Template:Base brush Template:Wrongtitle It is a 'trigger' volume that can fire multiple times. A trigger uses outputs to activate events in other entities.
See also
Keyvalues
- Delay Before Reset
<int>
- Amount of time, in seconds, after the trigger_multiple has triggered before it can be triggered again. Use a trigger_once instead of -1.
- Template:L4D add
- Which team must entirely touch it to fire an OnEntireTeamStartTouch Output.
- 0: None
- 2: Survivors
- 3: Infected
- Template:L4D add
- Whether ghost players can trigger it.
- Template:L4D add
- Whether incapacitated survivors can trigger it.
BaseTrigger
- Filter Name (filtername) <filter>
- A filter entity to test potential activators against.
- Start Disabled (StartDisabled) <boolean>
- Stay dormant until activated (with the
Enableinput).
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Flags
- {| class="mw-collapsible mw-collapsed" style="background:initial;float:no;margin-bottom:1em;margin-left:0;padding-right:0.5em;border:1px solid rgba(255,255,255,0.1); border-left:solid 1px #8bb9e0; padding-left:1em;"
|+ style="text-align:left; white-space:nowrap; font-weight:bold; color:#ddd; " | BaseTrigger
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- Everything (not including physics debris) : [64]
- Clients (Survivors, Special Infected, Tanks
) : [1]
- Only clients in vehicles : [32]
- Only clients *not* in vehicles : [512]
- Disallow Bots (removed since ) : [4096]
- NPCs (Common Infected, Witches ) : [2]
- Only player ally NPCs : [16]
- Only NPCs in vehicles (respects player ally flag) : [2048]
- Physics Objects (not including physics debris) : [8]
- Physics debris (include also physics debris) : [1024]
Pushables (Passes entities with classname func_pushable) : [4] 
- Deprecated.
Equivalent to using Everything + filter_activator_class that filters func_pushable.
|}
Inputs
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.
 Bug:Sleeping prop_physics will never fire "OnTouching". Also applies to entities using prop_physics as base. (tested in:  )
- 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.
- DisableAndEndTouch (only in
  )
- Disables this trigger and calls EndTouch on all currently-touching entities.
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Outputs
- Template:L4D add
- Fired when all members of a team start touching this trigger.
BaseTrigger
- OnStartTouch
- !activator = entity that caused this output
!caller = this entity
Fired when a valid entity starts touching this trigger.
- OnStartTouchAll
- !activator = entity that caused this output
!caller = this entity
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
- !activator = entity that caused this output
!caller = this entity
Fired when a valid entity stops touching this trigger.
 Note:Will also fire for entities touching it when trigger is disabled via Disable input Warning:This includes entities which are deleted while inside the trigger. In this case !activator will be invalid.Warning:OnEndTouch can fire before OnStartTouch under certain circumstances[How?] where both are fired on the same tick and each have the same delay. Fix:Add a slight delay to OnEndTouch.
- OnEndTouchAll
- !activator = entity that caused this output
!caller = this entity
Fired when all valid entities stop touching this trigger.
- OnTouching (in all games since )
- !activator = !caller = this entity
Fired if something is currently touching this trigger when TouchTest is fired.
- OnNotTouching (in all games since )
- !activator = !caller = this entity
Fired if nothing is currently touching this trigger when TouchTest is fired.
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