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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. |
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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
- Created by Terry Cavanagh
- Room Names by Bennett Foddy
- Music by Magnus Pålsson
- Metal Soundtrack by FamilyJules
- 2.0 Update (C++ Port) by Simon Roth
- 2.2 Update (SDL2/PhysicsFS/Steamworks port) by Ethan Lee
- Beta Testing by Sam Kaplan and Pauli Kohberger
- Ending Picture by Pauli Kohberger
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).