code/controllers/subsystem/minimap.dm

/var/SSminimaps
/datum/hud_displays	Holder datum for a zlevels data, concerning the overlays and the drawn level itself The individual image trackers have a raw and a normal list raw lists just store the images, while the normal ones are assoc list of [tracked_atom] = image the raw lists are to speed up the Fire() of the subsystem so we dont have to filter through WARNING! There is a byond bug: http://www.byond.com/forum/post/2661309 That that forces us to use a seperate list ref when accessing the lists of this datum Yea it hurts me too
/datum/minimap_updator	Holder datum to ease updating of atoms to update
/atom/movable/screen/minimap	Default HUD screen minimap object
/datum/action/minimap	Action that gives the owner access to the minimap pool