let gravity;

​

function setup() {

  createCanvas(400, 400);

  // createCanvas(windowWidth, windowHeight);

    gravity = createVector(0,0.2);

    // stroke(255);

    // strokeWeight(2);

}

​

function draw() {

  background(0,0,0,25);

  if(random(1)<0.03){

    let r = random(255);

    let g = random(255);

    let b = random(255);

    fireworks.push(new Firework(r,g,b));

  }

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

        fireworks[i].update();

    fireworks[i].show();

    if(fireworks[i].done()){

        fireworks.splice(i,1);

    }

  }

  // console.log(fireworks.length);

}