npc_combinegunship

npc_combinegunship is a point entity available in Half-Life 2, Half-Life 2: Episode One, Half-Life 2: Episode Two, and Half-Life 2: Deathmatch. A flying Combine NPC with one main gun and the ability to track and shoot down RPG rockets.

Note:The gunship does not use info_node_air for navigation. It follows path_tracks exclusively! It does so quite intelligently though, so the result looks rather dynamic.

Note:Some keyvalues, flags, inputs, or outputs might not affect an NPC, based on the functionality and coding of the NPC.

Tip:Use info_target_gunshipcrash entities to suggest spectacular crashing points for defeated gunships.

Tip:npc_heli_avoidsphere works with this npc

Dedicated Console Variables

sk_gunship_burst_size <int>

Fire off this many bullets in a burst.

sk_gunship_burst_min <float>

Pathing avoid distance.

sk_gunship_burst_dist <float>

The maximum distance from the enemy that the gunship will start stitching.

sk_gunship_health_increments <int>

Number of times the gunship must be struck by explosive damage (multiplied for skill settings).

g_debug_gunship <choices>

Debug type:

• 0: Disabled
• 1: Leading
• 2: Path
• 3: Stitching

sk_npc_dmg_gunship <float>

Used by ammotype "CombineCannon".

sk_npc_dmg_gunship_to_plr <float>

Used by ammotype "CombineCannon".

Keyvalues

BaseHelicopter:

Initial Speed <string>

The speed that the entity should try to reach as soon as it spawns.

Target path_track <targetname>

The name of a path_track that this NPC will fly to after spawning.

BaseNPC keyvalues

Relationship (???) <string> !FGD Changes whether this NPC likes or dislikes certain others. Used like the ai_relationship entity, with this NPC as the subject. Format: <string|targetname or classname> <string|disposition> <int|rank>. Values for disposition are: D_HT: Hate D_FR: Fear D_LI: Like D_NU: Neutral Target Path Corner (target) <targetname> The path_corner that this NPC will move to after spawning. Squad Name (squadname) <string> NPCs that are in the same squad (i.e., have matching squad names) will share information about enemies and will take turns attacking and covering each other. Hint Group (hintgroup) <string> Hint groups are used by NPCs to restrict their hint-node searching to a subset of the map's hint nodes. Only hint nodes with matching hint group names will be considered by this NPC. Hint Limit Nav (hintlimiting) <boolean> Limits NPC to using specified hint group for navigation requests. Does not limit local navigation. Sleep State (sleepstate) <choices> Holds the NPC in stasis until specified condition. See also Wake Radius and Wake Squad. 0: None 1: Waiting for threat 2: Waiting for PVS 3: Waiting for input, ignore PVS 4: Auto PVS 5: Auto PVS after PVS Wake Radius (wakeradius) <float> Auto-wake if player comes within this distance. Wake Squad (wakesquad) <boolean> Wake all of the NPCs squadmates if the NPC is woken. Enemy Filter (enemyfilter) <targetname> Filter entity to test targets against. Ignore unseen enemies (ignoreunseenenemies) <boolean> Prefers visible enemies, regardless of distance or relationship priority. Physics Impact Damage Scale (physdamagescale) <float> Scales damage energy when this character is hit by a physics object. With a value of 0 the NPC will take no damage from physics. DamageFilter: Damage Filter (damagefilter) <targetname> Name of the filter_damage_type entity that controls which entities can damage us.

Flags

• 1 : Wait Till Seen
• 2 : Gag (No IDLE sounds until angry)
• 4 : Fall to ground (unchecked means *teleport* to ground)
• 8 : Drop Healthkit
• 16 : Efficient - Don't acquire enemies or avoid obstacles
• 32 : No Rotorwash
• 64 : Await Input
• 128 : Wait For Script
• 256 : Long Visibility/Shoot
• 512 : Fade Corpse
• 1024 : Think outside PVS
• 2048 : Template NPC (used by npc_maker, will not spawn)
• 4096 : No ground attack
• 8192 : Use chopper model !FGD

Inputs

OmniscientOn

Gunship knows target's location even when target is out of sight or behind cover

OmniscientOff

Gunship relies on normal sight functions to locate target

BlindfireOn

Gunship will fire at an unseen target, attempting to punch through to them

BlindfireOff

Gunship only fires at visible target

SetPenetrationDepth <float>

Set penetration depth of bullets

SetDockingBBox

Shrink Bounding Box

SetNormalBBox

Set Bounding Box to normal size

EnableGroundAttack

Allow the gunship to use its ground attack

DisableGroundAttack

Don't allow the gunship to use its ground attack

DoGroundAttack <string>

Causes the gunship to execute its ground attack

BecomeInvulnerable

Stops the gunship from taking damage, but still makes sounds effects

BecomeVulnerable

Makes the gunship act normally to damage

EnableRotorSound

DisableRotorSound

BaseHelicopter:

MoveTopSpeed

The helicopter will immediately move at top speed toward its current goal, or in its current orientation if it's on top of its goal.

ChangePathCorner <targetname>

Tell the helicopter to move to a path corner on a new path.

SelfDestruct

Self Destruct.

Warning:Using this input on a npc_helicopter that's waiting for Activate input causes game to crash!

Activate

Activate. Use to wake up a helicopter that spawned with the 'Await Input' spawnflag on.

SetTrack <targetname>

Set a track for the helicopter to adhere to. The helicopter will do nothing if it's on the same path, and will move to the closest point on the specified track if it's on a different path.

FlyToSpecificTrackViaPath <targetname>

The helicopter will first fly to the closest point on the path if it's on a different path. Then it'll fly along the path to the specified track point.

FlyToPathTrack <targetname>

The helicopter will fly to the given path_track.

StartPatrol

Start patrolling back and forth along the current track.

StopPatrol

Stop patrolling back and forth along the track. This will cause the helicopter to come to rest at the track which he's currently flying toward.

ChooseFarthestPathPoint

When tracking an enemy, choose the point on the path furthest from the enemy, but still in firing range.

ChooseNearestPathPoint

When tracking an enemy, choose the point on the path nearest from the enemy.

StartBreakableMovement

The helicopter is now allowed to disobey direct commands to go to particular points if it senses an enemy. It will move to the closest point (or farthest point, if ChooseFarthestPathPoint is used), on the path if it senses an enemy.

StopBreakableMovement

The helicopter can no longer disobey direct commands. It will continue to fly along it's patrol path or to it's specified target even if it senses an enemy.

BaseNPC inputs

AddHealth <integer> Template:EP2 add RemoveHealth <integer> (in all games since ) Add to or remove from the NPC's health. SetHealth <integer> Set the NPC's health. Break Smash into pieces. If this is not possible, disappear. BecomeRagdoll  (in all games since ) Remove itself and instantly become a ragdoll with zero force (just go limp). OnDeath, etc. outputs will NOT be fired. ForceInteractionWithNPC <string> <string>  Template:EP1 add Force the NPC to use a dynamic interaction with another NPC. Syntax is <targetname> <dynamic interaction>. ForgetEntity <targetname> Clears out the NPC's knowledge of a named entity. UpdateEnemyMemory  (in all games since ) Update (or create) this NPC's memory of of the given entity. GagEnable GagDisable Gagged NPCs won't speak (or moan, caw, etc.) unless made to be a choreographed scene. HolsterWeapon  (in all games since ) UnholsterWeapon  (in all games since ) Force the NPC to holster or unholster their weapon. Ignored if the NPC is scripting or if the NPC doesn't use weapons. HolsterAndDestroyWeapon  (in all games since ) Same as HolsterWeapon, except the weapon is destroyed once it has been concealed. IgnoreDangerSounds <float> Ignore danger sounds for the specified number of seconds. physdamagescale <float> Scales the damage taken when this character is hit by a physics object. 0 means this feature is disabled for backwards compatibility. SetBodyGroup <integer> HACK: Sets this NPC's body group (from 0–n). SetMaxLookDistance <float> (only in ) Sets the maximum look distance for the NPC. Defaults are 2048 and 6000 for long range NPCs. SetRelationship <string|targetname or classname> <string|disposition> <int|rank> Changes whether this NPC likes or dislikes certain others. Used like the ai_relationship entity, with this NPC as the subject. Values for disposition are: D_HT: Hate D_FR: Fear D_LI: Like D_NU: Neutral SetSquad <string> Change the name of this NPC's squad. Leaving the parameter blank will remove the NPC from any existing squad. StartScripting StopScripting Enter/exit scripting state, where NPCs ignore a variety of stimulus that would make them break out of their scripts. They ignore danger sounds, ignore +Use, don't idle speak or respond to other NPCs' idle speech, and so on. Wake Wakes up the NPC if it is sleeping. DamageFilter: SetDamageFilter <string> Sets the entity to use as damage filter. Pass in an empty string (no parameter) to clear the damage filter.

Outputs

OnFireCannon

Fires when the gunship fires a cannon round

OnFirstDamage

Fired when the first damage is done to the gunship.

OnSecondDamage

Fired when the second damage is done to the gunship.

OnThirdDamage

Fired when the third damage is done to the gunship.

OnFourthDamage

Fired when the fourth damage is done to the gunship.

BaseNPC Outputs

OnDamaged Fired when this NPC takes damage (!activator is the damage inflictor). OnDamagedByPlayer Fired when this NPC is hurt by a player (!activator is the attacker or vehicle driver [if friendly fire]). OnDamagedByPlayerSquad Fired when this NPC is hurt by a player OR by one of the player's squadmates (!activator is the attacker or vehicle driver [if friendly fire]). OnDeath Fired when this NPC is killed (!activator is the killer). OnDenyCommanderUse Fired when this NPC has refused to join the player's squad. OnForcedInteractionAborted Fired when the NPC aborts a forced interaction for some reason (target NPC died, couldn't be pathed to, etc.). OnForcedInteractionStarted Fired when the NPC starts a forced interaction. OnForcedInteractionFinished "NPCs in actbusies can no longer perform dynamic interactions." Todo: What does this mean? OnHalfHealth Fired when this NPC reaches half of its maximum health. OnHearCombat Fired when this NPC hears combat sounds. OnHearPlayer Fired when this NPC hears the player. OnHearWorld Fired when this NPC hears a sound (other than combat or the player). OnFoundEnemy <targetname> Fired when this NPC establishes line of sight to its enemy. OnLostEnemy Fired when this NPC loses its enemy. Usually due to the enemy being killed/removed, or because this NPC has selected a newer, more dangerous enemy. OnLostEnemyLOS Fired when this NPC loses line of sight to its enemy. OnFoundPlayer <targetname> Fired when this NPC establishes line of sight to its enemy, and that enemy is a player. OnLostPlayer Fired when this NPC loses its enemy, and that enemy was a player. Usually due to the enemy being killed/removed, or because this NPC has selected a newer, more dangerous enemy. OnLostPlayerLOS Fired when this NPC loses line of sight to its enemy, and that enemy is a player. OnSleep Fired when this NPC enters a sleep state. OnWake Fired when this NPC comes out of a sleep state.