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https://github.com/TerryCavanagh/VVVVVV.git
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Some people might be confused by the reference to M&P in the instructions referring to downloading data.zip (#1026). data.zip is the same between M&P and full versions of the game and is orthogonal to which version of the game is built. Building M&P just requires uncommenting `#define MAKEANDPLAY` in `MakeAndPlay.h`. So clarify that you can grab data.zip from your existing copy of the game, or from the Make and Play _page_ (not necessarily the Make and Play edition of the game), and add instructions for building the M&P version. Closes #1027.
96 lines
4.1 KiB
Markdown
96 lines
4.1 KiB
Markdown
How to Build
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------------
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VVVVVV's official desktop versions are built with the following environments:
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- Windows: Visual Studio 2010
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- macOS: Xcode CLT, currently targeting 10.9 SDK
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- GNU/Linux: CentOS 7
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The engine depends solely on [SDL2](https://libsdl.org/) 2.24.0+. All other dependencies
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are statically linked into the engine. The development libraries for Windows can
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be downloaded from SDL's website, Linux developers can find the dev libraries from their
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respective repositories, and macOS developers should compile and install from source.
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(If you're on Ubuntu and your Ubuntu is too old to have this SDL version, then
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[see here](https://github.com/TerryCavanagh/VVVVVV/issues/618#issuecomment-968338212)
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for workarounds.)
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Since VVVVVV 2.4, git submodules are used for the
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[third party libraries](https://github.com/TerryCavanagh/VVVVVV/tree/master/third_party).
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After cloning, run `git submodule update --init` to set all of these up.
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You can also use this command whenever the submodules need to be updated.
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Steamworks support is included and the DLL is loaded dynamically, you do not
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need the SDK headers and there is no special Steam or non-Steam version. The
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current implementation has been tested with Steamworks SDK v1.46.
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To build the Make and Play edition of the game, uncomment `#define MAKEANDPLAY`
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in `MakeAndPlay.h`.
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To generate the projects on Windows:
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```
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# Put your SDL2 folders somewhere nice!
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mkdir flibitBuild
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cd flibitBuild
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cmake -A Win32 -G "Visual Studio 10 2010" .. -DSDL2_INCLUDE_DIRS="C:\SDL2-2.24.0\include" -DSDL2_LIBRARIES="C:\SDL2-2.24.0\lib\x86\SDL2;C:\SDL2-2.24.0\lib\x86\SDL2main"
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```
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Note that on some systems, the `SDL2_LIBRARIES` list on Windows may need
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SDL2/SDL2main to have `.lib` at the end of them. The reason for this
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inconsistency is unknown.
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Also note that if you're using a Visual Studio later than 2010, you will need to
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change the `-G` string accordingly; otherwise you will get a weird cryptic
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error. Refer to the list below:
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- VS 2012: `"Visual Studio 11 2012"`
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- VS 2013: `"Visual Studio 12 2013"`
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- VS 2015: `"Visual Studio 14 2015"`
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- VS 2017: `"Visual Studio 15 2017"`
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- VS 2019: `"Visual Studio 16 2019"`
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- VS 2022: `"Visual Studio 17 2022"`
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To generate everywhere else:
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```
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mkdir flibitBuild
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cd flibitBuild
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cmake ..
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```
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macOS may be fussy about the SDK version. How to fix this is up to the whims of
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however Apple wants to make CMAKE_OSX_SYSROOT annoying to configure and retain
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each time Xcode updates.
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Including data.zip
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------------
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You'll need the data.zip file from VVVVVV to actually run the game! You can grab
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it from your copy of the game, or you can download it for free from the [Make
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and Play](https://thelettervsixtim.es/makeandplay/) page. Put this file next to
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your executable and the game should run.
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This is intended for personal use only - our license doesn't allow you to
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actually distribute this data.zip file with your own forks without getting
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permission from us first. See [LICENSE.md](../LICENSE.md) for more details. (If
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you've got a project in mind that requires distributing this
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file, [get in touch](http://distractionware.com/email/)!)
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A Word About Compiler Quirks
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----------------------------
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_(Note: This section only applies to version 2.2 of the source code, which is
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the initial commit of this repository. Since then, much hard work has been put
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in to fix many undefined behaviors. If you're compiling the latest version of
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the source code, ignore this section.)_
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This engine is _super_ fussy about optimization levels and runtime checks. In
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particular, the Windows version _absolutely positively must_ be compiled in
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Debug mode, with /RTC enabled. If you build in Release mode, or have /RTC
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disabled, the game behaves dramatically different in ways that were never fully
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documented (bizarre softlocks, out-of-bounds issues that don't show up in tools
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like Valgrind, stuff like that). There are lots of things about this old code
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that could be cleaned up, polished, rewritten, and so on, but this is the one
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that will probably bite you the hardest when setting up your own build,
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regardless of platform.
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We hope you'll enjoy messing with the source anyway!
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Love, flibit
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