Level and Replay files

The_BoneLESS · Post by **The_BoneLESS** » 28 Jun 2006, 02:38

After looking at Mila, Viper and Skint's code that Skint uses on his website to read informations from a replay file, i started to look closer at those files. I first tried to modify the name of the level, which i did. After, i succeeded to switch a mask from big to horizontal. But those are extremely simple to do.

What i would like to know is :

- Would it be possible ( sure it is ) to create a level, directly by coding it ?
- What the hell is all that so called by milagros junk ?

Sample from the getRecInfo() function programmed by mila, viper and skint

I would like someone, like mila who seems to have a good knowledge of the files, to explain that to me. Because, i would love to make an elma related program.

jaytea · Post by **jaytea** » 28 Jun 2006, 07:20

i dont understand how those fread() functions work exactly, but wouldnt fread($f,1) read the same information over and over? since the variable in the function ($f) doesnt change. i wouldve thought they'd use $i somewhere in the loop code, like fread($f,$i)

but if it does in fact work, judging by the comment on the first line, it probably reads the first 12 bytes of the file. then again..opening a rec file in notepad shows the first 12 chars are useless, the corresponding level name is at a different position. maybe the time of the rec is encoded in the first 12 chars? who knows

zworqy · Post by **zworqy** » 28 Jun 2006, 07:30

Most reading functions in most languages automatically increments after reading.

Post by **Abula** » 28 Jun 2006, 08:37

C: http://en.wikibooks.org/wiki/C_Programm ... d_function
PHP: http://fi.php.net/fread
C++: http://www.cplusplus.com/ref/cstdio/fread.html

Maybe?

skint0r · Post by **skint0r** » 28 Jun 2006, 08:52

You can see the whole code here: http://www.skintatious.net/src/getRecInfo.phps

Actually now that I look at it, I'm not sure what the point is of looping through those 12 bytes instead of just doing fread($f,12). I have no idea what those bytes are either way though.

- Would it be possible ( sure it is ) to create a level, directly by coding it ?

Obviously. I don't think ALE uses magic after all. You could check out these guides by ribot http://elma.not-dot-anything.net/index.php?page=hacking

And to answer your question in skintatious topic ($time * 62500 / 273), Balasz uses some big magic number or something. milagros gave me the code for the proper calculations a while ago, but neither vk or myself could figure out how to use it in PHP.

Code: Select all

double con;
((long *)&con)[1]=0x406c9e01;
((long *)&con)[0]=0xe01e01e1;
i=time*con

milagros · Post by **milagros** » 28 Jun 2006, 11:11

Actually now that I look at it, I'm not sure what the point is of looping through those 12 bytes instead of just doing fread($f,12). I have no idea what those bytes are either way though.

no point in reading 12 bytes one-by-one, I had it in my c++code because saved 11bytes of memory(not really)
I really don't remember what were those 12 bytes, some of them were magic numebr and some of them some info about lev

Would it be possible ( sure it is ) to create a level, directly by coding it ?

sure (check ribot's levs) and rec too (check my slesk recs)

Code: Select all

double con;
((long *)&con)[1]=0x406c9e01;
((long *)&con)[0]=0xe01e01e1;
i=time*con

I simply copied bytes of the double number that elma uses to count time, then those 0.0000000001 differences won't occure and the time should be right
who cares anyway

The_BoneLESS · Post by **The_BoneLESS** » 3 Aug 2006, 21:02

Some other question on an elma file...

With what program can i open the .dat file ? How the hell do you do that?

Xiphias · Post by **Xiphias** » 3 Aug 2006, 22:53

goofu · Post by **goofu** » 3 Aug 2006, 23:36

The_BoneLESS wrote:Some other question on an elma file...

With what program can i open the .dat file ? How the hell do you do that?

max ez

get teh textpad @ http://download.textpad.com/download/v47/txpeng473.exe

Coco · Post by **Coco** » 13 Aug 2006, 11:40

I actually try to read a replay file... hum : quite difficult to understand everything ! If someone could help me :/

I only know parts of state.dat and file.lev structures...
If I can help you, post a PM.

berhabdul · Post by **berhabdul** » 13 Aug 2006, 12:25

Maybe this: http://elma.not-dot-anything.net/index. ... rt=recedit
will help to understand what are those bytes in rec file for

Coco · Post by **Coco** » 17 Aug 2006, 11:23

thanks for help berhabdul, very usefull

berhabdul · Post by **berhabdul** » 17 Aug 2006, 18:16

no problem, if any further help needed - ask, maybe just i know the answer