220112b

const w = 720;

const N = 5000;

​

const maxRadius = w/8;

const minRadius = w/256;

​

function setup() {

  createCanvas(w, w);

  pixelDensity(1);

  colorMode(HSB);

  noLoop();

  ellipseMode(RADIUS);

  noStroke();

  background(rand_color());

​

  let circles = [];

  for(let l=0;l<N;l++){

    let nr = maxRadius;

    let nx = random(width);

    let ny = random(height);

    let d = maxRadius;

    let flag = true;

    for(let i=0;i<circles.length;i++){

      d = dist(nx, ny, circles[i].x, circles[i].y);

      if(d > circles[i].size){

        if(d - circles[i].size < nr){

          nr = d - circles[i].size;

          flag = true;

        }

      }

      else{

        flag = false;

        break;

      }

    }

    let size_check = (nx + nr < width) && (nx - nr >0) &&

                     (ny + nr < height) && (ny - nr >0);

    if((l==0 || flag) && nr > minRadius && size_check){

      circles.push(new Circle(nx, ny, nr));

    }

  }

​

  for(let i=0;i<circles.length;i++){

    circles[i].draw();

  }

}

​

class Circle{

  constructor(x, y, size){

    this.x = x;

    this.y = y;

    this.size = size;

  }

​

  draw(){

    push();

    translate(this.x, this.y);

    rotate(random(TAU));

    let n = int(random(1,9));

    let p = random([3,4,5,6,64])

    for(let i=0;i<n;i++){

      fill(rand_color());

      Polygon(0, 0, this.size/n*(n-i), p);

    }

    pop();

  }

}

​

function rand_color(){

  return color(random(["#227c9d", "#17c3b2", "#ffcb77", "#fef9ef", "#fe6d73"]));

}

​

function Polygon(x, y, size, pointNum){

   const Radius = size;

   const angleStep = 2*PI/pointNum ;

   let angle = 0;

   beginShape();

   for(let i=0;i<=pointNum;i=i+1){

      let px = x + Radius*cos(angle);

      let py = y + Radius*sin(angle);

      vertex(px, py);

      angle = angle + angleStep;

   }

   endShape(CLOSE);

}

​

//save PNG

function keyPressed() {

  save("img_" + month() + day() + hour() + minute() + second() + ".png");

}