import type { IPhysics2D } from "..";
import type { IReadonlyGameState } from "./GameState";
import type { Scene } from "./hierarchy_object/Scene";
import { InputHandler } from "./input/InputHandler";
import { Instantiater } from "./Instantiater";
import type { IReadonlyCameraContainer } from "./render/CameraContainer";
import type { IReadonlyGameScreen } from "./render/IReadonlyGameScreen";
import type { WebGLGlobalObject } from "./render/WebGLGlobalObject";
import type { Time } from "./time/Time";
/**
 * do not drive this class
 */
export declare class EngineGlobalObject {
    private readonly _scene;
    private readonly _cameraContainer;
    private readonly _time;
    private readonly _inputHandler;
    private readonly _instantiater;
    private readonly _gameState;
    private readonly _screen;
    private readonly _physics2DProcessor;
    private readonly _domElement;
    private _webGLGlobalObject;
    private readonly _sceneProcessor;
    private readonly _coroutineProcessor;
    private readonly _transformMatrixProcessor;
    /**
     * game scene. You can add objects to the scene.
     */
    get scene(): Scene;
    /**
     * You can get the camera through the camera container.
     *
     * `cameraContainer.camera` value is null until the `onEnable()` message of the camera is called.
     *
     * This problem can be solved by placing the components that use the camera at the bottom of the tree rather than the Camera components.
     */
    get cameraContainer(): IReadonlyCameraContainer;
    /**
     * game screen. You can get the screen size.
     */
    get screen(): IReadonlyGameScreen;
    /**
     * game standard input system.
     * If possible, use this rather than implementing the input system yourself.
     */
    get input(): InputHandler;
    /**
     * time information.
     *
     * typically used to get delta time.
     */
    get time(): Time;
    /**
     * physics2D related operations.
     */
    get physics(): IPhysics2D;
    /**
     * game state.
     */
    get gameState(): IReadonlyGameState;
    /**
     * You can instantiate object through instantiater
     */
    get instantiater(): Instantiater;
    /**
     * dom element.
     *
     * You can use it when you want to receive the event directly from the dom element.
     */
    get domElement(): HTMLElement;
    /**
     * webGL object.
     *
     * if you not use WebGL, this value is null.
     */
    get webGL(): WebGLGlobalObject | null;
}