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<H1>Re: [MUD-Dev]  Virtual Chemistry</H1>
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<LI><em>To</em>: <A HREF="mailto:mud-dev#null,net">mud-dev#null,net</A></LI>
<LI><em>Subject</em>: Re: [MUD-Dev]  Virtual Chemistry</LI>
<LI><em>From</em>: Matt Chatterley &lt;<A HREF="mailto:root#mpc,dyn.ml.org">root#mpc,dyn.ml.org</A>&gt;</LI>
<LI><em>Date</em>: Sat, 2 Aug 1997 17:30:50 +0000 (GMT)</LI>
<LI><em>Reply-To</em>: <A HREF="mailto:neddy#itl,net">neddy#itl,net</A></LI>
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<PRE>
On Sat, 2 Aug 1997, Marian Griffith wrote:

&gt; On Wed 30 Jul, clawrenc#cup,hp.com wrote:

[Snip my original post again]

&gt; &gt; First thoughts on a representational model:
&gt; &gt; Thus the leaves of the herb WaggaWagga might have a coordinate weight
&gt; &gt; of (-5, 8, 3) presuming the simplistic case of only 3 principles.  The
&gt; &gt; root of the UmbaUmba plant might have a value of (2, 9, -10).  Mix
&gt; &gt; then together with GooGoo mud (0, 0, 2), and you get a substance (-3,
&gt; &gt; 17, -5).  That location can be plotted in the coordinate system and a
&gt; &gt; result computed:
&gt; 
&gt; Admitting immediately that the finer points of all the above are proba-
&gt; bly missed by me, this seems to me to be rather predictable. If you put
&gt; two sleeping potions together you get a stronger sleeping potions?
&gt; You would at least need a way to make sure that you cannot just mix two
&gt; or three ingredients together and  get potion or poultice.  And equally
&gt; important:  even if both the herb WaggaWagga and the UmbaUmba plant are
&gt; known for their sleep inducing qualities  that should not mean that you
&gt; can just replace the one with the other and get a similar result.  That
&gt; is what makes alchemy an art and a lore.

You need notions of quantity, and concentration to ensure mixing two
identical potions together produces a double-mass of potion, rather than a
single mass of double-strength potion, and also that mixing potion A with
concentration 0.5 and potion B, identical except its concentration is 0.7,
gives you a double-mass of potion C, identical but with concentration 0.6.
 
&gt; &gt;   A minor weakening agent (-3) that also a *really* effective sleeping
&gt; &gt; draught (17), and reduces physical dexterity (-5).
&gt; 
&gt; First off. You could start with having the numbers represent general ef-
&gt; fects rather than specifics. That way to create a sleeping potion you'll
&gt; have to create a high value for several of those numbers.

Having specific effects would be nasty by virtue of the sheer volume of
coordinates required. Generalisation to perhaps a dozen, and using
combination of these is probably best.

&gt; Secondly I think it would be better if  unless only specific numbers are
&gt; high and all others are low but not too low the potion just does not  do
&gt; much useful.  I.e. a potion in which all numbers are high is just a kind
&gt; of muddy water.  Nourishing perhaps  but not magical/mystical in nature.
&gt; And potions that have very high negative values act the same as high po-
&gt; sitive values.

Not necessarily water - but something unremarkable perhaps. Something with
very high values for everything might be very acidic, and a good magical
electrolyte, but unremarkable otherwise. Negative values are merely the
reflection of positive ones - ie, a very negative acidity would be a very
positive alkalinity.
 
&gt; &gt; The reason for doing a coordinate system rather than a flat expression
&gt; &gt; for each axis is that it allows you to put in break values.  Simple
&gt; &gt; things like values on this axis smaller than X have this effect, and
&gt; &gt; larger than Y have this totally other effect.  Compound that across
&gt; &gt; multiple axis, and you can get a result which is far removed from the
&gt; &gt; initial components.
&gt; 
&gt; I don't think I know what this means but no doubt it makes sense :)

It does, if I understand correctly. If X is less than Y, it does this, but
if it's larger than Y, it does that. Where Y is a definitive and specific
value.

&gt; &gt; Next up would be to then special case certain combinations (reflective
&gt; &gt; alchemy), such that components A (which normally has a very simple
&gt; &gt; effect), and B (similarly simple), in combination do something else
&gt; &gt; entirely (ie mutate into a totally different coordinate.
&gt; 
&gt; Which is quite the point of alchemy. You combine ingredients and rituals
&gt; that in and of themselves do nothing special  and get a result that does
&gt; something useful.

This is bringing in another issue - that of external influences on
reactions (eg magical chants, special instruments, etc). I intend to have
a 'mixing' function that will take arguments of the compounds, and any
special conditions which apply.
 
&gt; &gt; This special casing can be handled without undue difficulty by
&gt; &gt; building it into the base system.  Again, going back to the simplistic
&gt; &gt; 3 principles above, just add various other "fake" principles after
&gt; &gt; that.  Thus WuggaWugga could be (-5, 8, 3, 0, 12, 2) and UmbaUmba (2,
&gt; &gt; 9, -10, -5, 9, -10).  Then when they're mixed the result is (-3, 17,
&gt; &gt; -2, -5, 21, -8).  Now you can do your special casing on the fake
&gt; &gt; values (-5, 21, -8).  Say things like if the first fake value is less
&gt; &gt; than -5 it was apply (X,Y,Z) to the base matrix, it its over +5 apply
&gt; &gt; (Q,R,S) etc.  This results in a really simple way to codify the
&gt; &gt; exceptions and and special cases while allowing new components to be
&gt; &gt; added which have their own unique behaviour.
&gt; 
&gt; This sounds rather complicated to me. Isn't there a way to do this
&gt; without math?

There is, but it's really a non option if you intend on any amount of
chemicals, or chemicals that do not have to be centrally registered.
 
&gt; marian
&gt; -- 
&gt; Yes - at last - You. I Choose you. Out of all the world,
&gt; out of all the seeking, I have found you, young sister of
&gt; my heart! You are mine and I am yours - and never again
&gt; will there be loneliness ...
&gt; 
&gt; Rolan Choosing Talia,
&gt; Arrows of the Queen, by Mercedes Lackey
&gt; 
&gt; 
&gt; 
&gt; 


Regards,
	-Matt Chatterley
	<A  HREF="http://user.itl.net/~neddy/index.html">http://user.itl.net/~neddy/index.html</A>
"Doublethink means the power of holding two contradictory beliefs in one's
	mind simultaneously, and accepting both of them." -George Orwell


</PRE>

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<ul><li>Thread context:
<BLOCKQUOTE><UL>
<LI><STRONG>Re: [MUD-Dev]  Virtual Chemistry</STRONG>, <EM>(continued)</EM>
<ul compact>
<ul compact>
<ul compact>
<ul compact>
<ul compact>
<LI><strong><A NAME="00564" HREF="msg00564.html">Re: [MUD-Dev]  Virtual Chemistry</A></strong>, 
clawrenc <a href="mailto:clawrenc#cup,hp.com">clawrenc#cup,hp.com</a>, Thu 14 Aug 1997, 20:43 GMT
</LI>
</ul>
</ul>
</ul>
<LI><strong><A NAME="00336" HREF="msg00336.html">Re: [MUD-Dev]  Virtual Chemistry</A></strong>, 
Marian Griffith <a href="mailto:gryphon#iaehv,nl">gryphon#iaehv,nl</a>, Sat 02 Aug 1997, 19:12 GMT
<UL>
<LI><strong><A NAME="00480" HREF="msg00480.html">Re: [MUD-Dev]  Virtual Chemistry</A></strong>, 
clawrenc <a href="mailto:clawrenc#cup,hp.com">clawrenc#cup,hp.com</a>, Tue 12 Aug 1997, 01:07 GMT
</LI>
</UL>
</LI>
<LI><strong><A NAME="00337" HREF="msg00337.html">Re: [MUD-Dev]  Virtual Chemistry</A></strong>, 
Marian Griffith <a href="mailto:gryphon#iaehv,nl">gryphon#iaehv,nl</a>, Sat 02 Aug 1997, 19:13 GMT
<UL>
<LI><strong><A NAME="00338" HREF="msg00338.html">Re: [MUD-Dev]  Virtual Chemistry</A></strong>, 
Matt Chatterley <a href="mailto:root#mpc,dyn.ml.org">root#mpc,dyn.ml.org</a>, Sat 02 Aug 1997, 23:31 GMT
</LI>
<LI><strong><A NAME="00369" HREF="msg00369.html">Re: [MUD-Dev]  Virtual Chemistry</A></strong>, 
Adam Wiggins <a href="mailto:nightfall#user1,inficad.com">nightfall#user1,inficad.com</a>, Mon 04 Aug 1997, 15:33 GMT
</LI>
</UL>
</LI>
</ul>
</ul>
</LI>
<LI><strong><A NAME="00101" HREF="msg00101.html">C&amp;C and Event Rescheduling</A></strong>, 
Shawn Halpenny <a href="mailto:malachai#iname,com">malachai#iname,com</a>, Sat 12 Jul 1997, 04:04 GMT
<UL>
<LI><strong><A NAME="00151" HREF="msg00151.html">Re: [MUD-Dev] META: C&amp;C and Event Rescheduling</A></strong>, 
clawrenc <a href="mailto:clawrenc#cup,hp.com">clawrenc#cup,hp.com</a>, Thu 17 Jul 1997, 03:13 GMT
</LI>
<LI><strong><A NAME="00152" HREF="msg00152.html">Re: [MUD-Dev]  C&amp;C and Event Rescheduling</A></strong>, 
clawrenc <a href="mailto:clawrenc#cup,hp.com">clawrenc#cup,hp.com</a>, Thu 17 Jul 1997, 03:33 GMT
</LI>
</UL>
</LI>
</UL></BLOCKQUOTE>

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