Events

• ActivityEndedAnchor

  Anchor to the end of a specific ActivityEvent (after Complete()).

• ActivityEvent

  Fired when an authored `activity` event executes. The activity is a writer-defined mini-form (questions, sliders,…

• ActivityField

  One field on an ActivityEvent. Read-only or writable; numeric fields can carry min/max validation.

• ActivityStartedAnchor

  Anchor to the start of a specific ActivityEvent.

• AdvanceTimeEvent

  Fired when AdvanceTime or SetBucket events execute. Carries the post-advance time view for rendering clock UI.

• AudioCueEvent

  Playback cue for an authored `audioCue` event — a structured audio program (music / ambience / sfx / voice) of one or…

• BackgroundAudioResult

  One audio media asset flagged as eligible to play as a background / menu loop track. Returned by…

• BackgroundClipResult

  One background clip — a media segment authored as ambient B-roll. Returned by GetAllBackgroundClips() and…

• ChoiceSelectedAnchor

  Anchor to the moment the player commits a choice (the SelectChoice call).

• ChoicesPresentedAnchor

  Anchor to the moment the runtime presents choices (the GetChoices return).

• CueAudioRef

  One audio asset a CueSegment can select. The runtime carries metadata; the bytes live in the host's asset pipeline.

• CueSegment

  One playback segment within a cue — a clip selection, loop policy, and scope rule that decides when the segment ends.

• CueSegmentScope

  How long a CueSegment plays before ceding to the next.

• DiagnosticEvent

  Transient runtime diagnostic — reports a recoverable problem (ICU template parse/format failures, scene-stall codes,…

• DialogueEvent

  Text-first narrative line — the lightweight sibling of SequenceEvent for spoken/narrated lines with no video track. Text…

• EnterSceneEvent

  Runtime event fired when an enterScene Event executes. Read from GetEventQueue() and react to scene transitions.

• EventBase

  Base class for everything drained from GetEventQueue(). Dispatch on the concrete subclass (HookEvent, SequenceEvent,…

• EventTiming

  Authored timing annotation on an event — fires Timecode seconds relative to RelativeTo's anchor moment.

• HookEvent

  Host-dispatchable hook fired by an authored `Hook` event. Name is the hook id the writer chose; Params are the named…

• IEventQueueVisitor

  Visitor over runtime-queued events. Every subclass of EventBase declares an `Accept` override that dispatches to the…

• LocationChangedEvent

  v4 location-transition event. Carries the new location's ID and a hydrated LocationView for richer metadata access.

• ModifierBreakdown

  One modifier in a SkillCheckResolvedEvent's breakdown — its label, the expression that gated it, whether it applied, and…

• NoopEventQueueVisitor

  Empty defaults so consumers override only the branches they care about.

• ProjectCompletedEvent

  Runtime event queued once per run when a completeProject event has executed and any project outro has drained. Empty…

• ProjectCompletingErrorEvent

  2026-06-03 per-scene visit-state spec §5 — emitted when SelectChoice fires during the completeProject drain (between…

• SceneBoundaryReachedEvent

  Runtime event fired in Isolated mode when execution would leave the named scene. Emitted alongside `IsComplete = true` —…

• SceneBoundaryReason

  How a SceneBoundaryReachedEvent was triggered.

• SequenceAnchor

  Anchor to a specific SequenceEvent's playback timeline.

• SequenceCaption

  One caption line within a SequenceEvent's playback timeline. Text is locale-resolved + variable-interpolated at…

• SequenceEvent

  Playback cue for an authored `playSequence` event — a video / image / audio asset bundle plus pre-interpolated captions…

• SkillCheckResolvedEvent

  Always fires when a SkillCheck event executes — independent of success/failure outcome events. Carries roll metadata for…

• StopAudioEvent

  Command to stop in-progress audio on a specific layer. Issued by authored `stopAudio` events.

• StoryBeatResult

  One story beat — a recap-worthy moment authored on a media item. Returned by GetStoryBeats() with importance decayed by…

• TimingAnchor

  Base class for the closed set of timing anchors. Pattern-match on the concrete subtype.

• VariableChangedEvent

  Fired after an authored `setVariable` / `setVariableText` event commits a variable mutation. Drives HUD updates without…