2b617dfa75
[Reverse-engineering] [th05] Music Room piano coordinates
2019-12-17 23:26:55 +01:00
b74b7f9bce
[Reverse-engineering] [th05] Music Room piano label font
2019-12-17 23:26:55 +01:00
d0c4de0c7f
[Naming] [th04/th05] GameCore
2019-12-17 23:26:55 +01:00
895884fc7a
[Naming] [th02/th04/th05] HUD display functions
2019-12-17 23:26:55 +01:00
25903719a3
[Naming] [th02] Current and high score
2019-12-17 23:26:55 +01:00
1ffa121821
[Naming] [th02] Gaiji loading
...
Renaming these to gaiji_load() and gaiji_free() for consistency with
other functions that load files. --Nmlgc
2019-12-17 23:26:54 +01:00
0b084b83c3
[Reverse-engineering] [th04/th05] graph_putsa_fx
2019-12-17 23:26:54 +01:00
75f05c8b90
[Reverse-engineering] [th04/th05] graph_putsa_fx tables
2019-12-17 23:26:54 +01:00
6e09a2c15f
[Naming] [th04/th05] graph_putsa_fx
2019-12-17 22:44:30 +01:00
811ba84e3f
[Reverse-engineering] [th03/th04/th05] snd_delay_until_measure
2019-12-17 22:44:27 +01:00
e8c9876bef
[Reverse-engineering] [th05] Current BGM measure
...
Split off from the delay function in this game, since the ending syncs
a bunch of things independent from any frame delays. -Nmlgc
2019-12-17 22:44:23 +01:00
a23dab3154
[Reverse-engineering] MMD ticks-per-quarter-note constant
...
And then, ZUN hardcodes all measure-related functions to 4/4…
2019-12-17 22:40:05 +01:00
5f4f5d87dc
[Decompilation] [th03] Shot update and render functions
...
Meh, can't overload arithmetic operators that take a Subpixel without
generating a needless load and store, even with -Z. But heck, slightly
uglifying subpixel/subpixel arithmetic is exactly the right trade-off.
Completes P0061, funded by Touhou Patch Center.
2019-12-05 21:41:31 +01:00
8b01c60f44
[Maintenance] Move PC-98 hardware constants to a separate include file
...
SPRITE16 would also like to refer to those later.
Part of P0061, funded by Touhou Patch Center.
2019-12-05 21:38:39 +01:00
5c1a864432
[Reverse-engineering] [th03] Shot pair structure
...
Yup, one structure instance describes one *pair* of shot sprites in
TH03.
Part of P0061, funded by Touhou Patch Center.
2019-12-05 21:38:32 +01:00
296f9f61c2
[Reverse-engineering] [th03] Playfield shaking
...
Which only applies to the set of sprites considered to be in the
foreground, so no EGC acceleration.
Part of P0061, funded by Touhou Patch Center.
2019-12-05 21:36:02 +01:00
4030ef737a
[Reverse-engineering] [th03] Character movement and gauge charge speeds
...
Part of P0061, funded by Touhou Patch Center.
2019-12-05 21:35:02 +01:00
4d3d6acd28
[Decompilation] Templatize subpixels to offer both 16-bit and 8-bit variants
...
Yup, TH03 actually uses a 4.4 fixed-point format.
Part of P0061, funded by Touhou Patch Center.
2019-12-05 21:27:53 +01:00
bb6b0f1cc3
[Maintenance] Move the Subpixel class to a separate header, under TH03
...
Part of P0061, funded by Touhou Patch Center.
2019-12-05 21:21:56 +01:00
04d24ccf1c
[Reverse-engineering] [th03] Character IDs
...
Part of P0061, funded by Touhou Patch Center.
2019-12-05 21:21:49 +01:00
96684f45dc
[Reverse-engineering] [th04/th05] Pause menu
2019-11-30 19:36:07 +01:00
30e6b7c3db
[Maintenance] Correctly declare all input functions
...
The pascal calling convention for TH03's input mode functions actually
sort of matters, since we have this nice function pointer type that
expects pascal.
2019-11-30 19:34:55 +01:00
a6a805f008
[ZUN symbols] key_det / shiftkey
...
Not applying this leak to TH03 since it would have more than one
`key_det` variable, resulting in names that are as much fanfiction as
the current ones…
2019-11-30 19:32:10 +01:00
73f5ae79a0
[Reverse-engineering] [th03] Demo frame counter
...
My dumb parser identified this as a reference to the PI header slots,
which is why it's here now!
Completes P0060, funded by Touhou Patch Center.
2019-11-28 23:23:30 +01:00
5bffab4f43
[Position independence] [th04/th05] Remaining references to PI slots
...
Part of P0060, funded by Touhou Patch Center.
2019-11-28 23:23:30 +01:00
619203a1c9
[Position independence] [th02/th03/th04/th05] Color palettes
...
Part of P0060, funded by Touhou Patch Center.
2019-11-28 23:23:29 +01:00
b6e0330ff6
[Decompilation] [th03] Sprite display calls
...
Yes, decompilation, of something that was so obviously originally
written in ASM. We're still left with two un-decompilable instructions
here, but I'm amazed at how nicely I was able to abstract away all of
the gory register details, leading to pretty clear, readable, and dare
I say *portable* code?! Turbo C++ was once again pretty helpful here:
• `static_cast<char>(_BX) = _AL` actually compiles into `MOV BL, AL`,
as you would have intended,
• and no-op assignments like _DI = _DI are optimized away, allowing
us to leave them in for clarity, so that we can have all parameter
assignments for the SPRITE16 display call in a single place.
I love this compiler.
Part of P0060, funded by Touhou Patch Center.
2019-11-28 23:14:21 +01:00
2269d0c29c
[Reverse-engineering] [th03] Playfield sprite clipping coordinates
...
Part of P0060, funded by Touhou Patch Center.
2019-11-28 23:12:10 +01:00
29385dd7cb
[Naming] [th02] text_wipe
2019-11-24 16:02:43 +01:00
61a2df2d71
[Naming] [th04/th05] EMS area setup
2019-11-24 16:02:43 +01:00
37fb6eba32
[Naming] [th02/th04/th05] Demo loading and playback
2019-11-24 14:14:13 +01:00
7c80fb01f2
[Contributing] Establish how to cite ZUN's source code leaks
2019-11-24 14:14:13 +01:00
22bf71d170
[Reduction] [th03/th04/th05] game_init_main
2019-11-24 14:14:13 +01:00
9b9f487d6c
[Naming] [th03/th04/th05] graph_putsa_fx
...
Let's cover this one during decompilation.
2019-11-24 14:14:05 +01:00
09edcab744
[Reduction] [th03/th04/th05] game_init_op
2019-11-24 14:04:36 +01:00
71c737c4ee
[Maintenance] Move DOS memory assignment sizes to separate files
...
Ideally, these could be calculated from some other game-specific
parameters? Anyone else who wants to look into this?
2019-11-24 14:04:36 +01:00
3f25caa5df
[Reverse-engineering] [th02/th03/th04/th05] DOS memory assignment sizes
...
Changing the variable suffix to _paras rather than _siz here, since
master.lib uses the latter for byte sizes, while these are paragraphs.
2019-11-24 14:04:34 +01:00
0009c3c161
[Reduction] [th03/th04/th05] game_exit_to_dos
2019-11-24 12:45:25 +01:00
34b7b61964
[Reduction] [th03/th04/th05] game_exit
2019-11-24 12:45:17 +01:00
5f0b2642ea
[Maintenance] Fix #include syntax for mdrv2.c
2019-11-24 12:45:08 +01:00
e9453bffe0
[Contributing] Add a rule against decompiling self-modifying code
...
Will come up soon in TH03, actually.
2019-11-20 00:22:43 +01:00
afbc7eb381
[Contributing] Add some welcoming words for new contributors
...
And the explicit permission to also do something as seemingly trivial
as naming functions or data on separate branches, which apparently
still needed to be said somewhere.
2019-11-20 00:22:26 +01:00
c196cdb41e
[Contributing] Fix a few minor typos and omissions
2019-11-19 23:09:36 +01:00
8b627803a3
[Position independence] Vector calls and variables
...
Raw, uninteresting position independence work. Or maybe not, given that
this was one of the few things that also apply to TH01, and reveal just
how chaotically this game was coded. And so we've got three ways that
ZUN stored regular 2D points: Regularly (X first, Y second), Y first
and X second, and multiple points stored in a structure of arrays…
Completes P0059, funded by [Anonymous] and -Tom-.
2019-11-18 22:24:24 +01:00
550bba9b3c
[Position independence] False positives in master.lib EGC function calls
...
Mostly used for screen shaking.
Part of P0059, funded by [Anonymous] and -Tom-.
2019-11-18 22:21:34 +01:00
3d7211b128
[Position independence] Remaining motion structures and comparisons
...
Part of P0059, funded by [Anonymous] and -Tom-.
2019-11-18 22:21:29 +01:00
ad22ce26c2
[Reverse-engineering] [th04/th05] Player position clamping
...
Part of P0059, funded by [Anonymous] and -Tom-.
2019-11-18 22:21:23 +01:00
b37611b1be
[Maintenance] Add an underscore to the player_pos variable
...
No need to declare them as `pascal` on the C side only because I messed
up when naming them first.
Part of P0059, funded by [Anonymous] and -Tom-.
2019-11-18 22:21:15 +01:00
01de2900dd
[Decompilation] [th01] frame_delay
...
Closes #7 .
2019-11-18 21:29:43 +01:00
fef0299fbc
[Reverse-engineering] [th04/th05] Midboss / boss explosion phase constants
...
In the end, the explosions remain the only constant in these phases,
everything else ("defeat"? "last phase"?) could have been
misunderstood. And yes, the algorithm really treated these 111
constants as potential memory references…
Completes P0058, funded by -Tom-.
2019-11-14 00:57:38 +01:00
wintiger0222