Subject: Re: resource stripper help
Quote by shaktazuki:My next step is to also output the amounts. This will take significant effort.
Why should it?
Quote by shaktazuki:I wrote the bmp writer and I still didn't know exactly how it works.
You wrote a BMP writer without knowing about how it works?
Nicely done, considering that it seem to work well.
Quote by shaktazuki:I only knew the resource masks / amounts / offset. I wish I knew the rest - if you have a description of the savegame format, I'd like to get it.
The whole format description does not exist yet.
I've decoded a big deal of it, but there are still lots of blind spots.
At the start, a word of version - 0x0046 for 1.04, 0x0045 for 1.56.
Then, a header:
DownloadSource code (Text):struct header104 {
game_type:byte; //0 - Singleplayer, 2 - Campaing, 3 - Multiplayer, 5 - Demo
game_name:array [0..29] of char; //Game name
map_id_1:byte; //Map ID, first entry. Some entries are duplicated, can only speculate why.
level_num:word; //Campaign number, or something like that
//Player names
red_name,green_name,blue_name,gray_name:array[0..29]of char;
//Player types: 0 - Absent, 1 - Human, 2 - Computer
red_type,green_type,blue_type,gray_type,alien_type:byte;
unk104:array[0..4]of byte; //Unknown array, only in 1.04
creation_time:dword; //Timestamp
cpuiq1:byte; //CPU level, first entry
//Times of turn and end of turn, first enries
time_of_turn_1,time_of_end_turn_1:word;
turn_mode_1:byte; //Turn mode: 0 - 'Turn Based, 1 - Simultaneous
map_id_2:dword; //Map id, second entry
time_of_turn_2:dword; //Time of turn, second entry
time_of_end_turn_2:dword; //Time of end turn, second entry
sgold:dword; //Starting gold
turn_mode_2:dword; //Turn mode, second entry
type_of_end:dword; //End condition: 0 - Turns, 1 - Score
amt_to_end:dword; //End condition amount
cpuiq2:dword; //CPU level, second entry
start_raw:dword; //Starting raw
start_fuel:dword; //... fuel
start_gold:dword; //... gold
start_alien:dword; //... aliens
}
(Not exactly C++ syntax, but the structure is preserved)
After that, pass map - one byte per cell passability, then resource map as described above.
After the maps - player information: red, green, blue, gray one after another:
Here the blind spots become more obvious
DownloadSource code (Text):struct playerinfo{
FF1:array[0..39]of byte; //Filled with 0xFF, no idea about meaning
plr_type:byte; //Player type, same as in header
unk0:byte; //Blind spot 1
clan:byte; //Clan ID: 0 thru 7, sequenced as in the game.
research:array[0..7]of resinfo; //Research info, 12 bytes per type, with types going from top to bottom
//first dword - now researched, second dword - unknown, third dword - labs allocated
score:dword; //Score
unk2:word; //Blind spot 2
unkarr1:array[0..92]of byte; //Unknown again
FF2:array[0..11]of byte; //Filled with 0xFF, no reason why known
unk1r:array[0..97]of byte; //And another unknown
unk3:word; //Followed by one more unknown
selunit:word; //Selected unit id
zoom,xoff,yoff:word; //Zoom and offsets of the visible area
buttons:array[0..10]of byte; //UT button states
unk4,unk5,unk6,unk7:word; //Some more unknown values
loses:array[0..175]of byte; //Loses of the player, one byte per unit
unk2r:array[0..9]of byte; //Something...
goldused:word; //Gold used during the game
}
That ends the static part, the stuff downrange from here goes somewhat cryptic.
There are unit updates tables, unit objects, updates objects, construction objects, all without an obvious structure i can cleanly define, the most common being - a word for object id, object type, object record. But there are also size-like intermittents in the stream, i can't find out the sequence of, only ignore.
It can be read nicely enough to do basic conversion to MGA in about 90% of times, but a lot is being lost and not known yet.
After the units part, there are scan maps and message log of some sort.
The current state of my save-game reader.
This one comes with both 1.04 and 1.56 version support, unlike the above one, that only worked on 1.56.
http://www.rumaxclub.ru/etc/maxse_081005_all.zip
.
Artyom Litvinovich
This post has been edited
1
times. Last edit on Oct 05, 2008 10:01 pm by Artlav.
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