Purpose: Data base holding game objects. Game objects in list are sorted by z-order. Methods: void KillList () - Empties the list (also frees the objects allocated memory). void AddObject (CGameObject *) - Inserts a new game object to list. void RemoveObject (CGameObject *) - Removes the objects from list. CReaction GetGameReaction (CGameObject *) - Iterates over game objects and return the unified reaction to the given game object. int GetObjectsCount () const - Get the number of objects in list. LIST_POS GetHeadPosition () - Return a position object to head of list. CGameObject *GetNext (LIST_POS&) - Gets the object at position and advance the position to next object in list. BOOL IsObjectValid (CGameObject *) - Checks the pointer points to a living object. void Freeze() - Freeze the list from being changed (add || remove) void Thaw() - Undo freeze