import type { NodeEvents, NodeProperties } from './Node';
import type { Timeline } from './Timeline';
import { Node } from './Node';
export interface TimelineNodeProperties extends NodeProperties {
    loop: boolean;
    delay: number;
    duration: number;
    paused: boolean;
}
export interface TimelineNodeEvents extends NodeEvents {
    updateCurrentTime: [currentTime: number];
}
export interface TimelineNode {
    on: <K extends keyof TimelineNodeEvents & string>(event: K, listener: (...args: TimelineNodeEvents[K]) => void) => this;
    once: <K extends keyof TimelineNodeEvents & string>(event: K, listener: (...args: TimelineNodeEvents[K]) => void) => this;
    off: <K extends keyof TimelineNodeEvents & string>(event: K, listener: (...args: TimelineNodeEvents[K]) => void) => this;
    emit: <K extends keyof TimelineNodeEvents & string>(event: K, ...args: TimelineNodeEvents[K]) => this;
}
export declare class TimelineNode extends Node {
    loop: boolean;
    delay: number;
    duration: number;
    paused: boolean;
    insideTimeRange: boolean;
    /** Timeline */
    protected get _timeline(): Timeline | undefined;
    protected get _globalCurrentTime(): number;
    protected _loop: boolean;
    protected _delay: number;
    protected _duration: number;
    protected _paused: boolean;
    protected _currentTime: number;
    protected _globalStartTime: number;
    protected _globalDuration: number;
    protected _standalone: boolean;
    protected _localCurrentTime: number;
    get standalone(): boolean;
    get parentGlobalStartTime(): number;
    get currentTime(): number;
    get globalStartTime(): number;
    get globalDuration(): number;
    get globalEndTime(): number;
    get currentTimeProgress(): number;
    isInsideTimeRange(): boolean;
    constructor(properties?: Partial<TimelineNodeProperties>, nodes?: Node[]);
    protected _updateProperty(key: string, newValue: any, oldValue: any): void;
    protected _updateInsideTimeRange(): void;
    /**
     * 开启/关闭独立播放。开启后本节点的 currentTime 取自 {@link setLocalTime}
     * 设置的本地时钟，完全脱离全局时间轴；关闭后恢复跟随全局时间轴。
     */
    setStandalone(on: boolean): this;
    /**
     * 独立播放下设置本地时间（毫秒，相对本节点自身 0 起点）并立即刷新。
     * 由外部循环（如交互运行器）逐帧驱动。
     */
    setLocalTime(ms: number): this;
    protected _updateCurrentTime(force?: boolean): void;
    protected _process(delta: number): void;
}