Trigger portal
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January 2024
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January 2024
trigger_portal is an brush entity in the Source base code. It moves touched entity to a target location, changing the model's orientation to match the exit target. It differs from trigger_teleport in that it "reorients physics" and (probably) preserves velocity. It seems to be an early test of the functionality of portals, which was replaced by prop_portal.
Note:This entity is unavailable in any Valve game, though it has been re-enabled in Portal 2: Community Edition . Other mods using custom binaries can enable the entity by editing
server_base.vpc
to include trigger_portal.cpp
before building the project, or by adding the file within Visual Studio after building the project.Bug:The code for this entity will not compile on its own. See below for how to fix it.
FGD Code
@SolidClass base(Trigger, Angles) = trigger_portal : "A trigger volume which teleports touched entities and reorients their physics." [ RemotePortal(target_destination) : "Remote Portal" : : "The trigger_portal linked to this entity. Entities that touch this entity will be teleported to the Remote Portal." //Inputs input SetRemotePortal(string) : "Set the remote portal to the specified trigger_portal." ]
Code Fixes
Replace line 278 and 302 in trigger_portal.cpp with:
SetContextThink( &CTriggerPortal::DisabledThink, gpGlobals->curtime + 0.1, TRIGGER_DISABLED_THINK );
Remove lines 33 and 77-79, which should be:
DECLARE_SERVERCLASS();
IMPLEMENT_SERVERCLASS_ST( CTriggerPortal, DT_TriggerPortal ) SendPropEHandle(SENDINFO(m_hRemotePortal)), END_SEND_TABLE()
There is no client class to send this entity handle to, nor is one needed.
Keyvalues
- Remote Portal <targetname>
- The trigger_portal linked to this entity. Entities that touch this entity will be teleported to the Remote Portal.
BaseTrigger:
- Filter Name
(filtername)
<filter> - A filter entity to test potential activators against.
- Start Disabled
(StartDisabled)
<boolean> - Stay dormant until activated (with the
Enable
input).
Angles:
- Pitch Yaw Roll (Y Z X)
(angles)
<angle> - This entity's orientation in the world. Pitch is rotation around the Y axis, yaw is the rotation around the Z axis, roll is the rotation around the X axis.
Flags
BaseTrigger:
- [
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
Inputs
SetRemotePortal
<string>- Set the remote portal to the specified trigger_portal.
BaseTrigger:
Toggle
- Toggles this trigger between enabled and disabled states.
Enable
- Enable trigger
Disable
- Disable trigger
TouchTest
(in all games since )- Triggers either the OnTouching or OnNotTouching outputs for whether anything is touching this entity.
StartTouch
(in all games since ) !FGD- Behave as if the
!caller
entity had just entered the trigger volume. Accepts non-physical entities.
EndTouch
(in all games since ) !FGD- Behave as if !caller had just exited the trigger volume.
Outputs
BaseTrigger:
OnStartTouch
- Fired when a valid entity starts touching this trigger.
!activator
is whatever touches the trigger.
OnStartTouchAll
- Fired when a valid entity starts touching this trigger, and no other entities are touching it. If there are any other entities touching the trigger when a new one begins to touch, only
OnStartTouch
will fire.
OnEndTouch
- Fired when a valid entity stops touching this trigger.
Warning:This includes entities which are deleted while inside the trigger. In this case !activator will be invalid.
OnEndTouchAll
- Fired when all valid entities stop touching this trigger.