createCanvas(400, 400);

  background(220);

}

​

let angle=0;

function draw() {

  background(220,12);

  // we will add to the angle with each draw

  angle+=0.1;

  // Note the Rect Mode tells P5 that all

  //   x,y in rectangles is the center, not the

  //   default which is top-left

  rectMode(CENTER);

  push(); // push remembers our origin, scale and rotation setting

  translate(200,200);

  rotate(angle);

  rect(0,0,100);

  rect(100,100,25);

  pop();   // pop brings back the old setting

  rect(300,300,100);

}