/**
 * Adapted from three.js Clock class
 */
export declare class Clock {
    private _autoStart;
    get autoStart(): boolean;
    private _startTime;
    get startTime(): number;
    private _oldTime;
    get oldTime(): number;
    private _elapsedTime;
    get elapsedTime(): number;
    private _running;
    get running(): boolean;
    constructor(autoStart?: boolean);
    start(): void;
    stop(): void;
    /**
     * Calculate how much time has passed from Clock start to input timestamp.
     * Unlike getElapsedTime, this method does not tick oldTime.
     * @param time input time
     */
    getElapsedTimeAny(time: number): number;
    getElapsedTime(): number;
    getDelta(): number;
}