Metabolism Questions


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Post Thursday, 26th January 2012, 19:06

Metabolism Questions

Ok, wasn't sure on which forum section to post this but here goes:

I have some questions about metabolism values which I'd like explained.

These are the crawl_changelog.txt entries that caught my eye mostly:

  Code:
2399618 | Adam Borowski | 2011-12-07 11:29:37 +0100

For races other than Ce, Og, Tr and Op, don't pickup extra rings of sustenance.
For extras to be useful you'd have to wear troll leather armour or have the
fastmeta mutation.

Octopodes are likely to wear regeneration, and they're the one species who
can wear two sustenances together with regen.


And this is from an older update:


  Code:
1aa6f8f | Michael Gagno | 2011-11-12 05:16:21 -0800

Change ring of sustenance formula (relative rather than absolute).
Previously: each ring subtracted 2 from your hunger rate (normal rate is 3).
This was problematic, in that it made the ring nearly useless for trolls
(hunger rate 9).

The new formula makes a single ring of sustenance halve your hunger rate
(rounding down), with two rings cutting your hunger rate to 1/3. Therefore,
there's no change to hunger rates 3 (most races) and 4 (centaurs, ogres),
which will get their rates reduced to 1 and 2 respectively. This makes a big
difference for trolls though, as well as any character with a high level of the
fast metabolism mutation.

This should help the issue of extended endgame trolls having food issues. If
this change isn't enough, the formula could be made so a single ring thirds
your hunger rate.


Which was immediately followed by this:

  Code:
78cd2f8 | elliptic | 2011-11-12 10:05:31 -0500

Tweak the effect of ring of sustenance a little more.
It is a little less good now for players with high metabolism (or
metabolism-increasing effects like regeneration or haste), and it is also
placed at the correct location in the function.

It still changes hunger per turn from 3 to 1 and from 4 to 2 like the old ring
did.


My questions are:

It says so in the first entry, but does Troll leather armour really affect your metabolism at all? If it does, I didn't know that or haven't noticed in-game. It may be subtle, I guess. The item description doesn't say anything about increased metabolism as far as I know, only says it grants "Troll-like" regeneration, unlike ring of regeneration which specifies that your metabolism gets faster.

Speaking of rings of regeneration; Do they stack? By how much exactly do they affect your health regen and metabolism value? Another major concern of mine is, does the increased hunger kick in only when healing or all the time you have the rings equipped? On the silly side, what would be the health regen and metabolism value of an octopode with 8 such rings (a highly unlikely and inconvenient scenario food clock-wise, I understand)?

What's the metabolism value for slow metabolism 1, 2 and 3 and fast metabolism 2 species? Do acquired (non innate) metabolism mutations get treated the same as innate ones (say a human mutates and gets Fast Metabolism 3, if he equips a ring of sustenance, will it have the same effect as it would on a Troll?)?

How much does a ring of hunger and the hunger/hunger+ tags affect your metabolism value?

And the most important one: How does elliptic's update affect the metabolism game exactly?
MuCK;
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Ziggurat Zagger

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Post Thursday, 26th January 2012, 19:46

Re: Metabolism Questions

The intent of this entry (2399618 | Adam Borowski | 2011-12-07 11:29:37 +0100) was probably a result of my complaints regarding automatically picking up multiple teleportation rings.

How Many Teleportation Rings do I need?
https://crawl.develz.org/mantis/view.php?id=5016

At this point, I realize that the effect of wearing 2 rings of teleportation increases the chance of a random teleportation taking place (according to KiloByte's response in the bug chatter).

I think the multiple rings of sustenance thing was an interpretation of this bug by galehar.
Last edited by XuaXua on Thursday, 26th January 2012, 19:50, edited 2 times in total.
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Ziggurat Zagger

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Post Thursday, 26th January 2012, 19:48

Re: Metabolism Questions

The second update looks like it changed it from a formula of:
hunger / (1 + rings of sustenance worn) (i.e. hunger divided by 2 wearing one ring or divided by 3 wearing two rings)

to a formula of:
3 * hunger / 5 applied once for one ring and twice for two rings

So under the first formula, a troll with hunger rate 9 wearing one ring has a hunger rate of 4, and wearing two has a hunger rate of 3. Under the second formula, the troll has a rate of 5 with one ring and 3 with two rings.

To answer your questions about regeneration and hunger in general, I think the Knowledge Bot entries are the best source to refer to:
http://crawl.develz.org/info/index.php?q=regeneration

http://crawl.develz.org/info/index.php?q=hunger%20rate

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Eringya's Employee

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Post Thursday, 26th January 2012, 20:13

Re: Metabolism Questions

Thanks a lot for the advice BlackSheep.

I feel really stupid for not checking the knowledge bots more regularly. :|
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Snake Sneak

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Post Friday, 3rd February 2012, 14:37

Re: Metabolism Questions

I may have read it wrong, but according to the KB on Regeneration linked above, regen should take several turns to grant 1HP for most characters. However, it always provides 1HP per turn. Could it be rounded up each turn?

Ziggurat Zagger

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Post Friday, 3rd February 2012, 18:14

Re: Metabolism Questions

You need to be more specific. Regeneration the spell provides enough extra rate to guarantee at least 1 HP per turn (100 extra regen rate). Do you mean that the ring seems like it should take several turns to grant 1HP? I'm testing in wizard mode now, and it definitely doesn't provide 1HP/turn.
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Dungeon Master

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Post Tuesday, 7th February 2012, 16:53

Re: Metabolism Questions

XuaXua wrote:I think the multiple rings of sustenance thing was an interpretation of this bug by galehar.

I wasn't involved in those changes.
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Ziggurat Zagger

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Post Tuesday, 7th February 2012, 18:41

Re: Metabolism Questions

galehar wrote:
XuaXua wrote:I think the multiple rings of sustenance thing was an interpretation of this bug by galehar.

I wasn't involved in those changes.


Well, I blame you for everything anyway.

Especially the removal of Mountain Dwarves.
"Be aware that a lot of people on this forum, such as mageykun and XuaXua, have a habit of making things up." - minmay a.k.a. duvessa
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Barkeep

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Post Tuesday, 7th February 2012, 20:01

Re: Metabolism Questions

Dude, you gotta put a smiley on that. Mountain Dwarf Removal is still a dangerous topic ;)
I am not a very good player. My mouth is a foul pit of LIES. KNOW THIS.
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Ziggurat Zagger

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Post Tuesday, 7th February 2012, 20:31

Re: Metabolism Questions

njvack wrote:Dude, you gotta put a smiley on that. Mountain Dwarf Removal is still a dangerous topic ;)


I think it's pretty well known I stayed the heck out of that mess.
"Be aware that a lot of people on this forum, such as mageykun and XuaXua, have a habit of making things up." - minmay a.k.a. duvessa
Did I make a lame complaint? Check for Bingo!
Totally gracious CSDC Season 2 Division 4 Champeen!

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