upgrade_spawn

 upgrade_spawn is a point entity available in Left 4 Dead 2. It is a configurable spawner for weapon upgrades.

Optional FGD edits, for better usability

This entity will spawn a random chosen upgrade, yet you cannot decide its exact rotation. To fix this, modify "Left 4 Dead 2\bin\left4dead2.fgd".
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@PointClass base(Targetname) = upgrade_spawn

and modify it as such:

 @PointClass base(Targetname, Angles)studioprop() = upgrade_spawn
 [
 	laser_sight(integer) : "Laser Sight" : 1
 	upgradepack_incendiary(integer) : "UpgradePack - Incendiary" : 1
 	upgradepack_explosive(integer) : "UpgradePack - Explosive" : 1
 	
 	spawnflags(Flags) =
 	[
 		1 : "Enable Physics on spawned item" : 0
 		2 : "Spawned Item Must Exist" : 0
 	]
 	model(choices) : "Helper Model (Visual aid only)" : "models/w_models/weapons/w_laser_sights.mdl" =
 	[
 
 	"models/w_models/weapons/w_laser_sights.mdl" : "Laser"
 	"models/w_models/weapons/w_eq_explosive_ammopack.mdl" : "Explosive Ammo"
 	"models/w_models/weapons/w_eq_incendiary_ammopack.mdl" : "Incendiary Ammo"
 	]
 ]

Keyvalues

Laser Sight <integer>

UpgradePack - Incendiary <integer>

UpgradePack - Explosive <integer>

Targetname:

Name (targetname) <string>

The targetname that other entities refer to this entity by.

Flags

• 1 : Enable Physics on spawned item
• 2 : Spawned Item Must Exist

Inputs

Targetname:

Kill

Removes this entity from the world.

KillHierarchy

Removes this entity and its children from the world.

 Note: Entities already remove orphaned children upon being removed, but this input removes all children on the same frame, being marginally faster than Kill.

AddOutput <string>

Adds a keyvalue/output to this entity. It can be potentially very dangerous, use with care.
KV Format: <key> <value>
I/O Format: <output name> <targetname>:<inputname>:<parameter>:<delay>:<max times to fire, -1 means infinite>

FireUser1 to FireUser4

Fire the OnUser outputs; see User Inputs and Outputs.

Use  !FGD

Same as a player invoking +use; may not do anything depending on the entity. Can also be invoked by firing an output that does not specify an input.

RunScriptFile <script> (in all games since )

Execute a VScript file from disk, without file extension. The script contents are merged with the script scope of the receiving entity.

RunScriptCode <string> (in all games since )

Execute a string of VScript source code in the scope of the entity receiving the input. String quotation may be needed when fired via console.

 Bug: In , the code is executed in the script scope of the entity that fires the output, not the one receiving the input.

 Warning: Never try to pass string parameters to a script function with this input. It will corrupt the VMF structure because of the nested quotation marks, which then must be removed manually with a text editor.

CallScriptFunction <string> (in all games since ) !FGD

Execute a VScript function in the scope of the receiving entity.

SetLocalOrigin <coordinates> (in all games since ) !FGD

Send this entity to a spot in the map. If the entity is parented to something, it will be offset from the parent by this amount.

SetLocalAngles <angles> (in all games since ) !FGD

Set this entity's angles.

Outputs

Targetname:

OnUser1 to OnUser4

These outputs each fire in response to the firing of the like-numbered FireUser1 to FireUser4 Input; see User Inputs and Outputs.

OnKilled  (only in )

This output fires when the entity is killed and removed from the game.