PixeloMatic.java

import java.awt.*;
import java.applet.*;
import java.awt.image.*;

public class PixeloMatic extends Applet implements Runnable {

    int pixl2[] = new int[256];
    Thread t = null;
    final int width=500, height=500;
    Image buffer = null;
    int pixl1[],pixlook[];
    

    @Override
    public void init() {
        setSize(500, 500);
        int r, g, b, i;
        pixl1 = new int[width * height];
        pixlook = new int[width * height];
        
        for (i = 0; i < 256; i++) {
            r = (int) (128 + 128 * Math.sin(Math.PI * i / 32.0));
            g = (int) (128 + 128 * Math.sin(Math.PI * i / 64.0));
            b = (int) (128 + 128 * Math.sin(Math.PI * i / 128.0));
            pixl2[i] = (255 << 24) | (r << 16) | (g << 8) | b;
        }

        for (r = 0; r < height; r++) {
            for (g = 0; g < width; g++) {
                i = (int) (128 + 128 * Math.sin(r / 16.0) + 128 + 128 * Math.sin(g / 16.0));
                i = i / 2;
                pixlook[g + r * height] = i;
            }
        }
    }

    @Override
    public void start() {
        t = new Thread(this);
        t.start();
    }

    @Override
    public void run() {
        while(true) {
            try {
                repaint();
                Thread.sleep(2);                
            } catch (InterruptedException e) {
            }
        }
    }

    @Override
    public void stop() {
        t = null;
    }

    @Override
    public void paint(Graphics g) {
        update(g);
    }

    @Override
    public void update(Graphics g) {
        int i, x, y, t;
        for (y = 0; y < height; y++) {
            for (x = 0; x < width; x++) {
                t = x + y * height;
                pixl1[t] = pixl2[pixlook[t]];
            }
        }
        buffer = createImage(new MemoryImageSource(width, height, pixl1, 0, width));
        g.drawImage(buffer, 0, 0, this);
        int tmp;
        tmp = pixl2[0];
        for (i = 1; i < 256; i++) {
            pixl2[i - 1] = pixl2[i];
        }
        pixl2[255] = tmp;
    }
}