NCAA AST Editor - Discussion Thread

lorak
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Re: NCAA AST Editor - Discussion Thread

Postby lorak » Sun Jul 16, 2023 9:14 am

The files I am working on come from Madden NFL 13 PS Vita. Your editor works not only for NCAA 14 PS3 but also for other games with similar structure and file formats as Madden NFL 13 PS Vita.

For Madden NFL 13 PS Vita, File00090 is an .ast file, it contains .dds and a few .apt and .dat files. It is nested like this, qkl_misc.ast->File00458.ast->File00090.ast.

As I said before, the source of the issue is not editing. I got a corrupted file just saving the stock File00458.ast in the editor with another name, replacing none of its contents. As in the image from my previous post, all its contents are now .dat files. Moreover, its file size -it duplicates- and offsets of its contents -adding lots of zeroes at the beginning of the file- have changed just by saving it in the editor. That is the issue. The problem seems to only appear when working through the editor with .ast files "nested in middle" as File00458.ast, in this case.

StingRay68 wrote:You need to provide a lot more info when you're asking about a specific problem.

What other information do you want to know?

Re: NCAA AST Editor - Discussion Thread

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lorak
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Re: NCAA AST Editor - Discussion Thread

Postby lorak » Tue Jul 18, 2023 6:26 pm

A bit more information. The editor works with no issues saving other .ast files, even if they are "nested in the middle". Maybe the problem is the kind of .ast file for that particular file, File00458.ast.

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StingRay68
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Re: NCAA AST Editor - Discussion Thread

Postby StingRay68 » Wed Jul 19, 2023 10:47 am

There are differences in the ast files, especially between games and even the same game on a different platform.
If you've tried just saving a loaded ast file with no edits and it doesn't not save correctly, then the formatting is different enough that it is not going to work with the editor. You might try Luigi's quickbms. http://aluigi.altervista.org/quickbms.htm

lorak
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Re: NCAA AST Editor - Discussion Thread

Postby lorak » Thu Jul 20, 2023 9:37 am

Thanks for the tip!!

lorak
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Re: NCAA AST Editor - Discussion Thread

Postby lorak » Sun Jul 07, 2024 7:39 pm

lorak wrote:The files I am working on come from Madden NFL 13 PS Vita. Your editor works not only for NCAA 14 PS3 but also for other games with similar structure and file formats as Madden NFL 13 PS Vita.

For Madden NFL 13 PS Vita, File00090 is an .ast file, it contains .dds and a few .apt and .dat files. It is nested like this, qkl_misc.ast->File00458.ast->File00090.ast.

As I said before, the source of the issue is not editing. I got a corrupted file just saving the stock File00458.ast in the editor with another name, replacing none of its contents. As in the image from my previous post, all its contents are now .dat files. Moreover, its file size -it duplicates- and offsets of its contents -adding lots of zeroes at the beginning of the file- have changed just by saving it in the editor. That is the issue. The problem seems to only appear when working through the editor with .ast files "nested in middle" as File00458.ast, in this case.

StingRay68 wrote:You need to provide a lot more info when you're asking about a specific problem.

What other information do you want to know?


I was able to edit in an hex editor this file (File00458.ast) that is not possible to edit in the ast editor. My most relevant findings are in the list below.
  1. The length size is zero. This file only has four values per file in the offset information section: A dummy variable, file hash, offset and size.
  2. The offset information section is at the end of the file not at the beginning as with most of the other ast files.
  3. To get the real offset in the file, multiply by 8 the offset value you get in offset information section.

For example, from the offset information section we get that the first file is at 0x000008. No file starts there, however, you get the real offset as 0x000008*8 = 0x000040.

In this kind of ast files (File00458.ast), what we need to put as offset in the offset information section is the real offset divided by eigth. I guess this could be the problem with the ast editor and the reason why it rebuilds a corrupted file.


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