var col = 255;

function setup() {

  createCanvas(710, 400);

  background(0);

​

  // Create objects

  for (var i=0; i<100; i++) {

    bugs.push(new Jitter());

  }

}

​

​

function draw() {

  // if (frameCount % 300 ==0){

  //    col = 0;

  // } 

  fill(col);

​

​

  for (var j=0; j<bugs.length; j++) {

    bugs[j].move();

    bugs[j].display();

  }

}

function Jitter() {

  this.x = width/2;

  this.y = 0;

  this.diameter = 10;

  this.speedx = random(-5,5);

  this.speedy = random(8);

    this.a = 255;

  this.move = function() {   

    this.x += random(0.5*this.speedx,2*this.speedx);

    this.y += random(0.2*this.speedy,1.2*this.speedy);

    this.speedx = 0.999*this.speedx;

    this.speedy = 0.999*this.speedy;

​

  };

​

  this.display = function() {

    noStroke();

  //    if (frameCount % 300 ==0){

  //    col = 0;

  // } 

  this.a -= 2;

  fill(col,this.a);

    ellipse(this.x, this.y, this.diameter, this.diameter);

  };

​

}