point_velocitysensor
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 Class hierarchy
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| CPointVelocitySensor |
| PointAngularVelocitySensor.cpp
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point_velocitysensor is a point entity available in all 
Source games except 
Left 4 Dead 2. It detects and outputs an entity's velocity.
Keyvalues
- Name (targetname) <string>
- The name that other entities refer to this entity by, via Inputs/Outputs or other keyvalues (e.g.
parentnameortarget).
Also displayed in Hammer's 2D views and Entity Report.See also: Generic Keyvalues, Inputs and Outputs available to all entities
- Target Entity Name (target) <targetname>
- Name of the entity whose velocity will be sensed.
- Measurement Axis (axis) <vector>
- Defines a vector originating from the entity. If the measured entity moves at speed x in exactly this direction, the point_velocitysensor will output x in it's Velocity output. The magnitude of this vector is irrelevant to the calculation.
- Start Enabled (enabled) <boolean>
- Whether or not to start enabled and active.
Inputs
- Enable
- Enable the sensor.
- Disable
- Disable the sensor.
Outputs
- Velocity <float>
- Fired when the Target's Velocity changes, passing the new velocity. This may be a negative number.