import { Entity } from './entity';
import { BoundingBox, EntitySettings } from './types';
export declare function $new<K extends HTMLElement>(name: string): K;
export declare function getImagePixels(image: HTMLImageElement, x: number, y: number, width: number, height: number): any;
export declare function setVendorAttribute(el: any, attr: string, val: boolean): void;
export declare function getVendorAttribute(el: any, attr: string): any;
export declare function normalizeVendorAttribute(el: any, attr: any): void;
export declare function deg2rad(angle: number): number;
export declare function limit(x: number, min: number, max: number): number;
/**
 * Returns true if two axis-aligned bouding boxes
 */
export declare function aabbCollides(rectA: BoundingBox, rectB: BoundingBox): boolean;
/**
 * Normalizes the path of an asset to be usable by the engine
 */
export declare function normalizeAssetPath(path: string): string;
/**
 * Returns the nearest power-of-2
 */
export declare function nearestPow2(aSize: number): number;
export declare function randomBetween(min: number, max: number): number;
export declare function applyEntitySettings(entity: Entity, settings: EntitySettings): void;