LUA versions for SWBF1/2?

Post by **Teancum** » Sat Jul 11, 2009 3:03 am

Does anyone (particularly Zerted) know the exact version of LUA that SWBF1 or SWBF2 (particularly SWBF2) uses? I know that the LUA system has decompilers, and I think it's just a matter of extracting raw files and then reinserting a proper header, then decompiling, but I'm not sure on the versions. I think I read somewhere that SWBF2 uses 5.0, but I'm fuzzy on that.

*EDIT*

Why oh why did we have forum pruning on in this section? That PSP/PS2/Xbox mod thread is gone, and I really needed some files someone posted to test out LUA decompiling (the PSP scripts for Rebel Raider). There's a luadec.exe (LUA decompiler) demonstration video below. It's not for the faint of heart, but it seems to work.

http://www.youtube.com/watch?v=Qz4LDs18-nY

Frisbeetarian · Post by **Frisbeetarian** » Sat Jul 11, 2009 5:06 am

Teancum wrote:There's a luadec.exe (LUA decompiler) demonstration video below. It's not for the faint of heart, but it seems to work.

But what is it decompiling from, compiled source from luac.exe? It would be of great use if it could decompile from .lvl files, but I don't think that compiled Lua code is just sitting around in .lvl files.

http://www.gametoast.com/forums/viewtop ... =27&t=2572
This talks about which version each game uses, but the first post is gone, so I'm not sure why it's still in the FAQ.

EDIT:
I tried to work a simple file (LinkedTurrets) through THIS which is basically just LuaDec51 with some batch scripts to help end users (it's more than that, but that's not important). I extracted the compiled scripts from mission.lvl with the LVL Extractor, but the output .lub file didn't work through luadec.exe. To make sure, I took the original LinkedTurrets.lua, compiled it, then decompiled it and it worked out fine, so it's not the process I used that was wrong. I also tested the compiled LinkedTurrets.lua to the .lub file that was output from the extractor and while there were similarities, it was not a match.

I'm not saying that LuaDec51 does not work, I'm suggesting that it might not, but that instead this decompiling kitchen doesn't work. There is another luadec.exe for 5.0, but this was the easiest to use, so I tried it first hoping for some back compatibility.

EDIT2:
Looking more into that video, I think I found the source: HERE. The .lub file from that thread has a striking resemblance to the .lub files from the extractor, so it looks like money... if we can get it to work.

Post by **[RDH]Zerted** » Sat Jul 11, 2009 9:08 am

Teancum wrote:I think I read somewhere that SWBF2 uses 5.0, but I'm fuzzy on that.

The topic you linked to says that in its title. If you run luac.exe from the mod tools, it says its v5.0.2. You need to use the v5.0.2 decompiler (LuaDec)

The problem noted so long ago (it might have been said on extract's site instead of GT, I don't remember), was that the number size for swbf2's lua is 4 while the decompiler expected 8 (the decompiler's error message clearly says this). I tried to make the changes a few years ago, but I didn't have the build tools to recompile the decompiler. Now I'm on linux and I do.

I messed with decompiler's config file for a few minutes, then found a different tool that works better. The other tool reconstructs the code, but keeps it coupled with the Lua VM instructions. In theory decompiling with the tool, recompiling with number size 8, and decompiling the result with LuaDec will give us most of the source code back and without the VM instructions. I'm saying most because both tools say they have a few bugs in them. Hopefully, none of the scripts have the complex, unsupported operations. v1.3's code might

I'll mess around with it a little more. If I get it working, I'll post a short tutorial. I've got bunches of stuff to do and don't have time to make any more video tutorials.

Edit:
We can use extract to pull the compiled Lua out of lvl files
We can use ChunkSpy to generate a more readable version of the lub files.
We can use ChunkSpy to recompile the lubs into slightly different profiles (such as to fix the 4->8 number issue).
LuaDec fails with the 4->8 number issue on lub files from extract.
LuaDec fails with unknown number format on 4->8 rewritten/fixed ChunkSpy recompiled files.
For ChunkSpy to fix the 4->8 issue, one has use the command line option: --rewrite "swbf2" after adding the following code at line 135 in ChunkSpy.lua:

Hidden/Spoiler:

[code]  ["swbf2"] = {

    description = "Zerted's attempt at getting extract's lub files working with LuaDec",

    endianness = 0,

    size_int = 4,

    size_size_t = 4,

    size_Instruction = 4,

    size_lua_Number = 8,

    SIZE_OP = 6, SIZE_A = 8, SIZE_B = 9, SIZE_C = 9,

    number_type = "int",

    MAX_STACK = 250,

  },[/code]

SetupTeams.lua extracted from mission.lvl using extract and processed with ChunkSpy:

Hidden/Spoiler:

[code]Pos   Hex Data           Description or Code

------------------------------------------------------------------------

0000                     ** source chunk: ../../extract/scr_setup_teams.lub

                         ** global header start **

0000  1B4C7561           header signature: "\27Lua"

0004  50                 version (major:minor hex digits)

0005  01                 endianness (1=little endian)

0006  04                 size of int (bytes)

0007  04                 size of size_t (bytes)

0008  04                 size of Instruction (bytes)

0009  06                 size of OP (bits)

000A  08                 size of A (bits)

000B  09                 size of B (bits)

000C  09                 size of C (bits)

000D  04                 size of number (bytes)

000E  3BAFEF4B           sample number (single)

                         * chunk platform unrecognized

                         ** global header end **

0012                     ** function [0] definition (level 1)

                         ** start of function **

0012  08000000           string size (8)

0016  3D286E6F6E652900   "=(none)"

                         source name: =(none)

001E  00000000           line defined (0)

0022  00                 nups (0)

0023  00                 numparams (0)

0024  00                 is_vararg (0)

0025  02                 maxstacksize (2)

                         * lines:

0026  00000000           sizelineinfo (0)

                         [pc] (line)

                         * locals:

002A  00000000           sizelocvars (0)

                         * upvalues:

002E  00000000           sizeupvalues (0)

                         * constants:

0032  01000000           sizek (1)

0036  04                 const type 4

0037  0B000000           string size (11)

003B  5365747570546561+  "SetupTea"

0043  6D7300             "ms\0"

                         const [0]: "SetupTeams"

                         * functions:

0046  01000000           sizep (1)

004A                     ** function [0] definition (level 2)

                         ** start of function **

004A  00000000           string size (0)

                         source name: (none)

004E  01000000           line defined (1)

0052  00                 nups (0)

0053  01                 numparams (1)

0054  00                 is_vararg (0)

0055  12                 maxstacksize (18)

                         * lines:

0056  00000000           sizelineinfo (0)

                         [pc] (line)

                         * locals:

005A  00000000           sizelocvars (0)

                         * upvalues:

005E  00000000           sizeupvalues (0)

                         * constants:

0062  1E000000           sizek (30)

0066  04                 const type 4

0067  08000000           string size (8)

006B  736F6C6469657200   "soldier"

                         const [0]: "soldier"

0073  04                 const type 4

0074  06000000           string size (6)

0078  70696C6F7400       "pilot"

                         const [1]: "pilot"

007E  04                 const type 4

007F  08000000           string size (8)

0083  61737361756C7400   "assault"

                         const [2]: "assault"

008B  04                 const type 4

008C  07000000           string size (7)

0090  736E6970657200     "sniper"

                         const [3]: "sniper"

0097  04                 const type 4

0098  07000000           string size (7)

009C  6D6172696E6500     "marine"

                         const [4]: "marine"

00A3  04                 const type 4

00A4  09000000           string size (9)

00A8  656E67696E656572+  "engineer"

00B0  00                 "\0"

                         const [5]: "engineer"

00B1  04                 const type 4

00B2  08000000           string size (8)

00B6  6F66666963657200   "officer"

                         const [6]: "officer"

00BE  04                 const type 4

00BF  08000000           string size (8)

00C3  7370656369616C00   "special"

                         const [7]: "special"

00CB  04                 const type 4

00CC  1D000000           string size (29)

00D0  5363726970744342+  "ScriptCB"

00D8  5F49734D69737369+  "_IsMissi"

00E0  6F6E536574757053+  "onSetupS"

00E8  6176656400         "aved\0"

                         const [8]: "ScriptCB_IsMissionSetupSaved"

00ED  04                 const type 4

00EE  1A000000           string size (26)

00F2  5363726970744342+  "ScriptCB"

00FA  5F4C6F61644D6973+  "_LoadMis"

0102  73696F6E53657475+  "sionSetu"

010A  7000               "p\0"

                         const [9]: "ScriptCB_LoadMissionSetup"

010C  04                 const type 4

010D  06000000           string size (6)

0111  756E69747300       "units"

                         const [10]: "units"

0117  04                 const type 4

0118  06000000           string size (6)

011C  706169727300       "pairs"

                         const [11]: "pairs"

0122  04                 const type 4

0123  05000000           string size (5)

0127  7465616D00         "team"

                         const [12]: "team"

012C  04                 const type 4

012D  07000000           string size (7)

0131  737472696E6700     "string"

                         const [13]: "string"

0138  04                 const type 4

0139  06000000           string size (6)

013D  6C6F77657200       "lower"

                         const [14]: "lower"

0143  04                 const type 4

0144  0C000000           string size (12)

0148  5365745465616D4E+  "SetTeamN"

0150  616D6500           "ame\0"

                         const [15]: "SetTeamName"

0154  04                 const type 4

0155  0C000000           string size (12)

0159  5365745465616D49+  "SetTeamI"

0161  636F6E00           "con\0"

                         const [16]: "SetTeamIcon"

0165  04                 const type 4

0166  06000000           string size (6)

016A  5F69636F6E00       "_icon"

                         const [17]: "_icon"

0170  04                 const type 4

0171  17000000           string size (23)

0175  6875645F7265696E+  "hud_rein"

017D  666F7263656D656E+  "forcemen"

0185  745F69636F6E00     "t_icon\0"

                         const [18]: "hud_reinforcement_icon"

018C  04                 const type 4

018D  0A000000           string size (10)

0191  666C61675F69636F+  "flag_ico"

0199  6E00               "n\0"

                         const [19]: "flag_icon"

019B  04                 const type 4

019C  0D000000           string size (13)

01A0  536574556E697443+  "SetUnitC"

01A8  6F756E7400         "ount\0"

                         const [20]: "SetUnitCount"

01AD  04                 const type 4

01AE  16000000           string size (22)

01B2  5365745265696E66+  "SetReinf"

01BA  6F7263656D656E74+  "orcement"

01C2  436F756E7400       "Count\0"

                         const [21]: "SetReinforcementCount"

01C8  04                 const type 4

01C9  0F000000           string size (15)

01CD  7265696E666F7263+  "reinforc"

01D5  656D656E747300     "ements\0"

                         const [22]: "reinforcements"

01DC  04                 const type 4

01DD  07000000           string size (7)

01E1  69706169727300     "ipairs"

                         const [23]: "ipairs"

01E8  04                 const type 4

01E9  0D000000           string size (13)

01ED  416464556E697443+  "AddUnitC"

01F5  6C61737300         "lass\0"

                         const [24]: "AddUnitClass"

01FA  03                 const type 3

01FB  0000803F           const [25]: (1)

01FF  03                 const type 3

0200  00000040           const [26]: (2)

0204  03                 const type 3

0205  00004040           const [27]: (3)

0209  04                 const type 4

020A  05000000           string size (5)

020E  6865726F00         "hero"

                         const [28]: "hero"

0213  04                 const type 4

0214  0D000000           string size (13)

0218  4164644865726F43+  "AddHeroC"

0220  6C61737300         "lass\0"

                         const [29]: "AddHeroClass"

                         * functions:

0225  00000000           sizep (0)

                         * code:

0229  55000000           sizecode (85)

022D  0A000601           [01] newtable   1   12  0    ; array=8, hash=0

0231  01000002           [02] loadk      2   0        ; "soldier"

0235  41000003           [03] loadk      3   1        ; "pilot"

0239  81000004           [04] loadk      4   2        ; "assault"

023D  C1000005           [05] loadk      5   3        ; "sniper"

0241  01010006           [06] loadk      6   4        ; "marine"

0245  41010007           [07] loadk      7   5        ; "engineer"

0249  81010008           [08] loadk      8   6        ; "officer"

024D  C1010009           [09] loadk      9   7        ; "special"

0251  DF010001           [10] setlist    1   7        ; index 1 to 8

0255  03000102           [11] loadnil    2   2      

0259  05020003           [12] getglobal  3   8        ; ScriptCB_IsMissionSetupSaved

025D  99800003           [13] call       3   1   2  

0261  18800103           [14] test       3   3   0    ; to [16] if true

0265  94008000           [15] jmp        3            ; to [19]

0269  45020003           [16] getglobal  3   9        ; ScriptCB_LoadMissionSetup

026D  99800003           [17] call       3   1   2  

0271  86A20102           [18] gettable   2   3   138

0275  C5020003           [19] getglobal  3   11       ; pairs

0279  00000004           [20] move       4   0      

027D  59010103           [21] call       3   2   5  

0281  DE0E8003           [22] tforprep   3   60       ; to [83]

0285  06230307           [23] gettable   7   6   140

0289  45030008           [24] getglobal  8   13       ; string

028D  86230408           [25] gettable   8   8   142

0291  00800209           [26] move       9   5      

0295  99000108           [27] call       8   2   2  

0299  C5030009           [28] getglobal  9   15       ; SetTeamName

029D  0080030A           [29] move       10  7      

02A1  0000040B           [30] move       11  8      

02A5  59800109           [31] call       9   3   1  

02A9  05040009           [32] getglobal  9   16       ; SetTeamIcon

02AD  0080030A           [33] move       10  7      

02B1  0000040B           [34] move       11  8      

02B5  4104000C           [35] loadk      12  17       ; "_icon"

02B9  1383050B           [36] concat     11  11  12 

02BD  8104000C           [37] loadk      12  18       ; "hud_reinforcement_icon"

02C1  C104000D           [38] loadk      13  19       ; "flag_icon"

02C5  59800209           [39] call       9   5   1  

02C9  05050009           [40] getglobal  9   20       ; SetUnitCount

02CD  0080030A           [41] move       10  7      

02D1  8622030B           [42] gettable   11  6   138

02D5  59800109           [43] call       9   3   1  

02D9  45050009           [44] getglobal  9   21       ; SetReinforcementCount

02DD  0080030A           [45] move       10  7      

02E1  8625030B           [46] gettable   11  6   150

02E5  59800109           [47] call       9   3   1  

02E9  C5050009           [48] getglobal  9   23       ; ipairs

02ED  0080000A           [49] move       10  1      

02F1  59010109           [50] call       9   2   5  

02F5  1E058009           [51] tforprep   9   21       ; to [73]

02F9  0603030D           [52] gettable   13  6   12 

02FD  1880060D           [53] test       13  13  0    ; to [55] if true

0301  54048000           [54] jmp        18           ; to [73]

0305  18000102           [55] test       2   2   0    ; to [57] if true

0309  94018000           [56] jmp        7            ; to [64]

030D  0602010D           [57] gettable   13  2   8  

0311  1880060D           [58] test       13  13  0    ; to [60] if true

0315  D4008000           [59] jmp        4            ; to [64]

0319  0602010D           [60] gettable   13  2   8  

031D  0683060D           [61] gettable   13  13  12 

0321  1880060D           [62] test       13  13  0    ; to [64] if true

0325  14028000           [63] jmp        9            ; to [73]

0329  0506000D           [64] getglobal  13  24       ; AddUnitClass

032D  0080030E           [65] move       14  7      

0331  0603030F           [66] gettable   15  6   12 

0335  46A6070F           [67] gettable   15  15  153

0339  06030310           [68] gettable   16  6   12 

033D  86260810           [69] gettable   16  16  154

0341  06030311           [70] gettable   17  6   12 

0345  C6A60811           [71] gettable   17  17  155

0349  5980020D           [72] call       13  5   1  

034D  5D000009           [73] tforloop   9       1    ; to [75] if exit

0351  14FA7F00           [74] jmp        -23          ; to [52]

0355  05070009           [75] getglobal  9   28       ; hero

0359  46020309           [76] gettable   9   6   9  

035D  18800409           [77] test       9   9   0    ; to [79] if true

0361  D4008000           [78] jmp        4            ; to [83]

0365  45070009           [79] getglobal  9   29       ; AddHeroClass

0369  0507000A           [80] getglobal  10  28       ; hero

036D  8602030A           [81] gettable   10  6   10 

0371  59000109           [82] call       9   2   1  

0375  5D000003           [83] tforloop   3       1    ; to [85] if exit

0379  54F07F00           [84] jmp        -62          ; to [23]

037D  1B800000           [85] return     0   1      

                         ** end of function **

                         * code:

0381  03000000           sizecode (3)

0385  22000000           [1] closure    0   0        ; 0 upvalues

0389  07000000           [2] setglobal  0   0        ; SetupTeams

038D  1B800000           [3] return     0   1      

                         ** end of function **

0391                     ** end of chunk **[/code]

I can slowly read that, but I'm not sure whats worth trying to recreate the lua for. Other then the v1.3 code, what do we need to extract? Err, I guess the PSP stuff Teancum wants. Anything on the PC side?

Frisbeetarian · Post by **Frisbeetarian** » Sat Jul 11, 2009 3:16 pm

Mav's "The Big L" Lua script was also lost.

Post by **Teancum** » Sat Jul 11, 2009 4:52 pm

It's almost not worth it for that effort. Too bad the video doesn't shed more light on the situation.

Post by **Maveritchell** » Sat Jul 11, 2009 5:05 pm

There are a few scripts of mine that I'd like to get my hands on that I could not otherwise. If there's not a way to easily parse the output from this into SWBF2 script luacode, I won't press too hard to see it done, though.

Frisbeetarian · Post by **Frisbeetarian** » Sat Jul 11, 2009 6:42 pm

Teancum wrote:Too bad the video doesn't shed more light on the situation.

The video sheds plenty of light. It more or less tells us exactly what this guy did to decompile his Worms3D files.

I'm not saying that it's easy (the guy who did this even says that it's "very very very hard"), but I am saying that it seems like they have the same type of problems we have, thus their solution may work. I just need to figure out from where to get that Lua50to51.exe (he says that it's used "for replace Single value to Double value").

AlexBond · Post by **AlexBond** » Sat Jul 11, 2009 9:38 pm

It my Video, I making this for show how hard decompile Lub to Lua...
Full video http://rapidshare.com/files/139045930/L ... w.rar.html

About program Lua50to51.exe it my program I writed it long time ago when i have not source of Scripts lua...

You want Lua50to51.exe? Ok I put it here

Download Lua50to51.rar
But you should replace only Float values... Now I not need this program, I get original lua scripts from PS2 version.

P.S. Sorry for bad English

AlexBond.

Post by **[RDH]Zerted** » Sat Jul 11, 2009 11:17 pm

That didn't really help me, but thanks for posting the file. Frisbeetarian's going at this from a slightly different approach than me. He might have more success with it.

I did discover using the --brief argument with ChunkSpy provides a much more readable output. Heres a sample below:

Hidden/Spoiler:

[code]; source chunk: ../scr_setup_teams.lub

; chunk platform unrecognized

; function [0] definition (level 1)

; 0 upvalues, 0 params, 2 stacks

.function  0 0 0 2

.const  "SetupTeams"  ; 0

; function [0] definition (level 2)

; 0 upvalues, 1 params, 18 stacks

.function  0 1 0 18

.const  "soldier"  ; 0

.const  "pilot"  ; 1

.const  "assault"  ; 2

.const  "sniper"  ; 3

.const  "marine"  ; 4

.const  "engineer"  ; 5

.const  "officer"  ; 6

.const  "special"  ; 7

.const  "ScriptCB_IsMissionSetupSaved"  ; 8

.const  "ScriptCB_LoadMissionSetup"  ; 9

.const  "units"  ; 10

.const  "pairs"  ; 11

.const  "team"  ; 12

.const  "string"  ; 13

.const  "lower"  ; 14

.const  "SetTeamName"  ; 15

.const  "SetTeamIcon"  ; 16

.const  "_icon"  ; 17

.const  "hud_reinforcement_icon"  ; 18

.const  "flag_icon"  ; 19

.const  "SetUnitCount"  ; 20

.const  "SetReinforcementCount"  ; 21

.const  "reinforcements"  ; 22

.const  "ipairs"  ; 23

.const  "AddUnitClass"  ; 24

.const  1  ; 25

.const  2  ; 26

.const  3  ; 27

.const  "hero"  ; 28

.const  "AddHeroClass"  ; 29

[01] newtable   1   12  0    ; array=8, hash=0

[02] loadk      2   0        ; "soldier"

[03] loadk      3   1        ; "pilot"

[04] loadk      4   2        ; "assault"

[05] loadk      5   3        ; "sniper"

[06] loadk      6   4        ; "marine"

[07] loadk      7   5        ; "engineer"

[08] loadk      8   6        ; "officer"

[09] loadk      9   7        ; "special"

[10] setlist    1   7        ; index 1 to 8

[11] loadnil    2   2      

[12] getglobal  3   8        ; ScriptCB_IsMissionSetupSaved

[13] call       3   1   2  

[14] test       3   3   0    ; to [16] if true

[15] jmp        3            ; to [19]

[16] getglobal  3   9        ; ScriptCB_LoadMissionSetup

[17] call       3   1   2  

[18] gettable   2   3   138

[19] getglobal  3   11       ; pairs

[20] move       4   0      

[21] call       3   2   5  

[22] tforprep   3   60       ; to [83]

[23] gettable   7   6   140

[24] getglobal  8   13       ; string

[25] gettable   8   8   142

[26] move       9   5      

[27] call       8   2   2  

[28] getglobal  9   15       ; SetTeamName

[29] move       10  7      

[30] move       11  8      

[31] call       9   3   1  

[32] getglobal  9   16       ; SetTeamIcon

[33] move       10  7      

[34] move       11  8      

[35] loadk      12  17       ; "_icon"

[36] concat     11  11  12 

[37] loadk      12  18       ; "hud_reinforcement_icon"

[38] loadk      13  19       ; "flag_icon"

[39] call       9   5   1  

[40] getglobal  9   20       ; SetUnitCount

[41] move       10  7      

[42] gettable   11  6   138

[43] call       9   3   1  

[44] getglobal  9   21       ; SetReinforcementCount

[45] move       10  7      

[46] gettable   11  6   150

[47] call       9   3   1  

[48] getglobal  9   23       ; ipairs

[49] move       10  1      

[50] call       9   2   5  

[51] tforprep   9   21       ; to [73]

[52] gettable   13  6   12 

[53] test       13  13  0    ; to [55] if true

[54] jmp        18           ; to [73]

[55] test       2   2   0    ; to [57] if true

[56] jmp        7            ; to [64]

[57] gettable   13  2   8  

[58] test       13  13  0    ; to [60] if true

[59] jmp        4            ; to [64]

[60] gettable   13  2   8  

[61] gettable   13  13  12 

[62] test       13  13  0    ; to [64] if true

[63] jmp        9            ; to [73]

[64] getglobal  13  24       ; AddUnitClass

[65] move       14  7      

[66] gettable   15  6   12 

[67] gettable   15  15  153

[68] gettable   16  6   12 

[69] gettable   16  16  154

[70] gettable   17  6   12 

[71] gettable   17  17  155

[72] call       13  5   1  

[73] tforloop   9       1    ; to [75] if exit

[74] jmp        -23          ; to [52]

[75] getglobal  9   28       ; hero

[76] gettable   9   6   9  

[77] test       9   9   0    ; to [79] if true

[78] jmp        4            ; to [83]

[79] getglobal  9   29       ; AddHeroClass

[80] getglobal  10  28       ; hero

[81] gettable   10  6   10 

[82] call       9   2   1  

[83] tforloop   3       1    ; to [85] if exit

[84] jmp        -62          ; to [23]

[85] return     0   1      

; end of function

[1] closure    0   0        ; 0 upvalues

[2] setglobal  0   0        ; SetupTeams

[3] return     0   1      

; end of function[/code]

If you need to extract any strings or see which functions get called, this format is good enough for that.

Frisbeetarian · Post by **Frisbeetarian** » Sat Jul 11, 2009 11:34 pm

[RDH]Zerted wrote:Frisbeetarian's going at this from a slightly different approach than me.

Right. I PM'd him on his site about this, that's why he posted.

@AlexBond
I appreciate your quick response. I'll see what I can do with it. Thanks!

Post by **Teancum** » Mon Jul 13, 2009 4:42 pm

Sweet, we've got AlexBond's program. That should allow for full decompiling; it may be repetitive and take forever, but we can recover some important stuff. Even still I personally would rather limit what I did with it. All I want to do is decompile the PSP-exclusive gametypes, the 1.3 patch stuff so Zerted can continue his work, and that's about it.

Frisbeetarian · Post by **Frisbeetarian** » Mon Jul 13, 2009 5:59 pm

Teancum wrote:Sweet, we've got AlexBond's program.

This just means that I can try it his way; I don't know if I'll get anything.

From what I've gathered, much of the problem with decompiling our Lua scripts are the headers. Looking at the first part of each one of our .lub files and one of their .lub files, bits 0-3A are the same with the exception of bit 32 which is 09 in ours instead of 0E. This is why I have hope.

Post by **[RDH]Zerted** » Sat Aug 07, 2010 10:54 am

Any of you guys still have Luadec_preview.avi? All the video links are dead.

Also, we overlooked the comman line arguments of luac.exe.
luac.exe -l src_points.lua gives us something close to the brief listing:

Hidden/Spoiler:

main <(none):0> (3 instructions, 12 bytes at 006244D8)

params, 2 stacks, 0 upvalues, 0 locals, 1 constant, 1 function

[-]	CLOSURE  	0 0	; 00624590

[-]	SETGLOBAL	0 0	; SetupTeams

[-]	RETURN   	0 1 0

function <(none):1> (85 instructions, 340 bytes at 00624590)

param, 18 stacks, 0 upvalues, 0 locals, 30 constants, 0 functions

[-]	NEWTABLE 	1 12 0

[-]	LOADK    	2 0	; "soldier"

[-]	LOADK    	3 1	; "pilot"

[-]	LOADK    	4 2	; "assault"

[-]	LOADK    	5 3	; "sniper"

[-]	LOADK    	6 4	; "marine"

[-]	LOADK    	7 5	; "engineer"

[-]	LOADK    	8 6	; "officer"

[-]	LOADK    	9 7	; "special"

[-]	SETLIST  	1 7

[-]	LOADNIL  	2 2 0

[-]	GETGLOBAL	3 8	; ScriptCB_IsMissionSetupSaved

[-]	CALL     	3 1 2

[-]	TEST     	3 3 0

[-]	JMP      	0 3	; to 19

[-]	GETGLOBAL	3 9	; ScriptCB_LoadMissionSetup

[-]	CALL     	3 1 2

[-]	GETTABLE 	2 3 138	; "units"

[-]	GETGLOBAL	3 11	; pairs

[-]	MOVE     	4 0 0

[-]	CALL     	3 2 5

[-]	TFORPREP 	3 60	; to 83

[-]	GETTABLE 	7 6 140	; "team"

[-]	GETGLOBAL	8 13	; string

[-]	GETTABLE 	8 8 142	; "lower"

[-]	MOVE     	9 5 0

[-]	CALL     	8 2 2

[-]	GETGLOBAL	9 15	; SetTeamName

[-]	MOVE     	10 7 0

[-]	MOVE     	11 8 0

[-]	CALL     	9 3 1

[-]	GETGLOBAL	9 16	; SetTeamIcon

[-]	MOVE     	10 7 0

[-]	MOVE     	11 8 0

[-]	LOADK    	12 17	; "_icon"

[-]	CONCAT   	11 11 12

[-]	LOADK    	12 18	; "hud_reinforcement_icon"

[-]	LOADK    	13 19	; "flag_icon"

[-]	CALL     	9 5 1

[-]	GETGLOBAL	9 20	; SetUnitCount

[-]	MOVE     	10 7 0

[-]	GETTABLE 	11 6 138	; "units"

[-]	CALL     	9 3 1

[-]	GETGLOBAL	9 21	; SetReinforcementCount

[-]	MOVE     	10 7 0

[-]	GETTABLE 	11 6 150	; "reinforcements"

[-]	CALL     	9 3 1

[-]	GETGLOBAL	9 23	; ipairs

[-]	MOVE     	10 1 0

[-]	CALL     	9 2 5

[-]	TFORPREP 	9 21	; to 73

[-]	GETTABLE 	13 6 12

[-]	TEST     	13 13 0

[-]	JMP      	0 18	; to 73

[-]	TEST     	2 2 0

[-]	JMP      	0 7	; to 64

[-]	GETTABLE 	13 2 8

[-]	TEST     	13 13 0

[-]	JMP      	0 4	; to 64

[-]	GETTABLE 	13 2 8

[-]	GETTABLE 	13 13 12

[-]	TEST     	13 13 0

[-]	JMP      	0 9	; to 73

[-]	GETGLOBAL	13 24	; AddUnitClass

[-]	MOVE     	14 7 0

[-]	GETTABLE 	15 6 12

[-]	GETTABLE 	15 15 153	; 1

[-]	GETTABLE 	16 6 12

[-]	GETTABLE 	16 16 154	; 2

[-]	GETTABLE 	17 6 12

[-]	GETTABLE 	17 17 155	; 3

[-]	CALL     	13 5 1

[-]	TFORLOOP 	9 0 1

[-]	JMP      	0 -23	; to 52

[-]	GETGLOBAL	9 28	; hero

[-]	GETTABLE 	9 6 9

[-]	TEST     	9 9 0

[-]	JMP      	0 4	; to 83

[-]	GETGLOBAL	9 29	; AddHeroClass

[-]	GETGLOBAL	10 28	; hero

[-]	GETTABLE 	10 6 10

[-]	CALL     	9 2 1

[-]	TFORLOOP 	3 0 1

[-]	JMP      	0 -62	; to 23

[-]	RETURN   	0 1 0

Post by **AceMastermind** » Sat Aug 07, 2010 2:26 pm

[RDH]Zerted wrote:Any of you guys still have Luadec_preview.avi? All the video links are dead.

Download it and watch it offline:
Luadec_preview.rar

OR

Watch it online:

Post by **Teancum** » Tue Aug 10, 2010 2:24 pm

I know there aren't many of us interested in decompiling, but in looking through SWBF1 munged files if we could only recreate SWBF1's missionlist.lua we could create PS2 and Xbox expansions for SWBF1 with utter (okay, relative) simplicity. I'm really interested in this because even though SWBF2 is a major resource hog in the PS2/Xbox, SWBF1 runs like a dream and is much, much less resource intensive on consoles (it also looks 100x better on the PS2 than SWBF2). So, that being said I'll be direct. If anyone can recreate missionlist.lua for SWBF1, through decompiling or other means I can (and will) build SWBF1 mods for PS2/Xbox.

Now that being said it ain't been done yet, so you PS2/Xbox users just be patient. In fact, don't expect anything unless you hear that we have a working missionlist.lua.

Post by **[RDH]Zerted** » Tue May 17, 2011 3:38 am

Don't remember reading this page before (though I probably just forgot...). It talks a little bit about how the decompilers go about their broken business: http://www.lucasforums.com/showthread.php?t=163836

Also, eAthena uses lub files, though it's modders mostly decompile those by hand.

LUA versions for SWBF1/2?

LUA versions for SWBF1/2?

Re: LUA versions for SWBF1/2?

Re: LUA versions for SWBF1/2?

Re: LUA versions for SWBF1/2?

Re: LUA versions for SWBF1/2?

Re: LUA versions for SWBF1/2?

Re: LUA versions for SWBF1/2?

Re: LUA versions for SWBF1/2?

Re: LUA versions for SWBF1/2?

Re: LUA versions for SWBF1/2?

Re: LUA versions for SWBF1/2?

Re: LUA versions for SWBF1/2?

Re: LUA versions for SWBF1/2?

Re: LUA versions for SWBF1/2?

Re: LUA versions for SWBF1/2?

Re: LUA versions for SWBF1/2?