These rooms disabled the control panel to prevent the player from
accessing the game's speed setting. Ego is set to a fixed speed and
the timing of the room scripts depend on that speed.
See: 11ca903f60
This heuristic was originally how all SCI16 speed tests were handled.
It has been gradually replaced with script patches, until all games
were patched in: ea48986006
At the time, I left this in because it had the benefit of speeding up
the SCI11 test variants so that they didn't produce a startup delay.
Now we know that this heuristic has been identifying regular rooms as
speed tests and unthrottling them too, causing unintended effects.
Some of this behavior was masked by fast-cast throttling occurring
everywhere, until: e09010f7d8
For example, the QFG1VGA Sierra logo animation changes speed and runs
very fast as soon as the sparkle is finished. The Longbow map rooms
were also detected as speed test rooms and animated too fast. Cast-less
rooms like LB2's title screen run unthrottled and consume CPU.
There are only a few SCI11 speed test rooms, so now they're explicitly
unthrottled in kGameIsRestarting with the other throttling exceptions.
Speed throttling was disabled on LONGBOW maps because they were treated
as speed tests by the heuristic in GfxAnimate::throttleSpeed. This bug
was masked by fast-cast throttling being applied everywhere, but that
was changed in e09010f7d8
Now the map rooms trigger throttling so that they don't run too fast.
But the game scripts also attempt to throttle the animations based on
speed test results, causing them to run too slow, so that's patched out.
Fixes bug #13966
Recent fixes to the sound fading code have exposed this bug again.
It was first fixed 12 years ago, and then again 10 years ago.
Both times, the bug was fixed by changing kDoSoundFade behavior.
But those changes added behavior that was different from SSCI, and
those differences caused problems in LB2. kDoSoundFade is now
accurate, and so the bug has returned, but it was never a sound bug.
The black widow lockup is due to a script bug that accidentally relies
on undefined values from non-existent parameters. ScummVM produces
different undefined values than SSCI in certain situations, and this
is one of them. The undefined values are then passed to kDoSoundFade
as real values in a correct kernel call.
Now this is fixed with a script patch that removes all five broken
Sound:fade calls. They were redundant because they attempted to fade in
to the same volume they had just set.
Perhaps we can replicate SSCI's undefined behavior someday, but in
the meantime this bug is fixed.
Fixes bugs #5625#5653#6120#6210#6252#13944
This is a follow-up to the script patches for the dead-end event
bugs in the Laibon's hut: 6e743a97ef
Those patches had the unintended side effect of allowing two dialogue
options during an event where they shouldn't be available. Now their
logic is updated to match the other patches so that they only appear
during their intended event.
Fixes bug #13748
- Skate-O-Rama (CD version) can now be completed at all game speeds.
- Removed the extra speed throttling on Skate-O-Rama. Floppy doesn't
have the timing bugs and now both versions run at normal speeds.
- Fixed the coordinate bug that made the west exit impossible at
certain game speeds.
Bugs #5514 and #11038
Disables SCI16 speed tests with generic script patches.
- All games now pass their speed tests, and consistently.
- Handles games/versions that the benchmarking heuristic misses.
- Fixes bug #13529 (speed test overflow on fast CPUs) on all games.
- Replaces most game-specific patches.
I've left the benchmarking heuristic so that any game or version that
still needs patching will still be handled with unthrottling.
sluicebox
UrQuan1
Hubert Maier