​

function setup() {

  createCanvas(400, 400);

​

}

​

function mousePressed(){

        bubbles.push(new bubble(mouseX,mouseY));

​

}

​

​

function mouseDragged(){

        bubbles.push(new bubble(mouseX,mouseY));

​

}

​

​

​

function draw() {

  background(220);

  for(i=0;i<bubbles.length;i++){

    bubbles[i].display();

    bubbles[i].move();

  }

​

}

function bubble(xx,yy){

  this.x = xx;

  this.y = yy;

  this.display = function(){

  ellipse(this.x,this.y,10,10);

  }

  this.move = function(){

  this.x = this.x + random(-1,1);

  this.y = this.y + random(-1,1);

  }

}