​

function setup() {

  createCanvas(400, 400);

  strokeWeight(10);

  stroke(255,255,255);

}

​

​

function Firework(x,y){

  this.pos = createVector(x,y);

  this.show = function(){

    point(this.pos.x,this.pos.y);

    this.pos = this.pos.add(createVector(0,-1));

  }

}

​

function mousePressed(){

  fireworks.push(new Firework(mouseX,mouseY));

}

​

function draw() {  

  background(0);

  for (var i = 0; i < fireworks.length; i++) {

      var firework = fireworks[i];

      firework.show();

    }

}