+ set_group(COLGROUP_MOVING_STATIC);
+}
+
+Rock::Rock(const lisp::Lisp& reader, std::string spritename)
+ : MovingSprite(reader, spritename)
+{
+ sound_manager->preload(ROCK_SOUND);
+ on_ground = false;
+ grabbed = false;
+ set_group(COLGROUP_MOVING_STATIC);