Editing Damage Types

<noinclude>{{Stub|reason=Add biotech damage types. Need breakdown of remaining damage types}}</noinclude>
<includeonly>{{Main|Damage Types}}</includeonly>
Damage is split into many different types, with different descriptors and [[death]] messages for injuries, different interactions with different targets and armor types, and different default stats. Not to be confused with [[Health Difficulties|health difficulties]].
{| {{STDT| sortable c_08 text-center}}
! Name !! Label !! Category !! Armor Category !! overkillPctToDestroyPart<ref>See [[#Overkill prevention|Overkill prevention]]</ref> !! [[Death]] Message<ref>{0} represents a pawn's name.</ref> !! General Injury !! Skin Injury !! Solid Injury !! Harms Outer Layers<ref>Surgery doesn't hurt your outside bits, but getting shot and stuff will.</ref> !! Affects [[shield belt|shields]] !! Stun duration
|- id="Cut"
! Cut 
| cut || Melee Weapons || Sharp || 0% - 10% || {0} has been cut to death. || Cut || Cut || Crack || true || false || -
|- id="Crush"
! Crush 
| crush || Melee Weapons || Blunt || 40% - 100% || {0} has been crushed to death. || Crush || Cut || Crack || true || true || -
|- id="Table Blunt"
! Blunt
| blunt || Melee Weapons || Blunt || 40% - 100% || {0} has been beaten to death. || Crush || Bruise || Crack || true || false || -
|- id="Poke"
! Poke
| blunt || Melee Weapons || Blunt || 40% - 100% || {0} has been beaten to death. || Crush || Bruise || Crack || true || false || -
|- id="Table Demolish"
! Demolish
| blunt || Melee Weapons || Blunt || 40% - 100% || {0} has been beaten to death. || Crush || Bruise || Crack || true || false || -
|- id="Stab"
! Stab
| stab || Melee Weapons || Sharp || 40% - 100% || {0} has been stabbed to death. || Stab || Stab || Crack || true || false || -
|- id="Table RangedStab"
! RangedStab
| stab || Ranged Weapons || Sharp || 40% - 100% || {0} has been stabbed to death. || Stab || Stab || Crack || true || false || -
|- id="Bullet"
! Bullet
| bullet || Ranged Weapons || Sharp || 0% - 70% || {0} has been shot to death. || Gunshot || Gunshot || Gunshot || true || true || -
|- id="Arrow"
! Arrow
| arrow || Ranged Weapons || Sharp || 0% - 70% || {0} has been shot to death. || Cut || Cut || Crack || true || true || -
|- id="ArrowHighVelocity"
! ArrowHighVelocity
| arrow || Ranged Weapons || Sharp || 0% - 70% || {0} has been shot to death. || Cut || Cut || Crack || true || true || -
|- id="Table Scratch"
! Scratch
| scratch || Melee Weapons || Sharp || 0% - 70% || {0} has been torn to death. || Scratch || Scratch || Crack || true || false || -
|- id="Table Toxic scratch"
! ScratchToxic
| toxic scratch || Melee Weapons || Sharp || 0% - 70% || {0} has been torn to death. || Scratch || Scratch || Crack || true || false || -
|- id="Bite"
! Bite
| bite || Melee Weapons || Sharp || 0% - 10% || {0} has been bitten to death. || Bite || Bite || Crack || true || false || -
|- id="Table Toxic bite"
! BiteToxic
| toxic bite || Melee Weapons || Sharp || 0% - 10% || {0} has been bitten to death. || Bite || Bite || Crack || true || false || -
|- id="Table Bomb"
! Bomb 
| bomb || Misc || Sharp || ? || {0} has died in an explosion. || Shredded || Shredded || Crack || true || true || -
|- id="BombSuper"
! BombSuper 
| bomb || Misc || Sharp || ? || {0} has died in an explosion. || Shredded || Shredded || Crack || true || true || -
|- id="Table Flame"
! Flame
| flame || Environmental || Heat || ? || {0} has burned to death. || Burn || Burn || Burn || false<ref>Fire currently doesn't burn your organs out or anything - ironically good for preserving them.</ref> || false || -
|- id="Table Burn"
! Burn
| burn || Environmental || Heat || ? || {0} has burned to death. || Burn || Burn || Burn || false<ref>Fire currently doesn't burn your organs out or anything - ironically good for preserving them.</ref> || false || -
|- id="Table Thump"
! Thump
| thump || Misc || Sharp || ? || {0} has been shot to death. || Crush || Crush || Crack || true || true || -
|- id="Table Tornado"
! TornadoScratch
| scratch || Environmental || Sharp || 0% - 70% || {0} has been killed by a tornado. || Scratch || Scratch || Crack || true || false || -
|- id="Frostbite"
! Frostbite
| frostbite || Environmental || – || ? || {0} has succumbed to frostbite. || Frostbite || Frostbite || Frostbite || true || false || -
|- id="Surgical cut"
! Surgical cut
| surgical cut || Medical || – || ? || {0} has died during surgery. || – || – || – || false<ref>Able to remove organs without harming outer body parts.</ref> || false || -
|- id="Execution cut"
! Execution cut
| execution cut || Medical || – || – || {0} has been executed by cutting. || Cut || Cut || Cut || false || false || -
|- id="Table EMP"
! EMP <ref name="stun">Does not deal physical damage so does not show up on body parts. </ref>
| - || Stun || – || – || {0} has been EMPed to death. || – || – || – || true || true || 0.25 s <ref name = duration>Per point of damage.</ref> <ref> Only applies to mechanoids or turrets. </ref>
|- id="Stun"
! Stun <ref name="stun"/>
| - || Stun || – || – || {0} has been stunned to death. || – || – || – || false || true || 0.33 s <ref name = duration></ref>
|-
|- id="Smoke"
! Smoke <ref name="stun"/>
| - || Misc || – || – || – || – || – || – || ? || ? || ?
|-
|- id="Deterioration"
! [[Deterioration]]
| - || Misc || – || – || – || – || – || – || ? || ? || ?
|-
|- id="Rotting"
! Rotting
| - || Misc || – || – || – || – || – || – || ? || ? || ?
|-
|- id="Mining"
! [[Mining]]
| - || Misc || – || – || – || – || – || – || ? || ? || ?
|-
|- id="Extinguish"
! Extinguish <ref name="stun"/>
| - || Misc || – || – || – || CoveredInFirefoam || CoveredInFirefoam || CoveredInFirefoam || ? || ? || ?
|}
<references/>
<noinclude>
== General mechanics == 
Each damage type applies its damage in its own way - in the armor type it opposes, in the body parts it can target, in how damage is split between body parts, the multipliers it gets against certain target types, and a multitude of other effects. 

This often makes comparisons of pure damage and {{DPS}} poor determining factors when comparing weapons of different damage types, even after accounting for the different armor types the attack opposes. 

=== Overkill prevention ===
Overkill prevention is mechanic by which the destruction of body parts that would reduced to 0 {{HP}} or below, is occasionally prevented.

Overkill prevention works as follows: If the damage would be insufficient to reduce the HP of the body part in question to 0 or below, full damage is dealt. If the damage would be sufficient, two outcomes are possible - either the part is destroyed or the part is reduced to 1 HP and any remaining damage is lost. First, the amount of damage over the current HP of the part is determined. This is then divided by the maximum health of the body part when completely healthy. This is the "Overkill Percentage". For example, a body part is totally health and has a maximum {{HP}} of 10. It is dealt 15 damage by a single attack, which would reduce it to -5. That results in an Overkill Percentage of 50%. 

This overkill percentage is then compared to the "overkillPctToDestroyPart" range unique to the damage type. For example, Scratch has a range of 0~0.7, or 0 to 70%. An inverse lerp is then performed using the Overkill Percentage and this range. This then provides the final chance for this attack to destroy the body part.

{| class="wikitable"
| Chance to Destroy = (OVERKILL PERCENTAGE - LOWER)/(UPPER - LOWER) 
|}

This result is the chance that the body part is destroyed by the attack. For example, if the attack deals 70% of the parts maximum health as Scratch Type Overkill Damage, then there is a 100% chance the body part would be destroyed. If the chance is failed, the part is not destroyed and instead reduced to 1 HP.

The end result is that weapons that deal high single attack damage are more likely to result in body part destruction than lower damage attacks of their damage type, and that the chance of a body part getting destroyed by a single attack goes up as its HP goes down. It also makes the overkillPctToDestroyPart of each damage type an important factor in the combat performance of weapons that use it. 

== Damage types ==

=== Blunt ===
If a strike from an attack dealing blunt damage is sufficient to destroy the struck [[body parts|body part]], damage can propagate to the parent part of the destroyed part, if and only if that parent part is considered an outside part. How the damage is divided between the two attacks is currently unclear. This allows blunt damage to deal significant damage to important body parts even if they were not the part directly targeted.

Additionally, if a blunt attack hits the parentless body part of a target, e.g. the torso on [[human]]s and most other pawns, there is a small chance to [[#Stun|Stun]] the target. This chance depends on the percentage of the body part's maximum HP that the attack inflicted as damage. It is determined by the following curve. I.e. if a single strike does 90% of the maximum, not remaining, HP of the torso to the torso of a pawn, it has a 15% chance to be stunned.

Alternatively, if a blunt attack hits a body part of a target that a is source of consciousness, e.g. the brain on [[human]]s and most other pawns, there is a larger chance to [[#Stun|Stun]] the target. This chance depends on the percentage of the body part's maximum HP that the attack inflicted as damage. It is determined by the following curve. I.e. if a single strike does 50% of the maximum, not remaining, HP of the brain to the brain of a pawn, it has a 100% chance to be stunned.

In both cases the stun duration appears to be 0.66s

If neither the parentless body part nor a consciousness source are hit, no stun occurs.

Eyes specifically have a 0% hit chance factor against blunt damage, meaning they will never be hit by a blunt attack.

{| class="wikitable"
! Stun Chance per Percentage of Torso's Maximum HP || Stun Chance per Percentage of Brain's Maximum HP
|-
| {{Graph:Chart|width=200|height=200|xAxisTitle=Damage/Maximum Torso HP (%)|yAxisTitle=Stun Chance (%)|type=line|x=0, 40, 90, 100 |y1=0.0, 0, 15 , 15}}
| {{Graph:Chart|width=200|height=200|xAxisTitle=Damage/Maximum Brain HP (%)|yAxisTitle=Stun Chance (%)|type=line|x=0, 4, 50, 100 |y1=0.0, 20, 100 , 100}}
|}

=== Bomb ===
Bomb damage is done by a variety of explosive weapons and is additionally effective against buildings. The default damage is 50, with a default {{AP}} of 10% and stopping power of 0.5. It does 4x Damage to Plants and to impassable buildings such as Nutrient Paste Dispensers and 2x to passable buildings such as armchairs. Additionally, [[Wall]]s specifically have an additional 2x multiplier, stacking with the previous 4x, for a total of 8x damage. Each hit picks 1-4 random unconnected body part targets to affect (either internal or external). Then splits the damage evenly across those parts. Then rolls for armor penetration for each hit. If an internal part takes damage, the damage value will then be duplicated to the parent part (this is bonus damage).

=== Burn ===
Identical to [[#Flame|Flame]] except that it cannot ignite targets.

=== Demolish ===
Demolish damage is done by [[breach axe]]s and is additionally effective against buildings. It applies a 10x Damage multiplier when attacking buildings, but applies an additional 0.75x multiplier when attacking the target is impassible such as [[walls]], for a net multiplier of 7.5x against that class of building. In all other ways, it is otherwise identical to Blunt damage.

=== EMP ===
{{Image wanted|reason=Stun mote and electrical sparking effect}}
{{Stub|section=1|reason=Mech boss EMP resistance}}
EMP damage is a fairly unique form of damage that does no direct harm to organic pawns, but temporarily stuns mechanical pawns and some objects.

The weapons that deal EMP damage include:
* [[EMP grenades]]
* [[EMP launcher]]
* [[EMP shell]]
* [[IED EMP trap]]
* [[Zeushammer]] {{RoyaltyIcon}} 
* [[Persona zeushammer]] {{RoyaltyIcon}}
Additionally, when destroyed the [[Condition causer#Defoliator|Defoliator]] condition causer will release a EMP blast with a 9 tile radius.

EMP mainly serves to stun [[mechanoid]]s, [[turret]]s, and [[mortar]]s. Every stun "damage" inflicts {{Ticks|30}} of stun. Most items do 50 EMP damage, or 25 seconds of stun.

After being stunned, mechanoids become 'Adapted', gaining immunity from further stuns for {{Ticks|2200}}. The immunity starts ticking down as soon as the stun is applied; stun duration or future stuns have no effect on adaptation. The post-stun Adapted duration is {{Ticks|2200-(30*50)}} for most items. Some mechanoids in the [[Biotech DLC]] {{BiotechIcon}} have EMP resistance, so are stunned for less time.

{| class="wikitable"
! Damage !! Sources !! Stun Duration !! Post-Stun Adaption Duration !! Ideal Stun Uptime
|-
| 9    || [[Zeushammer]], [[Persona zeushammer]]  ||  {{Ticks|30*9}}   || {{Ticks|2200-(30*9)}}     || {{%|(30*9) / ((30*9)+(2200-(30*9))) round 2}}
|-
| 45   || Awful [[quality]] [[EMP launcher]]      || {{Ticks|30*45}}   || {{Ticks|2200-(30*45)}}    || {{%|(30*45) / ((30*45)+(2200-(30*45))) round 2}}
|-
| 50   || ''All other sources''                   || {{Ticks|30*50}}   || {{Ticks|2200-(30*50)}}    || {{%|(30*50) / ((30*50)+(2200-(30*50))) round 2}}
|-
| 62.5 || Masterwork [[quality]] [[EMP launcher]] || {{Ticks|30*62.5}} || {{Ticks|2200-(30*62.5)}}  || {{%|(30*62.5) / ((30*62.5)+(2200-(30*62.5))) round 2}}
|-
| 75   || Legendary [[quality]] [[EMP launcher]]  || {{Ticks|30*75}}   || {{Ticks|0}} <!--{{Ticks|2200-(30*75)}} is less than 0 --> || 100%
|}

Any amount of EMP damage will also:
* Inflict [[brain shock]] on pawns with brain implants ([[Learning assistant]] {{RoyaltyIcon}}, [[Neurocalculator]] {{RoyaltyIcon}}, [[Circadian assistant]] {{RoyaltyIcon}}, [[Circadian half-cycler]] {{RoyaltyIcon}})
* Inflicts vomiting on pawns with certain stomach implants ([[Nuclear stomach]] {{RoyaltyIcon}}, [[Reprocessor stomach]] {{RoyaltyIcon}}, [[Sterilizing stomach]] {{RoyaltyIcon}})
* Break [[shield belt]]s, which will recharge as if they reached 0 HP normally.
* Disable [[low-shield pack]]s {{RoyaltyIcon}} for 0 {{Ticks|600}}; the burnout timer continues to run while stunned.
* Disable [[mech low-shield]]s {{RoyaltyIcon}} and [[mech high-shield]]s {{RoyaltyIcon}} for {{Ticks|1200}}. For mech high-shields, an [[EMP shell]] must impact the actual shield; the blast will not disable it.
* If an EMP attack does more EMP damage to a mortar than the remaining HP it has, the mortar will explode.

Using EMP attacks against friendlies counts as an attack, even if they aren't hurt.

=== RangedStab ===
{{Stub|section=1|reason=General}}
RangedStab is unlike other damage types in that it can directly apply its damage to an internal body part without damaging the exterior parent. That is, it can deal full damage to a liver but somehow not damage the torso on the way in. In comparison, melee stabs will split damage between internal and parent, while ranged attacks like bullets and arrows will duplicate the damage in its entirety for each part. 

The exception to this is when RangedStab damage is mitigated by armor, at which point it will deal damage to both internal child and external parent, splitting it 50/50. This disparity in damage modes is likely a bug, and it is probably intended that damage is dealt to the parent regardless.

=== Flame ===
Flame damage has a default damage of 10 and typically has no armor penetration at all. If any damage is dealt by flame damage at all, i.e. it is not fully negated by [[Apparel#Protection|protective apparel]], there is a chance to [[Fire|ignite]] the pawn. 

This chance does not scale with the damage done i.e. a partial mitigation does not reduce the chance. However, it does scale with the [[Flammability]] of the target, and is defined by the following graph:

{| class="wikitable"
! Ignition Chance per Target Flammability
|-
| {{Graph:Chart|width=200|height=200|xAxisTitle=Target Flammability (%)|yAxisTitle=Ignition Chance (%)|type=line|x=0, 10, 30, 100 |y1=0, 7, 100, 100}}
|}

For example, a normal human has a flammability of 70% and so has a 100% chance to ignite if any flame damage is taken, while a human wearing [[phoenix armor]] {{RoyaltyIcon}} has a flammability of 2% and so has a 1.4% chance to ignite if any flame damage is taken. 

{| class="wikitable"
|-
! Factors !! Flammability !! Ignition Chance upon<br>Flame Damage Taken
|-
! ''Default Human'' 
| 70% || 100% (1 in 1)
|-
! [[Genes#Fire resistant|Fire resistant]] {{BiotechIcon}} 
| 10% || 7% (1 in 14.3)
|-
! [[Phoenix armor]] {{RoyaltyIcon}} 
| 2% || 1.4% (1 in 71.4)
|-
! [[Phoenix armor]] {{RoyaltyIcon}} +<br>[[Genes#Fire resistant|Fire resistant]] {{BiotechIcon}} 
| 0.2% || 0.14% (1 in 714.3)
|-
! ''Default Mechanoid'' 
| 0% || 0% (Never)
|}

If the pawn is ignited the size of the [[fire]] is randomly selected between 15% and 25%, which affects the difficulty of putting it out and the chance to spread.

In addition to weapons that deal flame damage, [[lightning]] also deals 10 flame damage its area of effect.

=== Scratch ===
Scratch damage does damage differently depending on what part is initially targeted.

If the part targeted is internal, then a count is made of all parts from the targeted part, and that part's parent, and that part's parent, etc. until a part that is external is found. The damage dealt is then evenly divided among these parts, including the targeted part and the final outside part. Note that in testing, no scratch attack was seen initially targeting an internal part. It is unclear if this is even possible to occur in game.

If the part targeted is external, then a list is created including: the originally targeted part, the children parts of the original part, the parent of the original part, and the children of the parent of the original part. Two parts are then selected from this list at random,{{Check Tag|Verify|Is it two parts are picked at random, or the chosen part and 1 random part}} and then 67% of the original post-armor damage is dealt to both parts. Note that is can result in {{DPS}} 33% higher than the weapon's nominal value, though damage may be also limited by [[#Overkill prevention|overkill prevention]].

In this instance, Scratch has a overkillPctToDestroyPart range of 0~0.7, or 0% to 70%. This means there is a linear probability from 0% chance of destruction when the no damage over current HP is dealt, to 100% chance the body part would be destroyed when the attack deals 70% of the parts maximum health as Scratch Type Overkill Damage. If the chance is failed, the part is not destroyed and instead reduced to 1 HP.

For example, a [[power claw]] deals {{Q|Power claw|Attack 1 Damage}} scratch damage. If the initial attack targets the nose, the head's child part, then an eye could be selected as it is also a child part of the head. If the initial attack was also halved by armor, then this attack would deal {{#expr: 0.67*0.5*{{Q|Power claw|Attack 1 Damage}}}} damage to the nose and {{#expr: 0.67*0.5*{{Q|Power claw|Attack 1 Damage}}}} to the eye.

=== Toxic bite ===
Identical to [[#Bite|Bite]], but also inflicts a 1.5% severity increase of [[toxic buildup]] for each point of Bite damage inflicted, multiplied by the [[Toxic Resistance]] of the target and inversely proportional to the [[body size]] of the target i.e. a target with 50% Toxic Resistance and a body size of 2 will take 25% of the toxic buildup.

Animals will not apply the toxic buildup hediff when hunting for food, even when using an attack with this damage type. This is to prevent them from rotting their prey with toxic buildup, and being left unable to eat, only to have to repeat the cycle.{{Check Tag|Wildmen?|Wildman pawn with the venom fangs implant hunting prey - do they apply it?}}

=== Toxic bullet ===
Identical to [[#Bullet|Bullet]], but also inflicts a 0.65% severity increase of [[toxic buildup]] for each point of Bullet damage inflicted, multiplied by the [[Toxic Resistance]] of the target and inversely proportional to the [[body size]] of the target i.e. a target with 50% Toxic Resistance and a body size of 2 will take 25% of the toxic buildup.

The tag is set such that animals will not apply the toxic buildup hediff when hunting for food, even when using an attack with this damage type, however it is unclear if this is functional or merely a hold over from copying the standard set by [[#Toxic bite|toxic bite]] as that condition cannot occur in vanilla. It is also unclear whether it would apply to colonists hunting with such weapons.{{Check Tag|Verify|Have pawn hunt with dev mod spawned in toxic needle gun}}

=== Toxic scratch ===
Identical to [[#Scratch|Scratch]], but inflicts a 1.5% severity increase of [[toxic buildup]] for each point of Scratch damage inflicted, multiplied by the [[Toxic Resistance]] of the target and inversely proportional to the [[body size]] of the target i.e. a target with 50% Toxic Resistance and a body size of 2 will take 25% of the toxic buildup.

Animals will not apply the toxic buildup hediff when hunting for food, even when using an attack with this damage type. This is to prevent them from rotting their prey with toxic buildup, and being left unable to eat, only to have to repeat the cycle.

=== Thump ===
Thump damage is done by [[Thump cannon]], and is exceptionally effective against buildings. The default damage is only 5, with 0 AP, however it does 4x Damage to Plants, 15x damage to impassable buildings such as Nutrient Paste Dispensers, 7.5x to passable buildings such as armchairs. Additionally, both [[wall]]s and natural rock walls specifically have an additional 2x multiplier, stacking with the previous 15x, for a total of 30x damage.

=== Vaporize ===
{{Biotech|section=1}}
Vaporize damage is done by the [[hellsphere cannon]]. The default damage is 800, with a default {{AP}} of 100% and stopping power of 1.5. It does 4x to impassable buildings such as Nutrient Paste Dispensers, 2x to Plants and  passable buildings such as armchairs, and 0.1x damage to corpses. 

It is resisted by heat armor and heats up the area in which it is fired.{{Check Tag|Detail needed}}

== Version history ==
* Beta 19/1.0 - Bomb damage now does 2x damage vs plants. '''Note:''' this was increased in a later version to 4x, as noted above.
* [[Version/1.2.2719|1.2.2719]] - New visual effects for the EMP state on mechs or turrets, with electrical arcs and sparks.
* [[Version/1.3.3200|1.3.3200]] - Thump damage multiplier versus [[wall]]s reduced from 4x to 2x. Demolish damage multiplier versus impassible buildings reduced from 1 to 0.75.
[[Category:Game mechanics]]
</noinclude>