Set up windows build

[v1993]

Is your feature request related to a problem? Please describe.
Major amount of Cubosphere enthusiasts use Windows as their platform. Since there is no way we can force them to move to Linux, Windows build becomes a must.

Describe the solution you'd like
I'm mostly considering using cross-compilation since that seems much easier than making build task run on Windows.

Describe alternatives you've considered
Moving all people to Linux? But it is not remotely plausible.

Additional context
There was some work on Windows build, but I really dislike it since it was pretty much cargo-culted from another unrelated project. It also suggests to use their dependencies archive, which is a terrible idea in many ways.

[qwertychouskie]

Just a quick point of clarification, although the archive has the same structure is STK's deps archive, the contents are different (I built it from the ground up with the libs that Cubosphere links to). Using the deps folders at #32 (comment), it should definitely compile with the following commands:

mkdir build && cd build

cmake .. -DCMAKE_TOOLCHAIN_FILE=../cmake/Toolchain-mingw.cmake [For a 32-bit build, or:]
cmake .. -DCMAKE_TOOLCHAIN_FILE=../cmake/Toolchain-mingw-64bit.cmake [For a 64 bit build]

make -j8

But the build will crash at startup (tested with both Wine and real Windows). I was never able to get past the crash, so I can't say for sure what causes it, but passing pointers directly to the Lua scripts, and therefore truncating them, probably isn't helping.

[SusDTSteve]

blablabla, but maybe re-write all of the Lua scripts and see what happens there.

[v1993]

@SusDTSteve That would take a LOT of work to say the least. Likely more than it takes to rewrite cubosphere entirely because of horrible legacy code and you'll end up with worse results this way for same reason.

@qwertychouskie Lua have lightuserdata type exactly for storing pointers in Lua. If you're going to look into this, finding and using lightuserdata in all places where pointers are passes to/from Lua have a decent chance of fixing things.

[SusDTSteve]

I just imagined how many months that would take. Anyways, if any of you still have a windows build, try to create a log that tells you exactly what happens where.