import type { App } from '../App';
import type { Node } from '../Node';
import type { EventType, LightDrawEvent, SceneJSON } from '../types';
export declare function clamp(v: number, min: number, max: number): number;
export type ComponentState = Record<string, unknown>;
export declare function getState(node: Node): ComponentState;
export declare function setState(node: Node, patch: ComponentState): void;
/** Minimal synthetic event for component state changes (Phase 6). */
export declare function syntheticEvent(type: EventType, target: unknown, extra?: Partial<LightDrawEvent>): LightDrawEvent;
export declare function emitChange(node: Node, value: unknown, field?: string): void;
export declare function componentToJSON(node: Node): SceneJSON;
export declare function bindApp(node: Node, app: App): void;
export declare function num(props: Record<string, unknown>, key: string, fallback: number): number;
export declare function str(props: Record<string, unknown>, key: string, fallback?: string): string;
export declare function bool(props: Record<string, unknown>, key: string, fallback?: boolean): boolean;
export declare function getParts(node: Node): Record<string, Node>;
export declare function setParts(node: Node, parts: Record<string, Node>): void;