// Daniel Shiffman

// http://natureofcode.com

​

let particles = [];

let speedSlider;

​

function setup() {

  createCanvas(640, 360);

  for (let i = 0; i < 100; i++) {

    particles[i] = new Particle(random(width),random(height));

  }

  speedSlider = createSlider(1, 15, 5);

}

​

function draw() {

  background(0);

  for (let i = 0; i < particles.length; i++) {

    let p = particles[i];

    if (mouseIsPressed) {

      p.seek(mouseX, mouseY);

    }

    p.update();

    p.display();

  }

}