class Stars {
  float x;
  float y;
  float w;
  color col;
  float yspeed;

  
  Stars() {
    this.x = random(width);
    this.y = random(height);
    this.w = random(2);
    this.col = color(255, 255, 255);
    this.yspeed = random(1,15);
    
  }
  
  void move() {
  y += yspeed;
  if (y>height){
  y= random(-w*4004);
  }
  }
  
  void paint() {
    ellipseMode(CENTER);
    stroke(col);
    fill(col);
    ellipse(x, y, w, w);
    
  }
}