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214 Commits

Author SHA1 Message Date
nmlgc a317cb49fc [Maintenance] Fix another bunch of accumulated typos 
Part of P0161, funded by [Anonymous].
 2021-10-09 23:26:02 +02:00
nmlgc b9f1fefb84 [Maintenance] [th01] Remove the last traces of `#pragma option -b` 
Part of P0161, funded by [Anonymous].
 2021-10-09 23:26:01 +02:00
nmlgc 42ba4a5725 [Decompilation] [th01] Particle system 
Only seen in Mima's fight, but initialized for all non-final boss
fights. Also with explicit support for all 8 origin edges, not just the
top-right one used in Mima's fight… and an off-by-one error?!

Completes P0160, funded by Yanga.
 2021-10-09 23:25:59 +02:00
nmlgc b6e07e301a [Decompilation] [th01] HUD: Background snapping and initial rendering 
Part of P0160, funded by Yanga.
 2021-10-09 23:23:46 +02:00
nmlgc c1ae914b99 [Decompilation] [th01] Stage timer: Initial values 
Hardcoded for every one of the 35 stages.

Part of P0160, funded by Yanga.
 2021-10-09 23:20:04 +02:00
nmlgc 6c98e473cc [Decompilation] [th01] Stage timer: Background snapping and initial rendering 
Part of P0160, funded by Yanga.
 2021-10-09 23:20:04 +02:00
nmlgc afd5707561 [Decompilation] [th01] Stage timer: Tick, extend, and render functions 
Oh hey, another HUD element that is needlessly (and slowly) drawn to
VRAM. The custom boldfaced font would have been a perfect fit for
gaiji… well, OK, halfwidth gaiji weren't exactly well documented back
then.

Part of P0160, funded by Yanga.
 2021-10-09 23:20:04 +02:00
nmlgc a2c06fbd2b [Maintenance] [th01] HUD: Rename *_initial() to *_bg_snap_and_put() 
After all, these are called again during all of Sariel's background
changes, not really just when starting a scene or boss battle.

Part of P0160, funded by Yanga.
 2021-10-09 23:20:04 +02:00
nmlgc ea0997ab38 [Decompilation] [th01] Pellet speed modification 
Category: Function comment spells out entire function code because its
effects are impossible to summarize

Part of P0160, funded by Yanga.
 2021-10-09 23:20:02 +02:00
nmlgc e491cd7b03 [Decompilation] [th01] Stage objects: Card update and rendering 
Including firing the revenge pellets on Lunatic. And that's all
non-boilerplate card code done as well!

Completes P0159, funded by Yanga.
 2021-09-28 18:05:25 +02:00
nmlgc 36068acb02 [Decompilation] [th01] Stage objects: Card score popup rendering 
Part of P0159, funded by Yanga.
 2021-09-28 18:05:25 +02:00
nmlgc 4c500599a9 [Decompilation] [th01] Stage objects: Card/Orb collision handling 
An X/Y point structure, in my TH01? And another actually logical
hitbox? (Rest of the code's still bad, though.)

Part of P0159, funded by Yanga.
 2021-09-28 18:05:25 +02:00
nmlgc 4b0b092a26 [Reverse-engineering] [th01] Stage clear flag 
Part of P0159, funded by Yanga.
 2021-09-28 18:05:25 +02:00
nmlgc e3c36d0151 [Reverse-engineering] [th01] Bombs: Animation frame 
Part of P0159, funded by Yanga.
 2021-09-28 18:05:25 +02:00
nmlgc 53c5c5b3aa [Maintenance] [th01] Add an enum for the cels in the card flip animation 
Part of P0159, funded by Yanga.
 2021-09-28 18:05:25 +02:00
nmlgc 0d497452ef [Maintenance] [th01] Use a single header file for bomb declarations 
Part of P0159, funded by Yanga.
 2021-09-28 18:05:25 +02:00
nmlgc 31d7f166b9 [Maintenance] Force the difficulty level enum to `int` 
That should finally get it right, with no more casts anywhere.

Part of P0159, funded by Yanga.
 2021-09-28 18:05:25 +02:00
nmlgc 990b598292 [Decompilation] [th01] Point items: Unblit/update/render function 
Items done, in 1¼ pushes… way too long for how simple their code could
actually be.

Part of P0159, funded by Yanga.
 2021-09-28 18:05:25 +02:00
nmlgc ef5225448c [Decompilation] [th01] Point items: Collection and drop callbacks 
Part of P0159, funded by Yanga.
 2021-09-28 18:05:25 +02:00
nmlgc e9950e2399 [Decompilation] [th01] Point items: Reset function 
10 slots are too much for manual inlining, eh? Thankfully.

Part of P0159, funded by Yanga.
 2021-09-28 18:05:25 +02:00
nmlgc 655d366166 [Decompilation] [th01] Point items: Blitting and sloppy unblitting loops 
Part of P0159, funded by Yanga.
 2021-09-28 18:05:25 +02:00
nmlgc 6160a9c93f [Decompilation] [th01] Point items: Collision handling 
Part of P0159, funded by Yanga.
 2021-09-28 18:05:25 +02:00
nmlgc d7430f2bcc [Decompilation] [th01] Point items: Spawn function 
And now, Ctrl-C, Ctrl-V, s/bomb/point/.

Part of P0159, funded by Yanga.
 2021-09-28 18:05:25 +02:00
nmlgc a82725862a [Decompilation] [th01] Bomb items: Unblit/update/render function 
Part of P0159, funded by Yanga.
 2021-09-28 18:05:24 +02:00
nmlgc c0c0ebc3cd [Decompilation] [th01] Bomb items: Collection and drop callbacks 
Second instance of min/max clamping macros being nested into each
other…

Completes P0158, funded by Yanga.
 2021-09-28 18:05:24 +02:00
nmlgc c8f05b8675 [Decompilation] [th01] Items: Generic unblit/update/render function 
So generic that every individual structure member is separately passed
by reference. 🤪 That's one way to practice this aspect of C++, I
guess?

Part of P0158, funded by Yanga.
 2021-09-28 18:05:24 +02:00
nmlgc e993e20da6 [Decompilation] [th01] Bomb items: Reset function 
This actually made me research whether Turbo C++ 4.0J had some obscure
loop unrolling optimization option. But no, ZUN must have done that by
hand…

Part of P0158, funded by Yanga.
 2021-09-28 18:05:24 +02:00
nmlgc 54fc657902 [Decompilation] [th01] Bomb items: Blitting and sloppy unblitting loops 
With the latter being unused, thankfully.

Part of P0158, funded by Yanga.
 2021-09-28 18:05:24 +02:00
nmlgc 318130ab9c [Decompilation] [th01] Bomb items: Collision handling 
That is actually a perfectly logical and symmetrical hitbox, even
though it might not look like it.

Part of P0158, funded by Yanga.
 2021-09-28 18:05:24 +02:00
nmlgc b9bc6ac04d [Decompilation] [th01] Bomb items: Spawn function 
Part of P0158, funded by Yanga.
 2021-09-28 18:05:24 +02:00
nmlgc b75ee8c208 [Reverse-engineering] [th01] Items: Structure 
Storing bomb and point items not just in separate arrays, but also
using separate *functions* for both?! At least it's only a single
structure for both.

Part of P0158, funded by Yanga.
 2021-09-28 18:05:24 +02:00
nmlgc fc40bdaa09 [Maintenance] [th01] Wrap EGC rectangle copies with 16-bit-aligned widths 
Consolidating the associated "WTF" and "I don't even" and "lol ZUN"
into one place.

Part of P0158, funded by Yanga.
 2021-09-28 18:05:24 +02:00
nmlgc 403fbcc37f [Maintenance] Remove `extern "C"` from more areas of decompiled code 
Most notably from `th01/core/str_val`, where it's really in the way.
That mistake will haunt me until this all is done, probably…

Part of P0158, funded by Yanga.
 2021-09-28 18:05:24 +02:00
nmlgc cf356bbf5e [Maintenance] [th01] Start a new header for commonly used VRAM color indices 
Part of P0158, funded by Yanga.
 2021-09-28 18:05:24 +02:00
nmlgc c2fa1f3d3b [Maintenance] [th01] Use a common macro for sloppy unblitting of .PTN sprites 
Part of P0158, funded by Yanga.
 2021-09-28 18:05:24 +02:00
nmlgc bf7bb7ed73 [Decompilation] [th01] 16× TRAM letters: HARRY UP 
Largely copy-pasted from the previous function, once again.

Completes P0157, funded by Yanga.
 2021-09-12 20:31:41 +02:00
nmlgc ab4c1a9bad [Maintenance] Add a template for stupid bytewise access to logical structures 
For the cases where ZUN's code would always be cleaner without it.

Part of P0157, funded by Yanga.
 2021-09-12 18:35:08 +02:00
nmlgc 4bc6405543 [Decompilation] [th01] HARRY UP pellet pattern 
Completes P0156, funded by Ember2528.
 2021-08-22 23:56:59 +02:00
nmlgc c30304c71e [Reverse-engineering] [th01] Stage timer 
Yes, time*r*, since it technically doesn't count frames.

Part of P0156, funded by Ember2528.
 2021-08-22 23:56:59 +02:00
nmlgc 33c9ef6582 [Decompilation] [th01] Sariel: Loading and initial variables 
Part of P0156, funded by Ember2528.
 2021-08-22 23:56:59 +02:00
nmlgc 0b18c7b99a [Decompilation] [th01] Sariel: Entrance animation 
Just combining effects I've already decompiled last year.

Part of P0156, funded by Ember2528.
 2021-08-22 23:56:59 +02:00
nmlgc e1fcd75cb4 [Decompilation] [th01] Konngara: Move all data to C land 
And that's it! No Konngara-related code left in ASM land, first boss
complete! 30 to go :P

Part of P0156, funded by Ember2528.
 2021-08-22 23:56:59 +02:00
nmlgc 6ffe87f35b [Decompilation] [th01] Konngara: Main function 
Third longest function in all of PC-98 Touhou, and it's even more of a
copy-pasta than the patterns we've seen earlier. Certainly didn't feel
that long.

Part of P0156, funded by Ember2528.
 2021-08-22 23:56:58 +02:00
nmlgc 8aa2b6a405 [Maintenance] [th01] Fix boss_hit_update_and_render() declarations 
Part of P0156, funded by Ember2528.
 2021-08-22 18:50:20 +02:00
nmlgc 9ad578ea93 [Reverse-engineering] [th01] Game clear flag 
Completes P0155, funded by Ember2528.
 2021-08-22 18:50:20 +02:00
nmlgc 40846cab45 [Decompilation] [th01] Konngara: Pattern 12/12 
The one where 10-way spreads of pellets rain from Konngara's sleeve
every 10 frames.

Part of P0155, funded by Ember2528.
 2021-08-22 18:50:20 +02:00
nmlgc 26f019385f [Decompilation] [th01] Konngara: Pattern 11/12 
The one where Konngara swings their sword and fires fast aimed pellets
towards the player.
The third time we've seen the exact same basic function layout…

Part of P0155, funded by Ember2528.
 2021-08-22 18:50:20 +02:00
nmlgc 9c7981fc59 [Decompilation] [th01] Konngara: Pattern 10/12 
The one with lasers fired from the sword across the whole playfield,
either from left to right or from right to left, together with aimed
3-way spreads, every 10 frames.

Part of P0155, funded by Ember2528.
 2021-08-22 18:50:20 +02:00
nmlgc 27c7ffaaa3 [Maintenance] [th01] Fix the type of CShootoutLaser::spawn()'s `col` parameter 
Similarly to cb6367a, you also can't tell from a function's ASM whether
a parameter that's assigned to an 8-bit destination is actually an 8-bit
parameter, or a narrowed 16-bit parameter. That can really only be
gleaned from looking at all call sites…

Part of P0155, funded by Ember2528.
 2021-08-22 18:50:20 +02:00
nmlgc 4fe260f7d5 [Decompilation] [th01] Konngara: Pattern 9/12 
The one where Konngara swings their sword and spawns triangle-shaped
subpatterns along the slash path.
At least no randomness in that one.

Part of P0155, funded by Ember2528.
 2021-08-22 18:50:20 +02:00