openmw.org

A few tips about reversing Morowind's formulas :

• The dedicated wiki page is here. Be careful, not all formulas written here are exacts.
• The dedicated topic on bethsoft forum is here
• The uesp wiki is a great place to find stuffs.
• We can try to contact Hrnchamd and Psyringe, respectively developer and test of the MPC
• We can also try to contact Fliggerty, who might also know a thing or two about formulas
• I don't think it's really relevant, but we can try to contact timeslip too (MGE and many Morrowind's internal related work)
• When trying to get a formula, only change one parameter at a time

If you find something, don't forget to put it here

For contacts, we should coordinate our efforts, in order to avoid spamming : please state here who you are contacting.

A few days in bed (picked up some virus) and so many posts about this.

Anyway, from page 142 (156 physically) of MMM_Manual ( http://min.us/mChxB3o1o ):

In many cases where you see Base and Mult game settings, the formula they're involved in is a standard linear equation in the form y = mx + b, where m is the mult, b is the base, and x is some attribute, skill, or other value.

This may save a little bit of work for someone.

I've uploaded MMM Manual to minus.com (link again: http://min.us/mChxB3o1o ) because this forum says "The file is too big, maximum allowed size is 512 KiB.". Anyway, MMM Manual is free for non-profitable use so it should be okay to use it for OpenMW.

After few hours of inventing the empiric buy price formula for items: Please check this. It seems to be fairly accurate.

Wow, nice. I will add that right away. Do you have any idea about the chance that the NPC accepts your offer? (if you leave the price at default, they always accept, i think)

scrawl wrote:Wow, nice. I will add that right away. Do you have any idea about the chance that the NPC accepts your offer? (if you leave the price at default, they always accept, i think)

It will require much more trade tries for model with strong correlation. If I will have a huge amount of free time I'll do that work .

Sadler wrote:After few hours of inventing the empiric buy price formula for items:

Code: Select all

Buy_Price = Base_Price * (210 + Merchant_Mercantile - Player_Mercantile - Relation) / 161

Please check this. It seems to be fairly accurate.

Seems pretty accurate, but shouldn't it involve "luck" as well?

Necrod wrote:Seems pretty accurate, but shouldn't it involve "luck" as well?

Oh, maybe. Give me a a few minutes, I'll check this.

Player-merchant luck difference changes the cost. About 10-15% for luck change from 0 to 100.

We may simply add the correction: Not so straight as first formula, but must work.

I reckon, some of the numbers should be GMSTs and not hardcoded. I don't have access to Morrowind right now, so I can't help with that, but you could use some mod that changes trading significantly (e.g. BTB GI Settings) for reference.

MMM Manual has most (if not all) game settings' default values and descriptions on page 142 (156).