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<H1>[MUD-Dev] Re: darkness/visibility</H1>
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<LI><em>To</em>: <A HREF="mailto:mud-dev#kanga,nu">mud-dev#kanga,nu</A></LI>
<LI><em>Subject</em>: [MUD-Dev] Re: darkness/visibility </LI>
<LI><em>From</em>: J C Lawrence <<A HREF="mailto:claw#under,engr.sgi.com">claw#under,engr.sgi.com</A>></LI>
<LI><em>Date</em>: Mon, 22 Jun 1998 15:14:41 -0700</LI>
<LI><em>Reply-To</em>: <A HREF="mailto:mud-dev#kanga,nu">mud-dev#kanga,nu</A></LI>
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<PRE>
On Thu, 11 Jun 1998 15:02:02 +1200 (NZST)
Oliver Jowett<oliver#jowett,manawatu.planet.co.nz> wrote:
> The problem, I think, is one of character memory: if you just turned
> off the light switch, you should know it's there to turn on again
> (at least for a while), barring sadistic puzzles involving moving
> switches.. Conversely, if you just walked into the room, you know
> nothing about a light switch (although searching for one by feel is
> feasible).
> I don't have a good solution for this. Suggestions?
Do the same thing that Infocom did (which maps to the room model well,
but not the coordinate model). You retain two data sets for a
character in a location:
1) What he can see right now.
2) What he has seen shortly before now (eg before the lights went
out).
This can be as simple as a "knows-about" contextual structure hung off
the character's current state. The depth of the context can be quite
brief (only as far as the current room, or longer:
> l
You are in a room. There is a switch on the wall.
> north
You are in a different room.
> south
You are in a room. There is a switch on the wall.
> flip switch
It is very dark.
> north
Ok.
> south
Okay.
> flip switch
You remember where the switch was from the last time you saw this
room, and with a bit of feeling around, flip it. The lights
come back on! You are blind.
You can also extend towards processes of discovery:
> l
You are in a room. There is a switch on the wall.
> flip switch.
It is dark. You hear a grue!
> flip switch
What switch? You can't see anything! You can hear a grue
however.
> feel wall
What wall? I can't see no wall!
> north
Ouch! You walk into a wall.
> feel wall
Its pretty rough, and very flat. Oh! Something sticks out of the
wall at about chest height. It feels like a little stick,
perhaps switch or something at about chest height!
> flip switch
The light comes on. You are blind. A grue screams.
--
J C Lawrence Internet: claw#null,net
(Contractor) Internet: coder#ibm,net
---------(*) Internet: claw#under,engr.sgi.com
...Honourary Member of Clan McFud -- Teamer's Avenging Monolith...
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<LI><STRONG><A NAME="00957" HREF="msg00957.html">[MUD-Dev] darkness/visibility</A></STRONG>
<UL><LI><EM>From:</EM> Oliver Jowett <oliver#jowett,manawatu.planet.co.nz></LI></UL></LI>
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<ul><li>Thread context:
<BLOCKQUOTE><UL>
<LI><STRONG>[MUD-Dev] User Input Parser, was Re: darkness/visibility</STRONG>, <EM>(continued)</EM>
<ul compact>
<ul compact>
<ul compact>
<ul compact>
<LI><strong><A NAME="01051" HREF="msg01051.html">[MUD-Dev] User Input Parser, was Re: darkness/visibility</A></strong>,
Richard Woolcock <a href="mailto:KaVir#dial,pipex.com">KaVir#dial,pipex.com</a>, Mon 15 Jun 1998, 19:32 GMT
</LI>
<LI><strong><A NAME="01126" HREF="msg01126.html">[MUD-Dev] Natural Language Parsing (Was: Re: darkness/visibility)</A></strong>,
s001gmu <a href="mailto:s001gmu#nova,wright.edu">s001gmu#nova,wright.edu</a>, Thu 18 Jun 1998, 18:57 GMT
<UL>
<LI><strong><A NAME="01128" HREF="msg01128.html">[MUD-Dev] Re: Natural Language Parsing (Was: Re: darkness/visibility)</A></strong>,
Adam J. Thornton <a href="mailto:adam#phoenix,Princeton.EDU">adam#phoenix,Princeton.EDU</a>, Thu 18 Jun 1998, 20:57 GMT
<UL>
<LI><strong><A NAME="01129" HREF="msg01129.html">[MUD-Dev] OT: Ack!</A></strong>,
Adam Wiggins <a href="mailto:adam#angel,com">adam#angel,com</a>, Thu 18 Jun 1998, 21:31 GMT
</LI>
</UL>
</LI>
</UL>
</LI>
</ul>
</ul>
</ul>
<LI><strong><A NAME="01160" HREF="msg01160.html">[MUD-Dev] Re: darkness/visibility</A></strong>,
J C Lawrence <a href="mailto:claw#under,engr.sgi.com">claw#under,engr.sgi.com</a>, Mon 22 Jun 1998, 22:14 GMT
</LI>
</ul>
</LI>
<LI><strong><A NAME="00945" HREF="msg00945.html">[MUD-Dev] Telepathy Rules</A></strong>,
Lawrence W. Homer <a href="mailto:afn40452#afn,org">afn40452#afn,org</a>, Wed 10 Jun 1998, 21:38 GMT
<LI><strong><A NAME="00943" HREF="msg00943.html">[MUD-Dev] Re: Analysis and specification - the dirty words of mud development?</A></strong>,
Mike Sellers <a href="mailto:mike#bignetwork,com">mike#bignetwork,com</a>, Wed 10 Jun 1998, 20:46 GMT
<UL>
<li><Possible follow-up(s)><br>
<LI><strong><A NAME="01005" HREF="msg01005.html">[MUD-Dev] Re: Analysis and specification - the dirty words of mud development?</A></strong>,
Greg Munt <a href="mailto:greg#uni-corn,demon.co.uk">greg#uni-corn,demon.co.uk</a>, Fri 12 Jun 1998, 20:42 GMT
<UL>
<LI><strong><A NAME="01008" HREF="msg01008.html">[MUD-Dev] Re: Analysis and specification - the dirty words of mud development?</A></strong>,
Holly Sommer <a href="mailto:hsommer#micro,ti.com">hsommer#micro,ti.com</a>, Fri 12 Jun 1998, 21:06 GMT
</LI>
</UL>
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</UL>
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</UL></BLOCKQUOTE>
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