import type { MudletMap, MudletRoom } from '../mapIO';
import type { Direction } from './types';
import { OPPOSITE } from './types';
export declare function nextAreaId(map: MudletMap): number;
export declare function nextRoomId(map: MudletMap): number;
export declare function createDefaultRoom(id: number, areaId: number, x: number, y: number, z: number): MudletRoom;
export declare function inferDirection(sx: number, sy: number, tx: number, ty: number): Direction;
export declare function getExit(room: MudletRoom, dir: string): number;
export declare function setExit(room: MudletRoom, dir: Direction, value: number): void;
/** Returns all incoming cardinal-exit references to `targetId` from any room in the map. */
export declare function findNeighborsPointingAt(map: MudletMap, targetId: number): Array<{
    roomId: number;
    dir: Direction;
}>;
/** Cardinals that use 2D map geometry (not up/down/in/out). */
export declare function is2DCardinal(dir: Direction): boolean;
export { OPPOSITE };