let growAmount= 1

let grow = true

function setup() {

  createCanvas(600, 600);

}

​

function draw() {

  background(0);

  //translate(300,300);

//scale(0.5);

 rect(100,25,700,150,90,);

  rect(500,150,100,450,);

  ellipse(350,550,450,s);

  noStroke(0);

  if (s > 350) {

    grow = false

  }

  if (s < 0) {

    grow = true

  }

    if (grow == true) {

    s+= growAmount

  } else {

    s -= growAmount

  }

​

}