/** Serializable photo-mode preferences a game reads to compose its capture UI. */
export interface PhotoModeState {
    /** Photo mode is engaged (game frees the camera / pauses as it sees fit). */
    active: boolean;
    /** Hide the gameplay HUD for a clean shot. */
    hideHud: boolean;
}
/** The out-of-the-box photo-mode state: not active, HUD hidden when it engages. */
export declare const DEFAULT_PHOTO_MODE: PhotoModeState;
/** Observable photo-mode store — genre-agnostic state a game binds its capture flow to. */
export interface PhotoModeStore {
    get(): PhotoModeState;
    /** Engage photo mode. */
    enter(): void;
    /** Leave photo mode. */
    exit(): void;
    toggle(): void;
    setHideHud(hide: boolean): void;
    set(patch: Partial<PhotoModeState>): void;
    subscribe(listener: () => void): () => void;
    snapshot(): PhotoModeState;
    restore(snapshot: Partial<PhotoModeState>): void;
}
/**
 * Serializable, observable photo-mode state (active + hide-HUD). Genre-agnostic
 * plumbing — a game engages it to free its camera and hide gameplay chrome for a
 * clean capture, and reads `hideHud` to conditionally render its HUD. Pair with
 * React `PhotoModeControls` and shell `captureCanvas`.
 *
 * @capability photo-mode observable photo-mode state (active + hide-HUD) a game binds its screenshot/camera flow to
 */
export declare function createPhotoModeStore(initial?: Partial<PhotoModeState>): PhotoModeStore;