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Old 09-18-2017, 09:19 AM
Daldaen Daldaen is offline
Planar Protector


Join Date: Jun 2010
Location: Kedge Keep
Posts: 9,062
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http://mboards.eqtraders.com/eq/show...Tanker-handout

Quote:
About the skillup formula:

(This is a direct copy of the handout Tanker passed out at the Fan Faire, with a few corrections of typos. Tanker refused to email me a copy of his document, so there is a risk of transcription errors.)

Background

In order to explain how the formula was changed in as simple a fashion as possible, it's necessary to describe the formula as it sat before the changes made this Spring. The tradeskill formula has 2 parts, or Passes. Every time a tradeskill is attempted that can possibly give you a skillup, i.e., is not trivial, etc.), the formulae are run, and the player must succeed both Passes in order to gain a skillup.

Old Formula, Pass 1

Pass 1 of the skillup formula is as follows. Note that the chance to pass is a value between 0 and 100.

%-chance to pass = ( (S * 10) / (Y * D) ) / 10.0

D = 1 if the tradeskill attempt was successful at making the primary result, 2 otherwise.
Y = skillup difficulty of the current skill (for tradeskills, this is either 2, 3, or 4 currently). (Kyros note: see below for more on this factor.)
S = Player stat used for this tradeskill. For most skills, it is the higher of your WIS or INT, minus 15. For Smithing, it's the higher of your WIS / INT / STR (no minus 15). For Fletching and Make Poison, it's the higher of your WIS / INT / DEX (no minus 15).