Moon.pde

class Moon extends Planet {
  Moon(PVector position, float size, PVector velocity, float mass, color planetColor) {
    super(position, size, velocity, mass, planetColor, false);
  }

  void drawPlanet() {
    pushMatrix();
    translate(location.x, location.y);
    fill(planetColor);
    circle(0, 0, size);
    popMatrix();
  }
}