[MUD-Dev] Monthly FAQ Posting
Ling
K.L.Lo-94 at student.lboro.ac.uk
Mon Dec 14 14:25:07 CET 1998
Mud-Dev FAQ
Last modified: 13 December 1998
1. Introduction
2. Frequently Asked Questions
3. Previous Topics
4. The Members
5. Scenarios
6. Resources
7. Glossary
8. Changes, To Do & Acknowledgements
Please email any corrections, suggestions or constructive criticisms
to Ling, elkll at student.lboro.ac.uk.
Recent Changes:
981213 -- The Members: Updated Adam Wiggins' bio. Subjectively stripped
the bios of members that haven't posted recently, includes:
John Bertogio; Reed Copsey, Jr; Marc Eyrignoux; David Love (aka
Sauron); Katrina McClelan; and Greg Munt. Expect the whole
section to go in favour of an HTML version in the New Year
integrating the thread titled "Current Projects".
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. Introduction
The following may also be found at the list's homepage straddled at
<URL:http://www.kanga.nu/~petidomo/lists/mud-dev/>.
--<cut>--
List charter
The MUD Development mailing list is not platform, language or game specific,
but concentrates on discussing the design and implementation of any and all
MUD servers and systems. Another large related topic is game design. This
does not mean that the details of a specific server or game design point
can't be discussed in excruciating detail, or even that server or game
source can't be bandied about and picked over, just that the list isn't to
become a religious stomping ground for your platform, language, server, or
hobby horse of choice. The topic definition is not limited to technical
areas: social engineering, cultural considerations, applicability of
technical addresses to "soft" problems, and other less rigorous avenues of
investigation are also fair game.
The goal is high signal, low noise. The MUD Development list is NOT an
email version of the rec.games.mud.* newsgroups.
--<cut>--
Also from the same page is a message for the commercially orientated amongst
us:
--<cut>--
Note from the list owner
The list has a number of members who work professionally in the field. Their
presence raises certain concerns for intellectual property, trade secrets,
copyrights, etc for the list and for list postings. The below should give an
overview of this area, what I expect of list members, commercially affiliated
or otherwise, as well as the intended character of the list.
As list owner I expect all list members to be responsible for what they post.
The rules are obvious: If there is something your company or affiliations
does not want publicised, then don't post it to the list. If you see one of
your commercial or other partners post something to the list that shouldn't
have been, then don't bring it up on the list -- take it to direct email.
Raising such issues on the list will be used as an excuse for removing
membership.
Please do not use this as an alibi to start adding disclaimers to your posts.
You are the members on this list, not your companies. If it isn't your
opinion don't write it. If you are reporting someone else's opinion, state
it as such.
If a post is written as a representative of your company or affiliation, then
identify it as such. Adding a signature which identifies your affiliation is
not enough. That can be too easily automated and is not an explicit statement
of representation. A leading paragraph identifying the source or
representation placed above all the textual body including the attributions,
will do (keep it short).
Commercial grandstanding, advertisements, chest puffing, or other forms of
promotion are not appreciated on the list and will be rewarded with removal of
membership. The list is an expressly non-commercial venue. It is intended as
an intelligent and free discussion by peers in the field, both hobbyist and
professional.
Membership of the list is not a right. You are here as my guests. This is a
private list run as a personal contribution to the field. I trust the list's
membership to behave accordingly.
Posting to the list may be considered analagous to having a conversation in my
living room using bull horns while the windows are open and everyone has tape
recorders. There is no secrecy, or control of the dissemination of data once
it is posted.
And on a final note: Attempting to invalidate or discourage a discussion or
avenue of investigation on the list because it strays too close to a
commercial project's field or other such interest will be deemed an
intentional personal insult and due cause for permanent removal from the
list along with all associates.
Thankyou.
J C Lawrence, MUD-Dev list owner.
--<cut>--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2. Frequently Asked Questions
1. What should I do now I have joined?
If you have not already, please read the rec.games.mud.* FAQs to
familiarise yourself with all the different sorts of muds out there, see
<URL:http://www.cs.okstate.edu/~jds/mudfaqs.html>. Take some time to
browse through the list's webpage. It may be found at
<URL:http://www.kanga.nu/~petidomo/lists/mud-dev/>. Answers to most list
operation related questions may also be found there.
2. How do I post?
Posting on the list is a privilege which may be obtained from the list
owner (who resides at mud-dev-owner at kanga.nu). It is suggested you lurk for
a while to get a gist of how things work on the list. When you do approach
the list owner for posting privileges, attach your intended posting.
3. What is the accepted standard for posting?
In short: No more than 80 columns wide, and only use 7bit ASCII. If
you are posting from a country/language which uses "special"
characters, such as with umlauts or other diacritical marks, then
please ensure that your mailer properly MIME wraps them. Most modern
mailers will do this properly.
MIME, HTML, RichText and similar are discouraged. This encludes
"vcard" attachments from NetScape mail and similar. Small MIME
attachments, such as a graphic used to illustrate a point discussed in
the text of a message are acceptable. The guiding rule is that the
brunt of the value of a message must always be in the text.
A reply to another posting must have at least the name of the original
author if your mailer does not automatically prepend one, eg:
[Bubba]
>On 4 Jan 98 at 22:20, Boffo wrote:
>> Buffy <Buffy at players-r-us.com> wrote:
>>> I just found a cool mud at <URL:http://web.mud.com>
>>
>> Golly Gosh! Cover me in eggs and flour and bake me for 40 minutes!
These are commonly referred to on the list as "attributions".
Web pages are usually referenced in angled brackets as above.
When quoting a log from a game, put at least two spaces at the start
of each line so that when it is quoted it does not become confused
with other conversation text:
--<example>--
I have a maze in my game:
> look
You are in a maze of twistly little passages, all alike.
Isn't it neat?
--<example>--
Will be quoted as:
--<example>--
>I have a maze in my game:
>
> > look
> You are in a maze of twistly little passages, all alike.
>
>Isn't it neat?
--<example>--
Use a bit of common sense when quoting. Include enough of the
original message to make sense; no more or less. Avoid quoting an
entire post with a one line reply (btw, one line replies are bad :).
Also, don't be afraid to change the subject heading to something more
relevant if the topic has strayed somewhat (usually happens to most
threads).
Oh yeah, and a sensibly sized signature.
4. What is meant by high signal to noise ratio?
The noisy postings include messages which essentially say "I agree!"
and add no extra value, or those that do not relate to the purpose of
the list (like what you had for dinner, how your codebase/driver is
clearly superior to all others in existence and why language such and
such is better than such and such). Try to keep on topic and you
won't go wrong. However, the list is infamous for long postings which
start with one topic and end up rambling on about something else
completely different towards the end. But so long as it is regarding
muds...
5. I just made a post about such and such but no one responded to it!
There could be several reasons why no one has answered to your
posting. If it was to start a new thread, it could have been that the
topic has just recently been discussed. Try waiting a while before
bring it back up again. If it was in answer to a current thread,
other list members will have read it but just might not have anything
to say on that point right then.
6. What's all this Bubba business?
Bubba, Boffo, Buffy and friends are all typical mud players bred for
test scenarios devised by various list members. Originally procreated
by J C Lawrence (how, I don't wish to know), they have since come into
widespread use amongst the mud usenet groups (much to J C's amusement).
7. Aaargh! The traffic is too much!
Perhaps switching to the daily digest mode would help? Please refer
to your invitation for the appropriate information.
[NB: Since the change to Petidomo, this is no longer supported but
I believe it is being worked on. In fact, 70% done as of Jun/98. ]
8. How do I access the archives?
List traffic is archived daily and housed at:
<URL:http://www.kanga.nu/~petidomo/lists/mud-dev/>
9. How do I turn off the list while I'm on holiday?
There is a "nomail" feature which keeps you subscribed whilst not sending
you list traffic. It may be activated by mailing mud-dev-request at kanga.nu
with the body of the text as follows:
nomail <your email address>
To turn it back on after the holiday, substitute "mail" for "nomail".
Note the email address is optional.
Posting privileges are retained so you may find the same feature useful
if you post from several email addresses but would like to receive mail at
just one (don't forget to get posting privs for those addresses).
For more complete information, please take a look at both
<URL:http://www.kanga.nu/~petidomo/lists/mud-dev/#tune-out> and
<URL:http://www.kanga.nu/~petidomo/lists/mud-dev/#priviledge>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3. Previous Topics
Here's a list of practically all the topics discussed since the list's
creation up to early Jan 98 (early traffic may be missing):
Server design:
Affects vs. spoofs
Security concerns of spoofs
Component based bodies vs. aggregate bodies vs. atomic bodies
Rooms vs. coordinate spaces vs. mixed forms of the two
Methods of handling coordinate spaces: neighborhoods, tree forms
R-Trees, R*-Trees, 3d arrays, Quad/Oct trees
Automated population containers
Event models
Internal process models
Security models
Multi-threaded server design [conflicts resolution?]
Database design for a server
Use of transactional databases in a MUD server
How to avoid resets
Parsing systems, and language development tools
Design of internal MUD languages
Variations on event-driven design
Disk vs. memory based designs for MUD servers
IO Socket efficiencies.
Telnet protocol and terminal emulation
Design of Object IDs and Object ID recycling
Artificial probability systems
Virtual rooms, virtual objects, virtual mobiles
Sending mail from within a mud server
String handling and memory
Verb handling - global vs. local vs. mixed
Generic objects
Object assemblies
Collision detection
Client scripting and scripting prevention
Graphical interfaces
Must have books for programmers
Web vs. Telnet
Game design:
Classes of players and what they want from a game
Levels vs. level-less vs. abstracted levels vs. level-comparatives
Keeping a goal progression without levels
Handling of character inventory and representation of inventory
Families and their impacts on clans, multi-charring, and tactics
Character senses, representation and extension
Re-usable quests or plotlines
Generic quest creation systems
Rumor systems, handling rumor propagation, and rumor decay
Races
Placement of characters in the MUD-world predator totem-pole
Handling of character death as an in-game event
Perma-death vs. resurrection
Economic systems (and lessons learnt by prior experiments)
Energy-style ecologies and economies
Ecologies for MUD worlds
Inter-player communication systems
Perceived danger levels for characters
NPC AI, goal-oriented NPCs, intelligently automating NPCs
Player characters as NPCs/monsters
Nutrition
Wounds and trauma systems
Combat systems (round based, no rounds, interactive, etc.)
Combat messages
Combat scripting and action
Dynamic descriptions and perception
Views on the "undead"
User command interface design
All about bows, longbows, crossbows, etc.
Festivals and in-game mud games
Supporting both RPers and GOPers
Virtual chemistry/alchemy
In-game political and social structures
Implementing mundane professions (or Nation of Shopkeepers)
Methods of integrating PK (coexistence with non-PK)
Handling poison and disease
Inebriation and drugs
Dragons - a number of viewpoints
Spoken and written languages
Food - interesting or irritating
Starting characters or creating characters
Amalgamud specification document
Alignment vs. reputation
Character positions and rank point system
Automatic name generation
Learning and skill progression
Classless systems and profession-based systems
Physics and the mud universe
Hard sci-fi vs. science fantasy
Character places of their own
Character henchmen and servants
Thieves - ideas
Allowing players to affect the world
Group play and group dynamics
Spells and spell-casting systems
Characters - heroes, nobodies, or prey species
Game balance
Hive minds
Traps and riddle lists
Representing character stats - numeric, descriptive and graphic
Settings for mud worlds
List members' inspirational fantasy and sci-fi books
Handling and building of large trackless areas
Gods and deity systems
Mud Administration/Philosophy
Lorry's document on wizarding
The morality of logging and snooping
Problems with socializers
Social control and engineering
Dealing with "problem" players
Is the virtual world real?
Gender issues
Bartle's mud papers
The purpose of mudding
Motivating builders and coders
Role-play vs. Game-Only Play discussion
PK vs. Non-PK discussions
The infamous rape discussion
Habitat papers and anecdotes
Overriding players' control of the character
[courtesy of Jon A. Lambert]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4. The Members
Below is not the complete list of members but it does give a good
picture of a small and active cross section. Feel free to post any
corrections or additions to the maintainer.
--------oOOOo--------
Travis S Casey
Occupation: Unix sysadmin
Address: casey at nu.cs.fsu.edu
Personal details:
- Started in '89 on a Tiny variant.
- Really started in '93 on MudDog (LP).
- Accidently wizzed on SWmud (LP).
- Erratic development of a cyberpunk mud.
- Contributed some to the Lima LP mudlib.
- FAQ maintainer for rec.games.design.
- Married with two cats.
--------oOOOo--------
Matt Chatterley
Occupation: Student.
Location: England.
Addresses: neddy at itl.net
caffeine at unreal.org
root at mpc.dyn.ml.org
Personal details:
- Main interests are game design (theoretical), and ways to change
things that are (tm) into things that should be (patent pending).
- Occasional cynic, and critic of online gaming environments.
Server: Caffeine (LP)
--------oOOOo--------
Chris Gray
Occupation: Programmer (UNIX?)
Address: cg at ami-cg.GraySage.Edmonton.AB.CA
Location: Edmonton, Alberta, Canada
Personal details:
- Never really played a MUD other than his own (bar 4 hours on Northern
Crossroads, and some LP experimenting)
- Old enough to be the father of most of you, so his perspectives
might be quite different
- Done very little RPG-ing, but a fair amount of Adventure gaming
- Thinks the Web and C++ suck big time! (shocking!)
- Studied programming languages for AI at Alberta. Attempted to
implement a language called ALAI (A Language for Artificial
Intelligence - original, huh?) but got bogged down.
- Taught computer architecture, programming languages, and adaptive
information systems for the department instead.
- Started but never finished PhD in required internal features for
multi-user protected OSes (at Alberta!)
- Creator of programming language 'Draco' for CP/M, later ported to
Amiga/68k.
- CP/M version of Draco still in Simtel. Docs managed to end up in a
McGraw-Hill book without any permission!
- Worked with Myrias, a parallel computer company.
- Wrote Myrias' ANSI C compiler.
- And Amiga Empire (rewrite of Empire, in Draco of course!)
- Heard about MUDs and wrote a quick and dirty AmigaDUM.
- Myrias went bust two months later (no connection!).
- Now works with the remnants of Myrias which has been brought back to
life.
- After 6+ yrs, AmigaDUM it is now called AmigaMUD and can be found on
Aminet (v1.1).
- AmigaMUD currently being ported to Linux.
--------oOOOo--------
Marian Griffith (De Vries Griffith to be more precise)
Addresses: gryphon at iaehv.nl
Web page: <URL:http://www.iaehv.nl/users/gryphon>
- Lots of information on the !Overlord project. An attempt to collect
ideas to improve on muds but does not aim at any finished product.
Interests:
- Interest in roleplaying and game world building but will talk about
anything ;) (except for pk because there's nothing to be added that
hasn't been said many times already)
--------oOOOo--------
Michael Hohensee
Occupation: Part time student?
Addresses: michael at sparta.mainstream.net
Personal details:
- 17 yrs of age during March '97
Server: AeMud - Arbitrarily Expandable MUD
Server concepts/features:
- Written in C.
- Treats all objects equally for certain common uses.
- A spiffy and mostly efficient memory-allocation/recycling system.
(Which may actually be kinda pointless, but it was interesting to
code)
- A command queue that is used equally by players and computer-driven
objects.
- Highlights include interactive portals and simulation of liquids.
--------oOOOo--------
Raph Koster
Occupation: Lead designer for Ultima Online, for Origin Systems
Location: Austin TX
Addresses: rkoster at origin.ea.com
Personal details:
- Creative director of mud (not actually director of UO).
- Married to fellow mud designer Kristen Koster, also list member.
- One kid, another on the way.
- BA in English (creative Writing) and in Spanish (Literature), and a
Master of Fine Arts in Creative Writing.
- Age 26.
- Particularly interested in social evolution in virtual environments,
and related issues such as administration of said environments,
methods of social control, user awareness of social context, etc.
- Game and server features that contribute to the above.
- Most everything Mike Sellers listed off ;) such as ecological sim
layers, Maslow, etc :)
Server: LegendMUD, known on there as Ptah
<http://mud.sig.net>
<telnet://mud.sig.net:9999>
- Used to run lectures often of interest to the mudding community.
Server concepts/features:
- Has evolved into a weird hybrid of LP and Diku.
Game concepts/features:
- First classless mud.
- Probably the first historical theme gaming mud.
- Attempt to provide a truly fictional immersion, from detailed
hand-designed questing, to carefully crafted and well-written
areas, to output designed to read like prose (see the speech
system for an example of what I mean - adverb support, etc etc).
- Word-based spell system (it doesn't work, wasn't pushed far enough
into the realm of spell language).
Server: Ultima Online, known there as "Designer Dragon"
<http://www.owo.com>
Game concepts/features:
- World simulation.
- Maslow-based AI system for ecological sim and for basic human
activity (NPC moods, etc)
- Pool-based conversation system.
- Economic sim layer.
- Social control mechanisms (notoriety, etc).
- Dynamic modular quest system.
Noteable facts:
- Appears to be the first big mass market persistent world that really
breaks through and establishes the genre as a commercially viable
one.
- Pretty controversial, plagued with all sorts of problems from day
one, reviews range from stellar to in the toilet. ;)
--------oOOOo--------
Jon A. Lambert
Occupation: contract programmer for 12 years, primarily mainframe DBA
Addresses: jlsysinc at ix.netcom.com
Web page: <http://www.netcom.com/~jlsysinc>
Personal details:
- Former BBS operator - C64 and later DOS, ran many mud-like games.
- Occasional player on funny little Compuserve mud
- Attempts to rationalize interest in muds as practical professional
education. :P
- Player of paper & pencil games since mid-70s... primarily early
D&D, RoleMaster, Vampyre, Warhammer and Cyberpunk
- Favorite Computer Games - Tradewars, Civilization, Simcity, Hammurabi,
Empire, Railroad Tycoon...Ok just about anything design by Sid Meir
- Age - Too old to rock-n-roll, too young too die.
- Favorite color - blue
- Favorite character - Odysseus Laertes of Ithaca
Secret Project: TychoMud
Mud theme:
- Greek city states - synthesis of historical period 2500-200 BC with
unique interpretations of popular and lesser known mythologies.
Game physics, sciences and medical lore almost wholly based on
Plato's wacky universe. Yes, water does flow upward, at least
through the hole in middle of Earth.
Alternate Themes:
- Original FRPG campaign world.
- Dark postmodern theme.
Server concepts/features:
- Complete persistent objects backed by transactional relational
database
- Event driven and multi-threaded
- Graphical interface to text-based game
- Object-oriented concurrent stack-based mud programming language
(a twisted genetic mutation of Rexx, Java and Ada)
- Graphical user/builder component-level programming/building
Game concepts/features:
- Game system based on RoleMaster FRPG - skill driven system
- Heavy roleplay single account - multi-PC, NPC, or
gamemaster/storyteller
- Deistic intervention (always IC), capricious and encouraged
Direct
- Deistic programmed control of in-game systems (solar, lunar,
climate, oceans, etc.)
- Realistic flora and fauna ecologies (reset/repop - thou shalt not)
- Resource driven economies Social, political and economic driven game
- Magic rare and equipment poor
- Realistic professions
--------oOOOo--------
J C Lawrence
Notes:
MUD-Dev list owner -- please direct all list-related postings to
mud-dev-owner at kanga.nu.
All postings written as list owner are identified as such.
Occupation:
Contract programmer for 15+ years, ex-school teacher, printer,
sailor, fisherman and other sundries, small time SF&F writer,
dinosaur, philosopher. Self taught.
Addresses:
claw at null.net (work)
coder at kanga.net (home)
Please use these in preference to all other addresses.
Personal details:
Started MUDding in '84 on Shades, SX MUD (MUD1/MUD2), and still
heavily influenced by same. Was a part of the IOWA project with
Pip Caudrey. Been working on a MUD server on and off since '85.
Major inspirations in chronological order: Shades, MUD2,
Transputers, Marcus Ranum, Uber, Unter, LP, Aber, Tiny*, Northern
Lights, MOO, Stephen White, LambdaMOO, a large bunch of IBM's OS/2
developers, Cool, Interlude (neat!), Dave Engberg, C++, Cold, Mike
Cowlishaw, Legend, ColdX, Greg Hudson, MUQ, BeOS, Inferno, Limbo.
Self-educated in pure math, english literature and religious
philosophy.
Server:
Unnamed, but last referred to as "Murkle". There are several
increasingly sarcastic acronymic expansions of "murkle" that are
left up to the reader to discover.
Server features:
Written in C++. Compleatly persistent world achieved by
transactional persistant store. Event driven heavily
multi-threaded lockless server design. OO internal programming
language ala Python/C. Server has no prior knowledge of the game
mechanics it is hosting. DB (persistant store) is disk based and
contains a full rollback feature for crash recovery, bug hunting
and logging. Same rollbacks allow for limited time travel by
users. Free user programming allowed. No logical difference
between mobiles, NPCs, and players. Players may control multiple
bodies simultaneously. Swarm-type bodies as possible. Players are
heavily abstracted from their characters, which are heavily
abstracted from their character bodies. Players connect to
accounts, from which they select characters to play, which in turn
control bodies. Thous shalt not repop, and thou shalt not reset.
No global namespace in game, players and characters all have
individual private namespaces.
Game features:
Particle based energy-centric resource economy drives and limits
the game world. Magic is merely a side-effect of the particle
economy. Permadeath. Free PK. Extremely high magic world. No
particular interest in RP. GoP-centric. Players and mobiles may
freely steal bodies from each other. The goal is to re-attain
godhood. Resolution of control from body toward player is
generally not possible. Violently fluid programmable combat where
very minor items and affects can be devastating. Skill webs. No
real levels. A human should never have to wait for a machine --
there is no waiting. Heavy use of unstable positive feedback loops
for populations and NPC behaviours.
Scenarios:
Bubba and the Crystalline Tree
The Great God GooGoo and his holy relics
Castle Krack, the Elven Forest, and the Sceptre
UggUgg's mana fight
Orc breeder/fighter/nobles
Mobile population migrations
A farcical justice system
Trash collectors (TC's)
Bubba digging the Panama Canal
...many others...
--------oOOOo--------
Jon Leonard
Occupation: Chip designer
Location: Mountain View, California
Address: jleonard at slimy.com
Web Page: <http://www.slimy.com/~jleonard/>
Personal details:
- Started MUDing as a freshman in college on the LPmud at
fenris.claremont.edu. I took over admin of it and played
with the server source code until I determined that it would
be easier to start from scratch to get what I wanted. This took
a few years.
- mostly a lurker on the list
- I'm paying for a full-time net connection, so I can host my
MUD, or any other interesting MUDs.
Server: Qxhrptrwzzllp't
<telnet://slimy.com:2121>
This is a completely from-scratch design, which at this point is
mostly a lisp-like interpreter with a partially written mudlib
running on it.
--------oOOOo--------
Kam Ling Lo (prefers Ling)
Occupation: Electronic & electrical engineering student, will probably
specialise in either microprocessor design or EMC.
Addresses: K.L.Lo-94 at student.lboro.ac.uk (or elkll@ for short)
kllo at iee.org
Personal details:
- Merely 21 but feels far too old anyway.
- Purple hair!
- Self-taught computer knowledge, so quite ignorant.
- Broad interests in science in general.
- Pet interests include artificial life and graphic novels.
- Thinks gameplay is of paramount importance.
- Heavily sci-fi orientated. Influences include all C64 and Amiga
games past, various books, cartoons, especially those with 'mechs
in them.
- Somehow managed to accumulate knowledge of various paper games no one
else has ever heard of (eg: Air Eaters Strike Back!)
- More interested in heavy strategy gamer than muds.
Server: Vague (DGD LP)
Mud Theme:
- Post Interstellar War, set in one solar system cut-off for several
hundred/thousand years. Heavily commercialised, whole system
fragmented into legal mush.
cf: Against a Dark Background by Iain M. Banks.
Server concepts/features:
- Just barely working. Currently investigating quaternions.
- Switching from the tradition view that the connection controls a body
in the game to the connection controls a soul which directs the
body. Oughta credit JC Lawrence one day for inspiration/blatant
rip-off.
- This design should eliminate a few design problems and further
minimise creators cheating by forcing creators to code only when
disconnected from the body.
- Would like to implement a translator that compiles a custom
scripting language to LPC.
Game concepts/features:
- Meat of the mud is not remotely mud-like in the traditional sense.
- Players direct a team of agents on a series of missions, for each
mission a 1km x 1km world will be generated.
- Players perceive the game world through the eyes of their agents,
text descriptions will be generated on the fly.
- Heavy emphasis on espionage and covert operations.
cf: Goldeneye
- Design treatment available on request.
--------oOOOo--------
Alex Oren
Occupation: Programmer in a consulting firm.
Address: alexo at bigfoot.com
MUD Background:
- AD&D DM since '85. Had a brief and fascinating encounter with an LP.
- Got interested in OO MUD server design in '95.
- Posted a request for help[*] (22-5-96) that started a correspondence
which later evolved into the "CC list".
- Due to RL pressures reduced to lurking status. The server,
unimplemented, now gathers dust in some obscure corner of my
mind.
Server concepts/features:
Affects.
[*] http://search.dejanews.com/msgid.xp?MID=<31a32684.293427796@news.ibm.net.il>
--------oOOOo--------
Mike Sellers
Occupation: Chief Creative Officer for The Big Network; Chief Alchemist of
Online Alchemy. Okay, both of those are real titles, but they boil down to
being a game and game-world designer.
Some previous occupations: creator of Meridian 59, user interface designer,
software engineer, animal fertility lab scientist, fantasy miniature
sculptor, movie extra (Apocalypse Now), and one-time circus roustabout.
Location: Pleasanton, California
Address: mike at online-alchemy.com
Interests and Personal stuff:
- Homeostatic mechanisms in world politics, ecologies, and economies
- Maslovian-inspired AI for NPCs and mobiles
- creation of strong communities online
- creating games that provide a truly immersive experience
- making online entertainment into a viable business
- being happily married with six kids :-)
--------oOOOo--------
Matthew Sheahan (chiaroscuro)
Occupation: Runs small Unix-based ISP, Crystal Palace Networking, with wife.
<URL:http://crystal.palace.net> Hacks Perl and Sendmail for actual money.
<URL:http://www.ajna.com>
Location: Sparta, New Jersey
Address: chaos at crystal.palace.net
Personal details:
- DOB 08/15/1974
- Curmudgeonly Discordian, incredulous occultist.
- First exposure to MUDs c. 1992, cut teeth on Holy Mission and
Cyberworld, now malefic dictator figure on Lost Souls as Chaos.
- RPG background in AD&D, Shadowrun, Rifts, V:tM, M:tA, CP2020,
GURPS; currently runs GURPS "Men in Black" campaign.
- Many lessons learned by balancing the needs of a large base of
running code and a midsized player base with aggressive
technical advancement.
- Primarily a lurker.
Server: Lost Souls (Amylaar LPMud migrating to MudOS)
Address: <URL:telnet://lostsouls.org:3000>
<URL:http://www.lostsouls.org>
MUD Theme:
- Syncretic medieval fantasy theme evolved via a process of
integrating the typical setting elements stolen from fiction
into a cohesive worldview.
Game concepts/features:
- As stands, Lost Souls is a technically advanced MUD with a strong
set of quality requirements and many tools for producing
advanced content, but rather standard in terms of game play
elements.
Future plans:
- Replacing simplistic skill system with a skill tree.
- Adding GURPS-style design elements to character profiles.
- Replacing AD&D-style alignment system with reputations.
- Replacing poorly-implemented "standard LP style" quests with a
dynamic scripted-task mechanism a la Daggerfall.
- Adding an item crafting and enchantment system.
- Adding player ownership of structures and businesses.
- Adding a level of territorial rulership to the game bearing some
small resemblance to the AD&D Birthright setting.
- Eliminating levels and "experience" as they are known.
--------oOOOo--------
Vadim Tkachenko
Occupation: Web Developer & Java reusable code manager
Location: Quad Cities (border of IA/IL), USA
Address: vadimt at 4cs.com office
Webpage: <URL:http://206.139.13.63/~vt/gradient> [moved to below?]
<URL:http://gatekeeper.4cs.com/~vt/gradient> [temporary]
There is an access restriction based on the rule:
I want to know who you are. Register, and get it free.
Personal details:
- Age 32, programming since 1988
- Reusable multi-tiered architectures
- Consistent game model
- Balanced extensible world
- Like to design MUDs more than to play them (as they exist now)
- Hundreds, if not thousands, hours spent playing one-player RPGs, the
favorites are Eye of Beholder, Ultima Underworld
Server: Gradient
Status: Skeleton
Features:
- Implemented in Java, based on the reusable client/server framework
model, code-named Jukebox (BTW, today (Feb0298) accepted as a
corporate standard :-)
- Inherently multithreaded, multi-protocol, multi-model (you can just
plug in the protocol adaptor, business logic adaptor and Voila!
You have it)
- Persistent objects as DB (now looking at Voyager -
<URL:http://www.objectspace.com/voyager>), no resets
- External NPC engine, based on the logic and interaction history
- Multi-protocol clients: stock telnet clients as well as specialized
graphical ones (DB implications here)
- Ability to invoke the scripts as URL references (for advanced players
:-) - you specify the URL, it's being interpreted and executed
Game model:
- Consistent object interaction model, based on property tree,
representing weighted features/subfeatures/sub-subfeatures and the
actions result of which depends on the property values (including
regexp on the property values). Actor/Target/Context property
evaluation model is engaged, which allows easy implementation of
the gradient worlds (BTW, this is where the name comes from).
- Game balance is considered critical for the world playability's sake
- Gods balanced with their incarnations, energy balance between the
gods and worshipers.
- Magic energy transformations (fixed input, accumulation by accidental
targets, transformations to other kinds of energy)
- Soul and body are separated, resurrection (or, more exactly, body
capture) for bodies, perma-death for souls
- Advanced NPCs indistinguishable from players (ideally), control over
which may be taken by admins/players (body capture)
- Stubborn unique objects which have own idea how to behave depending
on the conditions (location, current ownership, etc.)
- Alternate realities and terraforming for players (initial idea from
Castle Amber by Roger Zelazny)
- Object-oriented structure: you can have the inheritance
(object/weapon/blade/katana)
- Objects hidden inside one another: the more advanced you become, the
more you're able to identify/use the object.
--------oOOOo--------
Greg Underwood
Occupation: Programmer Analyst, Simulated Immersion Research Environment
(SIRE) Lab, Logicon Technical Services, Inc.
Wright Patterson AFB, Dayton, OH. Basically, I work on the USAF's
F16 flight simulators.
Address: s001gmu at nova.wright.edu
Location: Dayton, Ohio, USA (yeah, the place where they had the Bosnia
Peace Talks a couple years back).
Personal details:
- BS in Computer Science, with a Minor in Religion, from Wright State
University, 1998.
- Used to work on Diku/merc/rom derivatives, specifically Eternity of
Discord. (the code base of which has survived in various forms
under a couple of of different names, which surprises the heck
out of me.. it sucks. :)
- Currently working on a home-grown project with a friend who is
currently a lurker on the list.
Server concept/features:
- Key features include event driver, object orientated nature of the
program, mSQL relational database for info management and non-io
specific, requiring specialised clients to transform data into
something more palatable.
Game concept/features:
- The major foci of the project include a MUCH more realistic combat
model from Diku. Key differences include combat between one
versus many results in one dead opponent v.quickly, usually.
- Heavy magic world with well defined metaphysics, which defines the
physics of the world.
- Primarily a numbers/resource management game, rp will be a side
effect due to the multi-player nature.
- Pkill & "permanent" deaths.
- Player characters will include self-preservation code/instincts,
player can override instincts for complete control but without
overriding, can't get character to behave self-destructively.
--------oOOOo--------
Adam Wiggins
Occupation: Lead programmer for Cinematix Studios, Inc
Location: Phoenix, Arizona, USA.
Address: nightfall at inficad.com
Personal details:
- Primary interests for a mud are enhanced 'realism' and internal
consistency of the game world, mainly getting rid of all the
old kludges (hitpoints, experience, levels, classes, tell)
and creating a much more detailed and complex world.
- Proponent of skill-based systems which encourage roleplaying
by making the charcter one plays act and respond as befitting
their race/temperment.
Server: Strife mud
--------oOOOo--------
Nathan F. Yospe
Occupation: Software engineer, writer, cartoonist. (yes, really, all of these)
Addresses: yospe at hawaii.edu
Location: Hawaii
Personal details:
- Interests in elements of solid state and materials science, and
biochem, specializing in molecular genetics and crossover areas
with biomedical science.
- My goals are not particularly relevant to this list, aside from the
fact that I have written sucess at them into the ancient history
of my mud universe, by some anonymous other, fifty years after
I'll likely be dust. The goals: complete supplemental immune
system simulated by organic nanotechnology.
Server: Physmud++
Server concepts/features:
- Mud built by first defining fundamental laws and then constructing the
world in a lego-like manner.
- Functions as a client with a single server, every text transaction and
most decision-tree transactions are handled clientside and passed to
the server as tokened sequences.
- Physmud++ has evolved in the time that I have been on this list, from
a Diku-like C++ mud to what it is today, completely unique.
Server: GURU
Server concepts/features:
- Started 2.5 yrs ago, completion date of December 2002
- Graphical, VR orientated, mass scale distributed fantasy world.
- Designed from the world go for scaleability and most of the
innovations in Physmud++ are really those of the GURU, simplified
and tested in an environment that I can, peice at a time, actually
accomplish.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
5. Scenarios
Standard scenarios used to demonstrate various mechanisms.
Dragon's Dinner - Alexander Weidt
~~~~~~~~~~~~~~~
/(o__. _____| \ |OcO|
---------/|-/|-( ,__)-------| | |--------+++++++++/|_| - |_ -----------
/\/ |/ |/ _ \++++++C+O+M+P+L|E+X+I+T+Y+++++O+F+++/f| `-' |
|\/ / \/ "++++++D+|+S+T+R+I+B+U+T+E+D+( u| |
___| . .____. /______________| "|++++++S+Y+S+T+E+M+S+\n|_)___(_/-----------
_| /| |_ || |_ |____| | "++++++++\| | | | \
/__/LL__,) LL__,) | / (__|__) \
Pretty picture depicting the famous `` Dragon's Dinner'' problem, by
Jutta Degener.
The Dragon's dinner problem
---------------------------
One of the original goals for the DOME project was to provide a
parallel/distributed execution envirionment for an LPmud game
driver. LPmud is programmed in a langauge called LPC, which is derived
from C and enriched with constructs to enable object oriented
programming, complex data types such as associative arrays and lambda
closures. This is interpreted by the game driver which provides single
threaded execution semantics. Items in the game are represented by
LPC objects which provide methods specifiying how they interact with
other objects in the game.
Consider the following problem (dubbed "Dragon's Dinner"). Assume, in
an asynchronous distributed system, that there are two room objects
(r1, r2) and a door object (d) that connects them. R1 contains a
hungry dragon (hd) and r2 contains an adventurer (a). The door is
currently open, the adventurer has just fled from r1 and is about to
close the door. The dragon, on the other hand, wants to go after the
adventurer. Code for the dragon is something like:
if (d->is_open())
hd->move_to(r2);
And the code for closing the door is something like:
d->close();
Now what if the following happens: The thread that executes the
dragon's action has checked that the door is indeed open, while the
other thread which is concurrently executing on a different processor,
closes the door. This succeeds and the adventurer sees the door
closing. However, when control returns to the dragon's thread, it
still believes that the door is open and steps through it, much to the
surprise of the adventurer who sees the dragon walking through a
closed door, before being devoured by the dragon.
Naturally this is merely a race-condition dictated by the asynchronous
execution of two data-dependent threads. The main goal of the DOME
project is to provide a system where the component objects can be
programmed in a sequential fashion, but have the run-time support
resolve such race-conditions (in a deadlock free manner) so that
parallel execution can be achieved.
Alexander Weidt [June 1995]
Uncertainty model - JC Lawrence
~~~~~~~~~~~~~~~~~
Uncertainty model: A representation model for a MUD world or objects based
on the following principles:
There are three types of objects in the world:
1) objects which have an uncertain state
2) objects which have a certain state.
3) objects which don't exist but retain a certain state.
The state in question about an object can be its exact identity (eg, not
just a key but the key to Castle Krak, not just a worn out sword but The
Sword of the Great God Goo Goo, etc), or the exact state of that
identified object (a gun vs a loaded gun vs a toy gun vs broken gun etc).
The terms:
-- All objects are indeterminate (unidentified) until identified (see
#1). Such objects are referred to as "ur-objects", or occassionally
"meta-objects".
-- Upon identification ur-objects are "realised" and become
"normal-objects".
-- Objects that have been lost and are thus candidates for becoming
ur-objects again, or otherwise torn down are termed "lost-objects" or
"limbo-objects".
The underlieing concept is that the resolution of the identity of an
object is done at the last possible minute. All ur-objects have the same
innate possibilities of being any matching normal-object. The decision on
whether any particular ur-object is actually any particular normal-object
is done only at the moment of successful identification (eg an ur-key
sucessfully opens Castle Krak).
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
6. Resources
Anything notable and mud related that should be read/investigated.
Webpages:
A Rape in Cyberspace
<URL:http://www.apocalypse.org/pub/u/lpb/muddex/vv.html>
The infamous article by Julian Dibbell.
How it really happened...
<URL:http://www.apocalypse.org/pub/u/lpb/muddex/bartle.txt>
Richard Bartle's early history of MUDs.
Killers Have More Fun
<URL:http://www.wired.com/wired/6.05/ultima.html>
An article by Amy Jo Kim.
Lucasfilm's Habitat
<URL:http://www.communities.com/company/papers/lessons.html>
<URL:http://race-server.race.u-tokyo.ac.jp/RACE/TGM/Mud/habitat.html>
<URL:http://www.communities.com/people/crock/habitat.html>
Detailed document about an ambitious graphical mud. [JCL]
Lydia Leong's MUD resource collection
<URL:http://www.godlike.com/muds/>
[Raph K]
Marian Griffith's !Overlord project
<URL:http://www.iaehv.nl/users/gryphon>
Full of information useful to mud designer/admins.
MUDDex
<URL:http://www.apocalypse.org/pub/u/lpb/muddex/>
A collection of documents including Bartle's, Dibbell's mentioned
above. [Raph K]
Muds:
AlphaWorld: <URL:http://www.cs.cuc.edu/~sopwith/aw/>
Anyone care to comment?
AmigaMUD: <URL:telnet://mud.myrias.com:23>
Chris Gray's custom mud. Moving site. [Jun 1998]
Armageddon: <URL:telnet://ginka.armageddon.org:4050>
To my knowledge the ONLY truly successful full-bore RP environment
based on a Diku-style server with full combat and the like. Often
cited as such at any rate. [Raph K]
Aturion Dynasty: <URL:http://aturion.com:4444>
Almost all the muds done by Owen Emlen have interesting design
features to them too. [Raph K]
[See also EmlenMud II]
Avalon: <URL:http://www.avalon-rpg.com>
Commercial text muds. Avalon has an interesting newbie tutorial
mode, and room description generation code that is nifty
too. [Raph K]
Cold: <URL:telnet://ice.cold.org:1138>
A branch off the ColdMUD (below) using the Genesis driver, sometimes
referred to as Cold/Genesis or ColdX/Genesis.
ColdMUD: <ftp://ftp.kanga.nu/pub/MUD/Servers/ColdMUD/>
ColdMUD is for all intents and purposes dead. Greg Hudson officially
stopped development of it back in 1994, and I just 'branched' the
ColdX/Genesis from it, rather than making an issue with people and
continuing to call my development of it 'ColdMUD'. [Brandon Gillespie]
CoolMUD: <URL:http://csclub.uwaterloo.ca/u/sfwhite/coolftp>
Incredibly elegant server design. [JCL]
Dark Sun Online: <URL:http://www.ssionline.com>
Commercial graphical mud with turn-based combat in a real-time
environment. [Raph K]
DartMUD: <URL:telnet://dartmud.com:2525>
A very ambitious LP mud with lots of good ideas which never seemed
to have gelled together correctly. Plenty of bugs. A sequel is
being worked on.
DragonRealms (Gemstone): <URL:http://dragonrealms.net>
Gemstone was and prolly still is the most popular mud in the
world, period. It evolved into DragonRealms. [Raph K]
Duris: <URL:telnet://duris.org:6666>
A pk mud with economy?! [Down? Jul 1998]
Eternal City, The: <URL:http://www.bignetwork/hc/ec>
Commercial mud using the Cold server.
EmlenMud II: <URL:http://degu.cs.indiana.edu:6669/em2.html>
Looks like Owen Emlen is in the process of making a new mud.
Furcadia: <URL:http://www.realtime.net/furcadia/>
A commercial graphical mud by Dr. Cat.
LambdaMOO: <URL:http://vesta.physics.ucla.edu/~smolin/lambda/>
One of the pages for this MOO.
LegendMUD: <URL:telnet://mud.aus.sig.net:9999>
The first classless mud, strange diku/LP hybrid. See Raph
Koster's bio.
Medievia: <URL:telnet://medievia.intersphere.com:4000>
The most popular free gaming mud I know of. Pioneered the use of
things like in-game spam ads for themselves and lack of due credit
given for code (:P) but also has things like ASCII map terrain,
large algorithmically generated areas, etc. [Raph K]
M59: <URL:http://www.3do/meridian>
Ask Mike S.
Mortal Conquest: <URL:telnet://199.74.98.37:9999>
That game I can't remember with the whities and the darkies. [JCL]
By Own Emlen. [Down, 1st March]
MUD2: <URL:telnet://mud2.com:23>
<URL:http://www.mud2.com>
A licensed copy run by Bartle.
MUQ: <URL:http://www5.biostr.washington.edu/~jsp/muq.html>
Northern Lights:
<URL:http://www.ludd.luth.se/mud/aber/northern_lights.html>
<URL:telnet://aber.ludd.luth.se:6715>
Realms, The: <URL:http://www.realmserver.com>
Realms is a commercial graphical mud from Sierra.
Shades: <URL:telnet://games.world.co.uk:23>
TODO - get Bartle's comment here.
Toril: <URL:telnet://torilmud.com:9999>
One of two offshoots of Sojourn (other being Duris).
Trash: <URL:http://games.world.co.uk>
Somewhere in the webpage with Shades. [Down, Sept 1998]
Tron: <URL:telnet://polaris.king.ac.uk:3000>
An out and out pk mud, more of an arcade game using ASCII maps than
a mud in the conventional sense. Not one for the faint hearted.
Should you want a game but can't find anyone, drop me a bell.
Start learning with disc or spider. Be prepared to break your
keyboard. [Ling]
UOL: <URL:http://www.ultimaonline.com>
Ask Raph K.
Worlds of Carnage: <URL:telnet//carnage.labs.emich.edu:4000>
The first Diku mud with an internal scripting language, called
"easyacts." This code formed the basis of the MobProgs put into
Merc 2.2. LegendMUD is a spiritual offshoot of Carnage, and Cythera is
a literal offshoot. (Interestingly, Damion Schubert, a designer on
M59, was also a Carnage immort alum). Imperium Gothique's scripting
was derived from either mobprogs or Carnage, not sure which. Carnage
definitely had a lot of influence on the world of Dikudom. [Raph K]
Notable muds yet to be found:
IOWA Project, The:
TODO - dig up references in Bartle's MUD survey, browse LambdaMOO
ftp site and MUDDev.
Keywords: MirrorWorld, Gods, Pippin ("Pip") Caudry.
Island:
Did this not die some time back? [Tho Keegan may yet resurrect it]
MUD1:
Although MUD2 is up above.
Sojourn:
Died. Will have to hang. Unlikely to find any info. Spawned Toril
and Duris, main difference being the way PK is handled. Search
Dejanews for references? (thanx Raph K)
Not so mud related webpages.
ANSI and VT terminal codes in general:
<URL:http://www.cs.utk.edu/~shuford/terminal_index.html>
And in case you wanted to know more about VT-### in particular:
<URL:http://www.sdsu.edu/doc/texi/screen_10.html>
<URL:http://www.mhri.edu.au/~pdb/dataformats/vt100.html>
Or ANSI terminals:
<URL:http://www.mhri.edu.au/~pdb/dataformats/ansi.html>
AI Nodes/ANN:
<URL:http://206.107.246.21/packhste/5/>
Amit's Games Programming Page:
<URL:http://www-cs-students.stanford.edu/~amitp/gameprog.html>
Anti-Mac interface:
<URL:http://www.acm.org/cacm/AUG96/antimac.htm>
BSP trees:
<URL:http://reality.sgi.com/bspfaq/index.shtml>
Image formats (esp PPM):
<URL:http://www.dcs.ed.ac.uk/~mxr/gfx/2d-lo.html>
R-Trees:
<URL:http://www.cs.cuhk.hk/~drsam/methods.html>
VR programming tutorial:
<URL:http://www.cs.virginia.edu/~rg3h/networkVR/paper.html>
Programming references to get the budding scratch mud coder started:
BSD Sockets: A Quick And Dirty Primer
<URL:http://world.std.com/~jimf/papers/sockets/sockets.html>
With other relevant papers pointed to by:
<URL:http://www-users.cs.umn.edu/%7ebentlema/unix/>
Vic Metcalfe's (vic at brutus.tlug.org) unix-socket FAQ can be found at
Text version:
<URL:http://unlser1.unl.csi.cuny.edu/faqs/sock-faq/usenet/unix-socket-faq.usenet>
<URL:http://www.ibrado.com/sock-faq/usenet/unix-socket-faq.usenet>
HTML version:
<URL:http://unlser1.unl.csi.cuny.edu/faqs/sock-faq/html/unix-socket-faq.html>
<URL:http://www.ibrado.com/sock-faq/html/unix-socket-faq.html>
There's a nice leader page for the FAQ with other related pointers at:
<URL:http://unlser1.unl.csi.cuny.edu/faqs/sock-faq/html/unix-socket-faq-1.html>
<URL:http://www.ibrado.com/sock-faq/>
The TCP/IP applications FAQ can be found at (of course):
<URL:http://www.faqs.org/faqs/internet/tcp-ip/applications-FAQ/index.html>
The TCP/IP FAQ from comp.protocols.tcp-ip (probably also on news.answers
etc) can be found at:
<URL:http://www.dc.net/ilazar/tcpipfaq/default.htm>
The raw IP networking FAQ (most interesting to those of use doing
custom clients or server inter-connects) can be found at:
<URL:http://www.whitefang.com/rin/>
The TCP/IP resources list has all sorts of useful pointers:
<URL:http://www.faqs.org/faqs/internet/tcp-ip/resource-list/index.html>
Including the various BSD socket programming tutorials:
<URL:http://ftp.std.com/homepages/jimf/sockets.html>
<URL:http://ccnga.uwaterloo.ca/~mvlioy/stuff/ipc_intro_tut.txt>
<URL:http://ccnga.uwaterloo.ca/~mvlioy/stuff/ipc_adv_tut.txt >
The Unix Refence desk is another good reference:
<URL:http://www.geek-girl.com/unix.html>
As is Unix Guru Universe:
<URL:http://www.ugu.com/>
And of course, W R Steven's page:
<URL:http://www.kohala.com/~rstevens/>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
7. Glossary of Terms
The list has managed to come up with its own jargon. Here are some of
the current buzzwords:
Cooperative role-playing: Refers to a specific kind of RP where each
player's personal 'storyline' is paramount. All players are aware
of, and sensitive to, the needs of each player for their story, and
all actions are completely consentual. This is a type of play often
found on MUSHes.
Event: A system design alternative to polling loops. Objects generate
events, which are processed in their proper order by the event
handler. This is frequently clearer and far more efficient,
especially with large numbers of objects. Examples are a torch
generating an event to burn out in two hours, or a spell generating
an event for an earthquake to occur in four seconds.
Faucet->Drain economy: A virtual economic system wherein there is an
ongoing influx of new items into the game (usually via a reset model)
and a hopefully corresponding outflow, usually accomplished through
object attrition involving equipment danage, rent fees, etc. It is worth
noting that traditionally, designers have been unable to easily come up
with a big enough drain to handle all the 'water.' This is as opposed to
a "Closed economy" in which an attempt is made to close the loop,
creating new objects only when old ones are used up. [Raph K]
Fixed random seeding: Using a fixed value (such as a character's
unique ID, or the character's position in XYZ space) to seed the
random number generator, assuring that the same random number will
always be rolled if the circumstances are exactly the same, but
requiring no storage. This allows parts of the world or its
behaviours to be dynamically generated from the seed value as
needed, and yet to have each "new copy" be the same as all the
others because the seed calue hasn't changed.
Fluidity of Identity: Referring to the difficulty of positively identifying
a single person who takes many guises in a game world. Any particular
action against one of those guises is fairly ineffective; they choose
another and continue. This makes it very difficult to pin down
troublemakers. ATtempts at identifying people based on their hostname
(site deny/allow), e-mail address (email registration), credit card number
(for commercial ventures), or just asking really, really nicely are all
easily circumvented, especially when it is easy to create new characters or
accounts (that is, the process is short and automated). This frequently
makes it difficult to implement 'real world' solutions to in-game problems
such as psychotic killing sprees. Once you catch someone and lock them away
or put them to death in RL, they are gone. When you do this on most muds,
they just log on two seconds later with another character.
Functional roleplaying: A kind of gaming, whilst GoP motivated, is heavily
tailored to the in-game reality. There's no thee's or thou's, or even
pretension of IC/OOC separation, but an awful lot of attention is spent
by the player in working his character thru the game realities rules as
it controls and affects his character. Examples would include
negotiation of reputation and influence systems, votes, political systems,
clans and guilds and other similar structures, etc. Appearance is not
the key. Function is. [JCL]
Global namespace: Referring to the fact that most muds rely on characters
(and sometimes other objects) are given a single and unique name.
Typing 'who' on most muds gives you a list of these; if you see
someone named Bob you know that he is the only Bob in the world, and
can't be confused with anyone else. This is as compared to a system
of generated descriptions to which players can attach proper names
as they please, which may or may not overlap or match up with the
names assigned by other players.
GoP: Short for 'game-oriented play' or possible 'goal-oriented play'.
This is usually a competitive style of play usually oriented around
the accumlation of various resources (money, power, combat ability).
Levels: For the purpose of keeping discussions generic, this term may be
used as an abstract measurement of a character's ability, skill or
expertise whether the game system is level-based or skill-based.
Eg: "If a low level character tries XXX a high level character..."
The precise details are not of interest as opposed to the impact and
result of the undefined imbalance.
Lockless server or DB:
Events request objects from the DB.
If the object is not in the cache, the DB loads the object.
The DB replies to the event with a read-only shared reference to the
object.
The event is added to the "interested parties" list for the object.
If the event attempts to modify the object, a new local, event-specific
copy of the object is made, and the changes are made to that. A copy
of the original reference however is still kept.
The event (loosely) attempts to keep track of what members of the
object it referenced.
During the execution of an event. all external IO is buffered and held.
Upon the event terminating it compares its copy of the original object
(the local reference) with the object that's actually in the DB (may
have been changed by events commiting during the current event's
execution). Some intelligence is attempted here to only compare those
values etc which were referenced by the event.
Should the original copy and the current-in-DB copy compare OK, then
the event commits, the IO is released, and all its changes in its
written-to copies are commited atomically. This is the
Compare&Commit, or C&C.
If the C&C fails, the event is thrown away, all the copies are released,
the IO is discarded, and the event is rescheduled to try again.
There is also some background intelligence here where the DB watches
the objects that are affected by event's C&C'ing, and will signal the
other events that are members of those object's interested party list
that they may be invalidated by the other event's C&C and so should
kill themselves and reschedule.
ref: DEMOS and the DOME project (JCL)
Markup language: An internal set of codes used by a server to generate
semi-dynamic messages. An example is "%c dives %I %o" which might result
in "Bubba dives behind the wall", "A woman dives into the pool", or
any number of other strings.
mud or MUD: It is not an acronym. It is a collective term for all the
types of games discussed on this list, including both RP and GoP.
[NB: Another description may be found at the list's homepage
<URL:http://www.kanga.nu/~petidomo/lists/mud-dev/index.html> ]
Object: Because most of the servers discussed here are
object-oriented, the word object is being used in its general
programming sense to include characters, locations, inanimate items,
and so forth, rather than referring to only inanimate items as is
typical in some mud servers.
Realism: This is not necessarily corespondance to the real world, but
rather refers to internal consistency. In many cases using the
working of real world systems (physics, for example) is a good
example for how to build a consistent system for a game world.
To quote:
"This is, of course, partially my invention, to suit the gaming world
we are working on, and is not intended to mirror Real Life - just to
borrow enough bits and pieces from it, so that it is recognized as
somewhat structured (rather than totally whimsical) to the player."
- Holly Sommer
Repop: See Reset.
Reset: Usually a function called in a mud at irregular intervals, the
purpose of which is to put back the game, or some fragment of the
game or game world into a known state. Typically this might mean
locking an opened door, or resurrecting an NPC that was killed by a
player and putting him back to guard the door, Resets and repops
are common on games that promote repetitive actions for advancement.
Skill net: A single layered skill web. Skills are directly weighted to
each other. See skill web (NY)
Skill tree: A skill system where skills have a single parent and
several children. A skills at the bottom of the tree being very
specialised. Skills higher up the tree will affect the value of
skills further down.
Skill web: a non-heirarchical two layered skill system wherin each
skill is weight-related to an arbitrary number of attributes, and
the improvement of skills therefore automatically improves related
skills. Examples of skills might be rowing and flycasting, examples
of attributes, strength (upper arm) and precision (forearm).
[Note: I triple weight my skill web, so that there are direct
connections to the condition of the character's body and mind, and
so that the resiliance of same are improved by conditioning. Nathan Y]
[Note 2: The web is modeled after a simple neural net design I found in
Dr. Dobbs' Journal. Nathan Y]
Verb binding: Attaching verbs to an object, such as 'fly' to a
jetpack. The command essentially does not exist when you don't have
the jetpack.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8. Changes, To Do & Acknowledgements
981110 -- Just found a long lost email for FAQ alterations.
FAQ: Changed MUD-Dev links from /index.html to /
The Members: Minor alterations to JCL's bio.
Resources: Link and brief for original ColdMUD added.
More links for Habitat added.
Displaced programmming links with those supplied by JCL.
980907 -- Resources: All things ansi and telnet related added.
980811 -- The Members: Matthew R. Sheahan's bio added.
Greg Underwood's bio amended.
Resources: Amit's Games Programming Page added.
Whole bunch of programming references added.
Glossary: "Fluidity of Identity" added.
980708 -- Snipped signatures from members' bios suggested by Alex Oren. :(
Minor typo and adjustments suggested by JCL. Overdue addition
of MUDDex and Lydia Leong's MUD resource collection to Resources.
"Faucet->Drain economy" term for Glossary added. Stole list
charter from homepage to act as a welcome message of sorts.
Small reorganisation of sections 1,2,3. Added Bartle's early
MUD history to web link in Resources. The Bungle link in Resources
disappeared, added back in, though different site. Quietly dropped
Derrick Jones' bio (was empty).
980506 -- Moved the changes list to a section in the back, only the most
changes since the last post appear here now. Appended Holly
Sommer quote to "realism" glossary term. Added "functional
roleplaying" glossary term. Updated Frequently Asked Questions.
Added networking tutorial web link to Resources. Added Bungle
web link to Resources.
980428 -- New scenarios section,a couple more glossary terms and more
member's bios.
980308 -- Mailing list invite.
980301 -- Even more addresses for the resource section.
980201 -- More bios, more addresses for the resource section.
980107 -- Added a few more questions. Previous topics now has its own
universe as suggested by Adam Wiggins. Plonked in a resources
section. Took out standard technical terms as suggested by Adam
Wiggins.
971201 -- FAQ created.
To Do:
Conventions of example scenarios (Bubba, Boffo, Buffy, etc)
List of references for specific scenarios/docs (Habitat/Great God GooGoo,
Crystalline Tree, recognising Sting in the weapons shop, etc).
Solutions for the scenarios?
Obtain addresses for the muds in the resource section.
Statement of topic definition (cf welcome message).
Update previous topics section.
Acknowledgments:
Everyone on the list who contributed with a bio, everyone on the
list who posts and special thanks to Jon A. Lambert, Adam Wiggins,
Nathan Yospe, Raph Koster and lastly but definitely not the least,
J C Lawrence.
More information about the mud-dev-archive
mailing list