OK, this is the big one. We still keep using `#include` guards only
where we absolutely need to, but with each header now being valid in
isolation, this can now actually help *minimize* the length of each
translation unit's `#include` list. Turns out that after removing all
the duplicates, we only *actually* need to guard 29 headers across all
5 games.
Part of P0285, funded by [Anonymous] and iruleatgames.
With the upcoming `#include` cleanup, it finally makes sense to split
off all graphics-related code into its own header. In turn, it makes
more sense to store all of these future master.lib headers in, well,
the master.lib directory, which provides a new 8 characters for their
file names. Turns out that the rationale I gave for the root directory
placement in 8266bbd didn't hold up 3½ years later…
(Also, the `pc98.h` declarations will eventually be split into
`game/coords.hpp` and something in `platform/x86real/pc98/`.)
Part of P0284, funded by [Anonymous] and Blue Bolt.
I might change this convention again in the future, particularly once
someone wants to fund C89 conformance, but let's stay consistent for
now.
Part of P0264, funded by [Anonymous] and Blue Bolt.
I could have equally argued the opposite way, and in favor of `sgm` and
`ofs`, but I've also been using `seg` and `off` more prevalently
throughout the years.
Part of P0245, funded by [Anonymous], Blue Bolt, Ember2528, and Yanga.
Getting us completely macro-free there… even though it did require a
separate version of those functions if the ID is a pointer.
Part of P0134, funded by [Anonymous].
Adding op/, main/, and end/ directories does nicely cover a great
majority of the "not really further classifiable slices" implied in
d56bd45.
Part of P0086, funded by [Anonymous] and Blue Bolt.
Again, 11 necessary workarounds, vs. forcing byte aligment in at least
18 places, and that number would have significantly grown in the
future.
Part of P0085, funded by -Tom-.
And of course, TH05 ruins the consistency once again. Sure, the added
file error handling is nice, but we also have changes in the playful
messages (lol), and now need a third distinct optimization barrier
(🤦)… But as it turns out, inlined calls to empty functions work as
well. They also seem closer to what ZUN might have actually written
there, given that their function body could have been removed by the
preprocessor, similar to the logging functions in the Windows Touhou
games. (With the difference that the latter infamously *aren't*
inlined…)
Part of P0077, funded by Splashman and -Tom-.
Huh, C++ wants its `char`s to be unsigned in order to *not* sign-extend
them to 16 bits for comparison against ASCII literals?!
Anyway, that completes TH03's ZUN.COM, with bascially no new C code.
Part of P0077, funded by Splashman and -Tom-.
nmlgc