import { type Aabb, type Vec2 } from "./geometry.js";
export type SpaceRef = {
    kind: "exterior";
} | {
    kind: "interior";
    id: string;
};
export interface EntityLocation {
    space: SpaceRef;
    position: Vec2;
}
export interface Interior {
    id: string;
    origin: Vec2;
    rotation?: number;
    bounds: Aabb;
    obstacles?: readonly Aabb[];
}
export interface Exterior {
    bounds?: Aabb;
    obstacles?: readonly Aabb[];
}
export interface InteriorsConfig {
    exterior?: Exterior;
    interiors?: readonly Interior[];
    radius?: number;
}
export interface Interiors {
    move(location: EntityLocation, delta: Vec2): EntityLocation;
    enter(location: EntityLocation, id: string): EntityLocation | null;
    leave(location: EntityLocation): EntityLocation | null;
    toInterior(id: string, exterior: Vec2): Vec2 | null;
    toExterior(id: string, interior: Vec2): Vec2 | null;
}
/** Frame conversion and bounded movement across an exterior and its interiors; holds config only, no play state. */
export declare function createInteriors(config?: InteriorsConfig): Interiors;