​

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  for(let i = 0; i < 50; i++){

    const newBall = new Ball(random(-50,windowWidth), random(-150,0),random(10,30),random(4));

    balls.push(newBall);

  }

}

​

class Ball {

  constructor(x,y,wh,speed){

  this.x = x;

  this.y = y;

  this.wh = wh;

  this.speed = speed;

  }

  start() {

    circle(this.x, this.y, this.wh);

  }

  move(){

    if(this.y <windowHeight) { this.y+=this.speed}else{this.y = random(-100,0)}

  }

};

​

function draw() {

  background(220,0);

  balls.map(b => {

    b.start();

    b.move();

  })

}