ProcessingでGenerative art #80

んっ！フラクタル！んっ！フラクタル！

Code

int count = 30;
float angle;
float colHue;

void setup() {
  size(800, 800);
  pixelDensity(2);
  colorMode(HSB, 360, 100, 100, 100);
  strokeWeight(1);
  noLoop();
}

void draw() {
  background(360, 5, 100);
  for (int i = 0; i < 20; i ++) {
    angle = radians(random(20, 120));
    drawShape(random(width), random(height), random(100, 200), count);
  }
}
void drawShape(float posX, float posY, float radius, int n) {
  float ellipseSize = radius * 0.1;
  float pX = 0, pY = 0;

  pushMatrix();
  translate(posX, posY);
  rotate(angle);
  
  for (float theta = 0; theta <= angle; theta += angle) {
    float x = 0 + radius * cos(theta);
    float y = 0 + radius * sin(theta);
    
    for (int i = 0; i <= radius; i += 2) {
      float shiftX = map(i, 0, radius, x, 0);
      float shiftY = map(i, 0, radius, y, 0);
      float shiftPX = map(i, 0, radius, pX, 0);
      float shiftPY = map(i, 0, radius, pY, 0);
      float colSaturation = map(i, 0, radius, 0, 100);
      fill(colHue, colSaturation, 100);
      triangle(0, 0, shiftX, shiftY, shiftPX, shiftPY);
      noStroke();
    }
    randomHue();
    fill(colHue, 100, 100);
    stroke(0);
    ellipse(x, y, ellipseSize, ellipseSize);

    pX = x;
    pY = y;
  }
  ellipse(0, 0, ellipseSize, ellipseSize);
  n --;
  
  if (n > 0) {
    drawShape(pX, pY, radius* 0.9, n);
  }
  
  popMatrix();
}

void randomHue() {
  if (random(1) > 0.75) colHue = 100;
  else if (random(1) > 0.50) colHue = 314;
  else if (random(1) > 0.25) colHue = 40;
  else colHue = 180;
}

void mousePressed() {
  redraw();
}

void keyPressed() {
  if (key == 's')saveFrame("####.png");

  if (keyCode == UP)count += 1;
  if (keyCode == DOWN)count -= 1;
}

Happy Coding!!