constructor(x, y, n, startAngle) {

    this.x = x;

    this.y = y

    this.n = n;

    this.pack = [];

    this.packr = 150;

    this.angle = 180/this.n;

    this.startAngle = startAngle;

    this.createCircle();

  }

  createCircle(){

    let scl = 0.1;

​

    for (let i=0; i<this.n; i++){

      this.pack[i] = new Circle(this.x + this.packr*cos(this.startAngle + i*this.angle), this.y + this.packr*sin(this.startAngle + i*this.angle), (i+1)*scl*25, 0.5);

    }

  }

  displayPack() {

    for (let i=0; i<this.n; i++){

      this.pack[i].display();

      this.pack[i].move(0, 30);

    }

  }

  move(speed) {

    this.startAngle += speed;

    for (let i=0; i<this.n; i++){

      this.pack[i].x = this.x + this.packr*cos(this.startAngle + i*this.angle);

      this.pack[i].y = this.y + this.packr*sin(this.startAngle + i*this.angle);

    }

  }

}