| Re: Formulae for population change on negative hab planets? |
Thu, 04 May 2017 00:41   |
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 magic9mushroom |
 | Commander |
Messages: 1361
Registered: May 2008 | |
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Daniel wrote on Wed, 03 May 2017 22:34For Stars! Nova I have the growth rate formulae for normal planets and for overcrowding from the Stars! wiki. Does anyone know the exact formulae for negative hab planets? IIRC negative hab planets also have a lower population limit for calculating max factories of 25,000? Does this factor into crowding effects?
The Pop * growth-rate * hab value formulae will produce negative growth on negative hab worlds, but it will be more negative for high growth rate races, which seems odd.
On negative hab worlds the negative growth is 0.1 * pop * hab value. So if you have 300,000 pop on a -10% red, you'll lose 3,000 (1%). On a -45% red you'd lose 4.5% of your pop.
Red, yellow, and <5% green worlds are treated as having 5% habitability for the purposes of determining population cap; an OBRM race that isn't HE/AR/JoaT has a cap of 55,000 pop on such worlds (pop over 100% up to 300% - 55k to 165k, in this case - receives half pop resources but can't operate installations, as usual). However, there are no overcrowding deaths on red and yellow planets, just the deaths from negative hab.
EDIT: Incidentally, for AR (whose pop cap is invariant based on starbase, but whose resource efficiency varies with hab) the minimum hab for resource calculation is 25%. So a red can produce 1/4 the resources of a 100% green instead of 1/20... the catch is that you need just as much pop as for that 100% green, rather than 1/20 as much.
[Updated on: Thu, 04 May 2017 00:52] Report message to a moderator
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