View source for Damage types

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The '''Damage Type''' property of a [[trigger_hurt]] entity lets you choose between many types of damage, but it may be hard to figure out what these types of damage do exactly, so below is a list.<br>
Depending on game, the damage type may be entirely different, along with the way the damage is shown to the player.


'''Damage Perception:'''<br>
{{hl2s}} If nothing else is stated, each damage hit will (besides damaging you) make you jerk a little, make your screen flash red if you don't have a HEV suit, or provide red HUD directions to display where the damage is coming from if you have a HEV suit.<br>
{{l4ds}} Receiving damage only plays a vocal response and shows a damage indicator.<br>

'''Amount of Damage Applied:'''<br>
{{hl2}} The amount of damage applied depends on the current difficulty setting:
* "Easy" (<code>skill 1</code>) applies 50% of the <code>Damage</code> value every half-second.
* "Normal" (<code>skill 2</code>) applies 100% of the <code>Damage</code> value every half-second.
* "Hard" (<code>skill 3</code>) applies 150% of the <code>Damage</code> value every half-second.
Newer Multiplayer games seem to always apply 50% of the <code>Damage</code> value every half-second, even when playing singleplayer on Expert mode in {{l4ds|4}}.
:This is the case in {{tf2}} and {{l4ds}}. {{todo|Check if this also applies in other games.}}


== Damage types ==
This table shows every damage type available in the game. Some of these are not in the default [[FGD]]s and have to be added manually.<br>
Some games have different damage type names that trigger different effects. Some will be listed here as well.

The value for damage types are essentially bitflags. This means that multiple damage types can be specified at once where applicable. For instance, DMG_SHOCK have a value of 256 and DMG_DROWN have a value of 16384. Entering the sum of those (256 + 16384), 16640, would both cause the player's screen to flash blue, and a spark will appear near the player.

{| class="standard-table"
|- style="z-index:1; position:sticky; top:0"
! Value
! Name
! Comments / Effects

|- id="0"
| 0
| DMG_GENERIC
| 
* Does not make any kind of visual or audible indication of incoming damage, unlike other damage types.
|-

|- id="1"
| 1
| DMG_CRUSH
| 
* The whole screen flashes red even if you're wearing a HEV suit.
* Always does 50% of the ''Damage'' value every half-second, regardless of difficulty setting.
*{{l4ds|4}} Also makes the Witch flinch without startling her.
|-

|- id="2"
| 2
| DMG_BULLET
| 
* Plays bullet impact sounds.
*{{l4ds|4}} Also makes the Witch flinch without startling her.
|-

|- id="4"
| 4
| DMG_SLASH
| 
* Displays spurts of blood if player HEV suit power is 0.
* {{l4ds|4}} Also makes the Witch flinch without startling her.
|-

|- id="8"
| 8
| DMG_BURN
| 
* Plays heat damage sounds. (Something sizzling and the player going "Ouch!".)
* The whole screen flashes red even if you're wearing a HEV suit.
* No HUD damage directions are given. {{tip|For additional indication, you can add an {{ent|ambient_generic}} playing <code>hl1/fvox/heat_damage.wav</code> to make the HEV suit go: "Extreme heat damage detected."}}
* {{tf2|4}} Does NOT ignite players.
* {{l4ds|4}} Ignites all bots, also shows fire overlay in first person.
|-

|- id="16"
| 16
| DMG_VEHICLE
| 
* {{ent|prop_vehicle_jeep}} impacts deal this type of damage.
* Listed as "Freeze" in Valve FGDs, since this damage type was previously used for freeze damage in {{Gldsrc|4}}.
* When used in the [[Half-Life]] codebase, the HEV suit will display a snowflake icon on the left side of the screen.
* {{tf2|4}} A player killed by this type of damage will be displayed as being run over by a train.
|-

|- id="32"
| 32
| DMG_FALL
| 
* Always does 50% of the ''Damage'' value every half-second, regardless of difficulty setting.
* The HEV suit will not protect you from this type of damage.
* {{tf2|4}} A player killed by this type of damage will play a fall damage sound and display the fall-specific kill feed line "fell to a clumsy, painful death".
* {{l4ds|4}} If used on a {{ent|trigger_hurt}}, survivors will not scream "I'm Down" or simmilar lines when incapacitated.
|-

|- id="64"
| 64
| DMG_BLAST
| 
* May temporarily deafen the player.
* {{l4ds|4}} Stumbles all CI, SI, Tanks and Witches. Does not startle the Witch.
* {{tf2|4}} A player killed by this type of damage will leave gibs instead of a ragdoll.
|-

|- id="128"
| 128
| DMG_CLUB
| 
* {{tf2|4}} A player killed by this type of damage will emit their dramatic death sounds. Melee weapons deal this type of damage.
* {{l4ds|4}} Same damage as a Tanks punch and his boulders.
|-

|- id="256"
| 256
| DMG_SHOCK
| 
* Sparks for every hit.
* The whole screen flashes light blue even if you're wearing a HEV suit.{{tip|For additional indication, you can add an {{ent|ambient_generic}} playing <code>hl1/fvox/shock_damage.wav</code> to make the HEV suit go: "Electrical damage detected."}}
* {{l4ds|4}} No flashes, Missing <code>Particle/white</code> texture.
|-

|- id="512"
| 512
| DMG_SONIC
| 
*Damage from supersonic objects.
|-

|- id="1024"
| 1024
| DMG_ENERGYBEAM
| 
*Laser or other high energy beam.
|-

|- id="2048"
| 2048
| DMG_PREVENT_PHYSICS_FORCE {{Not in FGD}}
DMG_BLAMELESS_FRIENDLY_FIRE {{l4ds}}{{Not in FGD}}
| 
*Prevent a physics force (e.g. Gravity Gun Jump on Props).
*{{l4ds|4}} This damage type, as the name suggests, is used for friendly fire, except that the players will not say "Don't shoot me".
|-

|- id="4096"
| 4096 
| DMG_NEVERGIB {{Not in FGD}}
| 
*No damage type will be able to gib victims upon death.
:{{l4ds|4}} Does not function as such.
|-

|- id="8192"
| 8192 
| DMG_ALWAYSGIB {{Not in FGD}}
| 
*Any damage type can be made to gib victims upon death.
:{{l4ds|4}} Does not function as such.
|-

|- id="16384"
| 16384 
| DMG_DROWN 
| 
* The whole screen flashes blue even if you're wearing a HEV suit.
* Double HUD damage directions are given.
* Plays drowning sounds.
* Always does 50% of the ''Damage'' value every half-second, regardless of difficulty setting.
* The HEV suit will not protect you from this type of damage.
|-

|- id="32768"
| 32768 
| DMG_PARALYZE
DMG_FORCE_INCAPACITATE {{l4ds}} 
| 
* HEV suit warning: "Warning: Bloodtoxin levels detected." (<code>hl1/fvox/blood_toxins.wav</code>)
*{{l4ds|4}} If used on a {{ent|trigger_hurt}}, instantly incapacitates survivor bots. Regardless of damage value or mode.
|-

|- id="65536"
| 65536 
| DMG_NERVEGAS 
| 
* HEV suit warning: "Warning: Biohazard detected." (<code>hl1/fvox/biohazard_detected.wav</code>)
* {{tf2|4}} A player killed by this type of damage will be displayed as a kill by a sawblade.
|-

|- id="131072"
| 131072 
| DMG_POISON 
| 
* {{ent|npc_headcrab_black|alt=Poison headcrabs}} deal this type of damage.
* The whole screen flashes yellow even if you're wearing a HEV suit. (This flash seems to stick sometimes, and may appear the next time the player is hurt.)
* The HEV suit will not protect you from this type of damage.
* Always does 50% of the ''Damage'' value every half-second, regardless of difficulty setting.
* HEV suit warns: "Warning: Bloodtoxin levels detected." (<code>hl1/fvox/blood_toxins.wav</code>)
* HUD displays: "Neurotoxin Detected Administering Antidote"
* The damage received is slowly healed after a delay (even if the player is not wearing a suit, oddly enough).
* {{tf2|4}} Similar to GENERIC.
* {{l4ds|4}} Will not show damage indicator arrows on screen. This damage type is applied when bleeding out while being incapacitated.
|-

|- id="262144 "
| 262144 
| DMG_RADIATION 
| 
* Close proximity to a {{ent|trigger_hurt}} with this type of damage will set off the HEV suit's Geiger counter.
* The HEV suit will not protect you from this type of damage.
* The whole screen flashes white even if you're wearing a HEV suit.
{{tf2|4}} The screen does not flash. Causes gibbing like Blast damage.
* Double HUD damage directions are given.
* HEV suit warning: "Warning: Hazardous radiation levels detected." (<code>hl1/fvox/radiation_detected.wav</code>)

|-

|- id="524288 "
| 524288 
| DMG_DROWNRECOVER 
| 
* Used for regeneration of health lost due to drowning damage.
* If used on a {{ent|trigger_hurt}}, this will not recover health, but deal the damage. However, any {{ent|trigger_hurt}} using negative damage values can heal you.
|-

|- id="1048576 "
| 1048576 
| DMG_ACID 
DMG_CHOKE {{l4ds}}
| 
* The whole screen flashes white even if you're wearing a HEV suit. {{bug|The flash may reappear the next time the player is hurt.}}
* Double HUD damage directions are given.
* HEV suit warning: "Warning: Hazardous chemical detected." (<code>hl1/fvox/chemical_detected.wav</code>)
* Listed as "Chemical" in Valve FGDs, since this damage type was previously used for chemical damage in {{Gldsrc|4}}.
* {{tf2|4}} Critical damage. Deals 300% of the ''Damage'' value. Critical hit sounds play alongside killed players emitting dramatic death sounds.
* {{l4d2|4}} This damage is being dealt by the smoker. Both when the smoker punches caught survivors, but also by the tongue itself when survivors get stuck on an object while being dragged.
|-

|- id="2097152 "
| 2097152 
| DMG_SLOWBURN 
DMG_MELEE {{l4ds}} 
| 
* {{tf2|4}} Uses the damage falloff formula (50% at 1024 units away from attacker's origin, 150% at point blank)
|-

|- id="4194304 "
| 4194304
| DMG_REMOVENORAGDOLL {{Not in FGD}}
| 
* If damage of this type kills the player or an NPC, a ragdoll will not be created.
* This bit is set when attempting to use an {{ent|env_entity_dissolver}} on a live player.
* Listed as "Slow Freeze" in Valve FGDs, since this damage type was previously used for slow freeze damage in {{Gldsrc|4}}.
|-

|- id="8388608 "
| 8388608
| DMG_PHYSGUN {{Not in FGD}}
| 
*Damage from the Gravity Gun (e.g. pushing head crabs).
|-

|- id="16777216 "
| 16777216
| DMG_PLASMA {{Not in FGD}}
| 
*Turns the player's screen dark and plays sounds until the player's next footstep.
*{{l4ds|4}} Spawns Shotgun like gib particles until CI die and gib.
|-

|- id="33554432 "
| 33554432
| DMG_AIRBOAT {{Not in FGD}}
DMG_STUMBLE {{l4ds}}
| 
*Damage from airboat gun.
*{{l4ds|4}} Staggers CI like the melee attack of a firearm does.
|-

|- id="67108864"
| 67108864
| DMG_DISSOLVE {{Not in FGD}}
| 
* Emancipation effect of {{ent|prop_combine_ball|alt=Combine Energy Balls}} and the {{ent|Emancipation_Grid|alt=Emancipation Grid}} (Fizzlers) in {{Portal2Series|4}}.
|-

|- id="134217728"
| 134217728
| DMG_BLAST_SURFACE {{Not in FGD}}
| 
*A blast on the surface of water that cannot harm things underwater
|-

|- id="268435456"
| 268435456
| DMG_DIRECT {{Not in FGD}}
| 
*Damage from being on fire.(DMG_BURN relates to external sources hurting you)
|-

|- id="536870912"
| 536870912
| DMG_BUCKSHOT {{Not in FGD}}
| 
*Damage from shotguns. (not quite a bullet. Little, rounder, different.)
*{{l4ds|4}} Staggers CI. Makes Witch flinch.
|-

|- id="1073741824"
| 1073741824
| DMG_HEADSHOT {{Not in FGD}}
| 
*Damage from a headshot.
|-

|- id="2147483648"
| -2147483648
| DMG_LASTGENERICFLAG {{Not in FGD}}
DMG_DISMEMBER {{l4ds}} {{Not in FGD}}
| 
*{{l4ds|4}} {{todo}} <!-- whoever tested and wrote it applies all at once probably used value 2147483648 which overflows and becomes -1 which in binary is all 1s meaning all at once. Use -2147483648 to set this flag -->
|-

|}

== Prefabs ==
* [http://gtamike.tsgk.com/my_maps/safe_grav_jump.rar Example 1 - Gravity Gun Jump Without Taking Damage!] 
* [http://gtamike.tsgk.com/my_maps/no_fall_damage.zip  Example 2 - No Player Fall Damage!]

== See also ==
* [[Filter_damage_type]]

[[Category:Half-Life 2|Damage type]]

[[Category:Level Design]]<!--How exactly this is relevant here? -->