type Vec3 = [number, number, number];
/**
 * CinematicTrack.ts
 *
 * Keyframe-based cinematic sequencer: position/rotation/fov
 * keyframes, easing curves, playback control, and event cues.
 *
 * @module camera
 */
export type EasingType = 'linear' | 'easeIn' | 'easeOut' | 'easeInOut' | 'smoothStep';
export interface CinematicKeyframe {
    time: number;
    position?: Vec3;
    rotation?: Vec3;
    fov?: number;
    zoom?: number;
    easing: EasingType;
}
export interface CinematicCue {
    time: number;
    event: string;
    data: Record<string, unknown>;
    fired: boolean;
}
export interface CinematicState {
    position: [number, number, number];
    rotation: Vec3;
    fov: number;
    zoom: number;
}
export declare class CinematicTrack {
    private keyframes;
    private cues;
    private currentTime;
    private duration;
    private playing;
    private looping;
    private speed;
    private cueListeners;
    addKeyframe(keyframe: CinematicKeyframe): void;
    addCue(time: number, event: string, data?: Record<string, unknown>): void;
    removeKeyframesAt(time: number): number;
    play(): void;
    pause(): void;
    stop(): void;
    seek(time: number): void;
    setSpeed(speed: number): void;
    setLooping(loop: boolean): void;
    isPlaying(): boolean;
    getCurrentTime(): number;
    getDuration(): number;
    getProgress(): number;
    update(dt: number): CinematicState | null;
    evaluate(time: number): CinematicState;
    private applyEasing;
    onCue(listener: (event: string, data: Record<string, unknown>) => void): void;
    private resetCues;
    private recalcDuration;
    getKeyframeCount(): number;
    getCueCount(): number;
    clear(): void;
}
export {};
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