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They're legally unnecessary as far as I know, and kind of annoying to
maintain on a long-term basis.
This was done with the consent of all 3 other contributors, in case
anyone was wondering.
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In the future we can also consider moving to {} instead of {0} for
initialisers, but my old Clang (16) doesn't support this, so it might be
wise to wait longer on that one so people don't need too bleeding-edge
of a compiler just to build this thing.
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Also switch to somewhat proper C23 flags while we're at it.
This is a huge change. It took me forever, in between being really busy.
Sorry about that. But the good news is I'm now free to start integrating
the various patches that have accumulated since last release. Well, at
least in between still being really busy. Gotta manage expectations.
The main benefit of introducing GAMESPECIFIC() is that features
that don't apply to a particular game no longer show up *at all*, and
less time is wasted on init. It also enables a cool optimisation wherein
unnecessary REQUIRE_GAMEDATA() checks can elided at compile time
whenever the gamedata is known up-front to always exist in supported
games.
The DEF_FEAT_CVAR macro family meanwhile makes it easier to manage the
lifecycle of cvars/ccmds, with less manual registering, unhiding and
such.
Originally I was going to try and just hack these features into the
existing codegen abomination, but it just got too terrible. This rewrite
should make it easier to continue tweaking codegen behaviour in future.
It also has slightly better error messages.
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My new programming style is branch hints. All non-confusing branches
must be hinted when I can be bothered. It's faster, sometimes, maybe.
Also, start trying to use more signed sizes in at least some of the
places where it makes sense. Unsigned sizes are surprisingly
error-prone!
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- As much as possible avoid dragging system headers into translation
units. This should avoid namespace pollution and, hopefully, speed up
builds a little bit.
- Avoid leaning on the UCRT so much on Windows - prefer native win32
calls and native file handles except where doing so is inconvenient
(in particular, for stat(), which we might try and replace later).
- Also, switch from SystemFunction036 to ProcessPrng on Windows. This
requires us to generate a stub for bcryptprimitives.dll because
Microsoft haven't bothered to provide a link library, but the function
is better-documented and seems to be a more direct under-the-hood call
as well. Apparently it's what's used by the major web browsers these
days, which seems like a good indication it's stable and trusted.
- Lastly, remove a bunch of functions and macros and stuff that weren't
actually being used. It seems good to try and keep the scope of
OS-dependent stuff relatively contained and only add to it when
actually required.
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Another big one. Here's a list of things:
- Since the upcoming C23 standardises typeof(), use it as an extension
for the time being in order to allow passing arbitrary types as
macro/codegen parameters. It wouldn't have been a big leap to do this
even without standardisation since it's apparently an easy extension
to implement - and also, to be honest, this project is essentially glued
to Clang anyway so who cares.
- Likewise, bool, true and false are becoming pre-defined, so
pre-pre-define them now in order to get the benefit of not having to
remember one header everywhere.
- Really ungodly/amazing vcall macro stuff now allows us to call C++
virtual functions like regular C functions. It's pretty cool!
- Events can now take arbitrary parameters and come in two types:
regular events and predicates.
All this makes the base code even uglier but makes the feature
implementation nicer. In other words, it places more of the cognitive
burden on myself and less on other people who might want to contribute.
This is a good tradeoff, because I'm a genius.
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This is how it should've been to begin with, but I was lazy.
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Idiotic problems require idiotic solutions.
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They're literally always defined thusfar, and it's always possible to
include specific headers for other stuff. So, rather than litter the
source with defines (which might not even work in the likes of os.h if
some other system header already decided to define/include stuff), let's
just define it at the build script level.
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- Just ask the engine for the game directory instead of doing the stupid
argv sniffing hacks from the early days of trying to get the damn
thing working.
- Also add some other path variables, functions and whatnot, and do some
other minor tidying up.
- Also also, another damn copyright year, somebody please help me.
Unfortunate negative effect off this change: con_init() no longer
reports the game name, because it has to happen before gameinfo_init().
I've decided I don't really care, though.
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Sometimes, you just want to Unicode.
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The format string one is cool because it implies the Windows code was
also always wrong but the Windows headers aren't annotated for Clang so
I guess that means it doesn't warn. At least for the nonstandard Windows
wide character versions of things. Cool!
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Important note: it doesn't WORK on Linux, and there's tons of warnings
and stuff, but it's easier to work on when all the compiler output and
whatnot is there.
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With code from Bill. Thanks Bill!
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Michael Smith
