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1596 commits

Author SHA1 Message Date
Misa
d965a11988 Don't restart music in trinket cutscenes
When you pick up a trinket in the wild, the music will fade back in
afterwards. However, the special trinket cutscenes (where Victoria or
Vitellary will directly give you a trinket) are inconsistent with this,
and restart the music instead of fading it back in.

Looking at the scripts themselves, it immediately becomes obvious the
reason for this inconsistency - 2.2 and previous didn't implement the
musicfadein command, so it couldn't be used, and Terry or Simon simply
had to make do with simply restarting the music. However, 2.3 implements
musicfadein, so we can simply swap it out and remove the
trinketscriptmusic command.
2021-04-12 16:17:31 -04:00
Misa
711b36c9c8 Set currentsong to -1 when halting music
This is 2.2 behavior, which I forgot to keep. Otherwise, if music has
halted and you try to play the same track, it simply won't work, because
the current song is the same as the song you're trying to play. This is
what happened with the trinket scripts - the game halted music, then
tried to play the same track.

Fixes #712.
2021-04-12 16:17:31 -04:00
Dav999-v
dbd9a114b6 Change mode in Windows-only mkdir to 0777
It's not really used because CreateDirectory doesn't support setting
chmod values, but it does clarify intent of the argument.

Co-authored-by: Ethan Lee <flibitijibibo@gmail.com>
2021-04-12 13:25:27 -04:00
Dav999-v
274ae98915 Re-fix handling filepaths with non-ASCII characters on Windows
In #52 I fixed VVVVVV not being able to handle filepaths with non-ASCII
characters on Windows. 2f0a0bce4c and
aa5c2d9dc2 reintroduce this problem,
however, by reverting the definition of mkdir to how it was before the
fix and using the non-Unicode version of CreateDirectory. And I can
confirm that VVVVVV indeed doesn't make its folder anymore with a
Windows username of "тест". This commit fixes that issue.
2021-04-12 13:25:27 -04:00
Misa
e8316c7e9a Implement music and sound volume sliders
This adds music and volume sliders to the audio options. To use the
sliders, you navigate to the given option, then press ACTION, and your
selection will be transferred to the slider. Pressing left or right will
move the slider accordingly. Then you can press ACTION to confirm the
volume is what you want and deselect it, or you can press Esc to cancel
the volume change, and it will revert to the previous volume; both
actions will write your settings to disk.

Most of this commit is just adding infrastructure to support having
sliders in menus (without copy-pasting code), which is a totally
completely new user interface that has never been used before in this
game. If we're going to be adding something new, I want to make sure
that it at least is done the RIGHT way.

Closes #706.
2021-04-11 20:56:16 -04:00
Misa
27874e1dc6 Add music and sound volume config options
This adds <musicvolume> and <soundvolume> tags to unlock.vvv and
settings.vvv, so users' volume preferences will be persistent across
game sessions. This does not add the user interface to change them from
in-game; the next commit will do that.
2021-04-11 20:56:16 -04:00
Misa
2a3f17f1f7 Add audio category to options menu
The audio category contains the MMMMMM soundtrack option, as well as
stubs for the soon-to-be-implemented volume slider options.
2021-04-11 20:56:16 -04:00
Misa
5133d58777 Add VVV_fillstring()
This function is simple - it takes a given buffer and its size, fills it
with a certain character, and null-terminates it. It's meant to be used
with freshly-created buffers, so we don't copy-paste code.
2021-04-11 20:56:16 -04:00
Misa
eb9d3582d8 Fix incorrect return code from game options and graphic options
Pressing return in gameplay options would send you back to the pause
menu instead of the general options menu, and pressing return in graphic
options would send you back to the pause menu instead of the general
options menu, too. Additionally, pressing Esc in graphic options would
also send you back to the pause menu instead of the general options
menu.

Like I said before, the menu system is still a bit hardcoded in some
places, and these happened because Terry forgot to update them when he
changed the menus around.

Fixes #711.
2021-04-11 16:58:10 -04:00
Misa
d89ce76577 Fix returning from confirm quit menu putting cursor on options
The in-game menu code is better than it was in 2.2 but still pretty
hardcoded, so to fix this just change each individual case around. This
bug happened because the "options" button was in the place where "quit
to menu" was previously, but Terry forgot to update it when changing all
the options around.
2021-04-11 16:58:10 -04:00
Ethan Lee
aa5c2d9dc2 Move first CreateDirectory to getOSDirectory, avoids redundancy on non-Win32 2021-04-11 11:55:35 -04:00
Ethan Lee
2e630ce06c Forgot a 0... 2021-04-11 11:44:56 -04:00
Ethan Lee
2f0a0bce4c Revert to my old userdata folder creation code.
PhysFS requires a write dir to create a directory, so the first PHYSFS_mkdir
never could have worked. Because of that we need to go back to the old mkdir,
and since we're bringing that back we can reuse it for saves/levels, because we
know it works and we don't have to worry about middlewares ruining anything.
2021-04-11 11:32:29 -04:00
Ethan Lee
aa97a5d6a1 Revert "Only migrate savedata if "saves" was created", need this for levels too
This reverts commit fcb09f85cb.
2021-04-11 11:26:11 -04:00
Ethan Lee
fcb09f85cb
Only migrate savedata if "saves" was created 2021-04-11 11:19:49 -04:00
Misa
bc0b9e1fa0 Fix softlocks from turning off advancetext at wrong time
When a text box in the script system (not the gamestate system) is
displayed onscreen and "- Press ACTION to advance text -" is up, the
game sets pausescript to true, so the script system won't blare past the
text box and keep executing. Then it also sets advancetext to true.
Crucially, these two variables are different, so if you have pausescript
true but advancetext false, then what happens?

Well, you get softlocked. There's no way to continue the script.

How is this possible? Well, you can teleport to the (0,0) teleporter
(the teleporter in the very top-left of the map) and regain control
during the teleporter animation. To do that, in 2.2 and below, you have
to press R at the same time you press Enter on the teleporter, or in 2.3
you can simply press R during the cutscene. Then once you teleport to
the room, it's really precise and a bit difficult (especially if
Viridian is invisible), but you can quickly walk over to the terminal in
that room and press Enter on it.

Then what will happen is the terminal script will run, but the
teleporter gamestate sequence will finish and turn advancetext off in
the middle of it. And then you're softlocked.

To fix this, just add a check so if we're in gamestate 0 and there's a
script running, but we have pausescript on and advancetext off, just
turn pausescript off so the game automatically advances the script.

This softlock was reported by Tzann on the VVVVVV speedrunning Discord.
2021-04-10 21:47:23 -04:00
Misa
fe8df3001e Reset completestop in hardreset
If you manage to get softlocked by being stuck in completestop, the next
thing you'll notice is that quitting to the menu or loading back in will
not reset this.

So you can actually softlock yourself in 2.3 by doing the trinket
cutscene, then quitting to the menu (because 2.3 lets you open the pause
menu during completestop). This is a bug, and should be fixed.
2021-04-10 21:47:23 -04:00
Misa
dd4100f752 Fix softlocks from mistimed trinket text skip
You can skip the "You have found a shiny trinket!" cutscene. The
conditions are that this can only be done in the main game, in the main
dimension (no Polar Dimension), the checkpoint that you last touched
must not be in the same room as the trinket, and you have to have
skipped the Comms Relay cutscene. To do the skip, you press R on the
exact frame (or previous frame, if input delay is enabled) that Viridian
touches the trinket. Then, the gamestate will be immediately set to 0
(because of the gotoroom) and the cutscene will be skipped.

Speedrunners of the main game, well, run the main game already, the
only trinket in the Polar Dimension is not one you want to do a death
warp at, and they have a habit of automatically skipping over the Comms
Relay cutscene because they press R at the beginning of the run when
Viridian teleports to Welcome Aboard, to warp back to the Ship and so
they can leave rescuing Violet for later.

So someone reported softlocking themselves by doing the trinket text
skip in 2.3. The softlock is because they're stuck in a state where
completestop is true but can't advance to a state that turns it off. How
does this happen? It's because they pressed R too late and interrupted
the gamestate sequence. In 2.2 and previous, if you're in the gamestate
sequence then you can't press R at all, but 2.3 removes this restriction
(on account of aiming to prevent softlocks). So only on the very first
frame can you death warp and interrupt the gamestate sequence before it
happens at all.

Anyways to fix this, just turn completestop off automatically if we're
in gamestate 0 and there's no script running.

This softlock was reported by Euni on the VVVVVV speedrunning Discord.
2021-04-10 21:47:23 -04:00
Vittorio Romeo
082a0c2205 Fix '-Wpedantic' warnings under gcc 10.x 2021-04-10 20:53:01 -04:00
viri
6e1054e362 CONTRIBUTORS.txt: Update contact info 2021-04-09 22:39:33 -04:00
Misa
f96f5703ff Fix level list segfault when upgrading old levelstats.vvv
So some people reported the levels list crashing when they loaded it.
But this wasn't reproducible every time. They didn't provide any
debugging information, so I had to use my backup plan: doing a full
audit of the code path taken for loading the levels list.

And then I found this. It turns out this was because I used a
LOAD_ARRAY_RENAME() macro on an std::vector. You can't do that because
you need to use push_back() to resize a vector, so the macro will end up
indexing into nothing, causing a segfault. However, this code path would
only be taken if you have an old levelstats.vvv, from 2.2 and previous -
which explains why it wasn't 100% reproducible. But now that I know you
need an old levelstats.vvv, this bug happens 100% of the time.

Anyways, to fix this, just ditch the macro and expand it manually, while
replacing the indexing with a proper usage of push_back().
2021-04-09 22:22:05 -04:00
Misa
0f0e218cf6 Use macros to calculate accessibility offset
This means the offset is calculated at compile-time, and we can use a
proper case-switch here instead of an else-if chain.
2021-04-09 17:42:58 -04:00
Misa
b5f1cbb2d1 Clean up unused vars/funcs from eee98b0e07
eee98b0e07 made some functions and
variables unused, which generate compiler warnings. So I've removed
them.
2021-04-09 17:42:58 -04:00
Misa
8e4b904f57 Fix whitespace from eee98b0e07
eee98b0e07 introduced mixed indentation
and one trailing whitespace, which I've cleaned up.
2021-04-09 17:42:58 -04:00
Misa
9e560e31cf Blacklist non-.vvvvvv files in level metadata
While the game does support playing levels with filenames that don't
have the .vvvvvv extension, it doesn't do it well.

Namely, those files can't be loaded or saved into the editor (because a
.vvvvvv always gets tacked on to your input when saving or loading). In
2.3, this gets worse because you can't load a level without a .vvvvvv
extension from command-line playtesting (because a .vvvvvv automatically
gets added) and you can't load per-level custom assets.

The only place where extensionless level files are supported is when
loading level metadata. But this makes it so they no longer work. This
is technically an API break, but it's easily fixed (just add the
.vvvvvv), plus there's nothing to be gained from not having an
extension, plus basically no one ever actually did this in the first
place (as far as I know, I am the only person to have ever done this,
and no one else ever has).
2021-04-09 11:26:59 -04:00
TerryCavanagh
8b1efb4335 Default to 60 FPS mode (fixes #702) 2021-04-09 20:40:22 +10:30
TerryCavanagh
eee98b0e07 Clean up of options menus for v2.3 (fixes #696) 2021-04-09 20:39:12 +10:30
TerryCavanagh
d9d5cbbab2 Changed the wording on "Invincibility" and "Game Speed" accessibility options
I've wanted to do this one for a very long time
2021-04-09 17:53:15 +10:30
Misa
300f1b7919 Switch assets mounting to dedicated directory
This fixes an issue where you would be able to mount things other than
custom assets in per-level custom asset directories and zips.

To be fair, the effects of this issue were fairly limited - about the
only thing I could do with it was to override a user-made quicksave of a
custom level with one of my own. However, since the quicksave check
happens before assets are mounted, if the user didn't have an existing
quicksave then they wouldn't be able load my quicksave. Furthermore,
mounting things like settings.vvv simply doesn't work because assets
only get mounted when the level gets loaded, but the game only reads
from settings.vvv on startup.

Still, this is an issue, and just because it only has one effect doesn't
mean we should single-case patch that one effect only. So what can we
do?

I was thinking that we should (1) mount custom assets in a dedicated
directory, and then from there (2) mount each specific asset directly -
namely, mount the graphics/ and sounds/ folders, and mount the
vvvvvvmusic.vvv and mmmmmm.vvv files. For (1), assets are now mounted at
a (non-existent) location named .vvv-mnt/assets/. However, (2) doesn't
fully work due to how PhysFS works.

What DOES work is being able to mount the graphics/ and sounds/ folders,
but only if the custom assets directory is a directory. And, you
actually have to use the real directory where those graphics/ and
sounds/ folders are located, and not the mounted directory, because
PHYSFS_mount() only accepts real directories. (In which case why bother
mounting the directory in the first place if we have to use real
directories anyway?) So already this seems like having different
directory and zip mounting paths, which I don't want...

I tried to unify the directory and zip paths and get around the real
directory limitation. So for mounting each individual asset (i.e.
graphics/, sounds/, but especially vvvvvvmusic.vvv and mmmmmm.vvv), I
tried doing PHYSFS_openRead() followed by PHYSFS_mountHandle() with that
PHYSFS_File, but this simply doesn't work, because PHYSFS_mountHandle()
will always create a PHYSFS_Io object, and pass it to a PhysFS internal
helper function named openDirectory() which will only attempt to treat
it as a directory if the PHYSFS_Io* passed is NULL. Since
PHYSFS_mountHandle() always passes a non-NULL PHYSFS_Io*,
openDirectory() will always treat it like a zip file and never as a
directory - in contrast, PHYSFS_mount() will always pass a NULL
PHYSFS_Io* to openDirectory(), so PHYSFS_mount() is the only function
that works for mounting directories.

(And even if this did work, having to keep the file open (because of the
PHYSFS_openRead()) results in the user being unable to touch the file on
Windows until it gets closed, which I also don't want.)

As for zip files, PHYSFS_mount() works just fine on them, but then we
run into the issue of accessing the individual assets inside it. As
covered above, PHYSFS_mount() only accepts real directories, so we can't
use it to access the assets inside, but then if we do the
PHYSFS_openRead() and PHYSFS_mountHandle() approach,
PHYSFS_mountHandle() will treat the assets inside as zip files instead
of just mounting them normally!

So in short, PhysFS only seems to be able to mount directories and zip
files, and not any loose individual files (like vvvvvvmusic.vvv and
mmmmmm.vvv). Furthermore, directories inside directories works, but
directories inside zip files doesn't (only zip files inside zip files
work).

It seems like our asset paths don't really work well with PhysFS's
design. Currently, graphics/, sounds/, vvvvvvmusic.vvv, and mmmmmm.vvv
all live at the root directory of the VVVVVV folder. But what would work
better is if all of those items were organized into a subfolder, for
example, a folder named assets/. So the previous assets mounting system
before this patch would just have mounted assets/ and be done with it,
and there would be no risk of mounting extraneous files that could do
bad things. However, due to our unorganized asset paths, the previous
system has to mount assets at the root of the VVVVVV folder, which
invites the possibility of those extraneous bad files being mounted.

Well, we can't change the asset paths now, that would be a pretty big
API break (maybe it should be a 2.4 thing). So what can we do?

What I've done is, after mounting the assets at .vvv-mnt/assets/, when
the game loads an asset, it checks if there's an override available
inside .vvv-mnt/assets/, and if so, the game will load that asset
instead of the regular one. This is basically reimplementing what PhysFS
SHOULD be able to do for us, but can't. This fixes the issue of being
able to mount a quicksave for a custom level inside its asset directory.

I should also note, the unorganized asset paths issue also means that
for .zip files (which contain the level file), the level file itself is
also technically mounted at .vvv-mnt/assets/. This is harmless (because
when we load a level file, we never load it as an asset) but it's still
a bit ugly. Changing the asset paths now seems more and more like a good
thing to do...
2021-04-05 16:39:37 -04:00
Misa
798bf9e490 Add filename to mountAssetsFrom() error message
This will clarify which directory, exactly, failed to mount. I know it
gets printed earlier in the mounting process, but it can't hurt to print
it twice, just to be sure. Also this is for consistency.
2021-04-05 16:39:37 -04:00
Misa
ff3cba9cee Replace asset load calls with loadAssetToMemory()
All assets now use FILESYSTEM_loadAssetToMemory() instead of
FILESYSTEM_loadFileToMemory().
2021-04-05 16:39:37 -04:00
Misa
72ae6921ea Add FILESYSTEM_loadAssetToMemory()
This is currently just a wrapper around FILESYSTEM_loadFileToMemory(),
but assets are supposed to use this function instead of the regular one.
2021-04-05 16:39:37 -04:00
Misa
aea5611e5b Remove default argument from loadFileToMemory()
Default function arguments are the devil, and it's better to be more
explicit about what you're passing into the function. Also because we
might become C-only in the future and to help faciliate that, we should
get rid of C++-isms like default function arguments now.
2021-04-05 16:39:37 -04:00
Misa
a11920e1a9 Remove redundant getDirSeparator() calls in init()
PHYSFS_getDirSeparator() already gets called and stored in pathSep at
the top of FILESYSTEM_init(). So clearly, two people worked on this
function and forgot that both pieces of code existed at the same time
(or it was one person independently forgetting both).
2021-04-05 16:39:37 -04:00
Misa
34ec943b5c Remove getDirSeparator() usage from mountAssetsFrom()
PhysFS uses platform-independent notation, so we really don't need to
care about getting the correct dir separator here. Especially since we
don't ever do so anywhere else (e.g. load/saveTiXml2Document()), either.
2021-04-05 16:39:37 -04:00
Misa
d95ba3a8b3 Rename FILESYSTEM_mount() to FILESYSTEM_mountAssetsFrom()
This is to make it clear that this is not a general-purpose mounting
function; it is a helper function for FILESYSTEM_mountAssets()
specifically for treating a directory or file as an assets directory,
and mounting assets from there.
2021-04-05 16:39:37 -04:00
Misa
43692388c0 Use FILESYSTEM_mount() when mounting zips
There's no reason to handle mounting .zip files differently than
mounting a directory... we already mount .data.zip files using
FILESYSTEM_mount(), so why go through the trouble of opening a .zip
manually (which means on Windows the .zip can't be touched for the
duration of playing the custom level), making up a place to mount it at,
and then mount that made-up name, instead of just using
FILESYSTEM_mount()?

Whoever cobbled this asset mounting thing together really didn't fully
understand what they were doing.
2021-04-05 16:39:37 -04:00
Misa
a8a09a207f Properly camel-case FILESYSTEM_[un]mountassets()
They are now camel-cased to be consistent with the rest of the
filesystem functions.
2021-04-05 16:39:37 -04:00
Misa
9c8ecdb0f4 Return early if FILESYSTEM_mountassets() fails
This way, we avoid the unnecessary graphics.reloadresources() call - if
we can't mount assets, why bother reloading resources?

The return type of FILESYSTEM_mount() has been changed from void to bool
to indicate success, accomodating its callers accordingly.
2021-04-05 16:39:37 -04:00
Misa
1e375f9ecf Un-export FILESYSTEM_mount()
This function is never used outside of FileSystemUtils.cpp; there is no
reason to export it.
2021-04-05 16:39:37 -04:00
Ethan Lee
5060b4dfe3 Only do focus fullscreen toggling on X11.
I haven't been able to reproduce this old thing on any setup I have. The patch
from 2013 was originally for X11, and Wayland's fullscreen doesn't allow for
this sort of thing, so let's start scoping this down for eventual removal when
X11 is finally out of our minds forever.
2021-04-05 11:07:32 -04:00
Misa
510ec07021 Re-fix resumemusic/musicfadein once again
So it looks like facb079b35 (PR #316) had
a few issues.

The SDL performance counter doesn't really work that well. Testing
reveals that unfocusing and focusing the game again results in
the resumemusic() script command resuming the track at the wrong time.
Even when not unfocusing the game at all, stopping a track and resuming
it resumes it at the wrong time. (Only disabling the unfocus pause fixes
this.)

Furthermore, there's also the fact that the SDL performance counter
keeps incrementing when the game is paused under GDB. So... yeah.

Instead of dealing with the SDL performance counter, I'm just going to
pause and resume the music directly (so the stopmusic() script command
just pauses the music instead). As a result, we no longer can keep
constantly calling Mix_PauseMusic() or Mix_ResumeMusic() when focused or
unfocused, so I've moved those calls to happen directly when the
relevant SDL events are received (the constant calls were originally in
VCE, and whoever added them (I'm pretty sure it was Leo) was not the
sharpest tool in the shed...).

And we are going to switch over to using our own fade system instead of
the SDL mixer fade system. In fact, we were already using our own fade
system for fadeins after collecting a trinket or a custom level
crewmate, but we were still using the mixer system for the rest. This is
an inconsistency that I am glad to correct, so we're also doing our own
fadeouts now.

There is, however, an issue with the fade system where the length it
goes for is inaccurate, because it's based on a volume-per-frame second
calculation that gets truncated. But that's an issue to fix later - at
least what I'm doing right now makes resumemusic() and musicfadein()
work better than before.
2021-04-02 16:13:54 -04:00
Misa
6d3a73c540 Add pause(), pauseef(), and resumeef() to musicclass
musicclass already had a resume() function for music.

These are just wrappers around the appropriate SDL_mixer functions, to
avoid direct function calls to the mixer API. So if we ever need to do
something with all callers of pausing and resuming in the future, or we
switch to a different audio backend, the work is already done for us.

Also it just looks cleaner to be calling our musicclass function instead
of doing a direct API call to the mixer.
2021-04-02 16:13:54 -04:00
Misa
92b3c0b413 Factor fade amount calculation to separate function
This makes it so to reuse this code, we don't have to copy-paste it.

Additionally, I added a check for the milliseconds being 0, to avoid a
division by zero. Logically and mathematically, if the fade amount is 0
milliseconds, then that means the fade should happen instantly -
however, dividing by zero is undefined (both in math and in C/C++), so
this check needs to be added.
2021-04-02 16:13:54 -04:00
Misa
f6ea05f521 Factor timestep calculation out to Game function
This is so we can grab the game's timestep anywhere else in the codebase
without copy-pasting it.
2021-04-02 16:13:54 -04:00
Misa
f8f6f3b96e Add option to re-enable 1-frame input delay
This is an option for speedrunners whose muscle memory is precisely
trained and used to the 1-frame input delay that existed in 2.2 and
below. It is located in Game Options -> Advanced Options, and is off by
default.

To re-add the 1-frame input delay, we simply move the key.Poll() to the
start of the frame, instead of before an input function gets ran -
undoing what #535 did.

There is a frame ordering-sensitive issue here, where toggling
game.inputdelay at the wrong time could cause double-polling. However,
we only toggle it in an input function, which regardless is always
guaranteed to be ran after key.Poll() (it either happened at the start
of the frame or just before the input function got ran), so this is not
an issue. But, in case we ever need to toggle this variable in the
future, we can just use the defer callbacks system to defer the toggle
to the end of the frame - also added by #535.

Added at the request of Habeechee on the VVVVVV speedrunning Discord
server.
2021-04-02 11:18:32 -04:00
Misa
4b3409e2e8 Remove advancetext check from teleporter prompt logic
This fixes being unable to use teleporters while the "- Press ACTION to
advance text -" prompt is up, which is used to perform credits warp.

In 2.2 and 2.0, this advancetext check was only in gamerender() for
rendering the "- Press ENTER to Teleport -" prompt and didn't affect any
logic. In 2.3, I moved the check (and the rest of the conditional it was
in) to gamelogic() - same as the activity zone prompt conditionals - so
if you gained control while being in a prompt zone, the prompt wouldn't
suddenly appear[1].

As a side effect, this ended up aligning rendering and logic together,
so if you couldn't see the teleporter prompt, you weren't able to
teleport - whereas in 2.2 and 2.0, you could still use the teleporter
even though the prompt wasn't up.

So by removing the advancetext check, you are now able to use the
teleporter again, AND the "- Press ENTER to Teleport -" prompt will also
show up as well.

Habeechee reported this regression on the VVVVVV speedrunning Discord
server.

[1]: f07a8d2143, PR #421
2021-04-02 11:16:42 -04:00
Misa
cd2f5ccde9 Add period to glitchrunner mode description text
This is to be consistent with the other options in the Advanced Options
menu.
2021-04-02 11:15:53 -04:00
Misa
91bc438d79 Fix funcs not being reassigned if delta func is last func in list
One of the solutions to the quit signal unfocus pause regression is to
add a no-op delta func to the unfocused func table. However, this
results in the game being stuck in unfocus pause forever, because when
it reaches the end of a list on a delta func, it won't reassign the
active functions - only when the end of a list is a fixed func will it
do so. A workaround is to then add a no-op fixed func afterwards, but
that's inelegant.

The solution in the end to the quit signal regression is to not bother
with adding a delta func, so the game as of right now actually never has
a delta func at the end of a list, and probably never will - but this is
one piece of technical debt I don't want to leave laying around. In case
we're ever going to put a delta function at the end of a list, I've made
it so that delta functions will now reassign the list of active funcs if
they happen to be at the end of the func list.
2021-04-02 11:15:18 -04:00
Misa
03a0b1feb2 Call VVV_exit() when SDL_QUIT is received
This fixes a regression introduced by #535 where a quit signal (e.g.
Ctrl-C) sent to the window while the game was in unfocus pause wouldn't
close the game.

One problem was that key.quitProgram would only be checked when control
flow switched back to the outer loop in main(), which would only happen
when the loop order state machine switched to a delta function. As the
unfocused func table didn't have any delta functions, this means
key.quitProgram would never be checked.

So a naïve solution to this would just be to add a no-op delta func
entry to the unfocused func table. However, we then run into a separate
issue where a delta function at the end of a func list never reassigns
the active funcs, causing the game to be stuck in the unfocus pause
forever. Active func reassignment only happens after fixed funcs. So
then a naïve solution after that would be to simply add a no-op fixed
func entry after that. And indeed, that would fix the whole issue.

However, I want to do things the right way. And this does not seem like
the right way. Even putting aside the separate last-func-being-delta
issue, it mandates that every func list needs a delta function. Which
seems quite unnecessary to me.

Another solution I considered was copy-pasting the key.quitProgram check
to the inner loops, or adding some sort of signal propagation to
the inner loops - implemented by copy-pasting checks after each loop -
so we didn't need to copy-paste key.quitProgram... but that seems really
messy, too.

So, I realized that we could throw away key.quitProgram, and simply call
VVV_exit() directly when we receive an SDL_QUIT event. This fixes the
issue, this removes an unnecessary middleman variable, and it's pretty
cleanly and simply the right thing to do.
2021-04-02 11:14:24 -04:00