import { Vector2 } from './structs/Vector2';
import { GameEvent } from './events/GameEvent';
import { Resource, ResourceType } from './structs/Resource';
import { Renderer } from './drawing/Renderer';
import { GameObject } from './gameobjects/GameObject';
import { ClickableGameObject } from './gameobjects/ClickableGameObject';
import { GameStartEvent } from './events/GameStartEvent';
import { GameSettings } from './structs/GameSettings';
import { Input } from './Input';
/**
 * @group Important Classes
 */
export declare class Game {
    readonly canvas: HTMLCanvasElement;
    readonly renderer: Renderer;
    readonly grid: Vector2;
    readonly gameSettings: GameSettings;
    canvasViewOffset: Vector2;
    /**
     * Constructs new Game instance with given settings.
     * @param gameSettings The settings
     */
    constructor(gameSettings: GameSettings);
    /**
     * Scaling canvas size on page to percentage of parent element.
     * @param percentage The decimal midpoint
     * @returns The final canvas size
     */
    RescaleCanvasToParentElement(percentage: number): Vector2;
    private _registerCanvasEvents;
    private _isPlaying;
    private _unscaledTime;
    private _deltaTime;
    timeScale: number;
    isNeedToUpdate: boolean;
    private _gameLoopUpdate;
    private _gameLoopDraw;
    private readonly _gameLoop;
    /**
     * Tells the game it needs to be redrawn.
     * Call it when some visible objects has been changed.
     */
    Update(): void;
    /**
     * Starts new game loop
     */
    StartGameLoop(): void;
    /**
     * WARNING! Stops the game loop
     */
    StopGameLoop(): void;
    /**
     * Starts the game loop and emit `start` ({@link GameEvent}) event.
     */
    Start(): void;
    /**
     * Starts loading game resources and returns promise.
     * @method
     * @returns The Promise
     * @example
     * game.LoadGameAndStart().then((e) => {
     *   console.log('Game sucessfully loaded!');
     * }).catch((error) => {
     *   console.error('Error');
     * }).finally(() => {
     *   console.log("Finally");
     * });
     */
    LoadGameAndStart(): Promise<GameStartEvent>;
    private readonly _signals;
    emit: (channel: string, event: GameEvent) => void;
    /**
     * Appends listener to event channel.
     * @method
     * @param channel - The listener event channel.
     * @param callback - Executed function after receiving a signal on given channel.
     * @example
     * game.on('channel', () => { console.log('received!') });
     */
    on: (channel: string, callback: (event: GameEvent) => void) => void;
    resources: Map<string, Resource>;
    private _isLoadedAllResources;
    /**
     * Loads resource with resource manager.
     * @method
     * @param type - The resource type
     * @param uid - The resource unique key
     * @param path - The resource path
     * @example
     * game.LoadResource('image', 'player', './resources/img/player.png');
     */
    LoadResource(type: ResourceType, uid: string, path: string): void;
    /**
     * Creates {@link HTMLImageElement} from path.
     * @method
     * @param path - The image path
     * @returns The image element
     * @example
     * game.CreateImage('./resources/img/player.png');
     */
    CreateImage(path: string): HTMLImageElement;
    /**
     * Gets the resource by unique resource key.
     * @method
     * @param uid - The unique resource key.
     * @returns The resource
     * @example
     * const resource = game.GetResource('player');
     */
    GetResource(uid: string): Resource;
    /**
     * Gets the image resource by unique resource key.
     * @method
     * @param uid - The unique resource key.
     * @returns The image
     * @example
     * const image = game.GetImage('player');
     */
    GetImage(uid: string): object | undefined;
    /**
     * Starts loading all resources which is not loaded. Emits {@link GameEvent} at `loadAllResources` channel.
     */
    LoadAllResources(): void;
    /**
     * Sorted game object array
     */
    readonly gameObjects: Array<GameObject>;
    /**
     * Sorts all game objects by sorting order property.
     */
    SortGameObjects(): void;
    /**
     * Adds unique game object to game.
     * @method
     * @param gameObject - The unique game object
     * @returns The added game object
     * @example
     * game.AddGameObject(new JSGL.GameObject());
     */
    AddGameObject(gameObject: GameObject): GameObject;
    /**
     * Destroys existed game object by reference
     * @method
     * @param gameObject - The game object reference
     * @example
     * const gameObject = ...
     * game.DestroyGameObjectByRef(gameObject);
     */
    DestroyGameObjectByRef(gameObject: GameObject): void;
    /**
     * Destroys existed game object by unique id
     * @method
     * @param id - The unique id
     * @example
     * game.DestroyGameObjectById('51870300-4187221613-3012590175-3461657014');
     */
    DestroyGameObjectById(id: string): void;
    /**
     * Destroys existed game object by index in game objects array
     * @method
     * @param index - The index
     * @example
     * game.DestroyGameObjectByIndex(0);
     */
    DestroyGameObjectByIndex(index: number): void;
    /**
     * Gets all existed game objects with type equal to param.
     * @param type - The type
     * @returns Array of selected game objects
     * @example
     * game.GetGameObjectsByType(JSGL.Shape);
     */
    GetGameObjectsByType(type: object): Array<GameObject>;
    /**
     * Gets all existed game objects by given name.
     * @method
     * @param name - The name.
     * @returns Array of game objects with given name.
     * @example
     * game.GetGameObjectsByName('exampleName');
     */
    GetGameObjectsByName(name: string): Array<GameObject>;
    /**
     * Gets all existed game objects by given tag.
     * @method
     * @param tag The - tag.
     * @returns The array of game objects with given tag.
     * @example
     * game.GetGameObjectsByTag('exampleTag');
     */
    GetGameObjectsByTag(tag: string): Array<GameObject>;
    /**
     * Gets game object by unique id.
     * @method
     * @param id - The unique id
     * @returns The game object
     * @example
     * game.GetGameObjectById('51870300-4187221613-3012590175-3461657014');
     */
    GetGameObjectById(id: string): GameObject | undefined;
    /**
     * Plays sound at the page.
     * @method
     * @param path - The path to sound file
     * @param loop - is looped?
     * @param volume - The volume decimal midpoint
     * @example
     * game.PlaySound('./resources/sounds/death.mp3', false, 0.8);
     */
    PlaySound(path: string, loop?: boolean, volume?: number): void;
    input: Input;
    /**
     * Use `input.mouseWorldPosition` instead.
     * @deprecated since version 1.0.8
     */
    get mousePos(): Vector2;
    /**
     * Use `input.mouseClientPosition` instead.
     * @deprecated since version 1.0.8
     */
    get mouseClientPos(): Vector2;
    /**
     * Use `input.mousePreciseWorldPosition` instead.
     * @deprecated since version 1.0.8
     */
    get mousePrecisePos(): Vector2;
    /**
     * Use `input.isMousePrimaryButtonDown` instead.
     * @deprecated since version 1.0.8
     */
    get isMousePrimaryButtonDown(): boolean;
    private lastMouseHoveredGameObject;
    get mouseHoveredGameObject(): ClickableGameObject | undefined;
    private constructMouseEvent;
    private mouseMoveHandler;
    private mouseDownHandler;
    private mouseUpHandler;
    private mouseClickHandler;
    private _tempMouseWheelDeltaY;
    private mouseWheelHandler;
    GetRandomPosition(): Vector2;
    GetRandomPositionIn(min: Vector2, max: Vector2): Vector2;
}