​

function setup() {

  createCanvas(400, 400);

  background(66); 

  stroke(random(255),random(255),random(255));

  strokeWeight(0.5);

  noFill();

  for(let i = 401; i < 600; i+=5){

    circle(200,200,i)

  }

}

​

function draw() {

  noFill();

  noFill();

  stroke(radd*100, 5);

  circle(200,200,sin(radd)*400);

  circle(200,200,cos(radd)*300);

  circle(200,100,cos(radd)*100);

  circle(200,300,sin(radd)*100);

  radd += 0.001;

}