import { Behaviour } from "../Component.js";
export declare enum XRStateFlag {
    Never = 0,
    Browser = 1,
    AR = 2,
    VR = 4,
    FirstPerson = 8,
    ThirdPerson = 16,
    All = 4294967295
}
export declare class XRState {
    static Global: XRState;
    Mask: XRStateFlag;
    Has(state: XRStateFlag): boolean;
    Set(state: number): void;
    Enable(state: number): void;
    Disable(state: number): void;
    Toggle(state: number): void;
    EnableAll(): void;
    DisableAll(): void;
}
/**
 * XRFlag shows or hides GameObjects based on the current XR state or session.
 * Use for XR-responsive content that should only appear in specific modes.
 *
 * **XR states:**
 * - `Browser` - Normal web browsing (no XR)
 * - `AR` - Augmented reality session
 * - `VR` - Virtual reality session
 * - `FirstPerson` - First-person view mode
 * - `ThirdPerson` - Third-person/spectator view mode
 * - Combine with bitwise OR: `AR | VR`
 *
 * **Debug options:**
 * - `?debugxrflags` - Log flag changes
 * - `?disablexrflags` - Disable all XR flags
 *
 * @example Show only in VR
 * ```ts
 * const flag = myObject.addComponent(XRFlag);
 * flag.visibleIn = XRStateFlag.VR;
 * ```
 *
 * @example Show in AR and VR, hide in browser
 * ```ts
 * flag.visibleIn = XRStateFlag.AR | XRStateFlag.VR;
 * ```
 *
 * @category XR
 * @category Utilities
 * @group Components
 * @see {@link XRStateFlag} for state options
 * @see {@link XRState} for global state management
 * @see {@link DeviceFlag} for device-based visibility
 * @see {@link WebXR} for XR session management
 */
export declare class XRFlag extends Behaviour {
    private static registry;
    static Apply(): void;
    private static firstApply;
    private static buffer;
    visibleIn: number;
    awake(): void;
    onEnable(): void;
    onDestroy(): void;
    get isOn(): boolean;
    UpdateVisible(state?: XRState | XRStateFlag | null): void;
}