Once we decompile whatever can be decompiled of those, we're going to
use the same coordinate constants for both these and the backdrop
image. Ideally, we can even macro (or inline-function) away the entire
implementation, so that the redundancy between TH04's and TH05's Stage
4 bosses won't matter as much.
Part of P0189, funded by Arandui and Lmocinemod.
These are used from quite a few places, so it seems best to just name
them after the rect on the playfield they leave out, which is then
typically where the background picture goes.
…*except* that in doing this, we quickly run up against the symbol
length limit of 32 characters. TASM can expand it via the /mv option,
but TCC only lets you *reduce* it to even less. (Why?)
So, my initial idea of `playfield_fill_around_(x)_(y)_(w)_(h)` wouldn't
have worked. But those coordinates are kinda important, I'd say…
Well then, let's just go with `fillm` instead of `fill_around` then.
"Fill with mask at the given coordinates"… yeah, that would work.
Part of P0029, funded by zorg.
nmlgc