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SubS Skelanime functions (#572)

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* Bring code over

* Change ActorDraw typedefs from actor to thisx

* Rename functions

* Format

* Rename and clean up limb draws

* Some more limb draw cleanup

* Some more cleanup

* Function comments

* Last bit of cleanup

* update tutorial

* More tutorial and format

* Remove extra newlines form actorfixer

* Missed one

* Remove some unnecessary casts

* Fix SkelAnime transform functions in functions.h

* Remove bug comments, and add note

* Remove some more unneeded casts and rename one variable

* format

* Fix merge

* Format
This commit is contained in:
Derek Hensley
2022-01-16 12:14:34 -08:00
committed by GitHub
parent a9c2449c11
commit aa90d1ee2b
53 changed files with 411 additions and 271 deletions
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docs/tutorial/draw_functions.md
+12 -12
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@@ -34,7 +34,7 @@ void EnRecepgirl_Draw(Actor *thisx, GlobalContext *globalCtx) {
sp30->polyOpa.p = temp_v1 + 8;
temp_v1->words.w0 = 0xDB060020;
temp_v1->words.w1 = (u32) D_80C106B0[this->unk_2AC];
func_801343C0(globalCtx, this->skelAnime.skeleton, this->skelAnime.jointTable, (s32) this->skelAnime.dListCount, func_80C10558, NULL, func_80C10590, (Actor *) this);
SkelAnime_DrawTransformFlexOpa(globalCtx, this->skelAnime.skeleton, this->skelAnime.jointTable, (s32) this->skelAnime.dListCount, func_80C10558, NULL, func_80C10590, (Actor *) this);
}
```
@@ -107,7 +107,7 @@ void EnRecepgirl_Draw(Actor *thisx, GlobalContext *globalCtx) {
gSPSegment(POLY_OPA_DISP++, 0x08, D_80C106B0[this->unk_2AC]);
func_801343C0(globalCtx, this->skelAnime.skeleton, this->skelAnime.jointTable, this->skelAnime.dListCount, func_80C10558, NULL, func_80C10590, &this->actor);
SkelAnime_DrawTransformFlexOpa(globalCtx, this->skelAnime.skeleton, this->skelAnime.jointTable, this->skelAnime.dListCount, func_80C10558, NULL, func_80C10590, &this->actor);
CLOSE_DISPS(globalCtx->state.gfxCtx);
}
@@ -115,28 +115,28 @@ void EnRecepgirl_Draw(Actor *thisx, GlobalContext *globalCtx) {
And this matches.
The last two functions in the actor are used as arguments in `func_801343C0`. This is a `SkelAnime` function, except unlike the OoT ones, it has three function callback arguments instead of two: in `functions.h` or `z_skelanime.c`, we find
The last two functions in the actor are used as arguments in `SkelAnime_DrawTransformFlexOpa`. This is a `SkelAnime` function, except unlike the OoT ones, it has three function callback arguments instead of two: in `functions.h` or `z_skelanime.c`, we find
```C
void func_801343C0(GlobalContext* globalCtx, void** skeleton, Vec3s* jointTable, s32 dListCount,
OverrideLimbDraw overrideLimbDraw, PostLimbDraw postLimbDraw, UnkActorDraw unkDraw, Actor* actor)
void SkelAnime_DrawTransformFlexOpa(GlobalContext* globalCtx, void** skeleton, Vec3s* jointTable, s32 dListCount,
OverrideLimbDrawOpa overrideLimbDraw, PostLimbDrawOpa postLimbDraw, TransformLimbDrawOpa transformLimbDraw, Actor* actor)
```
The typedefs of the callbacks it uses are in `z64animation.h`:
```C
typedef s32 (*OverrideLimbDraw)(struct GlobalContext* globalCtx, s32 limbIndex, Gfx** dList, Vec3f* pos, Vec3s* rot,
struct Actor* actor);
typedef s32 (*OverrideLimbDrawOpa)(struct GlobalContext* globalCtx, s32 limbIndex, Gfx** dList, Vec3f* pos, Vec3s* rot,
struct Actor* thisx);
typedef void (*PostLimbDraw)(struct GlobalContext* globalCtx, s32 limbIndex, Gfx** dList, Vec3s* rot,
struct Actor* actor);
typedef void (*PostLimbDrawOpa)(struct GlobalContext* globalCtx, s32 limbIndex, Gfx** dList, Vec3s* rot,
struct Actor* thisx);
[...]
typedef void (*UnkActorDraw)(struct GlobalContext* globalCtx, s32 limbIndex, struct Actor* actor);
typedef void (*TransformLimbDrawOpa)(struct GlobalContext* globalCtx, s32 limbIndex, struct Actor* thisx);
```
which is where mips2c got them from.
In this case, only two of them are used, and it is these that are the last functions standing between us and a decompiled actor.
## OverrideLimbDraw, PostLimbDraw, UnkActorDraw
## OverrideLimbDraw, PostLimbDraw, TransformLimbDraw
Well, we don't have a PostLimbDraw here, but as we see from the prototype, it's much the same as the OverrideLimbDraw but without the `pos` argument and no return value.
```C
@@ -159,7 +159,7 @@ s32 func_80C10558(GlobalContext *globalCtx, s32 limbIndex, Gfx **dList, Vec3f *p
}
```
As for the UnkActorDraw, it has a much simpler prototype. mips2c gives
As for the TransformLimbDraw, it has a much simpler prototype. mips2c gives
```C
void func_80C10590(GlobalContext *globalCtx, s32 limbIndex, Actor *actor) {
if (limbIndex == 5) {