/**
 * Represents a base class for all game systems. A game system is a class that updates the
 * state of the game world on each frame.
 */
import { Object3D } from 'three';
import { QueryManager } from 'elics/lib/QueryManager';
import { RigidbodyOptions } from '../physics/Rigidbody';
import { System } from 'elics';
import { World } from './World';
export declare const PRIVATE: unique symbol;
/**
 * A base class for all game systems. A game system is a class that updates the
 * state of the game world on each frame.
 */
export declare class GameSystem extends System {
    /** @ignore */
    [PRIVATE]: {
        isImmersive: boolean;
        justEnteredXR: boolean;
        justExitedXR: boolean;
        isXRGameSystem: boolean;
        update: (delta: number, time: number) => void;
    };
    get player(): import("..").Player;
    get scene(): import("three").Scene;
    get camera(): import("three").Camera;
    get renderer(): import("three").WebGLRenderer;
    get globals(): Map<string, any>;
    get physics(): import("..").Physics;
    get assetManager(): import("..").AssetManager;
    get audioManager(): import("..").AudioManager;
    get justEnteredXR(): boolean;
    get justExitedXR(): boolean;
    createGameObject(parent?: Object3D): import("./GameObject").GameObject<import("three").Object3DEventMap>;
    createRigidbody(options: RigidbodyOptions, parent?: Object3D): import("../physics/Rigidbody").Rigidbody;
}
/**
 * A game system that only updates when the app is in immersive mode.
 */
export declare class XRGameSystem extends GameSystem {
    constructor(world: World, queryManager: QueryManager, priority?: number);
}
//# sourceMappingURL=GameSystem.d.ts.map