[Bug 34674] New: Wine corrupts System Shock 2 save files the character dies on entering the water (diving)

http://bugs.winehq.org/show_bug.cgi?id=34674

Bug #: 34674
           Summary: Wine corrupts System Shock 2 save files the character
                    dies on entering the water (diving)
           Product: Wine
           Version: 1.7.3
          Platform: x86
        OS/Version: Mac OS X
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
    Classification: Unclassified

Created attachment 46225
  --> http://bugs.winehq.org/attachment.cgi?id=46225
System Shock 2 GOG Log

You need to be completely submereged to experience this, there are not many
areas in SS2 where you can do this. The game pauses for the moment and then the
character dies. If you transfer your save file to Windows the issue is still
there, the save file is corrupted. Diving is necessary to complete SS2. I have
a GOG version of the game.

At first I thought this is just a problem with the game itself. But I noticed
that the issue affects only the users of the Mac version (Linux too?) on GOG,
which uses Wine. Check out this forum thread:
http://www.gog.com/forum/system_shock_2/system_shock_2_mac_cant_dive/page1 You
can find there corrupted save files and the ones fixed with an SS2 save files
editor.

The problem certainly needs more testing to be confirmed. The thing is, it
really takes a lot of time to find the area for diving in SS2. We can try to
use save editors to get faster to these places.

Maybe somebody could also check whether the bug occurs on Linux?

The problem can't be reproduced in the demo (there's no water).

Tested with:
Mac OS X 10.7.5, ATI HD 2600 Pro, Mac Driver/X11

[Bug 34674] Wine corrupts (the air supply value is changed to negative) System Shock 2 save files the character dies on entering the water (diving)

http://bugs.winehq.org/show_bug.cgi?id=34674

WineBuG  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Wine corrupts System Shock  |Wine corrupts (the air
                   |2 save files the character  |supply value is changed to
                   |dies on entering the water  |negative) System Shock 2
                   |(diving)                    |save files the character
                   |                            |dies on entering the water
                   |                            |(diving)

[Bug 34674] Wine corrupts (the air supply value is changed to negative) System Shock 2 save files the character dies on entering the water (diving)

http://bugs.winehq.org/show_bug.cgi?id=34674

WineBuG  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |download
                URL|                            |https://archive.org/downloa
                   |                            |d/SystemShock2Demo/SHOCK2.E
                   |                            |XE

--- Comment #1 from WineBuG  ---
It seems that the problem is that at some point the air supply value is changed
to negative.

Although there is no water in the demo, maybe the bug still occurs (the value
is changed)? I'm adding the link to the demo.

[Bug 34674] Wine corrupts (the air supply value is changed to negative) System Shock 2 save files the character dies on entering the water (diving)

http://bugs.winehq.org/show_bug.cgi?id=34674

--- Comment #2 from Bruno Jesus  ---
I can only find expired download links in the thread, except for a link on
mediafire. It would be interesting to have a before and after save. To check
the air supply fields through the files to try understanding what could be
happening.

[Bug 34674] Wine corrupts (the air supply value is changed to negative) System Shock 2 save files the character dies on entering the water (diving)

http://bugs.winehq.org/show_bug.cgi?id=34674

--- Comment #3 from WineBuG  ---
(In reply to Bruno Jesus from comment #2)
> I can only find expired download links in the thread, except for a link on
> mediafire. It would be interesting to have a before and after save. To check
> the air supply fields through the files to try understanding what could be
> happening.

The problem is that it isn't exactly known when this bug happens. So it's
difficult to talk about "before" and "after". Maybe someone should try to
examine debug traces created when saving/loading the game?

There was a workaround file posted on GOG.com forums
(http://www.gog.com/forum/system_shock_2/system_shock_2_mac_cant_dive/post135)
which deactivates the air supply value (just put it in the game's folder). I
will also attach it here.

[Bug 34674] Wine corrupts (the air supply value is changed to negative) System Shock 2 save files the character dies on entering the water (diving)

http://bugs.winehq.org/show_bug.cgi?id=34674

--- Comment #4 from WineBuG  ---
Created attachment 48279
  --> http://bugs.winehq.org/attachment.cgi?id=48279
Diving bug workaround (put the file in the game's folder)

[Bug 34674] Wine corrupts (the air supply value is changed to negative) System Shock 2 save files the character dies on entering the water (diving)

http://bugs.winehq.org/show_bug.cgi?id=34674

--- Comment #5 from WineBuG  ---
Okay, I've found on GOG.com forums the person who posted save files with and
without the bug. He also confirms the bug affects Linux as well. In his own
words:

"I use Linux Mint 14 and I've encountered this issue as well. Oddly enough,
when I played this game for the first time earlier this year, water worked
fine. But on this, my second playthrough, the recreation pool and the biomass
pools have all proven deadly.

Here are the saves:
https://web.archive.org/web/20140425212733/http://ubuntuone.com/4HvpZIWXTf3E...
[I archived the link]

Save 0 and saves 2-6 are all from my current playthrough and save 1 and saves
7-14 are all from my first playthrough. Save 6 is what needs to be fixed and
save 7 (right next to the huge final pool) demonstrates the water being
perfectly swimmable. Hope this helps."

From:
http://www.gog.com/forum/system_shock_2/system_shock_2_mac_cant_dive/post121

[Bug 34674] Wine corrupts (the air supply value is changed to negative) System Shock 2 save files the character dies on entering the water (diving)

https://bugs.winehq.org/show_bug.cgi?id=34674

--- Comment #6 from WineBuG  ---
Err... Anyone? Can this be related to the fact that OS X is a 64-bit system?

[Bug 34674] Wine corrupts (the air supply value is changed to negative) System Shock 2 save files the character dies on entering the water ( diving)

https://bugs.winehq.org/show_bug.cgi?id=34674

WineBuG  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]