ex18

int step=2;

void setup() {
  size(800, 450);
  colorMode(HSB,360,100,100);
  createStuff();
}

void draw() {
}

void keyPressed() {
  save(random(123)+".jpg");
}

void mouseReleased() {
  createStuff();
}

void createStuff() {
  float sx = random(10000);
  float sy = random(10000);

  float xOff = sx;
  for (int x=0; x<width; x+=step) {
    float yOff = sy;
    for (int y=0; y<height; y+=step) {
      int col = (int) map(noise(xOff, yOff), 0, 1, 0,360);
      fill(col,90,90);
      noStroke();
      rect(x, y, step, step);
      yOff += 0.005;
    }
    xOff += 0.005;
  }
}