let x;

let y;

​

function setup() {

  createCanvas(500, 500);

  background(0);

  t = 0;

}

​

function draw() {

  background(0, 50);

  noStroke();

  fill(255);

​

  x = width * noise(t);

​

  y = height * noise(t + 20);

​

  ellipse(x, y, 150, 150);

​

  t += 0.005;

}