#1345 MANIAC: Walk infinite loop in bathroom (hack-in-cvs)

[Hannes Krueger]

ScummVM 0.5.7cvs (Dec 18 2003 08:45:43)

Maniac Mansion (classic version) English
Trying to start game 'Maniac Mansion'
7f45ddd6dbfbf8f80c0c0efea4c295bc 00.lfl
Classic V1 game detected

The game freezes in bathroom for disabled (third
floor), when pulling the shower curtain, regardless
whether I use dave or razor...
after freezing cpu usage is up to 100%.
The party is bernard and razor.

Linux/gcc (GCC) 3.2

[kirben]

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I'm unable to reproduce the problem when using ScummVM
cvs under Windows XP.
My guess would be a possible sound related issue, that maybe
only effects certain operating systems ?

[kirben]

Save game in room

[Hannes Krueger]

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when running scummvm with high debug level, the continuing
output (when already freezed) is:

getResourceAddress(Matrix,1) == 0x83c0afc
getResourceAddress(Matrix,2) == 0x83c0abc
getResourceAddress(Matrix,2) == 0x83c0abc
getResourceAddress(Matrix,2) == 0x83c0abc
getResourceAddress(Matrix,2) == 0x83c0abc
getResourceAddress(Matrix,1) == 0x83c0afc
getResourceAddress(Matrix,2) == 0x83c0abc
getResourceAddress(Matrix,2) == 0x83c0abc
getResourceAddress(Matrix,2) == 0x83c0abc
getResourceAddress(Matrix,2) == 0x83c0abc
getResourceAddress(Matrix,1) == 0x83c0afc
getResourceAddress(Matrix,2) == 0x83c0abc
getResourceAddress(Matrix,2) == 0x83c0abc
getResourceAddress(Matrix,2) == 0x83c0abc
getResourceAddress(Matrix,2) == 0x83c0abc
..
..
..

[Max Horn]

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I can't reproduce the problem either...

You might want to check if your data files are damaged... esp. file
24.LFL (which should be 4343 bytes big and have
"a6705590760e9b2ec0115861230fc721" as MD5 checksum).

[kirben]

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Finally managed to reproduce the problem, usng the save
game I attached earlier. Just click on lower white section of
the bath

[Max Horn]

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Ah indeed. What happens is that Actor::walkActorOld() gets stuck
in an endless loop. Actor walking for V1/V2 games differs
somewhat from that of newer games, and we still don't have it
quite right :-(

[James Brown]

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Hacked around in CVS with a breakout recursion counter
variable.

[Eugene Sandulenko]

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Removed the hack. This doesn't appear anymore. Though See
bugreport #1205445.

[Max Horn]

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Are you sure it doesn't occur anymore? As I recall, I had to
try several times in just the right way to reproduce the
issue, but after I had figured out how to do it, I was able
to almost always reproduce it.

I can't test from here right now, I am just wondering
whether you close it because you know of a change in the
code which fixes this (I am not aware of anything in that
direction), or whether you tried it, and in the latter case,
how hard you tried exactly :-)

[Eugene Sandulenko]

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I believe I clicked every pixel on the bath. There was
support for v1 maniac and zak since that and a lot of code
has changed. Which change exactly fixed it I am not sure.

Update: just checkd out old version and easily reproduced
this bug. Does not occur with current CVS for sure (hack is
already removed).

[Max Horn]

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OK, cool, thanks!