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# AnimationEvents

Notable milestones that the framework signals during animation playback.

```
enum AnimationEvents
```

## Overview

This enumeration defines the playback states that an animated entity can
indicate to an app. To receive notification of a particular event, create a
completion handler:

```swift
private func onAnimationCompleted(_ event:
    AnimationEvents.PlaybackCompleted) {
        // Define code that runs when the animation completes.
}
```

Then, subscribe the handler on the entity for the state of interest:

```swift
// Get an animation.
let animationName =
entity.availableAnimations.first!.name!

// Pass the animation to an entity and get a controller.
entity.playAnimation(named: animationName, transitionDuration: 0.0)

entitySubscription = view.scene.publisher(for:
    AnimationEvents.PlaybackCompleted.self, on: entity)
        .sink(receiveValue: onAnimationCompleted)
```

## Topics

### Recognizing animation events

[`AnimationEvents.PlaybackStarted`](/documentation/RealityKit/AnimationEvents/PlaybackStarted)

The event raised when an animation has been started.

[`AnimationEvents.PlaybackCompleted`](/documentation/RealityKit/AnimationEvents/PlaybackCompleted)

The event raised when an animation reaches the end of its duration.

[`AnimationEvents.PlaybackLooped`](/documentation/RealityKit/AnimationEvents/PlaybackLooped)

The event raised when an animation loops.

[`AnimationEvents.PlaybackTerminated`](/documentation/RealityKit/AnimationEvents/PlaybackTerminated)

The event raised when an animation has been terminated, regardless of
whether it ran to completion.

### Recognizing skeletal events

[`AnimationEvents.SkeletalPoseUpdateComplete`](/documentation/RealityKit/AnimationEvents/SkeletalPoseUpdateComplete)

Raised immediately after the SkeletalPoseSystem has been updated.

### Recognizing root motion events

[`AnimationEvents.RootMotionDidUpdate`](/documentation/RealityKit/AnimationEvents/RootMotionDidUpdate)

The event raised each frame when a new root motion delta is produced for an entity.


---

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