Year

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Index

March 1997

Linear Quadtrees Carter T Shock
- Linear Quadtrees gzhang1234@yahoo.com
q-tree stuff Chris Gray
- q-tree stuff Carter T Shock
- - q-tree stuff coder@ibm.net
Issues from the digests and Wout's list Alex Oren
- Issues from the digests and Wout's list coder@ibm.net
- Issues from the digests and Wout's list coder@ibm.net
- Issues from the digests and Wout's list coder@ibm.net
- Issues from the digests and Wout's list clawrenc@cup.hp.com
- - Issues from the digests and Wout's list Nathan Yospe
  - - Issues from the digests and Wout's list Shawn Halpenny
    - - Issues from the digests and Wout's list Nathan Yospe
      - Issues from the digests and Wout's list Shawn Halpenny
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list clawrenc@cup.hp.com
      - Issues from the digests and Wout's list clawrenc@cup.hp.com
      - Issues from the digests and Wout's list Shawn Halpenny
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Shawn Halpenny
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Shawn Halpenny
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Shawn Halpenny
        Issues from the digests and Wout's list clawrenc@cup.hp.com
    - Issues from the digests and Wout's list clawrenc@cup.hp.com
    - - Issues from the digests and Wout's list Adam Wiggins
      - Issues from the digests and Wout's list coder@ibm.net
        Issues from the digests and Wout's list Chris Gray
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Miroslav Silovic
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Miroslav Silovic
        Issues from the digests and Wout's list Jeff Kesselman
        Issues from the digests and Wout's list Caliban Tiresias Darklock
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Caliban Tiresias Darklock
        Issues from the digests and Wout's list Miroslav Silovic
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Caliban Tiresias Darklock
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Caliban Tiresias Darklock
        Issues from the digests and Wout's list coder@ibm.net
        Issues from the digests and Wout's list Miroslav Silovic
        Issues from the digests and Wout's list Jon A. Lambert
        Issues from the digests and Wout's list Ling
    - Issues from the digests and Wout's list Adam Wiggins
    - - Issues from the digests and Wout's list clawrenc@cup.hp.com
      - Issues from the digests and Wout's list Adam Wiggins
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Adam Wiggins
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Adam Wiggins
- Issues from the digests and Wout's list Shawn Halpenny
- - Issues from the digests and Wout's list clawrenc@cup.hp.com
  - - Issues from the digests and Wout's list Nathan Yospe
    - - Issues from the digests and Wout's list clawrenc@cup.hp.com
      - Issues from the digests and Wout's list Shawn Halpenny
    - Issues from the digests and Wout's list Chris Gray
    - - Issues from the digests and Wout's list Ling
      - Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Jeff Kesselman
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Chris Gray
        Issues from the digests and Wout's list Nathan Yospe
        Issues from the digests and Wout's list Shawn Halpenny
        Issues from the digests and Wout's list Jeff Kesselman
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Jeff Kesselman
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Jon A. Lambert
        Issues from the digests and Wout's list Jeff Kesselman
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Jeff Kesselman
        Issues from the digests and Wout's list S001GMU@nova.wright.edu
        Issues from the digests and Wout's list Shawn Halpenny
        Issues from the digests and Wout's list Travis Casey
        Issues from the digests and Wout's list Nathan Yospe
        Issues from the digests and Wout's list Jeff Kesselman
        Issues from the digests and Wout's list Nathan Yospe
        Issues from the digests and Wout's list Jon A. Lambert
        Issues from the digests and Wout's list Adam Wiggins
        Issues from the digests and Wout's list Ling
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Adam Wiggins
        Issues from the digests and Wout's list Adam Wiggins
    - Issues from the digests and Wout's list Orion Henry
    - - Issues from the digests and Wout's list clawrenc@cup.hp.com
  - Issues from the digests and Wout's list Ling
  - - Issues from the digests and Wout's list Shawn Halpenny
    - - Issues from the digests and Wout's list Nathan Yospe
      - Issues from the digests and Wout's list Jeff Kesselman
    - Issues from the digests and Wout's list clawrenc@cup.hp.com
    - - Issues from the digests and Wout's list Chris Gray
      - Issues from the digests and Wout's list Jon A. Lambert
      - Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Jeff Kesselman
        Issues from the digests and Wout's list Jon A. Lambert
        Issues from the digests and Wout's list clawrenc@cup.hp.com
        Issues from the digests and Wout's list Jeff Kesselman
- Issues from the digests and Wout's list Chris Gray
- Issues from the digests and Wout's list Chris Gray
- Issues from the digests and Wout's list Adam Wiggins
- Issues from the digests and Wout's list Jeff Kesselman
ListMail dupes coder@ibm.net
Threads, IO handling, and Event Queues Nathan Yospe
- Threads, IO handling, and Event Queues Chris Gray
- - Threads, IO handling, and Event Queues coder@ibm.net
  - Threads, IO handling, and Event Queues Carter T Shock
  - - Threads, IO handling, and Event Queues Nathan Yospe
    - Threads, IO handling, and Event Queues claw@null.net
- Threads, IO handling, and Event Queues coder@ibm.net
mud grammar (was Just a bit of musing) Carter T Shock

> From: coder@ibm.net
> A good MUD grammar is incredibly context sensitive. A simple example is
> the case where the presence or proximity of an object adds verbs to the
> players. There is no need for this crap to wander thru the global
> namespace, or even warp the general grammar.
>
> >As such, one should be able to whip up a command interpreter with
> >lex/yacc. I've started on it at least a dozen times but never managed to
> >quite finish. Is this worthwhile? Thoughts?
>
> Nope. That approach tends to preclude having a dynamic language where
> users or objects can add, redefine, mutate or delete verbs and nouns
> freely at runtime. A Very Bad Idea.
>

I think we have a misunderstanding here. There's grammar (the structure of
a language) and then there's vocabulary (all of the individual words that
make up the language). I agree that the vocabulary is dynamic. I don't
think the grammar is.
I'll go one step more and suggest that how you implement the various
entities (people, critters, and objects) in your mud can influence the
success of such an approach.

Lessee... in most mud worlds, the "nouns" are dynamic, but the verbs are
not. I put nouns in quotes because often a noun/adjective pairing is
required to uniquely identify an object (the long sword, the black sword,
etc.). The verbs in the system are your commands. cast, throw, hit, etc. If
we want to allow dynamic or generic verbs, now you're getting into natural
language processing and I definitely don't want to go there. So there are
some distinct sentence structures that emerge:

<verb> <object> "hit foo"
<verb> <object> <object> "give gold foo" "cast fireball foo"

So the first trick is to define your grammar... establish a mapping of
verbs to appropriate objects. We'll start with "hit". In most codes if you
"hit foo" the code first sees what the allowable targets are for foo, then
tries to locate a foo somewhere in the world that satisfies the target
rules (get_person_room_vis(), get_obj_room_vis() whatever). The basic flow
doesn't change a whole lot. We still have classes of objects... people,
things, places, etc. One solution is to write our lexical analyzer so it
enforces target rules. Another is to write objects so they can respond to
any command (I've done sort of a mix here. Done in C++, the base generic
object has a handler for all available commands, all of which respond "You
can't do that" or somesuch. Real objects are derived from the base. For
commands that make sense on the derived object, overload the virtual
default handler, multiple levels of inheritence work nicely here).

An example of where this works very nicely is with magic. Identify the verb
"cast" as special in your lexical analyzer. Rather than
<verb> <object> <object>
it becomes
<verb> <spell> <object>

Now the question, why bother?
Well, first off, it can make the mud more user-friendly. Rather than simply
reporting "huh?" on bad commands, a true parser should be able to:
1) report the exact location of the error in the command
2) offer up suggestions (tab completion of commands)
Now, we could do all of this without learning lex/yacc, but doing it in
lex/yacc gives you a standard interface.. not to mention someone else has
written most of the ugly code for you already. Btw, the newer flavors of
the GNU lexer/parser software (glex and bison I think) offer up a C++
version that encapsulates the parser as an object. Nifty side effect is
that you can have more than one. So, if you really want to screw with the
user's minds you could conceivably have different command sets in different
parts of your world. (something along Zelazny's Amber... the physics are
different in the place you've warped to so the commands, spells, etc are
different). Wait, it gets better... if we want to link up muds, there are
ways that one mud could export its parser object to another so, if you
wanted, you could process commands for a user in the remote mud locally
(not sure why you'd want to, but hey.... explore the possibiliteis :)
- mud grammar (was Just a bit of musing) Nathan Yospe
- mud grammar (was Just a bit of musing) Chris Gray
- mud grammar (was Just a bit of musing) claw@null.net
- - mud grammar (was Just a bit of musing) Chris Gray
  - - mud grammar (was Just a bit of musing) claw@null.net
    - - mud grammar (was Just a bit of musing) Chris Gray
mud grammar Carter T Shock
- mud grammar Nathan Yospe
- - mud grammar Alex Oren
  - - mud grammar Nathan Yospe
- mud grammar Adam Wiggins
- mud grammar Chris Gray
Just a bit of musing (VRML) Dmitri Kondratiev
- Just a bit of musing (VRML) claw@null.net
Room coding Nathan Yospe
- Room coding Furball
command parsing Chris Gray
- command parsing Adam Wiggins
- command parsing claw@null.net
Room coding S001GMU@nova.wright.edu
- Room coding Chris Gray
Resets and repops Furball
- Resets and repops claw@null.net
- Resets and repops Jon A. Lambert
- - Resets and repops claw@null.net
  - - Resets and repops Nathan Yospe
    - - Resets and repops Jon A. Lambert
      - Resets and repops Nathan Yospe
        Resets and repops claw@null.net
        Resets and repops Adam Wiggins
        Resets and repops Nathan Yospe
        Resets and repops Adam Wiggins
        Resets and repops Nathan Yospe
        Resets and repops Chris Gray
        Resets and repops Chris Gray
        Resets and repops Adam Wiggins
        Resets and repops Travis Casey
        Resets and repops Chris Gray
        Resets and repops Adam Wiggins
        Resets and repops Shawn Halpenny
        Resets and repops Jeff Kesselman
        Resets and repops Chris Gray
        Resets and repops Nathan Yospe
        Resets and repops Jon A. Lambert
        Resets and repops Nathan Yospe
        Resets and repops claw@null.net
        Resets and repops claw@null.net
        Resets and repops claw@null.net
      - Resets and repops claw@null.net
      - Resets and repops Nathan Yospe
        Resets and repops Adam Wiggins
        Resets and repops claw@null.net
        Resets and repops Adam Wiggins
        Resets and repops claw@null.net
        Resets and repops Nathan Yospe
        Resets and repops claw@null.net
    - Resets and repops Jon A. Lambert
  - Resets and repops Furball
- Resets and repops Chris Gray
- - Resets and repops Adam Wiggins
  - - Resets and repops claw@null.net
    - - Resets and repops Adam Wiggins
      - Resets and repops claw@null.net
      - Resets and repops Chris Gray
      - Resets and repops claw@null.net
        Resets and repops Adam Wiggins
        Resets and repops claw@null.net
        Resets and repops Adam Wiggins
        Resets and repops claw@null.net
        Resets and repops S001GMU@nova.wright.edu
        Resets and repops coder@ibm.net
        Resets and repops S001GMU@nova.wright.edu
        Resets and repops clawrenc@cup.hp.com
        Resets and repops S001GMU@nova.wright.edu
        Resets and repops Chris Gray
        Resets and repops Nathan Yospe
        Resets and repops claw@null.net
      - Resets and repops Nathan Yospe
      - Resets and repops Adam Wiggins
        Resets and repops Nathan Yospe
        Resets and repops Adam Wiggins
        Resets and repops Nathan Yospe
        Resets and repops Chris Gray
        Resets and repops Nathan Yospe
        Resets and repops Chris Gray
        Resets and repops Adam Wiggins
        Resets and repops Chris Gray
        Resets and repops claw@null.net
        Resets and repops lhulbert@czn.com
        Resets and repops claw@null.net
        Resets and repops Chris Gray
        Resets and repops claw@null.net
        Resets and repops Adam Wiggins
        Resets and repops Chris Gray
- Resets and repops Chris Gray
- Resets and repops claw@null.net
- Resets and repops claw@null.net
- Resets and repops claw@null.net
mud grammar claw@null.net
- mud grammar Nathan Yospe
- - mud grammar claw@null.net
List software claw@null.net
- List software Nathan Yospe
- List software Chris Gray
- List software claw@null.net
- List software claw@null.net
I got your message..! MAYA DASWANI
3D graphics claw@null.net
Sorry for the dups (again) coder@ibm.net
mud grammar Jon A. Lambert
- mud grammar claw@null.net
- - mud grammar Nathan Yospe
  - - mud grammar coder@ibm.net
    - - mud grammar Nathan Yospe
      - mud grammar Chris Gray
      - mud grammar claw@null.net
EVOLUTION response claw@null.net
- EVOLUTION response Jon A. Lambert
- - EVOLUTION response claw@null.net
Garbage Collector Artur 'Revinor' Biesiadowski
A perspective out of time - the mudreport document Nathan Yospe
- A perspective out of time - the mudreport document claw@null.net
Old missing posts from old list coder@ibm.net
Execution Chris Gray
- Execution Nathan Yospe
- Execution Furball
- - Execution Jeff Kesselman
  - Execution Chris Gray
- Execution Cynbe ru Taren
Mixture Furball
- Mixture Adam Wiggins
- - Mixture Travis S Casey
  - - Mixture Adam Wiggins
    - Mixture Nathan Yospe
  - Mixture Furball
  - - Mixture Adam Wiggins
    - - Mixture Furball
      - Mixture Adam Wiggins
        Mixture Furball
        Mixture coder@ibm.net
        Mixture coder@ibm.net
    - Mixture Nathan Yospe
  - Mixture claw@null.net
  - - Mixture Adam Wiggins
    - - Mixture claw@null.net
      - Mixture Adam Wiggins
        Mixture Jon A. Lambert
- Mixture claw@null.net
- Mixture claw@null.net
- Mixture claw@null.net
- Mixture S001GMU@nova.wright.edu
- - Mixture Adam Wiggins
  - Mixture Furball
- Mixture claw@null.net
- - Mixture Nathan Yospe
  - Mixture Jon A. Lambert
Resets and repops (a really short post) claw@null.net
- Resets and repops (a really short post) Nathan Yospe
- - Resets and repops (a really short post) claw@null.net
  - - Resets and repops (a really short post) Adam Wiggins
    - - Resets and repops (a really short post) claw@null.net
      - Resets and repops (a really short post) Nathan Yospe
    - Resets and repops (a really short post) Nathan Yospe
Resets and repops (a really short post) <= hah! Chris Gray
VT100 codes ... Khanone@aol.com
VT102 codes Adam Wiggins
- VT102 codes Adam Wiggins
- - VT102 codes Adam Wiggins
Dupes coder@ibm.net
Efficiency Chris Gray
Event Handling Nathan Yospe
- Event handling Shawn Halpenny
- - Event handling Vadim Tkachenko
  - Event handling Maddy
A brief introduction.. ok, you got me: an introduction Greg Munt
- A brief introduction.. ok, you got me: an introduction Adam Wiggins
- A brief introduction.. ok, you got me: an introduction coder@ibm.net
Greetings. :) Michael Hohensee
- Greetings. :) claw@null.net
- - Greetings. :) Nathan Yospe
  - Greetings. :) Michael Hohensee
  - - Greetings. :) coder@ibm.net
    - - Greetings. :) Nathan Yospe
      - Greetings. :) Chris Gray
        Greetings. :) coder@ibm.net
        Greetings. :) Chris Gray
        Greetings. :) Nathan Yospe
        Greetings. :) Jeff Kesselman
        Greetings. :) Chris Gray
        Greetings. :) Greg Munt
        Greetings. :) Jon A. Lambert
        Greetings. :) Nathan Yospe
        Greetings. :) clawrenc@cup.hp.com
        Greetings. :) Furball
        Greetings. :) Chris Gray
        Greetings. :) clawrenc@xsvr1.cup.hp.com
      - Greetings. :) Shawn Halpenny
      - Greetings. :) Jeff Kesselman
        Greetings. :) Shawn Halpenny
        Greetings. :) Jeff Kesselman
        Greetings. :) Shawn Halpenny
        Greetings. :) Jon A. Lambert
        Greetings. :) Jeff Kesselman
        Greetings. :) Shawn Halpenny
        Greetings. :) Jon A. Lambert
        Greetings. :) clawrenc@cup.hp.com
- Greetings. :) Jeff Kesselman

MUD-Dev Archive

Year

Month

Index

March 1997