Calculating Potion Stats?

[Wehmut]

Has anyone in here tried to figure out how potion values

are calculated? I wonder if it is possible at all.

 

The easy part is that for a given value p the potion effect

magnitude m is (p/4)^0.5, and the effect duration d is m*4.

So we only need to calculate p.

 

Calculating p, however, seems more or less impossible to

me. I know that the fMagicCostScale constant figures in

some way, probably as an exponent[1]. But where and how?

 

For fMagicCostScale=1, the p of a potion made of the first

effects of its ingredients can be calculated as

 

p = (Q*2.5 + A*10) / BaseCost

 

with Q being the Quality of the Mortar and Pestle, and A

the player's alchemy skill. For instance, with BaseCost=0.01

(this is so you get large values for p) and Q=25 (that is an

Apprentice's Mortar and Pestle), you get potions with

 

m~=40; d~=158 for A=0

m~=119; d~=474 for A=50

m~=163; d~=652 for A=100

 

If you ignore that m and d are rounded ingame, this

results in p=6250, p=56250 and p=106250, respectively.

 

But I lack the mathematical background to go from there.

If I set D=25, A=0, BaseCost=0.01 and change only

fMagicCostScale, I can't make any sense of the resulting

values of p:

 

fMagicCostScale=1 --> p=6250 (that's Q*250)

fMagicCostScale=2 --> 529<=p<=540 (that's Q*21,16 to Q*21,6)

fMagicCostScale=3 --> 152<=p<=168 (that's Q*6,08 to Q*6,72)

fMagicCostScale=1.1 --> 4390<=p<=4455 (that's Q*175,6 tp Q*178,2)

 

So what does that tell me?

 

Another thing is that the A*10 part can't be right either, because

with fMagicCostScale>1 p no longer grows linearly for growing

values of A - changing A from 0 to 10 makes much more of a

difference than changing A from 90 to 100. So there must be

a A^(1/fMagicCostScale) in there, or something, mustn't there?

So perhaps it's D^(1/fMagicScale), too?

 

Well, right now I'm lost. Anyone?

 

 

[1] The thing called "Total effect cost", for instance, is calculated

as BaseCost * (Duration / 10) * Magnitude^fMagicCostScale.

For Alchemy, however, neither the "Duration" nor the "Magnitude"

setting seem to have any influence.