Hi,

2008/2/26 Berke Durak <berke.durak@exalead.com>:
>  Persons, places and objects are things so they inherit from physical.  Hence, a forest is a place that can contain
>  a sword (an object), a dragon (a person) or another place (a small house).  Persons can be contained in places
>  or things (coffins).
>
>  The problem is that the main game loop gets the current location by taking the container of the hero... which is a
>  physical.  However, it needs to call the place-specific method "go".

I too have only read your code briefly, but i would suggest you use
multiple inheritanse. Coffin would inherit from both object and place.
That way the container of the hero is always a place. In fact, that is
the way i would encode it in java too (using interfaces).