Define a room

import type { BmSpace, BuildingSession } from '@opengeometry/floorkit';

export const livingRoom: BmSpace = {
  id: 'living-room',
  name: 'Living room',
  number: '01',
  profile: {
    outerRing: [
      [0.1, 0.1],
      [5.9, 0.1],
      [5.9, 3.9],
      [0.1, 3.9],
    ],
  },
};

export function addRoom(session: BuildingSession): void {
  session.apply(
    {
      kind: 'add-element',
      buildingId: 'building',
      storeyId: 'ground',
      list: 'spaces',
      element: livingRoom,
    },
    session.revision,
  );
}

import { Space } from '@opengeometry/floorkit';

export function roomArea(session: BuildingSession): number | undefined {
  const room = session.currentBuild.elementsById.get('living-room');
  return room instanceof Space ? room.area : undefined;
}