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It's quite difficult to patch. I hope this finally solved it.
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The game has a feature where it will automatically create a save
game when you quit the game through the in-game control panel (or
when you die, for some reason).
Unfortunately, due to bad programming, this automatic save would
just overwrite whatever was in save slot 1 (slot 0 in the original
interpreter). Find this attempt to auto-save the game and redirect
it to the auto-save slot. This might not be totally correct, but
it is at least better than destroying a save game.
Fixes Trac#10201.
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Adding a hook into kPlayDuck to skip the intro video feels kind of
crappy, but it seemed simpler, consistent with the other hooks for
launch loading, and therefore preferable versus hot-patching the
script or messing with PC in the VM or something.
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In SCI2/2.1, variable indexes are used along with a range encoded
in the interpreter executable to determine whether an object
variable is a view-related variable. Operands to aTop, sTop, ipToa,
dpToa, ipTos, and dpTos are byte offsets into an object, which
are divided by two to get the varindex to check against the
interpreter range.
In SCI3, objects in game scripts contain groups of 32 selectors,
and each group has a flag that says whether or not the selectors
in that group are view-related. Operands to aTop, sTop, ipToa,
dpToa, ipTos, and dpTos are selectors.
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GuestAdditions
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This patch includes enhancements to the ScummVM integration with
SCI engine, with particular focus on SCI32 support.
1. Fixes audio volumes syncing erroneously to ScummVM in games
that modify the audio volume without user action (e.g. SCI1.1
talkies that reduce music volume during speech playback). Now,
volumes will only be synchronised when the user interacts with
the game's audio settings. This mechanism works by looking for
a known volume control object in the stack, and only syncing
when the control object is present. (Ports and planes were
researched and found unreliable.)
2. Fixes audio syncing in SCI32 games that do not set game
volumes through kDoSoundMasterVolume/kDoAudioVolume, like GK1,
GK2, Phant1, and Torin.
3. Fixes speech/subtitles syncing in SCI32 games that do not use
global 90, like LSL6hires.
4. Fixes in-game volume controls in SCI32 games reflecting
outdated audio volumes when a change is made during the game
from the ScummVM launcher.
5. Fixes SCI32 games that would restore volumes from save games
or reset volumes on startup, which caused game volumes to be
out-of-sync with ScummVM when started.
6. ScummVM integration code for audio sync has been abstracted
into a new GuestAdditions class. This keeps the ScummVM-
specific code all in one place, with only small hooks into the
engine code. ScummVM integrated save/load code should probably
also go here in the future.
Fixes Trac#9700.
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Used by at least Phantasmagoria 2.
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updateInfoFlagViewVisible accepts a property index, not a selector
ID.
Fixes Trac#9583.
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Fixes restoring saved games, when ScummVM dialogs are patched in
Removing clearing planes+screen items as well, because the scripts
actually did that, but did not clear everything.
Fixes "Invalid screen item" message when entering options menu,
after restoring in SQ6.
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This at least prevents SQ6 from crashing when going into the
introduction
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Fixes the inventory in GK1
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This tries to make our code a bit more compliant with our code formatting
conventions. For future use, this is the command I used:
git ls-files "*.cpp" "*.h" | xargs sed -i -e 's/[ \t]*$//'
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svn-id: r54037
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now also checking -info- selector, if object is supposed to get freed. Fixes kq4 early hanging (in intro, when opening door, etc.)
svn-id: r52508
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now lists import files of all possible games, adds game title before that, removes game prefixes for all files
svn-id: r52441
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svn-id: r52349
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fixing hoyle 4 detection entry (not a demo)
adding direct selector fix, maybe we should replace this later with a script patch
adding detailed comment about the issue
svn-id: r51753
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svn-id: r51251
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svn-id: r51134
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svn-id: r51076
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still shaking while gotten stopped due ego
svn-id: r50931
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- Added support for the LSL2 menu bar object
- We no longer need a reference to the init() selector - it's always the first method of the menu bar object
svn-id: r50462
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This is now done on startup. This should fix loading from the launcher for LSL6
svn-id: r50406
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fixed some header dependencies in the process
svn-id: r50183
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as selectors
svn-id: r50180
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svn-id: r50179
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error pops up from these ones, please add the game where it occurred and the steps to reproduce the error before turning it into a warning
svn-id: r49973
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svn-id: r49573
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kludge. Also, removed the selectorInvocation parameter - if invokeSelector() fails, the error is in most cases unrecoverable, and the error description thrown covers all cases where kContinueOnInvalidSelector was used. This uncovered a bug too: in some places, non reg_t parameters were parsed
svn-id: r49564
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kSetCursor() kernel function semantics
svn-id: r49408
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were just cloaking functions with a different name
- GET_SEL32 -> readSelector
- GET_SEL32V -> readSelectorValue
- PUT_SEL32 -> writeSelector
- PUT_SEL32V -> writeSelectorValue
Also, changed some selector-related function names and variables to CamelCase
svn-id: r49317
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