Doors themselves follows this format:
	+$0: X-Coord
	+$1: Y-Coord
	+$2: Door Style Index
	+$3: (nothing)

	Door Style index depends on the tileset the map is using;
	interestingly, door style params can be found amongst the door data, just before the first
	set of doors found in a map which uses that tileset.

Door Style data (pointed to by map's tileset):
	+$0: 
	+$4: 
	+$8: 
	+$C: 