y1 = 300;

​

function setup() {

  createCanvas(800, 800);

  background(197, 237, 216);

  r = random(100, 800);

  noFill();

  line(0, 700, 800, 700);

}

​

function draw() {

​

  translate(width / 2, height / 2);

  stroke(random(0, 255));

  var radius = r;

  var angle = TAU / 100;

  var x = cos(angle * i) * radius;

  var y = sin(angle * i) * radius;

  i = i + 0.1;

  ellipse(0, y1, x, y);

  y1 = y1 - 1;

  if (y1 < -450) {

    noLoop();

  }

​

}