float rot;

void setup() {
  size(400,400);
  ellipseMode(CENTER_DIAMETER);
  rectMode(CENTER_DIAMETER);
}

void loop() {
   background(100,0,0);
   
   fill(255);
   noStroke();

   push();
   translate(width/2,height/2);
   rot+=radians(3);
   
   push();
   rotate(rot);
   rect(0,0, 20,20);
   ellipse(100,0, 20,20);
   pop();
   
   push();
   rotate(radians(30));
   ellipse(0,-100, 10,10);
   
   rotate(radians(30));
   ellipse(0,-100, 10,10);

   rotate(radians(30));
   ellipse(0,-100, 10,10);
   pop();
   
   push();
   translate(-150,-150);
   
   rotate(rot);
   rect(0,0, 50,50);
   pop();
   pop();
   
   fill(255,200,0);
   ellipse(0,0, 50,50);
}