var rate;

var r = 180;

var inc = 0;

​

function setup(){

  createCanvas(400, 400);

  pixelDensity(1);

  rate = 2;

  frameRate(120);

}

​

function draw(){

  if(inc <= points){

    inc += 1;

    frameRate(120);

  }else{

    rate++;

    inc = 0;

  }

  //A replacement for delay method in processing.

  if(inc == points){

    frameRate(1);

  }

  background(0);

  stroke(255);

  fill(0);

  translate(width/2, height/2);

  strokeWeight(1);

  ellipse(0, 0 , r * 2, r * 2);

  for(var i = 0; i < inc; i++){

    var x = cos(i * TWO_PI/points) * r;

    var y = sin(i * TWO_PI/points) * r;

​

    var xa = cos(i*rate * TWO_PI/points) * r;

    var ya = sin(i*rate * TWO_PI/points) * r;

    stroke(200, 0, 40);

    line(x, y, xa, ya);

  }

}