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  #1  
Old 02-21-2014, 10:28 AM
Mirana Mirana is offline
Kobold


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Default Effect of attack rating on DPS

(I did a search and could not find anything, so please don't yell at me).

I'm trying to understand the exact implications of strength and attack on my damage (sorry, I'm an engineer, I need transparency).

I was looking at Yaolin's monk/warrior weapon dps charts. He mentions that:

"DMG ratio" = (dmg*2+Bonus)/delay &
"Max Hit" =(((OFFENSE+STR)/100)*DMG)+DMG BONUS

And I'm good with all that, it makes sense. Every 10 strength or 10 "offense" increases your max hit by one point of damage. But what I can't find is how attack rating impacts how often you hit in the higher end of your range. Obviously, more weapon skill and strength = more attack rating which means you will hit for your max (or near your max) more often. I understand it also depends on monster AC. Does anyone have the formula for calculating effective DPS, taking into account attack rating?

Please don't tell me to parse it, I've already looked at several parses. I'm interested in a formula. I like being able to calculate the exact dps increase I will get from buying a hero bracer, because I'm a nerd and it's fun to me.

Thanks.
  #2  
Old 02-21-2014, 10:47 AM
Buriedpast Buriedpast is offline
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STR is not ATK.

Dont confuse them.
  #3  
Old 02-21-2014, 10:54 AM
Weltmacht Weltmacht is offline
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It would seem as if OP is doing an extraordinary job of *not* confusing them. Would you happen to know the answer to his question?
  #4  
Old 02-21-2014, 10:59 AM
imajester imajester is offline
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Wouldn't it be possible to just look at the eqemu source to see how the calculation is done?
  #5  
Old 02-21-2014, 11:05 AM
Mirana Mirana is offline
Kobold


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Quote:
Originally Posted by imajester [You must be logged in to view images. Log in or Register.]
Wouldn't it be possible to just look at the eqemu source to see how the calculation is done?
Where would I find this? I'm guessing it's a text document in my program files? I'm familiar with basic coding language and stuff but not much of a computer whiz.
  #6  
Old 02-21-2014, 11:12 AM
imajester imajester is offline
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I believe here...

https://code.google.com/p/projecteqemu/source/browse/

I am going to dig around and see if I can find the calc.
  #7  
Old 02-21-2014, 11:12 AM
Daldaen Daldaen is offline
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Quote:
Melee Damage

Brohg writes the following description of melee damage recieved from mobs: "Mob damage is two parts, DB (Damage Base/Bonus or Fixed Damage /Vig), and (1-20)*DI, which is Damage Interval. You can see this by parsing, that there are 20 discrete amounts of damage any mob can deal on a successful hit. It's not quite /random 1 20, because AC makes a big huge difference in how many low hits you have, but you still have the whole range.
If a mob has a damage base of 200, and a damage interval of 20, then (once they hit you) they'll deal either 220 damage, or 240, 260... etc ... 580, or 600 damage."

"High AC (from gear /Vig) reduces the damage taken from the (1-20)*DI portion a lot, making many more low #*DI than high."

So all melee damage has two parts, one wich is random and affected by the AC on your gear, and one part that is never modified by AC. The Shielding effect in particular is extra interesting heresince Shielding affects only the Fixed Damage (and is the only thing that affects it), not the random Damage Interval.


Armor Class

Armor Class is what decides how much damage you take and how often you take damage. It mitigates damage and it makes the mob miss it's attacks against you. The first part of the AC is "mitigation AC" wich is calculated from the worn AC you gain from your gear. Taraddar writes: "Your "mitigation" ac comes from the AC on your gear and is what effects the distribution you get in the 1-20 portion of attacks. Higher ac gets more lower hits etc."

This means that the gear you wear decides how much of the random part ie Damage Interval (as described above) of the damage coming your way actually hits you.

The other part of AC is the "avoidance AC" wich is defined by your Defense Skill and your AGI stat. Taraddar writes: "Normally your defense skill and agility contribute to your "avoidance" ac and increase your chance of being missed. AC from gear doesn't effect this at all."


Attack

Attack, like AC, is also composed of two parts. One is based on your Strength and wielded weapon to decided how hard you hit the mob when you connect. Let's call this Power. Brohg writes: The Power part of Attack is how hard you hit, when you hit. No amount of power will raise your max hit, but those who are familiar with the (1-20)*DI nature of Everquest damage will understand that shifting your average hits higher on the 1-20 scale will lead to much more overall damage. This is what Power does. Power is modified by Offense skill, Strength score, and +ATK mods on items. In combat, Power is opposed by the target's Mitigation.

The other part of Attack decides how often you hit. This is based on your weapon skills. We can also safely assume that your Offense skill is also one part of the calculation. Again, Brohg teaches us: "Displayed "Attack" is Accuracy+Power. Accuracy is how likely one is to hit one's target, and in combat is compared to the Avoidance part of AC (more on that later). Accuracy comes from two sources, Weapon Skills and +Accuracy mods on items."
Is a solid description of how EQ mechanics work... But it doesn't have an exact ATK formula. Just what factors in, no numbers.
  #8  
Old 02-21-2014, 11:31 AM
koros koros is offline
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Atk affects the skewness of the hit distribution curve. General rule on live during Velious was that 10 atk = 1% dps increase at around 1000 atk vs level 60ish npcs. There's going to be some second derivative action going on making it hard to predict exactly how atk alters the curve, especially without hard numbers.
Last edited by koros; 02-21-2014 at 11:33 AM..
  #9  
Old 02-21-2014, 11:32 AM
koros koros is offline
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Quote:
Originally Posted by imajester [You must be logged in to view images. Log in or Register.]
I believe here...

https://code.google.com/p/projecteqemu/source/browse/

I am going to dig around and see if I can find the calc.
Please do post if you find anything solid.
  #10  
Old 02-21-2014, 11:50 AM
Swish Swish is offline
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If a druid offers you wolf form, take it [You must be logged in to view images. Log in or Register.]
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