the HYPE Framework / Joshua Davis

import hype.*;
import hype.extended.behavior.HSwarm;
import hype.extended.behavior.HTimer;
import hype.extended.colorist.HColorPool;

HSwarm    swarm;
HDrawablePool pool;
HTimer    timer;

void setup() {
 size(640,640);
 H.init(this).background(#242424).autoClear(false);

 swarm = new HSwarm()
  .addGoal(H.mouse())
  .speed(5)
  .turnEase(0.05f)
  .twitch(20)
 ;

 pool = new HDrawablePool(40);
 pool.autoAddToStage()
  .add(new HRect().rounding(4))
  .colorist(new HColorPool(#FFFFFF, #F7F7F7, #ECECEC, #333333, #0095a8, #00616f, #FF3300, #FF6600).fillOnly())
  .onCreate(
   new HCallback() {
    public void run(Object obj) {
     HDrawable d = (HDrawable) obj;
     d
      .strokeWeight(2)
      .stroke(#000000, 100)
      .size((int)random(10,20), (int)random(2,6) )
      .loc(width/2, height/2)
      .anchorAt(H.CENTER)
     ;

     swarm.addTarget(d);
    }
   }
  )
 ;

 timer = new HTimer()
  .numCycles( pool.numActive() )
  .interval(250)
  .callback(
   new HCallback() {
    public void run(Object obj) {
     pool.request();
    }
   }
  )
 ;
}

void draw() {
 H.drawStage();
}