Rooba
/
ReC98
mirror of https://github.com/nmlgc/ReC98.git
1
1
Fork 0
Code Issues Packages Projects Releases Wiki Activity
887 Commits 22 Branches 3 Tags 53 MiB
Commit Graph

887 Commits

Author SHA1 Message Date
nmlgc 261d5037ed [Reverse-engineering] [th04/th05] .STD file loading 
… because TH04's version of this takes the ASCII stage ID directly from
the resident structure.

So boss battles are simply triggered by setting the background tile
scroll speed to 0? That means…

Funded by zorg.
 2018-12-26 17:59:03 +01:00
nmlgc 3f06c63206 [Reverse-engineering] [th03/th04/th05] Pointers to the resident structure 
Quickly doing these despite not having RE'd the structures themselves
yet…

Funded by zorg.
 2018-12-26 17:59:03 +01:00
nmlgc 6c555aad61 [Readme] Mention that stage portions in TH04/TH05 *are* handled by bytecode 
Funded by zorg.
 2018-12-26 17:59:03 +01:00
nmlgc 4a0b973c76 [Reverse-engineering] [th04/th05] Midboss-related function pointers 
Funded by zorg.
 2018-12-26 17:59:03 +01:00
nmlgc 25ee5990aa [Reverse-engineering] [th04/th05] Boss battle backdrop rendering 
Funded by zorg.
 2018-12-26 17:59:03 +01:00
nmlgc d211a22c9f [Reverse-engineering] [th04/th05] GRCG-powered playfield row filling 
Isn't it quite a bit risky to do that without a CLD in front?

Funded by zorg.
 2018-12-26 17:59:01 +01:00
nmlgc bc3c85f09a [Reverse-engineering] [th04/th05] GRCG/EGC-powered VRAM writes 
Funded by zorg.
 2018-12-25 23:45:24 +01:00
nmlgc 41622254a8 [Reverse-engineering] EGC register writes 
Funded by zorg.
 2018-12-25 23:45:24 +01:00
nmlgc b62a8b29a6 [Reverse-engineering] [th02/th04/th05] Boss-related function pointers 
No idea what these other ones in TH02 are.

Funded by zorg.
 2018-12-18 19:52:41 +01:00
nmlgc 0cde4b7cd3 [Reverse-engineering] [th05] Laser update and render functions 
Funded by zorg.
 2018-12-17 00:27:38 +01:00
nmlgc 8634e10b6d [Reverse-engineering] [th04/th05] Bullet clear trigger and time 
Funded by zorg.
 2018-12-16 01:49:55 +01:00
nmlgc 4aeb035121 [Reverse-engineering] [th04/th05] A random shared draw coordinate 
Local variables are so overrated.

Funded by zorg.
 2018-12-16 00:31:05 +01:00
nmlgc b3c5e4dcfe [Reverse-engineering] [th05] Rendering and hit testing for a single laser 
What the hell.

Funded by zorg.
 2018-12-15 23:04:26 +01:00
nmlgc 9d79c1413c [Reverse-engineering] [th05] Laser coordinate sub-structure 
Yup, the draw function actually takes a sub-structure starting at 0x02.

Funded by zorg.
 2018-12-15 23:04:24 +01:00
nmlgc 07e466cf3b [Reverse-engineering] [th01/th02/th04/th05] Player hit flag 
Funded by zorg.
 2018-12-15 22:57:36 +01:00
nmlgc e73d740926 [Reverse-engineering] [th05] Laser control functions 
Funded by zorg.
 2018-12-15 22:57:34 +01:00
nmlgc ac7e6bc176 [Reverse-engineering] [th05] Rank-based speed adjustment 
Again, one of these functions that ZUN *probably* wrote in ASM for shits
and giggles, which you *again could* "decompile" using in-line assembly,
but that kind of defeats the point.
Oh well, at least the fact that the parameter is passed in AL means that
the calling convention must have been __fastcall, and *that* part *does*
cleanly map to C. Unlike some of the functions in d08a7f4.

Funded by zorg.
 2018-12-12 21:50:44 +01:00
nmlgc 807df3d5a7 [Reverse-engineering] [th05] Laser structure 
Struct strLASER in uth05win… except that the member names in that one
were not only a bit too unclear, but `ageThres` and `shootAgeThres`
should have also been the other way round.

Also, yes, TH04's laser structure seems completely different.

Funded by -Tom-.
 2018-12-12 02:49:42 +01:00
nmlgc 0e8bbe8130 [Reverse-engineering] [th04/th05] Player performance ("rank") management 
Going with uth05win's "player performance" here, since we already use
"rank" for Easy/Normal/Hard/Lunatic.

Funded by -Tom-.
 2018-12-10 21:00:19 +01:00
nmlgc f3b6137fe2 [Reverse-engineering] [th04/th05] Midboss HP 
Funded by -Tom-.
 2018-12-09 01:09:17 +01:00
nmlgc 9fd3f6dbf6 [Reverse-engineering] [th04/th05] Boss position 
Funded by -Tom-.
 2018-12-09 00:57:42 +01:00
nmlgc 59e692a82a [Reverse-engineering] [th04/th05] Midboss position 
Funded by -Tom-.
 2018-12-09 00:47:52 +01:00
nmlgc 352240e6c5 [Reverse-engineering] [th04/th05] Boss animation sprite IDs 
Funded by -Tom-.
 2018-12-09 00:47:50 +01:00
nmlgc 36b1a02773 [Reverse-engineering] [th05] Yuki's HP 
Internally, Mai is seen as the "primary" Stage 4 boss.

Funded by -Tom-.
 2018-12-09 00:44:31 +01:00
nmlgc e855e1a908 [Reverse-engineering] [th04/th05] Boss phase end HP 
Funded by -Tom-.
 2018-12-09 00:40:20 +01:00
nmlgc 49a67a1a8b [Reverse-engineering] [th04/th05] Boss HP 
Funded by -Tom-.
 2018-12-09 00:20:27 +01:00
nmlgc b03bc91357 [Reverse-engineering] [th04/th05] Growing and shrinking circles 
As seen during bomb animations, and around bosses. Class CCircle in
uth05win.

Funded by -Tom-.
 2018-12-06 23:29:45 +01:00
nmlgc d08a7f49b6 [Reduction] [th04/th05] Redefined GRCG mode/color setting functions 
Funded by -Tom-.
 2018-12-06 22:39:11 +01:00
nmlgc 70d1e1c230 [Reverse-engineering] [th04/th05] Inlined GRCG color setting calls 
Funded by -Tom-.
 2018-12-06 19:42:44 +01:00
nmlgc 83e089cba9 [Reverse-engineering] Inlined GRCG mode setting calls 
Funded by -Tom-.
 2018-12-06 19:18:02 +01:00
nmlgc d7483c09cc [Maintenance] Fix the TASM32 crash when assembling th03_mainl.asm 
Right, the last path component in an INCLUDE file name is "limited" to 28
bytes. Turns out it only crashes on every system that *isn't* the main one I
develop on, though…
 2018-12-04 19:55:18 +01:00
nmlgc 141baa4ca9 [Reverse-engineering] [th05/maine] Remaining references to CDG slot data 
…unlike these two identical functions, which hopefully become clearer
after more reverse-engineering has been done around them. It's not like
they're directly related to CDG slot data anyway, they just apply the
TH05 version of the dissolution effect in the staff roll on top of the
already displayed image.

And that concludes all CDG/CD2-related code!

Funded by DTM.
 2018-10-16 01:04:46 +02:00
nmlgc 01a430d027 [Reverse-engineering] [th03/mainl] CDG line removal for upwards motion 
Not *really* CDG-related, but it does use CDG slot data, and is easy
enough to be covered right now…

Funded by DTM.
 2018-10-16 01:04:46 +02:00
nmlgc 766a34d044 [Reverse-engineering] [th04/maine] Single-plane CDG display 
Only used in the staff roll.

Funded by DTM.
 2018-10-16 01:04:46 +02:00
nmlgc 4bc6da4858 [Reverse-engineering] [th03/mainl] Dissolved CDG display 
Depending on two variables that… uh, aren't exactly related to this
function? Let's wait with those until we get there.

Funded by DTM.
 2018-10-16 01:04:46 +02:00
nmlgc 850b8d783c [Reverse-engineering] [th03/mainl] CDG freeing 
Funded by DTM.
 2018-10-16 01:04:46 +02:00
nmlgc fc8d51c7d7 [Reverse-engineering] [th04/th05] Non-color CDG display 2018-10-16 01:04:46 +02:00
nmlgc aa47bb33d9 [Reverse-engineering] [th04/th05] Non-alpha CDG display 2018-10-16 01:04:46 +02:00
nmlgc bfef793805 [Reverse-engineering] [th04/th05] Normal CDG display 
In which the th05 difference is the lack of self-modifying code.
 2018-10-16 01:04:46 +02:00
nmlgc 286c6431d8 [Reverse-engineering] [th04/th05] CDG loading 2018-10-16 01:04:46 +02:00
nmlgc 18ae3e5cca [Reverse-engineering] [th03] Horizontally flipped CDG display 2018-10-16 01:04:46 +02:00
nmlgc 4b8d0931b9 [Reverse-engineering] [th03] Non-alpha CDG display 2018-10-16 01:04:46 +02:00
nmlgc df768ebea6 [Reverse-engineering] [th03] Normal CDG display 2018-10-16 01:04:43 +02:00
nmlgc fa39c23fad [Reverse-engineering] [th03] CDG loading 2018-10-16 00:47:58 +02:00
nmlgc 79cc3ed71c [Reverse-engineering] [th03/th04/th05] Input change delay function 
With TH05 definitely being the Galaxy Brain version of this function.
You'll see once I get to push the C decompilation for that one…

Anyway, that covers all shared input functions of TH02-TH05!

Funded by zorg.
 2018-09-17 22:10:42 +02:00
nmlgc 8dfc2cd535 [Research] Find out why ≥TH03 checks input twice per frame, with a 0.6ms delay 
Thanks to @joncampbell123 for the tip!

Funded by zorg.
 2018-09-13 18:32:24 +02:00
nmlgc cbe8a37c53 [Reverse-engineering] [th03] Single-/multi-player/CPU input modes 
Funded by zorg.
 2018-09-12 15:53:12 +02:00
nmlgc c592464121 [Reverse-engineering] [th03/th04/th05] Basic keyboard input functions 
Funded by zorg.
 2018-09-11 19:34:19 +02:00
nmlgc 178d589408 [Reverse-engineering] [th04/th05] Player position 
Funded by zorg.
 2018-09-02 21:10:26 +02:00
nmlgc 5a5c347e82 [Reverse-engineering] [th04/th05] Generic motion structure and its step method 
Seemingly included in every other larger structure describing anything
remotely sprite-like. Couldn't find this in the earlier games,
unfortunately…

Funded by zorg.
 2018-09-02 21:06:48 +02:00