On Sun, 5 Oct 1997, Eric Green wrote:
> > Has anyone out there implemented roomprogs/objprogs?
> I implemented room and object progs in Death's Gate. I started from
Very nice. I personally took the hackish solution, like Smaug
(ftp://ftp.game.org/pub/merc/smaug or such) - when an object is to run a
program, a special mob is moved to the room, renamed to be the object and
executes the commands necessary. You can quickly go from mobprogs to
obj/room progs that way. Of course, there are lots of cons.
> I would strongly recommend moving to C++ before starting to implement
> room and object progs. I wish i had done that at the start, and i could
> have avoided passing around everything as void * and using a type variable
> (along with a bit of code duplication).
You could do it in C using magic numbers. See
http://pip.dknet.dk/~erwin/letters/magic.txt for a letter I wrote about
this to the MERC Mailing list. It had to do with act() argument checking,
but I have since expanded it to be used heavily in the mobprogs.
PS: The idea of a dot-notation to access fields of a character/object is
especially nice; I have also implemented something like this, and find it
one of the most interesting additions to mobprogs :)
=============================================================================
Erwin Andreasen Herlev, Denmark <erwin@pip.dknet.dk> UNIX System Programmer
<URL:http://pip.dknet.dk/~erwin/> <*> (not speaking for) DDE
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