Also added in depth comments about the currently known variations
Returning the RNG seed is now implemented (although it seems no
games actually use this functionality, it seems to be just script
bugs).
Also remove Torin kRandom workarounds.
I did a full-score playthrough of the game with a warning() on
the workaround condition as m_kiewitz suggested.
The following room numbers were logged:
* room#1: intro logo
* room#21: time rip (intro and ending)
* room#531: time pod time travel
* room#290: astro chicken star background
* room#376: right after astro chicken game over (called only once)
Compression overhead takes up more space than uncompressed files,
plus the uncompressed files it creates are marginally quicker and
easier to debug with external tools.
Hoyle5 will spin on kGetTime between 15 and 300 ticks in multiple
game scripts in order to delay execution (for example, after
choosing opponents and clicking "okay"). This causes ScummVM to
be unresponsive and wastes CPU time.
This commit patches the spin subroutines to instead call a kernel
function (kWait) that waits without a spin loop. This kernel
function was removed in SCI2, and has been added back in ScummVM
specifically for Hoyle5, so this patch will not work with the
original interpreter.
In PQ4CD, when leaving the shooting range through the front door,
some transition screen items will be generated that have invalid
dimensions. SSCI simply clips these rectangles to zero.
PQ4CD and several other games contain a hack in two renderer
methods to avoid rendering invalid screen items with zero or
negative-dimension target rects. This prevents PQ4CD from
crashing during the fifth phase of target practice.
Failing to reduce the size of the ScreenItem arrays causes other
parts of the decoder (like RobotDecoder::getFrameSize) to try
reading ScreenItems that were already destroyed and nulled out in
the list. (In SSCI, the screen item count was held in a separate
property instead of being part of the screen item list.)
The original interpreter created subdirectories for each in-game
profile, but copying this behaviour would add a lot of
superfluous complexity to the save game system in ScummVM, and
may not be portable to all supported platforms. Instead, when the
game tries to save its files to a subdirectory, the backslash in
the file name is replaced with an underscore so it can be created
successfully on filesystems where backslash is an illegal file
name character.
This has a side-effect of causing all save games to be displayed
under all profiles, instead of just the ones "belonging" to a
particular profile, but this seems like a reasonable trade-off
given that there is no reason to play this game with more than one
profile.
This is most noticeable at the beginning of the game during
benchmarking, where the benchmarking loop used to cause the mouse
to get stuck for the duration of the benchmark.
Willem Jan Palenstijn
Bastien Bouclet
Martin Kiewitz
Colin Snover
Tarek Soliman
D G Turner
Filippos Karapetis