LABDATA

Header

• Length: 38 bytes

Offset	Length	Name	Description
0	2	wall height (scale #1)	relative wall height, 255 corresponding to one floor height?
2	2	camera height	height/y-offset of the camera/player on the map, computed as “(camera_height << 16) + 0xA5”, but also used as-is/16-bit
4	2	unused	-
6	2	background	background of the map (→ 3DBCKGR)
8	2	background y-position	max(1096 – (y_position >> 16), 0)
10	2	fog distance	amount of tiles when the fog starts (should be lower than max visible tiles)
12	2	fog red value	-
14	2	fog green value	-
16	2	fog blue value	-
18	1	unknown	-
19	1	unused	-
20	1	background color	palette index
21	1	unused	-
22	2	fog mode	?
24	2	max light strength	max light strength
26	2	wall width (scale #2)	relative wall width, used as (1 << wall_width), always >= 128 and <= 1024
28	2	background tile amount	-
30	2	max visible tiles	viewing distance / how many tiles the player can see
32	2	unused	-
34	2	lighting	lighting, multiplied with data @0xFAD66 and divided by 100, not entirely sure how being used
36	2	unused	-

Objects

• First 2 bytes: amount of object entries
• Length: 2 + #objects * 66 bytes
• Note: the amount of sub-objects is always 8, but not all are used!

Offset	Length	Name	Description
0	1	autogfx type	→ AUTOGFX
1	1	0×00	0×00
Sub-Objects (amount: 8, length 8 bytes):
i*8 + 0	2	x-offset	x-offset or position on a tile
i*8 + 2	2	y-offset	y-offset or position on a tile
i*8 + 4	2	z-offset	z-offset or position on a tile
i*8 + 6	2	object info number	object info number (if 0: empty/ignore sub-object)

Floor/Ceiling

• First 2 bytes: amount of floor/ceiling entries
• Length: 2 + #floors/ceilings * 10 bytes
• Note: the texture size of all floors/ceilings is 64*64 px

Offset	Length	Name	Description
0	1	properties	→ Floor/Ceiling Properties below
1	1	unknown	-
2	1	unknown	always 0
3	1	unknown	-
4	1	animation	#animations
5	1	unknown	always 0
6	2	texture number	texture number (→ 3DFLOOR)
8	2	unknown	-

Floor/Ceiling Properties

• Set of flags (1 byte)

Bit	Effect
0	unknown
1	self-illuminating floor ?
2	not walkable
3	unknown
4	unknown
5	walkable
6	grayed ?
7	floor using self-illuminating colors ?

Object Info (additional/actual object data)

• First 2 bytes: amount of object info entries
• Length: 2 + #object infos * 16 bytes

Offset	Length	Name	Description
0	1	properties	properties & 0×4 == 1: object is on the floor/ceiling, else: object faces the player
1	3	collision	collision data
4	2	texture number	texture number (→ 3DOBJEC)
6	1	animations	#animations
7	1	unknown	always 0
8	2	texture width	texture width
10	2	texture height	texture height
12	2	map x size	x-size of the object texture on the map
14	2	map y size	y-size of the object texture on the map

Walls

• First 2 bytes: amount of wall entries
• Length: 2 + #walls * 16 bytes + #overlays * 12 bytes
• Note: each wall is directly followed by its overlay data

Offset	Length	Name	Description
0	1	properties	→ Wall Properties below
1	3	collision	collision data
4	2	texture number	texture number (→ 3DWALLS)
6	1	animations	#animations
7	1	autogfx type	→ AUTOGFX
8	1	palette index	palette index (only used when it’s a transparent wall → filled with that color)
9	1	unknown	-
10	2	texture width	texture width
12	2	texture height	texture height
14	2	overlay count	amount of overlays

Wall Properties

• Set of flags (1 byte)

Bit	Effect
0	unknown
1	self-illuminating wall
2	write overlay 0×00 bytes
3	unknown
4	unknown
5	alpha-tested
6	transparent
7	wall using self-illuminating colors ?

Walls Overlays

Offset	Length	Name	Description
0	2	texture number	texture number (→ 3DOVERL)
2	1	animations	#animations
3	1	write zero	write 0×00 bytes? (0: yes, else: no)
4	2	y-offset	y-offset on the wall texture
6	2	x-offset	x-offset on the wall texture
8	2	texture width	texture width
10	2	texture height	texture height