let particles = [];

//num of particles 

const num = 4000;

//scale factor for noise

const noiseScale = 0.01/2;

​

function setup() {

  createCanvas(600, 600);

  //create and initialise particle objects

  for (let i = 0; i < num; i++) {

    particles.push(new Point(random(width), random(height)));

  }

​

  clear();

}

​

function draw() {

  background(0, 10);

  stroke('pink');

  //loop through all particles

  for (let i = 0; i < num; i++) {

    let p = particles[i];

    //calling the functions declared 

    p.display();

    p.update();

  }

}

​

function mouseReleased() {

  //seed noise w millisecond value to create variation

  noiseSeed(millis());

}