Difference between revisions of "Dodging"

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(Update to 0.18)
(Updated the second part of the dodging formula to use the .25 formula. If someone wants to improve the wording after the formula section, please do.)
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{{flavour|The Dodging skill will affect your chance of dodging an attack, be it melee, ranged or magical. Certain types of attack cannot be dodged, however, such as enchantments (which must be resisted) and explosions.}}
 
{{flavour|The Dodging skill will affect your chance of dodging an attack, be it melee, ranged or magical. Certain types of attack cannot be dodged, however, such as enchantments (which must be resisted) and explosions.}}
  
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The Dodging bonus is penalized by wearing heavy armour. The penalty from armour is:
 
The Dodging bonus is penalized by wearing heavy armour. The penalty from armour is:
  (body_armour_encumbrance_rating*size_factor - 3)×10/[[strength|STR]]
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  armor_penalty = unadjusted_armor_encumberance - 3
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if armor_penalty < 0:
 +
    modifier = 1
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if armor_penalty > 0:
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    if armor_penalty >= Str:
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        modifier = Str / (armor_penalty * 2)
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    if armor_penalty < Str:
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        modifier = 1 - armor_penalty / (Str * 2)
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final_dodge_bonus = dodge_bonus * modifier
  
This penalty cannot be negative, so it is not applied when wearing [[robe]]s or [[animal skin]]s. Size_factor is 0.75 for large species: [[Troll]], [[Ogre]], [[Centaur]], and [[Naga]]; 1 for normal species; 1.25 for small species: [[Kobold]] and [[Halfling]]; and 1.5 for tiny species: [[Spriggan]] ([[Felid]]s can't wear armour).
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This means that if your strength is less than the encumbrance value of the armor you're using, you will be facing pretty steep dodge penalties... but you'll always be able to gain SOME benefit from increasing your Dodge skill, because the penalties are a percent of the total. And, once Str > Encumbrance - 3, doubling your strength will reduce those penalties by half.
 
 
For a normal-sized character, the amount of dodging required to start increasing his evasion is:
 
(body_armour_encumbrance_rating-3)×200/(Str*ev_Dex) - 7/ev_Dex
 
  
 
If you are [[paralyse]]d, your Dodging skill is completely ineffective. The only thing that contributes to EV in this case is repulsion field mutation.
 
If you are [[paralyse]]d, your Dodging skill is completely ineffective. The only thing that contributes to EV in this case is repulsion field mutation.

Revision as of 01:17, 19 October 2020

Version 0.25: This article may not be up to date for the latest stable release of Crawl.
The Dodging skill will affect your chance of dodging an attack, be it melee, ranged or magical. Certain types of attack cannot be dodged, however, such as enchantments (which must be resisted) and explosions.

The Dodging skill determines how well your character can avoid blows, beams and missiles fired by monsters and traps.

Number crunching

In addition to base EV (10 + Size), Dodging skill provides an EV bonus calculated as follows:

 (7 + Dodging × ev_Dex) / (20 - size)
  • Size is a factor of your species's body size, which varies from 4 (tiny, such as a Spriggan); to -8 (huge, such as being in Dragon Form). See Evasion for more details.
  • ev_Dex is a stepped down value of your Dex. If Dex is greater than 24, it is reduced according to this formula: ev_Dex = 14 + 10 * log2(1 + (dex - 14)/10). (Condensed: ev_Dex = Dex < 24 ? Dex : 14 + 10 * log2(1 + (dex - 14)/10) )

The Dodging bonus is penalized by wearing heavy armour. The penalty from armour is:

armor_penalty = unadjusted_armor_encumberance - 3
if armor_penalty < 0:
    modifier = 1
if armor_penalty > 0:
    if armor_penalty >= Str:
        modifier = Str / (armor_penalty * 2)
    if armor_penalty < Str:
        modifier = 1 - armor_penalty / (Str * 2)
final_dodge_bonus = dodge_bonus * modifier

This means that if your strength is less than the encumbrance value of the armor you're using, you will be facing pretty steep dodge penalties... but you'll always be able to gain SOME benefit from increasing your Dodge skill, because the penalties are a percent of the total. And, once Str > Encumbrance - 3, doubling your strength will reduce those penalties by half.

If you are paralysed, your Dodging skill is completely ineffective. The only thing that contributes to EV in this case is repulsion field mutation.

Tricks and tips

Adventurers should train first and foremost in order to deliver damage. Since Dodging does not help you in killing your opponents faster and offers slight returns at first, it is perfectly reasonable to turn Dodging off at the start, then turn it back on later on when you feel skilled enough at killing stuff.

Aptitudes

At Ba Co DE Dg Ds Dj Dr Fe Fo Gr Gh Gn Hu Ko Mf Mi MD Mu Na Op On Sp Te Tr Vp VS
-3 1 -1 2 -1 -1 1 -1 3 -1 -2 -1 8 0 2 3 1 -3 -2 -2 0 -1 3 1 -2 1 -2

See also

History

Prior to 0.6, characters could only train Dodging when wearing light armour and would train Armour only when wearing heavy armour.

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