How to use DrawableGameComponent in Silverlight + XNA?

Question

I'm making a project to Windows Phone using Silverlight + XNA, but I don't know how I can use the DrawableGameComponent because the constructor requires a Game class, it looks like this:

Planet.cs

class Planet : DrawableGameComponent
{
    public Planet(Game game): base(game){

    {
}

but in my first page of Silverlight and XNA project not is a Game class it's this:

GamePage.xaml.cs

public partial class GamePage : PhoneApplicationPage
{
   ...
}

Where do I find the Game class to pass into the DrawableGameComponent constructor?

Answer 1

Yap, I know, there is no Game object, or GameComponents in a combined Silverlight and XNA application.

I've found another implementations of those classes (such as GameComponent, DrawableGameComponent, IDrawable...) on Microsoft XNA Community Game Platform that I use everytime in Silverlight+XNA, but I don't remember where so I can't give you a link. If you can give me your email I'll send them to you, or I can try to paste the whole 7 classes code here if you prefer.