TankPoints 2.0 - A benchmark for survivalbility gear

About TankPoints

TankPoints was created to help myself compare different pieces of tanking gear, because it was difficult to decided at a glance like whether 12 defense is better then 1 dodge.

TankPoints can be seen as how much damage you can take before damage reduction, it considers your max health, armor, defense, dodge, parry, block, block value, resilience, crushing blow chance, miss, crit reduction, talants, buffs, stance/forms, and more.

Keep in mind though, that higher TankPoints does not make a better tank, it is only a benchmark for survivalbility gear but does not calculate threat. It can not decide for you what you should wear for what boss, but it can provide you with a wealth of information what will hopfully be useful for choosing gear.

About TankPoints 2.0

TankPoints 2.0 is a complete rewrite of my original TankPoints for WoW 2.0 using the Ace2 framework.

It has a much improved TankPoints algorithm, intergrates nicely into the character stats dropdown menu, and shows a lot more information then the original TankPoints.

2.0 introduced a new combat ratings system which made it even harder to compare gear, in order to code combat rating support for TankPoints, the exact rating to percentage formula is required which Blizzard didn't give us. Luckly, I have suceessfully reverse engineered the rating formula for all levels and coded an addon called "Rating Buster" that converts ratings on item tooltips into percentages, you can try it out here.

Rating Buster: http://wow.curse-gaming.com/en/files/details/4991/rating-buster/

How to use

Gravity has writen an awesome 7 page guide to using TankPoints on his blog: http://pwnwear.com/tankpoints-user-guide/

The value of Block

The value is Shield Block Value and Block Rating is highly dependent on what you are tanking.
Its very good for mobs that don't hit very hard like in heroics, but is worth much less on hard hitting bosses in 25 man raids.
At level 80, TankPoints' default mob damage is tuned to 25 man raids, with a value of 24365 damage before mitigation.
You can change this value to match what you plan on tanking by using the "/tp mob damage" command in game.
A mob damage of 10505 for example is a good value for level 80 heroics.

TankPoints also calculates the value of Shield Block for Warriors, and Holy Shield for Paladins.
You can use the "/tp player sbfreq" command to set a shield block frequency that matches your rotation (in how many seconds AFTER cooldown finishes).
For most tankadins rotations, you will have a 100% Holy Shield uptime, using "/tp player sbfreq 1" will tell TankPoints that you will use Holy Shield 1 second after cooldown finishes (every 9 secs)

TankPoints 2.0 Features

Imporved TankPoints 2.0 formula

Support for all combat ratings including the new resilience stat
Support for block% and block value
Support for crushing blows
Support for combat table and correctly caps off at a total of 100%.
Using Hit < Crushing < Crit < Block < Parry < Dodge < Miss
Support for mob stats:
- Mob level - defaults player level 3
- Mob damage
- Mob melee crit chance
- Mob melee crit bonus
- Mob melee miss chance
- Mob spell crit chance
- Mob spell crit bonus
- Mob spell miss chance

Improved TankPoints Calculator

TankPoints User Interface

Intergrated in to the Character stats dropdown menu (See Screeshots)
When TankPoints is selected it displays:
- TankPoints
- Melee Damage Reduction
- Block Value
- Spell TankPoints
- Spell Damage Reduction
TankPoints tooltip:
- Your stance
- Mob Stats
  - Mob Level
  - Mob Damage (after damage reduction)
  - Mob Crit Chance
  - Mob Miss Chance
- TankPoints per StatValue - Shows how much TankPoints you gain for each stats with equal item values, because the values below are equal in the item value formula, you can use this data to see what gives the most bang for the buck in terms of item budgets.
  - 1 Agility =
  - 1.5 Stamina =
  - 10 Armor =
  - 1 Resilience =
  - 1 Defense Rating =
  - 1 Dodge Rating =
  - 1 Parry Rating =
  - 1 Block Rating =
  - 1.54 Block Value
- Option to hold down ALT key will show how much TankPoints you gain for each stat point
  - 1 Agility
  - 1 Stamina
  - 1 Armor
  - 1 Resilience
  - 1% Defense
  - 1% Dodge
  - 1% Parry
  - 1% Block
  - 1 Block Value
Melee Damage Reduction tooltip:
- Armor Damage Reduction against mob level - Useful because the default armor tooltip only shows the reduction for the same level
- Mob Level, Player Level
- Combat Table - Hit < Crushing < Crit < Block < Parry < Dodge < Miss. The total of these chances must be capped at 100%, if you exceed 100% then lower priority values will be pushed off the table. For example, when you press shield block ( 75% block chance), hit, crush and crit will all be pushed off and will be 0, your real block chance will also be capped at (100% - Parry% - Dodge% - Miss%)
Block Value tooltip - Block Value should have been included in the default UI, but they didn't so I coded my own function that does it, strength, items, talents(warrior, paladin, shaman) are all considered in the algorithm.
- Mob Damage before Damage Reduction (armor and stance effects)
- Mob Damage after Damage Reduction
- Blocked percentage
- Block Value / Mob Damage after DR
- Block Chance
- Equivalent Block Mitigation
- Block Chance * Blocked percentage:
  This can be seen equal with the same amount of dodge or parry.
Spell TankPoints Tooltip - Shows your strongest school by default
- Your stance
- TankPoints at the following Melee/Spell Damage Ratio
  - 25% Melee Damage 75% <school> damage
  - 50% Melee Damage 50% <school> damage
  - 75% Melee Damage 25% <school> damage
- Can manually cycle through all schools by left clicking the stat
- Reset back to showing the strongest school by right click the stat
Spell Damage Reduction - Shows your strongest school by default
- Shows damage reductions for all schools
- Same click functions as the Spell TankPoints Tooltip

Supported class talants and buffs

Warrior: Improved Defensive Stance, Shield Mastery, Shield Wall - Buff, Death Wish - Buff, Recklessness - Buff, Toughness, Vitality
Druid: Survival of the Fittest, Natural Perfection, Thick Hide, Balance of Power, Heart of the Wild
Paladin: Shield Specialization, Divine Purpose, Blessed Life, Ardent Defender, Spell Warding, Improved Righteous Fury, Divine Strength, Toughness
Shaman: Shield Specialization, Elemental Shields, Elemental Warding, Toughness
Rogue: Sleight of Hand, Heightened Senses, Deadened Nerves, Vitality, Sinister Calling, Cloak of Shadows - Buff
Hunter: Survival Instincts, Thick Hide, Combat Experience, Lightning Reflexes
Priest: Shadow Resilience, Spell Warding, Pain Suppression - Buff, Enlightenment
Hunter: Survivalist, Endurance Training
Warlock: Demonic Resilience, Master Demonologist, Soul Link - Buff, Demonic Embrace, Fel Stamina
Mage: Arctic Winds, Prismatic Cloak, Playing with Fire, Frozen Core

Slash Commands

Use: /tp or /tankpoints

'''/tp''' - Show help
'''/tp calc''' - Toggle calculator
'''/tp mob''' - Show mob stats help
'''/tp mob level (-20 - 20)''' - Sets the level difference between the mob and you
'''/tp mob damage (0 - 99999)''' - Sets mob's damage before damage reduction
'''/tp mob default''' - Restores default mob stats
'''/tp mob advanced''' - Show advanced mob stats help
'''/tp mob advanced crit (0 - 100)''' - Sets mob's melee crit chance
'''/tp mob advanced critbonus''' - Sets mob's melee crit bonus
'''/tp mob advanced miss (0 - 100)''' - Sets mob's melee miss chance
'''/tp mob advanced spellcrit (0 - 100)''' - Sets mob's spell crit chance
'''/tp mob advanced spellcritbonus''' - Sets mob's spell crit bonus
'''/tp mob advanced spellmiss (0 - 100)''' - Sets mob's spell miss chance
'''/tp player sbfreq (0 - 1000)''' - Sets the Shield Block press delay in seconds after Shield Block finishes cooldown

TankPoints Formulas

TankPoints

Melee Total Reduction

totalReduction[MELEE] = 1 - ((mobCritChance * (1 + mobCritBonus) * mobCritDamageMod) + (mobCrushChance * 1.5) + (1 - mobCrushChance - mobCritChance - blockChance * blockedMod - parryChance - dodgeChance - mobMissChance)) * (1 - armorReduction) * meleeTakenMod

Spell Total Reduction

totalReduction[SCHOOL] = 1 - ((mobSpellCritChance * (1 + mobSpellCritBonus) * mobSpellCritDamageMod) + (1 - mobSpellCritChance - mobSpellMissChance)) * (1 - schoolReduction[SCHOOL]) * spellTakenMod

Armor Reduction

levelModifier = attackerLevel
if ( levelModifier > 59 ) then
  levelModifier = levelModifier + (4.5 * (levelModifier - 59))
end
armorReductionTemp = armor / ((85 * levelModifier) + 400)
armorReduction = armorReductionTemp / (armorReductionTemp + 1)
if armorReduction > 0.75 then
  armorReduction = 0.75
end
if armorReduction < 0 then
  armorReduction = 0
end

Defense Effect

defenseEffect = (defense - attackerLevel * 5) * 0.04 * 0.01

Block Value From Strength

blockValueFromStrength = floor(totalStr * 0.5 - 10)

Block Value

blockValue = floor((floor(totalStr * 0.5 - 10) + blockValueFromItems + blockValueFromShield) * blockValueMod)

Mob Damage (default formula)

mobDamage = (levelModifier * 55) * meleeTakenMod * (1 - armorReduction)

Resilience Effect

resilienceEffect = ReverseRating(resilience, playerLevel) * 0.01

Mob Crit Chance

mobCritChance = max(0, 0.05 - defenseEffect - resilienceEffect)

Mob Crit Bonus

mobCritBonus = 1

Mob Miss Chance

mobMissChance = max(0, 0.05 + defenseEffect)

Mob Crush Chance (if mobLevel is +4 or more)

mobCrushChance = (mobLevel - playerLevel) * 0.1 - 0.15

Mob Crit Damage Mod

mobCritDamageMod = max(0, 1 - resilienceEffect * 2)

Blocked Mod

blockedMod = min(1, blockValue / mobDamage)

Mob Spell Crit Chance

mobSpellCritChance = max(0, 0 - resilienceEffect)

Mob Spell Crit Bonus

mobSpellCritBonus = 0.5

Mob Spell Miss Chance

mobSpellMissChance = 0

Mob Spell Crit Damage Mod

mobSpellCritDamageMod = max(0, 1 - resilienceEffect * 2)

Resistance Reduction

schoolReduction[SCHOOL] = 0.75 * (resistance[SCHOOL] / (mobLevel * 5))

EffectiveHealth (EH)

effectiveHealth[MELEE] = playerHealth * 1/(1 - (1-armorReduction) * damageTakenMod)
effectiveHealth[SCHOOL] = playerHealth * 1/(1 - damageTakenMod) In other words: how much health you have times how much that health translates into raw damage when you're hit

EffectiveHealthWithBlock (EHB)

For every swing of the mob (see mobAtkSpeed) until you are out of health
    if time to press the shield block button given timeBetweenPresses
       refresh charges on shield block
    if mobHitChance + mobCrushChance + mobCritChance == 0 or
      (charges left and mobHitChance + mobCrushChance + mobCritChance <= 75%)
       use a charge on shield block
       min(healthLeft, take raw damage from the monster per mobDamage - blockValue)
    else
       min(healthLeft, take raw damage from the monster per mobDamage)
    end
end

TODO

Version History

2.8.4

toc update
Packaged with new libraries with 3.2.0 class support
Block Value is now 2/0.65 per statpoint
Paladin: Fixed Holy Shield talent location
Default mob damage at level 83 is now 44165, up from 24365 to match current raid difficulty.
Fixed TankPoints per Defense Rating calculation
Fixed Effective Health with Block

2.8.3

toc update
Packaged with new libraries with 3.1.3 class support

2.8.2

NEW: Avoidance diminishing returns calculations in Melee DR tooltip will show you how much avoidance you gain for +16 of each stat.
Diminishing returns for chance to be missed now supported.
Paladin: Combat table will now reflect the effects of Holy Shield if you set it at 100% uptime. To set 100% Holy Shield uptime, use a sqfreq lower then or equal to 2 secs, ex: /tp player sbfreq 2
Fixed Block Value formula
Can set shield block frequency from 0 secs to 1000 secs, set it to 1000 if you don't want TankPoints to calculate the shield block effect
Defense isn't affected by DR (Defense Rating is)
Fixed StatFrame data not updated correctly during stance/presence/form/aura change
Uses LibStatLogic-1.1 and LibTipHooker-1.1 now
Made the Calculator movable by dragging the sides
Support for enchant statmods:
Enchant: Rune of the Stoneskin Gargoyle: +2% Stamina
Enchant: Rune of Spellshattering: Deflects 4% of all spell damage
Enchant: Rune of Spellbreaking: Deflects 2% of all spell damage
Support for meta gem statmods:
Austere Earthsiege Diamond: 2% Increased Armor Value from Items
MetaGem: Eternal Earthsiege Diamond:+5% Shield Block Value
MetaGem: Eternal Earthstorm Diamond: +5% Shield Block Value
MetaGem: Effulgent Skyflare Diamond: Reduce Spell Damage Taken by 2%
Fixed Warrior talent detection: Vitality, Strength of Arms, Improved Defensive Stance
Death Knight: Added Stance: Frost Presence detection fixed
Death Knight: Added Buff: Bone Shield: Damage reduced by 40%.
3.0.8: Death Knight: Updated Stance: Frost Presence: The bonus armor has been increased from 60 to 80% and magic damage reduction increased from 5 to 15%.
3.0.8: Death Knight: Updated Buff: Bone Shield: Damage reduced by 20%.
3.0.8: Death Knight: Updated Buff: Will of the Necropolis: Reduce the damage of any attack that takes the DK below 35% health by 5%/10%/15% instead of boosting armor when wounded.
3.0.8: Druid: Updated Talent: Survival of the Fittest: This talent now grants 22/44/66% bonus armor in Bear Form and Dire Bear Form in addition to all of its previous effects.
3.0.8: Shaman: Updated Talent: Elemental Warding: Now reduces all damage taken by 2/4/6%.
Removed Endurance (Tauren racial)

2.8.1

Support for Warrior talent: Critical Block
Fixed Shield Block and Holy Shield calculations
Default mob damage at level 83 is now 24365 instead of 10505
Fixed a bug causing "ADD_CRIT_TAKEN" from talents to be capped at MobCritChance
Paladin: Added Talent: Redoubt - Increases your block value by 10%/20%/30%
Death Knight BaseDodge changed from 0.758% to 3.4636%.

2.8.0

Avoidance diminishing returns support: Calculator, ItemTooltip, TankPoints Per Stat, TankPoints Per StatValue
Supports Death Knight: Forceful Deflection - Increases your Parry Rating by 25% of your total Strength
Added Str to TankPoints Per Stat, TankPoints Per StatValue
Fixed EffectiveHealth, EffectiveHealthWithBlock
Fixed Warrior Shield Block calculations
Support for Paladin Holy Shield
Crushing blows only happen when mob is +4 levels
1 Strength now gives 0.5 Block Value
Removed Babble-Spell-2.2, Deformat-2.0, Gratuity-2.0
Fixed immediate errors in 3.0.2
Calculator: Fixed error
Code cleanup and stability tweaks
toc 30000

2.7.0 by Aliset

NEW: You can specify pre-mitigation mob damage using /tp mob drdamage
NEW: Ciderhelm's EffectiveHealth and a derived stat, EffectiveHealthWithBlock
Moved to StatFrameLib-1.0 for paperdoll stat frames
Alt events didn't seem to be working, so moved to clicks for per-stat/per-rating change
Consolidated some aspects of TankPoints calculation
Pretty print many of the large numbers shown (so 789956 shows up as 789,956)

2.6.8

NEW: You can now open the options window using /tp optionswin
Fixed: Error in TankPoints.lua:1286 and TankPoints.lua:947
Updated Korean localizations by fenlis

2.6.7

Updated Taiwan localization by Whitetooth
Improved stat scanning
Updated German localization

2.6.6

Updated French localization by Tixu, TankPoints Tooltips now works with the French client
Fixed a bug causing TankPoints tooltips not showing correctly for languages other then English
Fixed Parry/SpellHaste rating calculations
Updated libs

2.6.5

Pre updated the TOC to 2.1.0
Support for Shield Block skill, with options to set mobs attack speed(default 2.0) and average time between Shield Block key presses(default 8 sec)
Fixed error when changing options with the Calculator open

2.6.0

Calculator: Fixed MobLevel calculations
Better Talant and Buff support
Improved Block Value calculation
Code for smooth transition to 2.1.0
Updated Libs

2.5.7

Fixed incorrect tooltip values
Fixed calculater rounding errors

2.5.6

Fixed library error

2.5.5

Added StatLogic deDE localizations by Gailly

2.5.4

Fixed incorrect armor calculations in tooltips for Druilds
Added Taiwan localizations by CuteMiyu

2.5.3

Updated Korean localization by fenlis

2.5.2

Fixed another StatLogic bug

2.5.1

Fixed StatLogic bug
Druid Bear Form formulas updated to 2.0.10 fixes
Updated French localizations by Tixu
Added Korean localization by fenlis

2.5.0

Item tooltips will now show TankPoints (only works for English client until localized)
Removed Compost
Removed ReverseRating.lua
Code cleanup and optimizations

2.4.1

Fixed Calculator Block Value from Strength calculations

2.4.0

May now input Armor from items and Armor from non items in the Calculator
Really fixed Night Elf and Feral Swiftness dodge calculations
Improved accuracy of calculator stat calculations
Improved calculator support for Druid Forms
Calculator support for Druid talant * Heart of the Wild, Balance of Power,
Calculator support for Rogue talant * Cloak of Shadows
Calculator support for Paladin talant * Toughness
Calculator support for Hunter talant * Survivalist, Endurance Training
Calculator support for Warlock talant * Fel Stamina
Calculator support for health mods
Support for Death Wish, Recklessness

2.3.5

Fixed Druid, Hunter and Night Elf dodge calculation bug
Fixed Druid talant * Survival of the Fittest not being counted bug
Fixed Paladin talant * Ardent Defender being always on bug

2.3.3

Fixed Druid Dire Bear Form armor calculations

2.3.2

Added support for new pally talants: Spell Warding, Improved Righteous Fury
Updated Libs

2.3.1

TOC 20003
Updated Libs

2.3

Greatly improved the Calculator algorithms
Calculator: better support for talants that give bonus strength, agility, stamina, armor
Calculator: better handling for Defense Rating
Improved TP per StatValue/Stat calculations in TankPoints tooltips

2.2.3

Fixed low level resistance calculations
Fixed Druid Bear Form armor bonus
Plays nice with other mods that may add to the character dropdown list

2.2.2

Fixed Tauren health error

2.2.1

Added German localization by AbbedieD
Improved support for Druid armor bonuses in various forms
Removed (%) from Defense in Caculator
Partially updated French localizations
Updated libs

2.2

The improved TankPoints Calculator is now in
Changed Soul Link formula 30% -> 20%

2.1.1

Fixed TP per defense rating in tooltip again
Updated French localizations by Tixu

2.1

Support for various class specific talants and buffs
Fixed TP per defense rating in tooltip
PlayerHasShield() localized
GetBlockValue() localized
Fixed a couple slash command's option range
Partial French localizations by Tixu

2.0.1

Fixed ReverseRating error
Updated Libs
Fixed a display bug in TankPoints tooltips
Fixed Block Value algorithm not working with some shields
Set Block% to zero if you don't have a shield on

2.0

Complete rewrite for the 2.0 client using Ace2