rad = 0;

​

function setup() {

  createCanvas(800, 800);

  background(245, 243, 240);

  x = random(100, 300);

  hR = random(300, 500);

  xR = random(500, 700);

  yS = 200;

  y = yS;

  yR = random(0.1, 0.4);

  rR = random(0, 255);

  rG = random(0, 255);

  rB = random(0, 255);

  noFill();

}

​

function draw() {

​

  translate(width / 2, height / 2);

   var radius = rad;

  var angle = TAU / 360;

  var x = cos(angle * i) * radius;

  var y = sin(angle * i) * radius;

  i = i + s;

  if (x < -200 || x > 200 || y < -200 || y > 200) {

    stroke(245, 243, 240);

  } else {

    stroke(rR, rG, rB);

  }

  ellipse(x, y, 5);

  if (x == rad) {

    x = random(100, 300);

    rad = rad + 5;

    xR = random(500, 700);

    rR = random(0, 255);

    rG = random(0, 255);

    rB = random(0, 255);

  }

}