In the package wolf3d of this project I have implemented a level map parser for the original map data of Wolfenstein 3D.
It is only parsing of the map data itself. That is the location of walls, doors, locations of items and enemies et.c.), and not the sprites or textures. I did not have the time nor the interest to parse the textures.
The textures are, however, supplied as resources in the package.
Wolfenstein 3D is a first-person shooter video game developed by id Software and published by Apogee Software and FormGen. Originally released on May 5, 1992, for DOS.
Wikipedia
Wolfenstein 3D
Wolfenstein 3D have 9 levels or level maps if you like.
When you cleared one level (reached the end point in the map) the game loaded the next level, and the player spawned in the start position of the new map.
The maps, or rather the data, for all levels are stored in a single file GAMEMAPS.WL1. There is a sidecar file MAPHEAD.WL1 that contain information on which locations or offsets different data is stored in the GAMEMAPS.WL1 file.
The game levels were constructed using square 2D building blocks that filled up the space of the level like a square on a chessboard. Either that square/cell was filled with a solid matter like a wall (or door) that could not be moved through, or it was open space. This gave the maps and levels of the game a kind of chunky feeling as there are always square thick walls and perfect 90-degree angles in each corner all throughout the game.
All levels were played in closed space indoors. No open space without any wall in any direction.
Each level map had three layers, all with the same size as the others, where each layer added its own information to a cell. All layers for all levels in Wolfenstein 3D were made up of 64x64 cells. Although it is not a limitation of the map format.
-
Layer 1: Contains the wall and door information.
-
Layer 2: Contains the information on enemies, items and decorations.
-
Layer 3: Was never used for anything (in Wolfenstein 3D at least). Although the map format was used by other games as well.
Almost all information on the map format on this page is derived from the Game maps format page.
The map header file (MAPHEAD) is of varying length and contains three main types of data.
MAPHEAD.WL1 file structure
Byte offset |
Type |
Name |
Description |
0 |
UINT16LE |
magic |
The magic word used to signal RLEW compressed run length section in RLEW compressed data streams. The value is usually |
2 |
INT32LE [100] |
ptr |
100 pointers to start of level 0-99 data in the game maps file. A value less than 1 indicates no level (generally |
402 |
Unknown |
tileinfo |
Optional tileinfo data. |
The game maps file (GAMEMAPS) contain the actual level map data structured in 2 to 4 chunks of data for each level.
The data chunks are one "level header" and 1 to 3 "data planes" for the level.
(In the case of Wolfenstein 3D, the first data plane contains information on wall types and doors, the second data plane contains information on enemies and items, and the third data plane is not used.)
The offset from the start of the GAMEMAP file to the first byte of the level header is pointed out in the information in the MAPHEAD file.
The level header is always 38 bytes and contains offsets to the data planes, width and height of level and the name of the level. The header itself is never compressed.
GAMEMAPS.WL1 level header structure
Offset in header |
Type |
Name |
Description |
0 |
INT32LE |
offPlane0 |
Offset in GAMEMAPS from file start to the beginning of compressed plane 0 data. An offset value of 0 or less denotes that the plane is not present. |
4 |
INT32LE |
offPlane1 |
Offset in GAMEMAPS from file start to the to beginning of compressed plane 1 data. An offset value of 0 or less denotes that the plane is not present. |
8 |
INT32LE |
offPlane2 |
Offset in GAMEMAPS from file start to the to beginning of compressed plane 2 data. An offset value of 0 or less denotes that the plane is not present. |
12 |
UINT16LE |
lenPlane0 |
Length of compressed plane 0 data (in bytes). A length value of 0 denotes that the plane is not present. |
14 |
UINT16LE |
lenPlane1 |
Length of compressed plane 1 data (in bytes). A length value of 0 denotes that the plane is not present. |
16 |
UINT16LE |
lenPlane2 |
Length of compressed plane 2 data (in bytes). A length value of 0 denotes that the plane is not present. |
18 |
UINT16LE |
width |
Width of level (in tiles/cells) |
20 |
UINT16LE |
height |
Height of level (in tiles/cells) |
22 |
char[16] null-terminated |
name |
Internal name for level |
The "data plane" data of a level is located at an offset from the GAMEMAPS file start. It also has a length. Both the offset and length are specified in the "level header" for the level.
If the content of the data plane is compressed, the length in the level header specify the length of the compressed data, not the uncompressed length. The uncompressed size of a data plane is always width * height * <word size> bytes. The word size for map level data is 2 bytes as the tile/cell values are stored as UINT16LE.
If the length in the level header match the calculated uncompressed length, then the data of the data plane is uncompressed.
The data of the data planes are always compressed, although the file format does not require them to be.
The data of the data plane is always compressed with a RLEW run-length algorithm. On top of that compression, there might be a second compression added. That compression might be either "Carmack" or "Huffman".
When the data plane data have been compressed with an algorithm it is always prepended with the uncompressed length/size as a UINT16LE. This feature is crucial for compression algorithm deduction (see below).
If the data is compressed twice with, say RLEW and then Carmack, you will need to decompress the data first using Carmack and then RLEW decompression.
(For Wolfenstein 3D only RLEW with Carmack is used on the data plane data.)
There is no flag or information in the headers to see what compression algorithms that are applied to the data plane data. You can, however, deduce the algorithms used to compress the data by simple data inspection.
-
A data plane data is always initially compressed with RLEW compression. The magic word/sequence used to signal run length fill is the "magic" word found at the very beginning of the MAPHEAD file.
See also The content and structure ofGAMEMAPS.WL1and [rlew_run_length_word]. -
A secondary compression may have been applied after the RLEW compression. That compression may have been either Carmack or Huffman.
See also Carmack. -
Based on the compressed data content, you can deduce what algorithms that have been used. By reading the two first words of the data plane data (both UINT16LE) you can determine if the data is only compressed with RLEW, or if it is compressed with RLEW and then compressed with Carmack. See section on data plane data content and structure.
-
If the data compression cannot be deduced by the method mentioned in step 3 then it is very most likely compressed with RLEW and then Huffman. There are more tests you can perform to be more confident the data is Huffman encoded, but you can never, theoretically, be 100% sure. (No other secondary compression algorithm than Carmack or Huffman is in practice ever used though.)
To detect data compressed only with RLEW check if the first word of the data chunk (the prepended UINT16LE value for the decompressed size) matches the calculated data plane size. If it matches, then the data is only RLEW compressed as the data is always compressed with RLEW.
To detect data compressed with RLEW and then compressed with Carmack check if the second word (of type UINT16LE) of the data chunk matches the calculated data plane size. If it matches, then the data is compressed with RLEW and then compressed with Carmack.
The thing is, when the compressed RLEW data (with its prepended decompressed size), is compressed with Carmack, the first word of the Carmack compressed data is preserved. That first word is the decompressed size prepended to the compressed RLEW data. As the Carmack compressed data is in turn prepended with its decompressed size the RLEW decompressed size ends up in the second word position of the data plane data.
The data in the data planes are all values of type UINT16LE. For a data plane there is one value for each cell/tile in the map.
Wolfenstein 3D uses two data planes where the first plane contains information on walls and doors (there are different textures for different wall types and doors). The second plane contains information on items (treasures, extra life, ammo clips et.c.), enemies and their (initial) locations, decorations (plants, floor lamps, roof lamps, skeletons, food trays).
The amount of cell/tile information for each data plane of the map is width * height. The cells/tiles are stored map line by map line. Where each line is width long and the number of lines is height.
Trivia note for (at least) Wolfenstein 3D.
The cell/tile data lines are stored from top to bottom. This means if you would print the map line by line downwards, you would get the map correctly rendered as it is played in the game.
Remember that the first cell/tile in the data is location [0, height-1] and the last cell/tile in the data plane data is at location [width-1, 0]. It can make a lot of difference when you are trying out the maps and compare them to game play videos on YouTube.
| Map value (hex) | Map plane | Texture name | Description |
|---|---|---|---|
0x01 |
Plane 0 |
WAL00000 |
Grey stone wall |
0x02 |
Plane 0 |
WAL00002 |
Grey stone wall |
0x03 |
Plane 0 |
WAL00004 |
Red Swastika flag on stone wall |
0x04 |
Plane 0 |
WAL00006 |
Hitler frame on grey stone wall |
0x05 |
Plane 0 |
WAL00008 |
cell door (closed door, empty cell) |
0x06 |
Plane 0 |
WAL00010 |
Eagle in grey stone arch |
0x07 |
Plane 0 |
WAL00012 |
Cell door (closed door, skeleton cell) |
0x08 |
Plane 0 |
WAL00014 |
Blue stone wall |
0x09 |
Plane 0 |
WAL00016 |
Blue stone wall |
0x0A |
Plane 0 |
WAL00018 |
Eagle frame on wood wall |
0x0B |
Plane 0 |
WAL00020 |
Hitler frame on wood wall |
0x0C |
Plane 0 |
WAL00023 |
Wood wall |
0x15 |
Plane 0 |
WAL00041 |
Exit door |
0x5A |
Plane 0 |
WAL00098 |
Cyan door with handle to the left, either facing East-West |
0x5B |
Plane 0 |
WAL00098 |
Cyan door with handle to the left, either facing South-North |
0x64 |
Plane 0 |
WAL00102 |
Elevator-ish(?) door |
0x6A … 0x8F |
Plane 0 |
- |
Floor tiles, not used(?) |
| Map value (hex) | Map plane | Texture (sprite) name | Description |
|---|---|---|---|
0x0D |
Plane 1 |
||
0x0E |
Plane 1 |
||
0x0F |
Plane 1 |
||
0x13 |
Plane 1 |
- |
Start point (facing north) |
0x14 |
Plane 1 |
- |
Start point (facing east) |
0x15 |
Plane 1 |
- |
Start point (facing south) |
0x16 |
Plane 1 |
- |
Start point (facing west) |
0x17 |
Plane 1 |
SPR00002 |
Blue puddle(?) |
0x18 |
Plane 1 |
SPR00003 |
Green barrel |
0x19 |
Plane 1 |
SPR00004 |
Wood table |
0x1A |
Plane 1 |
SPR00005 |
Green lamp on the floor |
0x1B |
Plane 1 |
SPR00006 |
Yellow crystal chandelier in the roof |
0x1D |
Plane 1 |
SPR00008 |
White bowl with brown food |
0x1F |
Plane 1 |
SPR00010 |
Plant in gold pot |
0x20 |
Plane 1 |
SPR00011 |
Skeleton lying on floor |
0x22 |
Plane 1 |
SPR00013 |
Brown plant in blue pot |
0x23 |
Plane 1 |
SPR00014 |
Blue flower pot |
0x24 |
Plane 1 |
SPR00015 |
Round table |
0x25 |
Plane 1 |
SPR00016 |
Green lamp in the roof |
0x27 |
Plane 1 |
SPR00018 |
Knight armour statue |
0x2A |
Plane 1 |
SPR00021 |
Heap of bones |
0x2E |
Plane 1 |
SPR00025 |
Brown bowl |
0x2F |
Plane 1 |
SPR00026 |
Chicken drumstick on plate |
0x30 |
Plane 1 |
SPR00027 |
Med-kit |
0x31 |
Plane 1 |
SPR00028 |
Ammo clip |
0x32 |
Plane 1 |
SPR00029 |
Automatic rifle |
0x34 |
Plane 1 |
SPR00031 |
Treasure gold cross |
0x35 |
Plane 1 |
SPR00032 |
Treasure gold cup |
0x36 |
Plane 1 |
SPR00033 |
Treasure chest |
0x38 |
Plane 1 |
SPR00035 |
Blue face orb (extra life) |
0x3A |
Plane 1 |
SPR00037 |
Brown barrel |
0x3C |
Plane 1 |
SPR00038 |
Stone well, blue liquid |
0x3D |
Plane 1 |
SPR00039 |
Stone well, no liquid (empty) |
0x3E |
Plane 1 |
SPR00041 |
Flag on standing pole |
0x5C |
Plane 1 |
? |
|
0x5D |
Plane 1 |
? |
|
0x5E |
Plane 1 |
? |
|
0x5F |
Plane 1 |
? |
|
0x60 |
Plane 1 |
? |
|
0x61 |
Plane 1 |
? |
|
0x6A |
Plane 1 |
||
0x6B |
Plane 1 |
||
0x6C |
Plane 1 |
Enemy soldier in brown |
|
0x6D |
Plane 1 |
? Enemy soldier in brown |
|
0x6E |
Plane 1 |
? Enemy soldier in brown |
|
0x6F |
Plane 1 |
Enemy soldier in brown |
|
0x7C |
Plane 1 |
SPR00095 |
Dead soldier lying on the floor |
0x8A |
Plane 1 |
? |
|
0x91 |
Plane 1 |
SPR00050 |
Enemy soldier in brown |
0x92 |
Plane 1 |
SPR00050 |
Enemy soldier in brown |
0x93 |
Plane 1 |
SPR00050 |
Enemy soldier in brown |
0xB0 |
Plane 1 |
? |
|
0xB4 |
Plane 1 |
? |
|
0xB5 |
Plane 1 |
? |
|
0xB6 |
Plane 1 |
? Enemy soldier in brown |
|
0xB7 |
Plane 1 |
? |
|
0xB9 |
Plane 1 |
? |
|
0xD4 |
Plane 1 |
? |
Plane 0
Plane 0 defines the walls, doors and floors. The tile value can have the following values:
0 - 63 Wall
90 - 101 Door
106 Floor tile
107 - 143 Floor tile
Plane 1
Plane 1 defines all the objects on the map, enemies, health, ornaments, etc. In wl_game.c, the function ScanInfoPlane initialise these objects depending on the value:
Player Start
19 Player Start facing north
20 Player Start facing ease
21 Player Start facing south
22 Player Start facing west
Static Objects
23 - 74 Static Objects
Moving Objects
98 Pushable Wall
180 - 183 Standing Guard Hard
144 - 147 Standing Guard Medium
108 - 111 Standing Guard
184 - 187 Patrolling Guard Hard
148 - 151 Patrolling Guard Medium
112 - 115 Patrolling Guard
124 Dead Guard
188 - 191 Standing Officer Hard
152 - 155 Standing Officer Medium
116 - 119 Standing Officer
192 - 195 Patrolling Officer Hard
156 - 159 Patrolling Officer Medium
120 - 123 Patrolling Officer
198 - 201 Standing SS Hard
162 - 165 Standing SS Medium
126 - 129 Standing SS
202 - 205 Patrolling SS Hard
166 - 169 Patrolling SS Medium
130 - 133 Patrolling SS
206 - 209 Standing Dog Hard
170 - 173 Standing Dog Medium
134 - 137 Standing Dog
210 - 213 Patrolling Dog Hard
174 - 177 Patrolling Dog Medium
138 - 141 Patrolling Dog
106 Spectre SoD
107 Angel SoD
125 Trans SoD
142 Uber SoD
143 Will SoD
160 FakeHitler Wolf
161 Death SoD
178 Hitler Wolf
179 Fat Wolf
196 Schabbs Wolf
197 Gretel Wolf
214 Boss Wolf
215 Gift Wolf
252 - 255 Standing Mutant Hard
234 - 237 Standing Mutant Medium
216 - 219 Standing Mutant
256 - 259 Patrolling Mutant Hard
238 - 241 Patrolling Mutant Medium
220 - 223 Patrolling Mutant
224 - 227 Ghost WolfLevel name: Wolf1 Map1
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3
0 01010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101
1 01010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101
2 01010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101
3 01010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101
4 01010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101
5 01010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101
6 010101010101010101010101010101010101010101010101010101010C0C0C0C0C0C0C0C0C0C0C0C0C0C0C010101010101010101010101010101010101010101
7 010101010101010101010101010101010101010101010101010101010C0C0C0A0C0C0C0C0C0A0C0C0C0C0C010101010101010101010101010101010101010101
8 010101010101010101010101010101010101010101010101010101010C 0C0C0C0C0C0C010101010101010101010101010101010101
9 010101010101 0101010101010101010202010202030102010A 0A0C0C0C0C0C010101010101010101010101010101010101
10 010101010101 0101010101010102 0C 0C 0C0C010101010101010101010101010101010101
11 010101010101 01010101010101 | | 0A0C010101010101010101010101010101010101
12 010101010101 01010101010102 0C 0C 0C0C010101010101010101010101010101010101
13 010101010101020601020402010601010101 010101030101020B 0B0C0C0C0C0C010101010101010101010101010101010101
14 010101010102 020101 010101010101010C 0C0C0C0C0C0C010101010101010101010101010101010101
15 010101010103 030102 010201010101010C0C0C0A0C0C--0C0C0A0C0C0C0C01010101010101010101010101010101010101010101
16 010101010101 02 01010101010C0C0C0C0C 0C0C0C0C0C0C01010101010101010101010101010101010101010101
17 010101010102 | 010101010101010C0C0C 0C0C0C0C0C0C01010101010101010101010101010101010101010101
18 020202020101 01 010101010101010C0C0B 0B0C0101010101010101010101010101010101010101010101010101
19 010201020103 0301020106010201010201010101010C0C0C 0C0C0101010101010101010101010101010101010101010101010101
20 02 0101 01010101010101010101010C0C0C0C0C0C0C 0C0C0C0C010101010101010101010101010101010101010101010101
21 01 020102060101--0101060201010101010101010101010C0C0C0C0C0C0C 0C0C0C0C010101010101010101010101010101010101010101010101
22 01 0101010101 02010101010101010101010101010C0C 0A 0C0C010101010101010101010101010101010101010101010101
23 0201--010101010103 03010101010101010101010101010C0C 0C0C0C 0C0C0C0C010101010101010101010101010101010101010101010101
24 01 0101020101 02010101010101010101010101010C0C 0C0C0C 0C0C0C0C010101010101010101010101010101010101010101010101
25 01 02 01 01010101010101010101010101010C0C 0C0C0C 0C0C0C0C010101010101010101010101010101010101010101010101
26 01 03 03010101010101010101010101010C0C0C0C0C0C0A 0A0C0101010101010101010101010101010101010101010101010101
27 01 01 02 01010101010101010101010101010C0C0C0C0C0C0C 0C0C0101010101010101010101010101090909090909090909090909
28 02 010201020101--0101020101010101010101010101010101010101010C0A--0A0C020202020202020101010101010101090808090808080909090809
29 03 0301 0101010101010101010101020102010302 0103010201010201010101010101010908 0809
30 02 0102 030101010101010101010101 020209090909090909090908 0909
31 01 0102 010101010101010101010106 060908080809080808090908 0809
32 01 01 020101010101010101010101 09 08 0909
33 01 | 030101010101010101010102 | | 0509
34 01 01 010101010101010101010102 08 09 0909
35 01 0101 020201010101010101010106 06080808 09090808 0809
36 02 0101 030101010101010101010102 0202020808 0808080809 0909
37 01 0101 0101010101010101010101010104010201 01020401020102010809 0908080908 0809
38 04 040102010102--0101020201010101010101010101010101010101010808--090808020202020202010809 08080909090908 0908 09080909
39 01 0201010101 010101010101010101010101010101010101010808 0908010101010101010808 090809090908090909090909090909
40 01 0101010102 020101010101010101010101010101010101010809 0908010101010101010809 080809090909090909090909090909
41 02 01 01 010101010101010101010101010101010101010808 0908010101010101010808 090808080808080808080808080101
42 01 03 030101010101010101010101010101010101010809 0808010101010101010809 080809 08 09 09 0809080101
43 02 02 02 020101010101010101010101010101010101010809 0908010101010101010808 08 08080101
44 02 0101020101 020101010102010101010101010101010101010808 0808010101010101010808 | 05080101
45 01 0201020102 010201020203010201060201020101010101010809 0809010101010101010809 08 08080101
46 02 02 031501010101010808 09080101010101010108080908080809 08 08 08 0809080101
47 02 | 64 15010101010809 09080101010101010108080808080808080808080808080808080101
48 01 01 031501010101010809 08080101010101010101010101010101010101010101010101010101
49 010202010202010202010401010102010101010201060102010102010808080808 09080808080808010101010101010101010101010101010101010101
50 010101010101010101011503 01 01 0101010101010108080908090808--0808080808090808010101010101010101010101010101010101010101
51 010101010101010101156B64 01 01 020101010101010809 08 08 0908010101010101010101010101010101010101010101
52 010101010101010101011503 0101010101010101010808 | | 0908010101010101010101010101010101010101010101
53 01010101010101010101010101010101010101010101010101010808 08 08 0908010101010101010101010101010101010101010101
54 01010101010101010101010101 01010101010101010101010809 09 09 0908010101010101010101010101010101010101010101
55 01010101010101010101010101 010101010101010101010108080809080809 08080808080808010101010101010101010101010101010101010101
56 01010101010101010101010101010101010101010101010101010808 08 08 0808010101010101010101010101010101010101010101
57 01010101010101010101010101010101010101010101010101010809 | | 0908010101010101010101010101010101010101010101
58 01010101010101010101010101010101010101010101010101010808 08 08 0808010101010101010101010101010101010101010101
59 010101010101010101010101010101010101010101010101010108080909080809 09080809080808010101010101010101010101010101010101010101
60 01010101010101010101010101010101010101010101010101010808 0808010101010101010101010101010101010101010101
61 01010101010101010101010101010101010101010101010101010809 0808010101010101010101010101010101010101010101
62 01010101010101010101010101010101010101010101010101010808 0808010101010101010101010101010101010101010101
63 01010101010101010101010101010101010101010101010101010808050908050809070809050908050808010101010101010101010101010101010101010101
Start point at: [29, 57]Level name: Wolf1 Map1
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3
0 ################################################################################################################################
1 ################################################################################################################################
2 ################################################################################################################################
3 ################################################################################################################################
4 ################################################################################################################################
5 ################################################################################################################################
6 ################################################################################################################################
7 ################################################################################################################################
8 ##########################################################23 23################################################
9 ############31313434###################################### 19 6F19 19 ################################################
10 ############31313634################ ## ##343435########################################
11 ############31313636 ############## 25 25 | 1B 93| B634########################################
12 ############313136 ############## ## ##353535########################################
13 #################################### ################ ################################################
14 ############ 34351F 1F35 ###### ################ ################################################
15 ############ 1A 34 1AB7###### ##########################--##########################################################
16 ############ 6C ## 6D #################### ########################################################
17 ############3E 19 93 | 25 #################### 93 ########################################################
18 ############ ## 91 #################### 25 ########################################################
19 ############361AB4 1A #################################### ########################################################
20 ## 303A####3636 B5#################################### ########################################################
21 ## 25 ############--############################################ ########################################################
22 ## ########## ################################ ##6C 25 27####################################################
23 ####--############ 25 ################################31 ###### ########################################################
24 ## ########## ################################3130###### ########################################################
25 ## 25 ## 2F## ################################3230###### ########################################################
26 ## 256E## 25 ########################################## 25 ########################################################
27 ## ## 35## B5 ########################################## ########################################################
28 ## ############--##############################################--##########################################################
29 ## 25 ####B4 ##################################22 22##################################2F 173A3A3A####
30 ## #### 22 22 ########################22 B7 22######################## 3A####
31 ## #### 25 25 ######################## ######################## 6E ####
32 ## ## ######################## ## ## ####
33 ## 60 | 72 5E ########################5A 1B 1B 721B | | 5E ####
34 ## ## ######################## ##5AD45E ##60 ####
35 ## #### 25 25 ######################## ######## ########B1 242F 24 B6####
36 ## #### 22 22 ########################22 22########## ##########5C ####
37 ## #### B5 ################################## #################### ########## 2F ####
38 ## 25 ############--##############################################--######################## ##############3B####3C########
39 ## ########## ########################################## ###################### ##############################
40 ## ########## ########################################## 25 ###################### ##############################
41 ## ##B7 18## ########################################## ###################### B5##############################
42 ## 25 ## 25 ########################################## ###################### ###### ## ## ##1D##########
43 ## ##2F ## ########################################## ###################### ## 5F 5FB05E ########
44 ## 25 ########## ########################################## 25 ###################### | 61 5D 5DD4########
45 ## 97 ########## B9 ########################################## B7 ###################### 6D ## 5A8A 5B 2E########
46 ## ## B6################## ################################ ## ## ## ##########
47 ## 5A 25 5C 25 | 6E ## ############## ########################################################
48 ## ## 92################## 25 ########################################################
49 ################################################################## ########################################################
50 ######################## ## ## 30############################--##########################################################
51 ######################## ## ## ##################2A2F ## ## ##############################################
52 ######################## ###################### | 25 | 20 ##############################################
53 ######################################################## ## ## ##############################################
54 ########################## ########################## ## ## ##############################################
55 ########################## 38#################################### ########################################################
56 ######################################################## ## ## ##############################################
57 ######################################################## 14 7C| 25 | 2F 2A##############################################
58 ######################################################## ## ## ##############################################
59 ################################################################## ########################################################
60 ######################################################## ##############################################
61 ######################################################## 25 25 259231##############################################
62 ########################################################B4 2F ##############################################
63 ################################################################################################################################
Start point at: [29, 57]Information on RLEW compression and decompression algorithm can be found on moddingwiki.
My implementation in Golang of RLEW decompression is found here in rlew.go .
Information on John Carmack the developer at IdSoftware and inventor of the compression algorithm.
Information on Carmac compression and decompression algorithm can be found on moddingwiki.
My implementation in Golang of RLEW decompression is found here carmac.go.