Tells if the covering tile should be set to dirty when the building is added on the tile

\brief Toggle the display of debug info (default key used to do that: F11)

\brief Called by the creature during its upkeep when using the room when it is ready to do something (no cooldown or no other action). Returns true if

\brief Tries to withdraw gold from the room. Returns the amount that could be taken (may be less than gold if not enough gold)

No seat can sell Room portals