// http://codingtra.in

// http://patreon.com/codingtrain

// Code for this video: https://youtu.be/Cl_Gjj80gPE

​

var yoff = 0.0;

​

let t = 0;

​

function setup() {

  createCanvas(400, 400);

}

​

function draw() {

  background(0);

​

  translate(width / 2, height / 2);

​

  var radius = 150;

  stroke(255);

  strokeWeight(1);

  noFill();

​

  beginShape();

  var xoff = 0;

  for (var a = 0; a < TWO_PI; a += 0.05) {

    var offset = 20*sin(a*4 + t) + noise(xoff,yoff)*100;

    var r = radius + offset;

    var x = r * cos(a);

    var y = r * sin(a);

    line(0,0,x,y);

    point(x,y);

    //vertex(x, y);

    xoff += 0.1;

    //ellipse(x, y, 4, 4);

  }

  endShape(CLOSE);

​

  yoff += 0.01;

  t += 0.05;

}