import type { ICoordinates, ICoordinatesWithMode } from "../Core/Interfaces/ICoordinates.js";
import type { IDimension } from "../Core/Interfaces/IDimension.js";
import type { Container } from "../Core/Container.js";
import type { GenericInitializer } from "../Types/EngineInitializers.js";
import type { IBounds } from "../Core/Interfaces/IBounds.js";
import type { ICircleBouncer } from "../Core/Interfaces/ICircleBouncer.js";
import { OutModeDirection } from "../Enums/Directions/OutModeDirection.js";
import type { Particle } from "../Core/Particle.js";
import type { SingleOrMultiple } from "../Types/SingleOrMultiple.js";
export declare function safeDocument(): Document;
export declare function safeMatchMedia(query: string): MediaQueryList | undefined;
export declare function safeMutationObserver(callback: (records: MutationRecord[]) => void): MutationObserver | undefined;
export declare function isInArray<T>(value: T, array: SingleOrMultiple<T>): boolean;
export declare function itemFromArray<T>(array: T[], index?: number, useIndex?: boolean): T | undefined;
export declare function isPointInside(point: ICoordinates, size: IDimension, offset: ICoordinates, radius?: number, direction?: OutModeDirection): boolean;
export declare function areBoundsInside(bounds: IBounds, size: IDimension, offset: ICoordinates, direction?: OutModeDirection): boolean;
export declare function calculateBounds(point: ICoordinates, radius: number): IBounds;
export declare function deepExtend(destination: unknown, ...sources: unknown[]): unknown;
export declare function circleBounceDataFromParticle(p: Particle): ICircleBouncer;
export declare function circleBounce(p1: ICircleBouncer, p2: ICircleBouncer): void;
export declare function executeOnSingleOrMultiple<T, U = void>(obj: SingleOrMultiple<T>, callback: (obj: T, index: number) => U): SingleOrMultiple<U>;
export declare function itemFromSingleOrMultiple<T>(obj: SingleOrMultiple<T>, index?: number, useIndex?: boolean): T | undefined;
export declare function getPosition(position: ICoordinatesWithMode, canvasSize: IDimension): ICoordinates;
export declare function cloneStyle(style: Partial<CSSStyleDeclaration>): CSSStyleDeclaration;
export declare function getFullScreenStyle(zIndex: number): CSSStyleDeclaration;
export declare function manageListener(element: HTMLElement | Node | Window | MediaQueryList | typeof globalThis, event: string, handler: EventListenerOrEventListenerObject, add: boolean, options?: boolean | AddEventListenerOptions | EventListenerObject): void;
export declare function getItemsFromInitializer<TItem, TInitializer extends GenericInitializer<TItem>>(container: Container, map: Map<Container, TItem[]>, initializers: Map<string, TInitializer>, force?: boolean): Promise<TItem[]>;
export declare function getItemMapFromInitializer<TItem, TInitializer extends GenericInitializer<TItem>>(container: Container, map: Map<Container, Map<string, TItem>>, initializers: Map<string, TInitializer>, force?: boolean): Promise<Map<string, TItem>>;