This change simplifies the AGI engine volume handling by using the music
and sound fx volumes set in the ScummVM GUI as the maximum levels which
can be set by the scripts. This avoids the complexity of synchronising
changes between these and the scripts (which only had a single 16 step
volume range which is inverted in meaning by quite a large number of
fangames).
This still allows the game scripts to adjust the volumes, but only within
the maximum range set in the Launcher / GMM.
This avoids issues such as https://bugs.scummvm.org/ticket/10732 where
users complained about extremely loud output in some cases.
We have lots and lots of -Wimplicit-fallthrough warnings, and I
don't know if it's worth fixing them or not. But if we want to,
this is how it can be done.
Original AGI TIME_DELAY 0 made the game run as fast
as possible. We didn't go that far, but it still seems to run
too fast. This should hopefully fix that.
See bug #9607
Plenty of fan games set volume to mute, because they thought 15
would be loudest. It's in fact "mute" in AGI. Those games were
made primarily for PC AGI, which did not use the volume setting.
We do, so such games would get muted audio. We try to detect
such games. Hopefully fully fixes bug #7035.
Too many games to try them all out.
Instead of directly converting play time to VM timer vars,
we only adjust VM timer vars according to play time seconds delta.
This is needed for at least Mixed Up Mother Goose. The game
sets the VM "second" variable to 0 and then uses it for syncing
the text to the songs. We even adjust second calculation, so
that the timing should always be the same and not depend on
basically luck (seconds may wrap right after setting it, because
internal cycles counter is not changed).
And in that case poll events, delay for a few milliseconds and
update screen.
This somewhat worked before the graphics rewrite because of
a timer hack.
This one tries to detect actual inner loops.
Happens in at least Police Quest 1 when playing poker.
This mostly enforces tabs for indentation and spaces for formatting. But also
fixes spaces on empty lines, some extra/missing spaces.
astyle + manual fixup
Original code did assume that AGI volume level is 0-15
(0 for silence, 15 for maximum volume). It actually is the
other way. 0 is maximum, 15 is silence.
Fixed that. Also implemented sync with ScummVM settings dialog.
In case "mute" is enabled by the user, any volume changes done by
scripts are ignored.
Fixes Manhunter 1 Apple IIgs not getting sound anymore since the
VM Var cleanup (the script volume change by the scripts didn't
reach us before)
in game timer is now updated, when scripts read in game timer
VM variables and during main loop. ScummVM total play time feature
is used for it. Game cycle syncing is done at the same time.
renamed getflag() to getFlag()
renamed setflag() to setFlag()
renamed flipflag() to flipFlag()
preagi: renamed setFlag for this engine to setWinnieFlag
- graphics code fully rewritten
- Apple IIgs font support
- Amiga Topaz support
- Word parser rewritten
- menu code rewritten
- removed forced 2 second delay on all room changes
replaced with heuristic to detect situations, where it's required
- lots of naming cleanup
- new console commands show_map, screenobj, vmvars and vmflags
- all sorts of hacks/workarounds removed
- added SCI wait mouse cursor
- added Apple IIgs mouse cursor
- added Atari ST mouse cursor
- added Amiga/Apple IIgs transition
- added Atari ST transition
- user can select another render mode and
use Apple IIgs palette + transition for PC versions
- inventory screen rewritten
- SetSimple command now properly implemented
- PreAGI Mickey: Sierra logo now shown
- saved games: now saving controller key mapping
also saving automatic save data (SetSimple command)
- fixed invalid memory access when saving games (31 bytes were saved
using Common::String c_ptr()
Special Thanks to:
- fuzzie for helping out with the Apple IIgs font + valgrind
- eriktorbjorn for helping out with valgrind
- LordHoto for figuring out the code, that caused invalid memory
access in the original code, when saving a game
- sev for help out with reversing the Amiga transition
currently missing:
- mouse support for menu
- mouse support for system dialogs
- predictive dialog support
Eugene Sandulenko
D G Turner
Zvika Haramaty
Henrik "Henke37" Andersson
Torbjörn Andersson
Martin Kiewitz
Ori Avtalion
Johannes Schickel
strangerke
Nicola Mettifogo
Filippos Karapetis
Max Horn
Paweł Kołodziejski