Opened 10 months ago

Last modified 7 days ago

#11210 new defect

AGI: Mixed-Up Mother Goose (AppleIIgs) - possible issue with MUMG and other AGI games

Reported by: Maxor127 Owned by:
Priority: low Component: Engine: AGI
Keywords: IIgs Cc:
Game: Mixed-Up Mother Goose


I played through the IIgs version of Mixed-Up Mother Goose, and I noticed sometimes the music cuts off during some of the nursery rhyme sequences. I then realized the music seemed to stop when a sound effect played during the sequence as if the sound effect was causing the music to cut out. And sometimes the nursery rhyme text seemed to freeze without finishing the rhyme. Both the music and text issues can be observed after returning the pail to Jack and Jill.

I then tried it in a IIgs emulator, and I noticed the sequence seemed to play without those issues, but if I increased the emulation speed, I had the same issues as ScummVM. So I'm guessing it's some sort of speed or timing issue and the sequence is playing faster than it should, but I could be completely wrong.

For what its worth, I tried the DOS AGI version, and the same sequence seems to play fine. When I set the in-game speed to "fastest," the nursery rhyme sequence slowed down to "normal" speed.

I suspect other IIgs games are affected with speed issues too. I think it's more noticeable in Mixed-Up Mother Goose because it seems to have more cutscenes than other AGI games.

The IIgs Sierra characters do seem to move faster in ScummVM compared to "normal" IIgs speed, but I actually like the faster speed. Original IIgs speed always felt a bit too slow and stuttery.

I've experienced the issue as of ScummVM 2.1.0.

Attachments (1)

mixedup-2gs.001 (6.0 KB ) - added by Maxor127 9 days ago.

Download all attachments as: .zip

Change History (8)

comment:1 by digitall, 10 months ago

Component: --Unset--Engine: AGI
Game: Mixed-Up Mother Goose

comment:2 by ZvikaZ, 7 weeks ago

Can you supply a save game?

comment:3 by raziel-, 3 weeks ago

Summary: possible issue with Mixed-Up Mother Goose IIgs and other AGI gamesAGI: Mixed-Up Mother Goose (AppleIIgs) - possible issue with MUMG and other AGI games

by Maxor127, 9 days ago

Attachment: mixedup-2gs.001 added

comment:4 by Maxor127, 9 days ago

I've attached a save game file right before delivering the pail to Jack and Jill. Just walk close to them to see the cutscene.

comment:5 by ZvikaZ, 7 days ago

When you play the game in an emulator (with regular speed), what exactly the behaviour is?
Does the rhyme and the sound effect play together, and the rhyme music continues after the sound effect ended?
Maybe the sound effect is played only after the rhyme music has finished?
Or maybe the music is halted, we hear the sound effect, and then the music continues?
Or something else?
Can you supply a video recording?

Last edited 7 days ago by ZvikaZ (previous) (diff)

comment:6 by ZvikaZ, 7 days ago

Don't bother with video recording.
I think I understand the problem.

From the options I gave above, the correct one is:

Maybe the sound effect is played only after the rhyme music has finished?

If not, please answer my question from the previous post :-)

comment:7 by ZvikaZ, 7 days ago

I've prepared a possible fix (if I understand the problem correctly ;-) )
Can you check it?

git clone
git checkout z_temp

and compile.

Or, if you prefer, I can upload a .exe file.

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