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point_anglesensor is a point entity available in all Source Source games. It detects whether another entity points in a given direction for a period of time.

In code, it is represented by theCPointAngleSensorclass, defined in thepointanglesensor.cppfile.


Target Entity Name (target) <targetname>
Name of the entity whose angles will be sensed.
Look At Entity (lookatname) <targetname>
The entity we want to check to see if the Target Entity is looking at.
Duration (duration) <float>
The amount of time the Target Entity must look at the 'Look at Entity' to trigger this entity, in seconds.
Tolerance (tolerance) <integer>
The tolerance, in degrees, in the checking to determine when the Target Entity is looking at the Look At Entity.


Start Disabled (StartDisabled) <boolean>
Stay dormant until activated (with theEnableinput).


Name (targetname) <string>
The targetname that other entities refer to this entity by.


  •  [1] : Use target entity's angles (NOT position)


Toggle the sensor between enabled and disabled.
Check to see if the Target Entity is facing the Look At Entity within the specified tolerance, firing either the OnFacingLookat or OnNotFacingLookat output based on the result.


Enable/disable this entity from performing its task. It might also disappear from view.


TargetDir <vector>
Fired when the forward direction of the Target Entity changes. Passes the new forward direction as a parameter.
Fired when the Target Entity points at the Look At Entity for more than the specified Duration, or in response to a Test input.
Fires in response to a Test input when the Target Entity is not pointing at the Look At Entity.
FacingPercentage <float>
Normalized value (0..1) where 1 is facing directly at target and 0 is at or beyond the angle of tolerance.

See also