Module facilities 

What can be built: Kind names every floor tile, room and transport, and the constants here give the lot’s size.

Prices, sizes, star requirements and build limits for a mode come from crate::catalog::catalog, which a frontend reads instead of keeping tables of its own.

Enums

Kind

Everything a player can build.

Constants

LOBBY_INTERVAL

Sky lobbies go every this many floors above the ground floor.

LOT_WIDTH

The lot’s width in tiles. A tile column x runs from 0 to LOT_WIDTH - 1.

MAX_FLOOR

The top floor.

MIN_FLOOR

The lowest basement floor. Floor 1 is the ground floor and floor 0 the first basement.