​

let xoff = 0;

​

function setup() {

  createCanvas(400, 400);

}

​

function draw() {  

  background(51);  

  // let x = map(random(), 0, 1, 0, width);

  let x = map(noise(xoff), 0, 1, 0, width);  

  xoff += 0.02;  

  ellipse(x, 200, 20, 20);  

}