That was the one piece of technical debt in TH01 we've been carrying
around since March 2015! (0fd7f14)
Part of P0211, funded by Lmocinemod and Arandui.
And that's it! All TH01 bosses fully decompiled, which makes 8 PC-98
Touhou bosses in total with 23 to go! And now, time to move a whole lot
of other data…
Completes P0210, funded by Arandui and Yanga.
Where ZUN manages to sneak in an integer overflow that, whether
intended or not, ends up defining the on-screen 邪 color in every phase
starting from the 6th one. What a great final piece of TH01 boss code…
Completes of P0210, funded by Arandui and Yanga.
But of course, we still have to name this one, because ZUN just had to
put its definition after the main function. Speaking of which though,
now it's time for the big one…
Completes P0208, funded by GhostPhanom and Yanga.
The one where the lateral eyes fire aimed 2-spread pellets with
increasing speeds at various intervals, ending with a single aimed
pellet.
Part of P0208, funded by GhostPhanom and Yanga.
Fun fact: The laser from the rightmost eye has a hitbox that's 24
pixels larger than the other ones…
But yeah, nothing that resembles the pattern functions from the other
fights in this one, and even the functions that sort of do leave their
cleanup to the big main function. No sense in numbering them this time.
Part of P0208, funded by GhostPhanom and Yanga.
Turns out that we can define the magic numbers used in the pentagram
shrink effect in terms of the distances between the eyes and the
pentagram's target position in the center of the playfield. Therefore,
specifying the eye positions in raw pixel coordinates won't give the
full picture (who would have thought).
Part of P0208, funded by GhostPhanom and Yanga.
They really are no different from regular pellet motion until they
reach the top of the playfield. Also, part 2 of 5a8bbd2.
Part of P0207, funded by GhostPhanom.
Nooooo, the static initialization code proves that `boss_entities`
couldn't have been an array in ZUN's code! 😢 Which in turn explains
why YuugenMagan's and Elis' code looks the way it does. We could go
into undefined behavior territory and just cast `boss_entity_0` to a
pointer, but let's better not annoy future port authors just for my
personal convenience. In turn, we need to get a bit clever with some of
Elis' code to replace the now wholly redundant `elis_entity_t` type,
but it's not all too bad.
Part of P0207, funded by GhostPhanom.
You don't get the full picture of YuugenMagan's rendering calls
otherwise.
It's also really stupid in how it trades performance for flickering.
Part of P0207, funded by GhostPhanom.
• Comments that describe all lines of code until a blank one are placed
into the lines immediately above
• Comments that describe an entire demarcated block are placed
immediately below the dash row at the top
• In any case, there should be a blank line after the top comment of
a demarcated block, to keep IntelliSense-style systems from applying
the block comment to the first actual line of code…
• …but there shouldn't be one before the dash row at the bottom, where
it'd be redundant.
Part of P0207, funded by GhostPhanom.
Yup, if it weren't for that one boss function periodically resetting
the palette to the other global one, this discoloration would be
permanent.
Completes P0206, funded by Yanga and [Anonymous].
The source: The boss invincibility flash effect, which ends up
unconditionally resetting the palette periodically. But wait, could
that maybe…?
Part of P0206, funded by Yanga and [Anonymous].
The one where ZUN finally uses the corner points for the current frame
as the spawn point for Mima's aimed lasers. 60 functions remaining in
TH01!
Part of P0206, funded by Yanga and [Anonymous].
The one where Mima sprays slow pellets from the corner points of the
rotating square around her from 8 frames ago, aimed in a half-circle
motion from her left to her right side and back.
Part of P0206, funded by Yanga and [Anonymous].
The one where Mima fires missiles from the corner points of the
rotating square around her from 8 frames ago, aimed along a static
downwards half-circle from her right to her left side, with 16 frames
between the individual missile groups.
Part of P0206, funded by Yanga and [Anonymous].
The one where Mima spawns 8 flame pillars, 20 frames apart, at very
specifically calculated random positions, followed by an aimed 3-spread
after each pillar has reached its maximum height.
Part of P0206, funded by Yanga and [Anonymous].
The one where Mima hops over ⅕ of the playfield 4 times in a row,
starting at either the left or right edge, while darkening the screen…
or not?
Completes P0205, funded by [Anonymous] and Yanga.
The one where Mima takes the final static part from the first pattern,
and replicates it with two squares that rotate in opposite directions.
Also demonstrates the 34th unblitting bug in this game.
Part of P0205, funded by [Anonymous] and Yanga.
The one where Mima spawns missiles from the corner points of the
rotating square around her from 8 frames ago, aimed to Reimu's position
before any missiles were spawned.
Part of P0205, funded by [Anonymous] and Yanga.
The one where Mima spawns aimed and later static pellets from the
corner points of the rotating square around her from 8 frames ago.
Part of P0205, funded by [Anonymous] and Yanga.
nmlgc