// Daniel Shiffman

// http://natureofcode.com

​

let particles = [];

​

function setup() {

  createCanvas(640, 240);

}

​

function draw() {

  background(255);

  particles.push(new Particle(width / 2, 20));

​

  // Looping through backwards to delete

  for (let i = particles.length - 1; i >= 0; i--) {

    let particle = particles[i];

    particle.run();

    if (particle.isDead()) {

      //remove the particle

      particles.splice(i, 1);

    }

  }

}