func_tankmortar is a brush entity available in 
Half-Life 2, 
Portal, 
Portal 2, 
Counter-Strike: Global Offensive, and 
Black Mesa. This is the Suppression Device on top of the Nexus Building from d3_c17_10a in the chapter "Follow Freeman!" of HL2. The shot will be fired at the exact spot the operator is looking. Note that the operator can potentially be hit by their own shots.
Bug: Mortar damage is hardcoded within Source, and as such cannot be changed via entity parameters. [todo tested in?]Bug: In Portal 2 mortar controllable by player still work, but don't shoot, also if leave controllable volume viewmodel will invisible and mortar still be under control.
Confirm:Can be fixed with plugins? 
Note: In 
Half-Life: Source this entity is very different from other games. On shoot it creates trace line at the end of which forming explosion. Using for some tanks and for guns in c2a5f and c2a5e.Note: ar2explosion use mortar when it shoot, this entity is not in Black Mesa, that means some effects may missed, also console warn about this.
Flags
BaseTank flags
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Active : [1]
Player : [2] !FGD
Humans : [4] !FGD
Aliens : [8] !FGD
Only Direct: The tank will only fire if it's target is in direct line of sight. : [16]
Controllable (by player) : [32]
Damage Kick : [64]
Aim at a particular position : [128] !FGD
Aim assistance : [256] !FGD
NPC : [512] !FGD
NPC Controllable : [1024]
NPC Set Controller : [2048]
Allow friendlies to hit player : [4096]
Don't use range as a factor in determining if something is in view cone : [8192] !FGD
Non-solid. : [32768]
Sound on : [65536] !FGD
Perfect accuracy every 3rd shot at player : [131072]
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Keyvalues
- Name
(targetname) <string>
- The name that other entities refer to this entity by, via Inputs/Outputs or other keyvalues (e.g.
parentname or target).
Also displayed in Hammer's 2D views and Entity Report.
- Explosion Magnitude
(iMagnitude) <integer>
Confirm:Does not function? - Shell travel time
(firedelay) <string>
- How long after the turret fires before the shell impacts.
- Firing start sound
(firestartsound) <sound>
- Sound when mortar begins firing.
Firing end sound (fireendsound) <sound> 
- Deprecated.
Disabled in code.
- Incoming Shell Sound
(incomingsound) <sound>
- Sound of the shell falling on the target.
- Incoming warning time
(warningtime) <float>
- How long before the shell impacts to play the warning sound.
- Fire time variance
(firevariance) <float>
- Shots will fire between this much sooner and this much later. Must be greater than 0.09 for unknown reasons.
BaseTank keyvalues
- Bullets
(bullet) <choices>
- Ammo type. Be aware that some games will use Ammo type instead.
| Literal value |
Description
|
| 0 |
None
|
| 1 |
Pistol
|
| 2 |
SMG1
|
| 3 |
AR2 (shows pistol/smg1 bullets?)
|
| 4 |
Laser (does nothing)
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- Ammo type
(ammotype) <choices>
- Ammo type. Be aware that some games will use Bullets instead.
| Value |
Description
|
|
None
|
Pistol |
Pistol
|
SMG1 |
SMG1
|
AR2 |
AR2
|
CombineHeavyCannon |
Combine Heavy Cannon (Episode 2 autogun)
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- Control Volume
(control_volume) <targetname>
- Name of a trigger the player must be inside to control the tank.
- (Team) Master
(master) <string>
- Not used for Source. Provided for backwards compatibility with
multisource or game_team_master.
- Yaw rate
(yawrate) <string>
- How fast tank can look left or right.
- Yaw range
(yawrange) <string>
- How far tank can turn left or right.
- Yaw tolerance
(yawtolerance) <string>
- Additional left-right range. If the gun tries to turn beyond Yaw range + Yaw tolerance, the gun will snap back to the maximum Yaw range.
- Pitch rate
(pitchrate) <string>
- How fast tank can look up or down
- Pitch range
(pitchrange) <string>
- How far tank can turn up or down
- Pitch tolerance
(pitchtolerance) <string>
- Additional up-down range. If the gun tries to turn beyond Pitch range + Pitch tolerance, the gun will snap back to the maximum Pitch range.
- Barrel Length
(barrel) <string>
- Solid length of the tank barrel. Any part of the barrel beyond this length may clip through objects.
- Barrel Horizontal
(barrely) <string>
- How wide the barrel is, horizontally.}
- Barrel Vertical
(barrelz) <string>
- How wide the barrel is, vertically.
- Smoke Sprite
(spritesmoke) <sprite>
- Smoke sprite to emit when gun fires.
Bug:Transparency may not work. [todo tested in?]
- Flash Sprite
(spriteflash) <sprite>
- Flash sprite to emit when gun fires.
- Sprite scale
(spritescale) <string>
- Sprite scale for both sprites above.
- Rotate Start Sound
(rotatestartsound) <sound>
- Sound to play when tank starts to turn.
- Rotate Loop Sound
(rotatesound) <sound>
- Sound to play when tank is turning.
- Rotate Stop Sound
(rotatestopsound) <sound>
- Sound to play when tank stops turning.
- Rate of Fire
(firerate) <string>
- Number of bullets to fire in a second.
- Damage Per Bullet
(bullet_damage) <string>
- How much a single bullet hurts everything except the player. If
0, takes amount from the type of bullet/damage.
- Damage Per Bullet Vs Player
(bullet_damage_vs_player) <string>
- How much a single bullet hurts the player only. If
0, takes amount from the type of bullet/damage.
- Firing persistence
(persistence) <string>
- How many seconds to keep firing at target's last known position after losing LOS (for NPCs).
- Firing persistence2
(persistence2) <string>
- After Firing persistence is over, how many seconds to periodically fire at target's last known position (for NPCs).
- Bullet accuracy
(firespread) <choices>
- How accurately the gun can fire.
- 0: Perfect Shot
- 1: Small cone
- 2: Medium cone
- 3: Large cone
- 4: Extra-large cone
- Minimum target range
(minRange) <string>
- Minimum range to target something (for NPCs). If a target is closer than this amount, the NPC will probably switch to any weapon they have on them.
- Maximum target range
(maxRange) <string>
- Maximum range to target something (for NPCs).
Confirm:This may actually be the distance for aim assistance instead?
- Gun Base Attachment
(gun_base_attach) <string>
- If Parent is specified, this is the attachment point on the parent to aim from.
- Gun Barrel Attachment
(gun_barrel_attach) <string>
- If Parent is specified, this is the attachment point on the parent to fire from. If you specify this, you'll want to specify the Gun Base Attachment too.
- Gun Yaw Pose Param
(gun_yaw_pose_param) <string>
- If Parent and Gun Pitch Pose Param are specified, then the gun itself will be invisible and the tank will steer a gun on the parent using the pose parameters.
- Gun Yaw Pose Center
(gun_yaw_pose_center) <float>
- The center yaw pose parameter of the gun on the parent.
- Gun Pitch Pose Param
(gun_pitch_pose_param) <string>
- If Parent and Gun Yaw Pose Param are specified, then the gun itself will be invisible and the tank will steer a gun on the parent using the pose parameters.
- Gun Pitch Pose Center
(gun_pitch_pose_center) <float>
- The center pitch pose parameter of the gun on the parent.
- Ammunition Count
(ammo_count) <integer>
- Amount of ammo when player is using. -1 = unlimited ammo.
- Lead Target
(LeadTarget) <boolean>
- Aim ahead to hit moving targets (for NPCs).
- NPC Man Point
(npc_man_point) <targetname>
- Point where NPC must stand to use.
- Post-NPC Attack Grace Period
(playergraceperiod) <float>
- If specified, NPC's manning this func tank won't fire at the player, after firing at a non-player, for this amount of time.
- Ignore Grace Upto
(ignoregraceupto) <float>
- The player grace period is ignored if the player is under this distance from the tank.
- Player Lock Time
(playerlocktimebeforefire) <float>
- The tank must be aiming right on the player for this amount of time before it's allowed to fire.
- Effect Handling
(effecthandling) <choices>
- Produce these sound and particle effects when firing.
- 0: Use Individual Settings.
- 1: AR2
- 2: Combine Cannon
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Inputs
ShootGun !FGD- Shoot the gun.
FireAtWill- Allow tank to fire the next shot as soon as it's ready.
BaseTank inputs
Activate- Turn the tank on.
Deactivate- Turn the tank off (go dormant).
SetFireRate <float>- How fast to fire (0 = don't fire).
SetDamage <integer>- Set the Damage Per Bullet keyvalue.
SetTargetPosition <vector>- World position (coordinates) that to aim at
SetTargetDir <vector>- Direction (pitch yaw roll) to aim at.
SetTargetEntityName <targetname>- "Set the entity I should follow/attack to the closest entity matching this name."[Clarify]
SetTargetEntity <entity>- "Set the entity I should follow/attack to the passed in entity. This requires an output which passes an entity through the output."[Clarify]
ClearTargetEntity- Clear the entity memory of any targets it was told to attack.
FindNPCToManTank <string>- Find a nearby capable NPC to man this tank.
StartFindingNPCs- Start searching for capable NPCs to man this tank.
StopFindingNPCs- Stop searching for capable NPCs to man this tank.
ForceNPCOff- Force the NPC manning this tank (if any) to leave.
SetMaxRange <float>- Set the max range of the tank.
Confirm:Maximum distance a shot can go?
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Outputs
BaseTank outputs
OnFire- Fires when the tank fires its bullets.
OnAquireTarget- Fires when target is newly in range and can be shot.
OnLoseTarget- Fires when when target goes out of range.
OnAmmoDepleted- DO NOT USE. Exists in code, but never coded to fire at any point.
OnGotController- Fires when an NPC starts to control this tank. Players do NOT fire this input.
OnGotPlayerController- Fires when a Player starts to control this tank. NPCs do NOT fire this input.
OnLostController- Fires when the NPC controller of the tank stops controlling it. Players do NOT fire this input.
OnLostPlayerController- Fires when the Player controller of the tank stops controlling it. NPCs do NOT fire this input.
OnReadyToFire- Fires once when the tank spawns, or is done waiting to fire between rounds. Useful for playing a reloading/charging/searching sound possibly.
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Class hierarchy
