Opened 20 months ago
Last modified 19 months ago
#14388 new defect
SCI: Police Quest SWAT - Demo - Missing version 4 robot decoding
Reported by: | dwatteau | Owned by: | |
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Priority: | normal | Component: | Engine: SCI |
Version: | Keywords: | kRobot, RobotDecoder | |
Cc: | Game: | Police Quest: SWAT |
Description
This happens with either ScummVM 2.7.0 or current HEAD, using the pqswat-win-demo-en.zip
demo, or the original files from my French Torin's Passage SierraOriginals CD (which has a demo for Police Quest SWAT).
Loading the demo in ScummVM and waiting a bit, the console will eventually open with the following fatal error:
ERROR: Invalid robot file 11.rbt!
Looking at the associated code (<https://github.com/scummvm/scummvm/blob/v2.7.0/engines/sci/video/robot_decoder.cpp#L374>), the 11.RBT file indeed starts with unexpected content:
$ hexdump -C ROBOTS/11.RBT | head -n 1 00000000 3d 00 53 4f 4c 00 04 00 00 00 00 00 2c 01 38 01 |=.SOL.......,.8.| $ hexdump -C ROBOTS/12.RBT | head -n 1 00000000 16 00 53 4f 4c 00 04 00 ad 08 00 00 2c 01 91 00 |..SOL.......,...|
MD5 sums are the following ones:
MD5(ROBOTS/11.RBT)= 9274e1023eb27ffd00b3bf47bf0bb45e MD5(ROBOTS/12.RBT)= 201278d821ee17c0e8cac7f88dfc5380
and they're identical between the provided demo and the one from my old CD.
I only own the demo, not the full game, so I don't know how the full game behaves in that way.
Change History (5)
comment:1 by , 20 months ago
comment:2 by , 20 months ago
That TODO is from csnover's original "Implement kRobot" commit in 2017 and he wrote all the Robot code, so he's probably the only one who knew about this: 0f2748b15a630f9d12ff0511d4e4cde79b8e915f
Can you update the spreadsheet? I would be surprised if this gets addressed anytime soon. (I don't know who would do it.)
comment:3 by , 20 months ago
BTW, if anyone ever does want to implement version 4 robot decoding, let me know. I can point in the right direction and provide resources. I suspect that this demo is the only thing affected, or else we would have heard about it by now. It looks like a straightforward task. (I just don't care about pqswat, otherwise I'd do it.)
comment:4 by , 19 months ago
Thank you for looking into this. I don't have access to that spreadsheet myself, but I'll ask for a modification.
I've also submitted a PR so that the ADGF_UNSUPPORTED
flag is also set for this demo, which seems fair at the moment?
https://github.com/scummvm/scummvm/pull/4892
comment:5 by , 19 months ago
Keywords: | kRobot RobotDecoder added |
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Summary: | SCI: Police Quest SWAT - Demo - "Invalid robot file 11.rbt" → SCI: Police Quest SWAT - Demo - Missing version 4 robot decoding |
<https://github.com/scummvm/scummvm/blob/v2.7.0/engines/sci/video/robot_decoder.cpp#L536> has a
// TODO: Version 4 for PQ:SWAT demo?
comment, so maybe the PQ:SWAT demo is meant to be officially unsupported for now, but it's not marked as such, AFAICS.