module Asteroids
  class GameObject

    def initialize(object_pool)
      @object_pool = object_pool
      @object_pool.objects << self
    end

    def update
    end

    def draw()
    end

    def removable?
      @removable
    end

    def mark_for_removal
      @removable = true
    end

  end
end
Add the game object class.
Add the game object class.

This class will be the parent of all game objects.
Upon initialization the class registers itsel in the
object pool.
