/**
 * CutsceneTimeline.ts
 *
 * Sequenced animation/event timeline for cutscenes.
 * Supports parallel tracks, timed events, camera control, and dialogue cues.
 *
 * @module animation
 */
export type TimelineEventType = 'animation' | 'camera' | 'dialogue' | 'audio' | 'effect' | 'wait' | 'callback';
export interface TimelineEvent {
    id: string;
    type: TimelineEventType;
    startTime: number;
    duration: number;
    data: Record<string, unknown>;
}
export interface TimelineTrack {
    id: string;
    name: string;
    targetEntity?: string;
    events: TimelineEvent[];
    muted: boolean;
}
export interface CutsceneDefinition {
    id: string;
    name: string;
    duration: number;
    tracks: TimelineTrack[];
    loop: boolean;
}
export interface CutsceneState {
    definition: CutsceneDefinition;
    currentTime: number;
    isPlaying: boolean;
    isPaused: boolean;
    speed: number;
    activeEvents: Set<string>;
    completedEvents: Set<string>;
    triggeredCallbacks: string[];
}
export declare class CutsceneTimeline {
    private cutscenes;
    private callbacks;
    load(definition: CutsceneDefinition): string;
    play(id: string, startTime?: number): boolean;
    pause(id: string): void;
    resume(id: string): void;
    stop(id: string): void;
    setSpeed(id: string, speed: number): void;
    seek(id: string, time: number): void;
    registerCallback(callbackId: string, fn: () => void): void;
    unregisterCallback(callbackId: string): void;
    update(dt: number): Map<string, TimelineEvent[]>;
    getState(id: string): CutsceneState | undefined;
    isPlaying(id: string): boolean;
    getCurrentTime(id: string): number;
    getProgress(id: string): number;
    removeCutscene(id: string): boolean;
}
export declare class CutsceneBuilder {
    private tracks;
    private eventCounter;
    private id;
    private name;
    constructor(id: string, name: string);
    addTrack(name: string, targetEntity?: string): CutsceneBuilder;
    addEvent(trackIndex: number, type: TimelineEventType, startTime: number, duration: number, data?: Record<string, unknown>): CutsceneBuilder;
    build(): CutsceneDefinition;
}
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