvent e) {
   }
}

class DeJongAttractor {
   
   final double a, b, c, d;
   double x, y;
   
   DeJongAttractor(double a, double b, double c, double d) {
      this.a = a;
      this.b = b;
      this.c = c;
      this.d = d;
   }
   
   void update() {
      x = Math.sin(a * y) - Math.cos(b * x);
      y = Math.sin(c * x) - Math.cos(d * y);
   }
}





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Add your game by posting it in the WIP section,
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The first screenshot will be displayed as a thumbnail.

rwatson462 (32 views)
2014-12-15 09:26:44

Mr.CodeIt (23 views)
2014-12-14 19:50:38

BurntPizza (50 views)
2014-12-09 22:41:13

BurntPizza (84 views)
2014-12-08 04:46:31

JscottyBieshaar (45 views)
2014-12-05 12:39:02

SHC (59 views)
2014-12-03 16:27:13

CopyableCougar4 (58 views)
2014-11-29 21:32:03

toopeicgaming1999 (123 views)
2014-11-26 15:22:04

toopeicgaming1999 (114 views)
2014-11-26 15:20:36

toopeicgaming1999 (32 views)
2014-11-26 15:20:08
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