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Misa 5e557ffd1a Fix regression with playing the same track after it fades out 
With commit 48313169b6 (PR #453),
AllyTally added a single-case patch for a regression, instead of fixing
it at its root cause.

In fact, that commit only fixes the music if Presenting VVVVVV is
playing while exiting to the menu, not if you enter a level that plays
Presenting VVVVVV - so it only fixes it going one way, and not going the
other way around; neither fixing also all the other cases this could
happen.

It doesn't, say, fix the case where you are exited to the menu
automatically after collecting the last crewmate in the level (or if the
level calls gamestate 1013 itself), which is what happens in my MIRA-VIU
TAS video at the end, and which I noted in the description of that video
( https://www.youtube.com/watch?v=OYQO4ePbYW4&t=111 ).

So, the problem here is that when musicclass::play() is called, it sees
that currentsong is the same as its input, and decides that since the
music is already playing, it shouldn't play the music again. Thus, the
music fades out, and we get silence instead of the music playing again.

But I said this was a regression. Why didn't this happen in 2.2? Well,
it's because of the fact that 2.2 sets currentsong to -1 (no music
playing at all) immediately when starting a fadeout, and not when the
fadeout completes (commit facb079b35,
PR #316). As you can imagine, this discrepancy could lead to bugs, given
that the game would think that music wasn't playing when in actuality it
was, but fixing this bug could also break code that expected this wrong
behavior. And in this case, it has.

So to properly fix the root cause of this, instead of naïvely
single-case patching out every case that comes up randomly, in
musicclass::play(), the function will now ignore if the input given is
the same as currentsong if the music is currently fading out.
 		2021-01-04 19:16:35 -05:00
.github Add official, M&P, no custom levels, and no editor builds to CI 2020-12-27 11:18:54 -05:00
desktop_version Fix regression with playing the same track after it fades out 2021-01-04 19:16:35 -05:00
mobile_version Fix 1x1 quicksand collision optimization not working 2020-05-13 08:16:34 -04:00
third_party Remove TinyXML-1 2020-06-12 15:08:29 -04:00
tools Adding original mapping tools for the sake of completeness 2020-01-12 19:49:24 +01:00
.gitattributes fix actionscript misclassified as angelscript 2020-01-12 15:18:45 -05:00
LICENSE.md Updated link to Make and Play edition 2020-01-13 19:37:50 +01:00
License exceptions.md Update License exceptions.md 2020-11-23 16:33:54 +10:30
README.md Update README.md 2020-01-10 17:45:29 +01:00

README.md

This is the source code to VVVVVV, version 2.0+. For more context about this release, see the announcement on Terry's blog!

License

VVVVVV's source code is made available under a custom license. See LICENSE.md for more details.

In general, if you're interested in creating something that falls outside the license terms, get in touch with Terry and we'll talk about it!

Authors

Versions

There are two versions of the VVVVVV source code available - the desktop version (based on the C++ port, and currently live on Steam), and the mobile version (based on a fork of the original flash source code, and currently live on iOS and Android).