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Final Fantasy XI Discussion Board	Discussion Boards -> General
Melee Damage Calculation

From: Ismarc
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Posted: 2005-07-22 13:09:33

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Hi,
Recently I began having people tell me this attack + was better than this str + and whatnot as a monk. So after looking at parser info, and looking around on the internet, I dug up some info on how to actually calculate min, max and avg damage once you know the monsters vit and def. Now, after compiling this mess of formulas, listed with it was ways to figure monsters vit and def.

So basically once you have weapon damage, attack, str, your min damage, max damage and average damage, you can figure the vit and def of the monster. Then plug in the vit and defense and the str and attack you're interested in trying out, and you will get min, max and avg damage.

Now, rather than sit there for 20 minutes with a calculater, I'm currently writing a php script to do all the calculations for you, making it a quick process to check and see what changing gear would do.

My main question is, would this be useful to have available for other people to use? I really have no idea how many people would even believe that sometimes it really is better to equip that str+4 instead of attack +20 gear (monk af hands vs. ochiudo's kote).

I don't have anywhere to host the calculater currently, but don't want to even start looking until I have a little bit of feedback about whether it would be useful or even used first.

Thank you,
Ismarc
Seraph

From: Sheeny
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Posted: 2005-07-22 15:33:21

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I'm a 75BST and my Adaman equipment is all (aside from Hauberk) +atk and my damage in HNM fights was pitiful. Understanding that I'm just a BST and not designed to be a heavy damage dealer, I still wanted to increase my damage wherever possible. I tried replacing +atk gear for +str gear and did see a slight increase to Rampage (str based), but overall there's very few obvious equipment choices as it's trading amounts of +ATK for amounts of +STR. And the whole damage formula is far too complicated for me to understand.

In summary: God yes, I'd love a calculator! I eventually gave up on trying to decide which gear to use and this would be let me optimize myself as I've always been wanting to do.

From: EvilivE Guest Posted: 2005-07-23 12:22:57	Reply Quote
Yes I would also love to find out what would be best to equip for DMG I am also a BST and a taru. This would be god sent for i too do not understand the calucator.

From: Parzival Registered User Posted: 2005-07-24 20:45:05	Reply Quote
You'd be a god among men if you could make a practical, easy to use calculator.

From: Ismarc
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Posted: 2005-07-25 01:13:00

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Well, going by the each person that responds actually represents 15 people, a decent number would actually like it, so I'm going to start looking for somewhere to host it.

At the current time, the information required is
Your STR
Your Attack
Your Weapon's damage
Your Minimum damage (from one monster)
Your Average damage (from one monster)
Your Max damage (from one monster)

So it's not necessarily something you could just plug in your stats, you'd have to use a parser, or go back in the log to figure out the last 3 numbers. As soon as I have a better system for determining monster's vit and defense, the min/avg/max damage won't be needed.

Then again, as soon as I have a good system for vit and def of the monster, I'll be able to determine str, att and weapon damage, meaning tanks could use a similar calculator for figuring how much damage they would take.

So...I've got the beginnings of it ready, really just trying to break it before I say it's ready to put up. When it is up and ready, I'll go ahead and post back here with the link.

-Ismarc

From: Akumasama
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Posted: 2005-07-25 03:20:47

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I would love to see a damage calculator!!! Even though I never remember the base damage of hand to hand (I guess by know everybody knows that h2h weapon ADD damage to a base damage you do even w/o weapon).

Oh another question... maybe someone knows where I can find a list of how abilities and WS are related to stats?

For example... Chakra is related to VIT (the more VIT, the more HP u get back), Chi Blast to MND (the more MND, the more base damage), and Rampage is based on STR (the more STR, the more damage).

Sometimes it's obvious, sometimes that ability is very "famous" so you know what it's based on, some other times you don't really know and you wish you did. Isn't there somewhere a DETAILED page that explains this relation? It would be a shame to search inside different forums and threads for each ability you want to know...

From: Ismarc
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Posted: 2005-07-25 07:08:28

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Beautiful source for WS info:
http://ffxi.allakhazam.com/journal2.html?user=313276&mid=1099606680697846812

Unfortunately, I couldn't find the discussion about stats used with job abilities. In the meantime, I found this link again http://www.moonlight.gr.jp/~el/ffxi/backstub.html.en what this is is a damage calculator for job/thf or thf/job and figuring backstab damage. It also seems to figure normal hit damage (not real sure, the english translation of the site isn't that great), but seems to guess at the range of vit and defense for the monsters.

It also seems to be a bit off in the calculations, but that is probably because it doesn't figure in attack at all, or maybe because it's only figuring actual backstab damage. Either way, more info and tools to play with until mine is finished.

-Ismarc

From: Palos Administrator Posted: 2005-07-27 13:32:28	Reply Quote
Quote from: Ismarc I don't have anywhere to host the calculater currently, but don't want to even start looking until I have a little bit of feedback about whether it would be useful or even used first. Sounds like a useful utility. We'll host it for you at somepage.com if you'd like. Just leave feedback how to get in touch with you :) -- Palos

From: Ismarc
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Posted: 2005-07-30 11:12:29

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Sorry for the delay in responding, work and work on the calculator have taken up a lot of my free time. I believe I have all the formulas to an accurate point, but I've only really tested it at 12-20 level range and 56-58 level range. I have also started gathering data to build the formulas for a defense calculator for tanks.

On having somepage.com host the calculator...I would be absolutely thrilled to have it hosted here. I've been visiting somepage.com since it was www.somepage.com/ffxi and was a short list of links and have seen it grow into what it is today. In a little bit I am probably going to throw the final touches on the formula for now, then try to break it on my test server here at home, so it should be available very soon!

-Ismarc

From: CrashenX Guest Posted: 2005-07-30 22:50:17	Reply Quote
If you could also post the actual formulas you are using or a source where I could find them that would be helpful. I think the calculator would be very helpful but i'm also interested in how the dmg is actually calculated. Thanks ~CrashenX

From: Ismarc
Registered User
Posted: 2005-08-03 08:56:15

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Hi,
Well, as of right now, my desktop is hosed, with no idea what's wrong. Later today I'm going to be replacing the motherboard, processor and video card. However, the hard drive that has all my bookmarks and updated formulas is not the reason it's hosed, and should still be working fine. In the mean time, the formula's I started working with can be found here ffxi.allakhazam.com/forum.html?forum=10&mid=1095981847318723783.

He has another website I couldn't remember/find the link to that no longer relies on normal distributions for calculating the damage. The problem I've run into is that his formula's favor an exceptionally high defense with an exceptionally low vitality (my calculations vs. crabs levelling at 58 had a vit of less than 50 and a defense of about 400).

I would post just the formulas, or even the gist of his results, but in honoring his wishes about copyright, a link to the material is provided. However, after being unable to contact him about using his formulas directly for the calculator, I have been looking at how different my formulas need to be to be considered a derivative rather than a copy of his work (and believe me, at this point it's hard to tell I even started at the same point).

The formula's I have right now are basically (as I remember):
minimum_damage = weapon_damage * ln(attack/enemy_defense)
maximum_damage = weapon_damage * STR/VIT + minimum_damage

While these appear to produce accurate results (including calculating defense and vit), it doesn't seem quite right because an increase in attack seems to always outweight an increase in str for determining maximum damage.

Right now, if my desktop is back up and running later, I should have the calculator completely finished and ready for the public to try and break by thursday evening.

-Ismarc

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Melee Damage Calculation