let center_y;

let all_stars = [];

​

function setup() {

  createCanvas(700, 700);

  background(0);

  center_x = width/2;

  center_y = height/2;

  for (let i = 0; i < 100; i++) {

    let star = new Star();

    all_stars[i] = star;

  }

  for (let i = 0; i < all_stars.length; i++) {

    all_stars[i].show();

  }

  angleMode(DEGREES);

}

​

function draw() {

  for (let i = 0; i < all_stars.length; i++) {

    let current_star = all_stars[i];

    current_star.xpos = center_x + current_star.radius * cos(current_star.angle);

    current_star.ypos = center_y + current_star.radius * sin(current_star.angle);

    current_star.show();

    current_star.angle += 0.1;

  }

}

​

class Star {

  constructor() {

    this.radius = random(width/2);

    this.xpos = center_x + random(-this.radius, this.radius)*1;

    this.ypos = center_y + random(-this.radius, this.radius)*2;

    this.angle = abs((center_y - this.ypos)/(center_x - this.xpos));

  }

  show() {

    //let clr = color(random(100, 255), random(100, 255), random(100, 255));

    fill("yellow");

    circle(this.xpos, this.ypos, random(1, 6));

  }

}