[DGD]DGD and Melville

[John West McKenna]

Nightlith writes:

>user.c inherits login.c like always. But I want to also inherit creation.c
>so after a new user is created, it moves on to creating the player.
>creation.c only has the functions neccessary to create a new player and
>that's it. player.c inherits living.c and both have all the stat accessor
>functions. Obviously creation.c needs access to those functions, so I
>thought by putting creation.c in user.c after login.c, it would have access
>to the cloned player object at login. I was wrong, and the error is simply
>an undifined variable error (a variable set in player.c).
>If that makes sense, great. But I haven't slept in 36+ hrs...so I'm kinda

Right - I think I understand what you're doing now.  You've changed things
from the Melville system, and now have:

living ---> player

creation -+-> user
login ----+

user has a variable telling it which player object to use.  The player
object (itself, or inherited from living) has functions to set the
necessary variables.  You want creation to call that function.  But
creation needs to know which player object to call it in.

So far, OK.  Unfortunately, it is impossible for an inherited object to
access the variables of objects that inherit it.   creation is an
independent object, and it doesn't have the player variable (DGD doesn't
know that you'll never use it except in user).  So when it tries to compile
it, it finds you using a variable that doesn't exist, and complains.

Your situation is worse because both login and creation need that variable.
The best solution I can think of is to pass it as a parameter to all
functions that need it.  Or you could define get_player_object() in user.c
and have creation and login call this_object()->get_player_object() every
time they need it.  I'd recommend you don't give them both a private
variable that gets set appropriately by user.  That's just begging to get
them out of sync sometime, and it'd be hell to debug.

John

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