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# Keypoint (UT)

UT :: Actor (UT) >> Keypoint (Package: Engine)

Keypoint is an abstract class. It is the parent of all classes that cause something to happen or have some effect at a particular point in the world.

## Properties

None (beyond those inherited from Actor (UT), of course).

Keypoints have Advanced → bStatic = true by default, which makes it impossible to move them by any means during the game, for instance by attaching them to a Mover (UT) (moving them in UnrealEd works fine, of course).

Roughly, Keypoint child classes are blocking actors, sounds, interpolation path points, and special actors that are only useful in single-player maps.

## Known subclasses

- AmbientSound (UT)
- BlockAll
- BlockMonsters?
- BlockPlayer
- ClipMarker
- DynamicAmbientSound
- Earthquake
- Guardpoint?
- HoldSpot?
- InterpolationPoint
- LocationID
- MakeNaliFriendly
- ObjectPath
- OEMEnd
- PathPoint
- Rockslide
- SpectatorCam
- ThingFactory
- ThrowStuff?
- TriggeredAmbientSound
- WayBeacon?

Category Class (UT)

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