trigger_once
... 
 class hierarchy
|
|---|
CTriggerOnce defined in triggers.cpp
|
trigger_once is a brush entity available in all 
Source games. It is a trigger volume that removes itself after it has been triggered (touched by a qualifying entity) once. A trigger uses outputs to activate an event in another entity.
Contents
Keyvalues
Targetname:
- Name
(targetname)<string> - The targetname that other entities refer to this entity by.
BaseTrigger:
- Filter Name
(filtername)<filter> - A filter entity to test potential activators against.
- Start Disabled
(StartDisabled)<boolean> - Stay dormant until activated (with the
Enableinput).
Flags
BaseTrigger:
- [
1] : Clients (Survivors, Special Infected, Tanks
)
- [
2] : NPCs (Common Infected, Witches)
- [
4] : func_pushable
- [
8] : Physics Objects
- [
16] : Only player ally NPCs
- [
32] : Only clients in vehicles
- [
64] : Everything (not including physics debris)
- [
512] : Only clients *not* in vehicles
- [
1024] : Physics debris
- [
2048] : Only NPCs in vehicles (respects player ally flag)
- [
4096] : Disallow Bots (removed since
)
Inputs
Toggle- Toggles this trigger between enabled and disabled states.
Enable- Enable trigger
Disable- Disable trigger
StartTouch(in all games since
) !FGD- Behave as if the
!callerentity had just entered the trigger volume. Accepts non-physical entities.
Note:Will trigger OnStartTouch output and the trigger won't be removed.
Warning:If !caller doesn't exist game will crash
StrataEngine:
Touch(only in
Strata Source games)- Behaves as if
!callerhas touched the trigger volume
Outputs
OnStartTouch
OnTrigger- Fired when an entity starts touching this trigger. The touching entity must pass this trigger's filters to cause this output to fire. (
!activatoris the "toucher.")
Warning:If trigger is enabled while multiple entities that can trigger it are touching it, OnStartTouch will fire for each of them. OnTrigger seems to correctly trigger only once.