f5313d14cb
[Decompilation] [th02] Items: Semi-random spawn function
...
Featuring a 1-in-512 chance for a bomb drop… among every 4th call to
this function.
Part of P0243, funded by Yanga.
2023-06-07 18:32:38 +02:00
2a059e2206
[Decompilation] [th02] Items: Spawn function
...
Hitting exactly 30% RE for TH02.
Part of P0243, funded by Yanga.
2023-06-07 18:32:38 +02:00
310ff3d7df
[Decompilation] [th02] Items: Spawning the 5 items when losing a life
...
Part of P0243, funded by Yanga.
2023-06-07 17:00:35 +02:00
1099383256
[Decompilation] [th02] Items: Tile invalidation
...
Part of P0243, funded by Yanga.
2023-06-07 16:58:10 +02:00
943da08767
[Decompilation] [th02] Items: Collision detection and collection
...
Part of P0243, funded by Yanga.
2023-06-07 16:57:41 +02:00
8f7478b108
[Decompilation] [th02] Items: Update and render function
...
Part of P0243, funded by Yanga.
2023-06-07 16:49:05 +02:00
916992e5d1
[Reverse-engineering] [th02] Items: Shared state
...
Part of P0243, funded by Yanga.
2023-06-07 15:38:32 +02:00
6ff396f96a
[Reverse-engineering] [th02] Items: Structure
...
Part of P0243, funded by Yanga.
2023-06-07 15:34:49 +02:00
720fd575b1
[Reverse-engineering] [th02] Player: Current position
...
Part of P0243, funded by Yanga.
2023-06-07 15:34:44 +02:00
dfa758da89
[Decompilation] [th02] Gaiji loading and freeing
...
Completes P0242, funded by Yanga.
2023-06-07 15:34:37 +02:00
fefeb1859d
[Decompilation] [th02] HUD: Full rendering
...
Part of P0242, funded by Yanga.
2023-06-07 01:32:45 +02:00
b38db78441
[Decompilation] [th02] HUD: Score rendering
...
Part of P0242, funded by Yanga.
2023-06-07 01:18:32 +02:00
ef7162195a
[Decompilation] [th02] Score: Initialization, reset, and consistency functions
...
Part of P0242, funded by Yanga.
2023-06-07 00:40:27 +02:00
617815b745
[Decompilation] [th02] Score: Regular update and render function
...
Part of P0242, funded by Yanga.
2023-06-07 00:40:27 +02:00
6763b44dd0
[Decompilation] [th02] Score: Turning the current delta into a bonus
...
By leaving out just the one `score_delta = 0;` assignment, ZUN created
a function with semantics so complex that it already required naming
all other score-related functions just to make sense of it.
Part of P0242, funded by Yanga.
2023-06-07 00:40:27 +02:00
7e64c1cc06
[Decompilation] [th02] HUD: Life and bomb display
...
Part of P0242, funded by Yanga.
2023-06-06 21:38:27 +02:00
0d28c116c0
[Decompilation] [th02] HUD: Power bar rendering
...
Which also commits power changes to the shot level…
Part of P0242, funded by Yanga.
2023-06-06 21:37:07 +02:00
7bd0ac3f17
[Reverse-engineering] [th02] Score deltas
...
Part of P0242, funded by Yanga.
2023-06-06 21:20:57 +02:00
dcec17fb42
[Reverse-engineering] [th02] Score extend globals
...
First feature commit, and it already raises the big questions.
Part of P0242, funded by Yanga.
2023-06-06 21:20:16 +02:00
000bac9190
[Maintenance] Random number ring buffer: Fix inconsistencies between & and %
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Bracketing is hard!
Part of P0242, funded by Yanga.
2023-06-06 21:11:58 +02:00
2c52cc83b1
[Maintenance] Random number ring buffer: Remove `extern "C"`
...
Didn't expect to cover it this soon, but I'd really like to have a "is
range a power of two" template.
Part of P0242, funded by Yanga.
2023-06-06 21:07:08 +02:00
9aad9ad114
[Maintenance] Declare 8-bit pixel delta and length types
...
Part of P0242, funded by Yanga.
2023-06-06 21:02:47 +02:00
08352a5a81
[Decompilation] [th04] Stage tiles: Setting single tiles / .STD: Load function
...
Word alignment forces us to decompile these two barely related things
in a single commit. The former is at least much better and saner than
its TH02 counterpart.
Completes P0241, funded by [Anonymous] and Blue Bolt.
2023-05-30 01:31:46 +02:00
5f030461e7
[Decompilation] [th04/th05] .STD: Declare functions and data in C land
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And slightly improve the 2018 names, matching TH02's from earlier in
2023.
Part of P0241, funded by [Anonymous] and Blue Bolt.
2023-05-30 01:31:46 +02:00
4ca024317d
[Position independence] [th04] False positives: Frame-based calculations
...
Part of P0241, funded by [Anonymous] and Blue Bolt.
2023-05-30 01:31:46 +02:00
3862e989c7
[Position independence] [th03/th04] False positives: snd_delay_until_measure()
...
Part of P0241, funded by [Anonymous] and Blue Bolt.
2023-05-30 01:31:46 +02:00
d84602d810
[Position independence] [th04] False positives: Upward angles
...
Part of P0241, funded by [Anonymous] and Blue Bolt.
2023-05-30 01:31:46 +02:00
a98ed32b10
[Position independence] [th04] False positives: Q12.4 subpixel calculations
...
Part of P0241, funded by [Anonymous] and Blue Bolt.
2023-05-30 01:31:46 +02:00
4eea7cdd8b
[Reverse-engineering] [th04] Thick lasers: Structure
...
Part of P0241, funded by [Anonymous] and Blue Bolt.
2023-05-30 01:31:46 +02:00
61a90297c3
[Reverse-engineering] [th04] Stage 6 Yuuka: 16×16 background shape structure
...
Procrastinating the separate flag and state variables for now, as they
don't get us any closer to 100% PI.
Part of P0241, funded by [Anonymous] and Blue Bolt.
2023-05-30 01:31:46 +02:00
53292a1f7b
[Reverse-engineering] [th04] 1-plane blitting of regular 16×16 `super_` sprites
...
Yet another master.lib-inspired function that accesses `super_patdata`,
found in 2023. Only used for the star shapes during bomb animations,
and the various shapes in Stage 6 Yuuka's background.
Part of P0241, funded by [Anonymous] and Blue Bolt.
2023-05-30 01:26:02 +02:00
863794d1d6
[Reverse-engineering] [th04] Gengetsu: Wave animation target
...
Part of P0241, funded by [Anonymous] and Blue Bolt.
2023-05-30 01:26:02 +02:00
d0d48b79dd
[Reverse-engineering] [th04] Custom entity structure 6: Gengetsu's column lines
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Ending on the simplest one.
Part of P0241, funded by [Anonymous] and Blue Bolt.
2023-05-30 01:26:02 +02:00
8d44a773f2
[Reverse-engineering] [th04] Custom entity structure 5: Stage 6 Yuuka's circle
...
Part of P0241, funded by [Anonymous] and Blue Bolt.
2023-05-30 01:26:02 +02:00
40c900ffdc
[Reverse-engineering] [th04] Custom entity structure 4: Stage 6 Yuuka's crosses
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Completes P0240, funded by JonathKane.
2023-05-30 01:26:02 +02:00
6b58ba359b
[Reverse-engineering] [th04] Custom entity structure 3: Stage 4 Reimu's orbs
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Part of P0240, funded by JonathKane.
2023-05-30 01:26:02 +02:00
6e93bb2a52
[Reverse-engineering] [th04] Custom entity structure 2: Stage 4 Marisa's bits
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Part of P0240, funded by JonathKane.
2023-05-30 01:26:02 +02:00
2d4d61f977
[Reverse-engineering] [th04] Custom entity structure 1: Kurumi's spawn rays
...
Part of P0240, funded by JonathKane.
2023-05-30 01:26:02 +02:00
8f78fa497d
[Reverse-engineering] [th04] Custom entities: Structure
...
Part of P0240, funded by JonathKane.
2023-05-30 01:26:02 +02:00
45df9ec0c6
[Decompilation] [th04] Scrolling checkerboard background
...
Used during the Stage 6 Yuuka fight, and, fortunately, decompilable
without ASM.
Part of P0240, funded by JonathKane.
2023-05-30 01:25:20 +02:00
9da909467c
[Decompilation] [th04] Stages: Stage 5 background star rendering
...
Part of P0240, funded by JonathKane.
2023-05-29 21:23:08 +02:00
d93e3ab85b
[Maintenance] [th04] Split segment #1 before the Stage 5 render function
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That's it, no more letters left in the front… Gotta clean this up soon.
Part of P0240, funded by JonathKane.
2023-05-29 21:23:08 +02:00
df539f13da
[Maintenance] [th02/th04/th05] Stage tiles: Separate ID → VRAM offset function
...
Perfectly inlines in the one place in TH02 that uses it, and will be
constant-folded away for the few calls in TH04 where ZUN originally
hardcoded VRAM offsets.
Part of P0240, funded by JonathKane.
2023-05-29 21:23:00 +02:00
9a8e0fc0fd
[Maintenance] Move the point structures into `pc98.h`
...
Unfortunately, it's still premature to start a separate header file for
display-space coordinates like I'm doing with Shuusou Gyoku. What does
make sense, though, is moving the display-space vector types next to
the display-space scalar types in `pc98.h`. This makes much more sense
than keeping them in `master.hpp` just because master.lib also has a
Point type. Would have thought that this lets us remove more than two
`master.hpp` inclusions, though…
Part of P0240, funded by JonathKane.
2023-05-25 15:17:01 +02:00
5303c37de2
[Maintenance] [th04/th05] Custom entities: Move declarations to TH04
...
Part of P0240, funded by JonathKane.
2023-05-25 15:11:50 +02:00
be69ab6265
[Research] [th01] Document the bug that causes `game s` to work
...
Because it shouldn't. Thanks to mu021 for bringing this to my
attention!
Part of P0239, funded by Ember2528.
2023-04-30 17:12:57 +02:00
308b6bcd2c
[Maintenance] [th01] Endings: Reclassify the ドカーン image tearing issue as a bug
...
And explicitly define observability in terms of an infinitely fast
PC-98. That's the only reasonable assumption to make when considering
ports to faster architectures that aren't bottlenecked by disappointing
blitter chips.
Part of P0239, funded by Ember2528.
2023-04-30 17:12:47 +02:00
0b13967de3
[Maintenance] [th01] Add some missing detail to existing comments
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Part of P0239, funded by Ember2528.
2023-04-28 22:21:26 +02:00
45c9e71533
[Maintenance] Fix another bunch of accumulated typos and dead code
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Part of P0239, funded by Ember2528.
2023-04-28 22:21:21 +02:00
ea8c4b85a4
[Hooks] pre-commit: Preserve CRLF line endings
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Part of P0239, funded by Ember2528.
2023-04-28 22:21:00 +02:00
nmlgc