// http://codingtra.in

// https://youtu.be/CKeyIbT3vXI

​

const fireworks = [];

let gravity;

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  colorMode(HSB);

  gravity = createVector(0, 0.2);

  stroke(255);

  strokeWeight(4);

  background(0);

}

​

function draw() {

  colorMode(RGB);

  background(0, 0, 0, 25);

  if (random(1) < 0.04) {

    fireworks.push(new Firework());

  }

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

    fireworks[i].update();

    fireworks[i].show();

    if (fireworks[i].done()) {

      fireworks.splice(i, 1);

    }

  }

}