the HYPE Framework / Joshua Davis

import hype.*;
import hype.extended.behavior.HFollow;

HFollow mf;
HRect  rect;

void setup() {
 size(640,640);
 H.init(this).background(#242424);
 
 rect = new HRect(100);
 rect.rounding(40).noStroke().fill(#ECECEC).loc(width/2,height/2).anchorAt(H.CENTER).rotation(45);
 H.add(rect);

 // HFollow / ease and spring

 mf = new HFollow().target(rect).ease(0.1).spring(0.95);
}

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