let y_pos = 0;

let variance = 0.01;

let gain = 200;

​

function setup() {

  createCanvas(400, 400);

  background(255);

}

​

function draw() {

  x_pos = (noise(frameCount*variance)-0.5)*gain;

  y_pos = (noise(frameCount*variance+0.1)-0.5)*gain;

  translate(width/2,height/2);

  noStroke();

  fill(0,5);

  angleMode(DEGREES);

  ellipse(x_pos,y_pos,50,50);

}