​

function setup() {

  createCanvas(400, 400);

}

​

function Firework(x,y){

  this.r = 255;

  this.g = 0;

  this.b = 0;

  this.pos = createVector(x,y);

  this.vel = createVector(0,random(-5,-10))//random(-10,-5)

  this.timeMax = random(30);

  this.time = 0;

  this.show = function() {

    strokeWeight(5);

    if (this.time <= this.timeMax){

      stroke(this.r,this.g,this.b);

      point(this.pos.x,this.pos.y);

      this.pos = this.pos.add(this.vel);

      this.time++;

      this.g += random(20);

    }//else{

      //for(i = 0; i < 10; i ++;)

    //}

  }

}

​

function mousePressed(){

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

}

​

function draw() {  

  background(0);

  for(i = 0; i < 410; i +=random(10)){

    fireworks.push(new Firework(i,400));

  }

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

      var firework = fireworks[i];

      firework.show();

    }

}