let gravity;

​

function setup() {

    createCanvas(400, 400);

    gravity = createVector(0, 0.2);

    background(0);

}

​

function draw() {

    colorMode(RGB);

    background(0, 25);

    if (random(1) < 0.05) {

        fireworks.push(new Firework());

    }

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

        fireworks[i].update();

        fireworks[i].show();

        if(fireworks[i].exploded && fireworks[i].particles.length == 0){

           fireworks.splice(i,1);   

        }

    }

    console.log(fireworks.length);

}

​