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< > BotCompany Repo | #1000541 // Magnets

JavaX source code [tags: use-pretranspiled] - run with: x30.jar

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!636
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import java.awt.*;
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import java.awt.image.*;
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import javax.imageio.*;
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import static java.lang.Math.*;
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!standard functions
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!image classes
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!FrameWithImages
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!quicknew
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!* ctr
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!721 // thread {
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class P { double x, y; *(double *x, double *y) {} }
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interface Reproducer {
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  public main.Params reproduce(RGBImage original);
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}
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interface ReproducerMaker {
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  public Reproducer make();
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}
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main {
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  static int imageWidth = 200;
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  !include #1000522 // helper functions for image reproduction
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  static double pi = PI;
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  static double rotate_x(P p, double angle) {
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    angle = angle*pi/180;
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    return p.x*cos(angle)-p.y*sin(angle);
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  }
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  static class Magnet extends Params {
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    double cx, cy, angle;
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    RGB col1 = new RGB(Color.black), col2 = new RGB(Color.white);
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    RGB def(double x, double y) {
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      P p = new P(x-cx, y-cy);
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      x = rotate_x(p, -angle);
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      return x < 0 ? col1 : col2;
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    }
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    Magnet copy() {
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      new Magnet p;
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      baseClone(p);
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      p.cx = cx;
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      p.cy = cy;
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      p.angle = angle;
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      p.col1 = col1;
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      p.col2 = col2;
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      return p;
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    }
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    public String toString() {
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      return "M " + formatDouble(cx, 2) + " " + formatDouble(cy, 2) + " " + (int) angle + " " + col1 + " " + col2;
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    }
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    RGBImage render() {
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      int w = originalImage.getWidth(), h = originalImage.getHeight();
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      RGBImage image = new RGBImage(w, h, Color.white);
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      paint(image, this);
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      return image;
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    }
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  }
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  static abstract class Params {
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    RGBImage originalImage;
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    abstract RGBImage render();
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    abstract Params copy();
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    void baseClone(Params p) {
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      p.originalImage = originalImage;
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    }
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    RGBImage rendered;
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    RGBImage getImage() {
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      if (rendered == null)
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        rendered = render();
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      return rendered;
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    }
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    double score = 2.0;
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    double getScore() {
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      if (score == 2.0)
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        score = calcScore();
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      return score;
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    }
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    double calcScore() {
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      return diff(originalImage, getImage());
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    }
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    boolean isBetterThan(Params p) {
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      return getScore() < p.getScore();
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    }
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  }
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  static class SlantedSplit extends Params {
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    double splitPointL, splitPointR;
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    RGB col1, col2;
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    boolean swap;
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    SlantedSplit copy() {
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      SlantedSplit p = new SlantedSplit();
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      baseClone(p);
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      p.splitPointL = splitPointL;
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      p.splitPointR = splitPointR;
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      p.col1 = col1;
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      p.col2 = col2;
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      p.swap = swap;
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      return p;
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    }
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    public String toString() {
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      return (swap ? "SlantedHSplit " : "SlantedVSplit ") + splitPointL + " " + splitPointR + " " + col1 + " " + col2;
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    }
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    RGBImage render() {
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      int w = originalImage.getWidth(), h = originalImage.getHeight();
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      RGBImage image = new RGBImage(w, h, Color.white);
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      slantedSplit(image, this);
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      return image;
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    }
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  }
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  static class RandomMagnet implements Reproducer {
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    int n = -1;
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    public Params reproduce(RGBImage original) {
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      ++n;
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      new Magnet p;
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      p.originalImage = original;
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      p.cx = random();
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      p.cy = random();
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      p.angle = random()*360;
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      if (n % 2 == 0) {
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        p.col1 = randomColor();
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        p.col2 = randomColor();
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      } else {
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        p.col1 = probeRandomPixel(original);
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        p.col2 = probeRandomPixel(original);
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      }
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      return p;
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    }
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  }
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  static class RandomSlantedSplit implements Reproducer {
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    int n = -1;
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    public Params reproduce(RGBImage original) {
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      ++n;
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      SlantedSplit p = new SlantedSplit();
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      p.swap = random(2) == 0;
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      p.originalImage = original;
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      p.splitPointL = random();
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      p.splitPointR = random();
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      if (n % 2 == 0) {
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        p.col1 = randomColor();
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        p.col2 = randomColor();
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      } else {
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        p.col1 = probeRandomPixel(original);
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        p.col2 = probeRandomPixel(original);
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      }
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      return p;
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    }
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  }
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  static class VaryBest implements Reproducer {
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    Reproducer base;
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    Params best;
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    VaryBest(Reproducer base) {
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      this.base = base;
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    }
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    public Params reproduce(RGBImage original) {
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      Params p = base.reproduce(original);
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      if (best == null || p.isBetterThan(best))
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        best = p;
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      Params variation = vary(best);
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      //System.out.println("Best: " + best.getScore() + ", variation: " + variation.getScore());
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      if (variation.isBetterThan(best)) {
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        //System.out.println("Using variation, diff=" + (best.getScore()-variation.getScore()));
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        best = variation;
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      }
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      return best;
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    }
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    Params vary(Params p) {
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      if (p instanceof SlantedSplit) {
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        SlantedSplit n = ((SlantedSplit) p).copy();
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        int s = random(3);
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        if (s == 0)
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          varySplitPoint(n);
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        else if (s == 1)
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          n.col1 = varyColor(n.col1);
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        else
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          n.col2 = varyColor(n.col2);
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        return n;
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      }
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      if (p instanceof Magnet) {
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        Magnet n = ((Magnet) p).copy();
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        int s = random(3);
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        if (s == 0) {
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          s = random(3);
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          if (s == 0)
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            n.cx = varyN(n.cx);
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          else if (s == 1)
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            n.cy = varyN(n.cy);
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          else {
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            //double old = n.angle;
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            n.angle = (n.angle+360+random(-5, 5)) % 360;
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            //System.out.println("angle: " + formatDouble(old, 1) + " -> " + formatDouble(n.angle, 1));
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          }
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        } else if (s == 1)
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          n.col1 = varyColor(n.col1);
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        else
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          n.col2 = varyColor(n.col2);
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        return n;
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      }
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      return null;
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    }
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    void varySplitPoint(SlantedSplit p) {
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      if (random(2) == 0)
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        p.splitPointL = Math.max(0, Math.min(1, p.splitPointL+random(-0.1, 0.1)));
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      else
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        p.splitPointR = Math.max(0, Math.min(1, p.splitPointR+random(-0.1, 0.1)));
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    }
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    double varyN(double x) {
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      return Math.max(0, Math.min(1, x+random(-0.1, 0.1)));
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    }
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    float varyChannel(float x) {
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      return Math.max(0f, Math.min(1f, (float) (x+random(-0.1, 0.1))));
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    }
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    RGB varyColor(RGB rgb) {
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      int s = random(3);
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      if (s == 0)
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        return new RGB(varyChannel(rgb.r), rgb.g, rgb.b);
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      else if (s == 1)
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        return new RGB(rgb.r, varyChannel(rgb.g), rgb.b);
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      else
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        return new RGB(rgb.r, rgb.g, varyChannel(rgb.b));
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    }
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  }
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  static class Gridded extends Params {
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    int w, h;
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    Params[] array;
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    Gridded(int w, int h) {
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      this.w = w;
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      this.h = h;
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      array = new Params[w*h];
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    }
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    Gridded copy() {
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      Gridded p = new Gridded(w, h);
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      baseClone(p);
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      for (int i = 0; i < w*h; i++)
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        p.array[i] = array[i].copy();
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      return p;
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    }
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    public String toString() {
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      StringBuilder buf = new StringBuilder("grid{");
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      for (int i = 0; i < w*h; i++) {
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        if (i != 0)
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          buf.append(", ");
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        buf.append(array[i]);
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      }
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      return buf + "}";
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    }
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    public RGBImage render() {
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      int ow = originalImage.getWidth(), oh = originalImage.getHeight();
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      RGBImage img = new RGBImage(ow, oh, Color.white);
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      for (int y = 0; y < h; y++)
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        for (int x = 0; x < w; x++) {
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          int x1 = x*ow/w, y1 = y*oh/h;
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          int x2 = (x+1)*ow/w, y2 = (y+1)*oh/h;
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          RGBImage part = array[y*w+x].render();
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          main.copy(part, 0, 0, img, x1, y1, part.getWidth(), part.getHeight());
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        }
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      return img;
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    }
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  }
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  static class Grid implements Reproducer {
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    int w, h;
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    Reproducer[] bases;
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    Grid(ReproducerMaker maker, int w, int h) {
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      this.w = w;
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      this.h = h;
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      bases = new Reproducer[w*h];
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      for (int i = 0; i < w*h; i++)
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        bases[i] = maker.make();
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    }
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    RGBImage getGridElement(RGBImage originalImage, int i) {
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      int ow = originalImage.getWidth(), oh = originalImage.getHeight();
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      int y = i / w;
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      int x = i % w;
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      int x1 = x*ow/w, y1 = y*oh/h;
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      int x2 = (x+1)*ow/w, y2 = (y+1)*oh/h;
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      return originalImage.clip(x1, y1, x2-x1, y2-y1);
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    }
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    public Params reproduce(RGBImage original) {
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      Gridded gridded = new Gridded(w, h);
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      gridded.originalImage = original;
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      for (int i = 0; i < w*h; i++) {
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        RGBImage img = getGridElement(original, i);
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        Params p = bases[i].reproduce(img);
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        if (p == null)
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          return null;
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        gridded.array[i] = p;
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      }
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      return gridded;
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    }
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  }
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  static ReproducerMaker baseMaker = new ReproducerMaker() {
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    public Reproducer make() {
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      //return new VaryBest(new RandomSlantedSplit());
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      return new VaryBest(new RandomMagnet());
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    }
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  };
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  // main reproduce function
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  static Reproducer reproducer;
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  static String imageID = "#1000326"; // Bryan Cranston!
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  static RGBImage originalImage;
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  static FrameWithImages fwi;
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  static double zoom = 1;
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  psvm {
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    for (int i = 0; i < args.length; i++) {
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      String arg = args[i];
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      if (isSnippetID(arg))
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        imageID = arg;
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      else if (arg.equals("zoom"))
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        zoom = Double.parseDouble(args[++i]);
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      else if (arg.equals("w") || arg.equals("width")) {
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        String w = args[++i];
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        imageWidth = w.equals("original") ? -1 : Integer.parseInt(w);
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      } else
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        System.out.println("Unknown argument: " + arg);
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    }
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    fwi = new FrameWithImages(1);
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    fwi.hop();
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    thread {
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      originalImage = loadImage(imageID);
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      if (imageWidth < 0)
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        imageWidth = originalImage.getWidth();
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      else
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        originalImage = resizeToWidth(originalImage, imageWidth);
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      fwi.setZoom(zoom);
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      fwi.setInnerSize(originalImage);
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      int gx = originalImage.getWidth()/8, gy = originalImage.getHeight()/8;
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      reproducer = new Grid(baseMaker, gx, gy);
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      reproduceOpenEnd(originalImage);
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    }
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    /*
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    new Magnet m;
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    m.cx = m.cy = 0.5;
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    m.angle = 30;
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    while (true) {
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      m.angle = (m.angle+1) % 360;
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      //System.out.println("Angle: " + m.angle);
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      RGBImage img = new RGBImage(100, 100, Color.gray);
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      paint(img, m);
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      fwi.setImage(0, img);
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    }
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    */
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  }
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  static void reproduceOpenEnd(RGBImage original) {
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    Params best = null;
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    long lastPrint = 0, lastN = 0;
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    for (long ntry = 1; ; ntry++) {
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      long now = System.currentTimeMillis();
399  
      if (now >= lastPrint+1000) {
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        long tps = (ntry-lastN)*1000/(now-lastPrint);
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        lastPrint = now;
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        lastN = ntry;
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        String s = "Try " + ntry + "(" + tps + "/s)";
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        if (best == null)
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          System.out.println(s);
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        else {
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          System.out.println("Best: " + best);
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          System.out.println(s + ", score: " + formatDouble(best.getScore()*100, 3) + "%, structure size: " + structureSize(best, Params.class));
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        }
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      }
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      Params p = reproducer.reproduce(original);
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      if (best == null || p != null && p.getScore() < best.getScore()) {
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        //System.out.println("New best! " + p.getScore());
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        best = p;
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        fwi.setImage(0, p.getImage());
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      }
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      if (p != null && p.getScore() == 0.0)
419  
        break;
420  
    }
421  
  }
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  static void paint(RGBImage img, Magnet m) {
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    int w = img.getWidth(), h = img.getHeight();
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    for (int y = 0; y < h; y++)
426  
      for (int x = 0; x < w; x++) {
427  
        double nx = x/(double)(w-1);
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        double ny = y/(double)(h-1);
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        img.setPixel(x, y, m.def(nx, ny));
430  
      }
431  
  }
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  static void slantedSplit(RGBImage img, SlantedSplit p) {
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    int w = img.getWidth(), h = img.getHeight();
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    for (int yy = 0; yy < h; yy++)
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      for (int xx = 0; xx < w; xx++) {
437  
        double x = ((double) xx)/(w-1);
438  
        double y = ((double) yy)/(h-1);
439  
        if (p.swap) {
440  
          double temp = x; x = y; y = x;
441  
        }
442  
        double splitPoint = mix(p.splitPointL, p.splitPointR, x);
443  
        RGB col = y <= splitPoint ? p.col1 : p.col2;
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        img.setPixel(xx, yy, col);
445  
      }
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  }
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}

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Snippet ID: #1000541
Snippet name: Magnets
Eternal ID of this version: #1000541/1
Text MD5: 66d2c6768f5aa7ea4551cfc04b36a020
Transpilation MD5: b4efe870ebabf77f0d2a98e80e12e58f
Author: stefan
Category:
Type: JavaX source code
Public (visible to everyone): Yes
Archived (hidden from active list): No
Created/modified: 2015-08-14 13:56:21
Source code size: 12324 bytes / 447 lines
Pitched / IR pitched: No / Yes
Views / Downloads: 779 / 885
Referenced in: [show references]