Rooms
Rooms are persistent physical spaces. A room's authored visual description,
sense layers, weather exposure, crowd profile, contents and exits combine into
the appearance a character receives from look.
A Room can carry:
desc visual description
sense_descs sound/smell/touch/atmosphere layers
type semantic room type
outside whether outdoor weather can appear
crowd_base_level baseline ambient population
is_sky_room aerial-transit classification
Characters only receive sensory layers their current body can perceive.
Builders: see help room builder, help room senses,
help room types and help building audit.