Decompile obj_wturn (#564)

* Decompile obj_wturn

* Format

* Rename struct member

* Make suggestions

* Format

* Fix warning

Co-authored-by: Elliptic Ellipsis <elliptic.ellipsis@gmail.com>

2 files changed, 107 insertions, 32 deletions

diff --git a/src/overlays/actors/ovl_Obj_Wturn/z_obj_wturn.c b/src/overlays/actors/ovl_Obj_Wturn/z_obj_wturn.c
index 225587cdc..34d82523f 100644
--- a/src/overlays/actors/ovl_Obj_Wturn/z_obj_wturn.c
+++ b/src/overlays/actors/ovl_Obj_Wturn/z_obj_wturn.c
@@ -13,42 +13,116 @@
 void ObjWturn_Init(Actor* thisx, GlobalContext* globalCtx);
 void ObjWturn_Update(Actor* thisx, GlobalContext* globalCtx);
 
+void func_808A7954(ObjWturn* this);
 void func_808A7968(ObjWturn* this, GlobalContext* globalCtx);
+void func_808A7A24(ObjWturn* this);
 void func_808A7A5C(ObjWturn* this, GlobalContext* globalCtx);
+void func_808A7AAC(ObjWturn* this, GlobalContext* globalCtx);
 void func_808A7BA0(ObjWturn* this, GlobalContext* globalCtx);
+void func_808A7C04(ObjWturn* this, GlobalContext* globalCtx);
 void func_808A7C78(ObjWturn* this, GlobalContext* globalCtx);
 
-#if 0
 const ActorInit Obj_Wturn_InitVars = {
-    ACTOR_OBJ_WTURN,
-    ACTORCAT_ITEMACTION,
-    FLAGS,
-    GAMEPLAY_KEEP,
-    sizeof(ObjWturn),
-    (ActorFunc)ObjWturn_Init,
-    (ActorFunc)Actor_Noop,
-    (ActorFunc)ObjWturn_Update,
-    (ActorFunc)NULL,
+    ACTOR_OBJ_WTURN,       ACTORCAT_ITEMACTION,        FLAGS,
+    GAMEPLAY_KEEP,         sizeof(ObjWturn),           (ActorFunc)ObjWturn_Init,
+    (ActorFunc)Actor_Noop, (ActorFunc)ObjWturn_Update, (ActorFunc)NULL,
 };
 
-#endif
-
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Wturn/ObjWturn_Init.s")
-
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Wturn/func_808A7954.s")
-
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Wturn/func_808A7968.s")
-
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Wturn/func_808A7A24.s")
-
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Wturn/func_808A7A5C.s")
-
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Wturn/func_808A7AAC.s")
-
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Wturn/func_808A7BA0.s")
-
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Wturn/func_808A7C04.s")
-
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Wturn/func_808A7C78.s")
-
-#pragma GLOBAL_ASM("asm/non_matchings/overlays/ovl_Obj_Wturn/ObjWturn_Update.s")
+void ObjWturn_Init(Actor* thisx, GlobalContext* globalCtx) {
+    ObjWturn* this = THIS;
+
+    func_808A7954(this);
+}
+
+void func_808A7954(ObjWturn* this) {
+    this->actionFunc = func_808A7968;
+}
+
+void func_808A7968(ObjWturn* this, GlobalContext* globalCtx) {
+    if (globalCtx->msgCtx.ocarinaMode >= 28 && globalCtx->msgCtx.ocarinaMode < 39) {
+        Flags_UnsetSwitch(globalCtx, this->actor.params);
+        Actor_MarkForDeath(&this->actor);
+    } else if ((Flags_GetSwitch(globalCtx, this->actor.params) && (globalCtx->sceneNum == SCENE_F40)) ||
+               (!Flags_GetSwitch(globalCtx, this->actor.params) && (globalCtx->sceneNum == SCENE_F41))) {
+        func_808A7A24(this);
+    }
+}
+
+void func_808A7A24(ObjWturn* this) {
+    ActorCutscene_SetIntentToPlay(this->actor.cutscene);
+    this->actionFunc = func_808A7A5C;
+}
+
+void func_808A7A5C(ObjWturn* this, GlobalContext* globalCtx) {
+    if (ActorCutscene_GetCanPlayNext(this->actor.cutscene)) {
+        func_808A7AAC(this, globalCtx);
+    } else {
+        ActorCutscene_SetIntentToPlay(this->actor.cutscene);
+    }
+}
+
+void func_808A7AAC(ObjWturn* this, GlobalContext* globalCtx) {
+    Player* player = GET_PLAYER(globalCtx);
+    Vec3f eye;
+    Vec3f at;
+
+    ActorCutscene_StartAndSetUnkLinkFields(this->actor.cutscene, &this->actor);
+    func_8016566C(140);
+    this->camId = ActorCutscene_GetCurrentCamera(this->actor.cutscene);
+    func_800B7298(globalCtx, &this->actor, 21);
+    at.x = player->actor.focus.pos.x;
+    at.z = player->actor.focus.pos.z;
+    at.y = player->actor.focus.pos.y;
+    eye.x = (Math_SinS(this->actor.shape.rot.y) * 150.0f) + at.x;
+    eye.z = (Math_CosS(this->actor.shape.rot.y) * 150.0f) + at.z;
+    eye.y = at.y + 4.0f;
+    Play_CameraSetAtEye(globalCtx, this->camId, &at, &eye);
+    this->actionFunc = func_808A7BA0;
+}
+
+void func_808A7BA0(ObjWturn* this, GlobalContext* globalCtx) {
+    if (Math_ScaledStepToS(&this->actor.shape.rot.z, -0x8000, 0x0200)) {
+        func_808A7C04(this, globalCtx);
+    }
+    func_800B8FE8(&this->actor, NA_SE_EV_EARTHQUAKE - SFX_FLAG);
+    Play_CameraSetRoll(globalCtx, this->camId, this->actor.shape.rot.z);
+}
+
+void func_808A7C04(ObjWturn* this, GlobalContext* globalCtx) {
+    Player* player = GET_PLAYER(globalCtx);
+
+    this->actor.world.pos.y += this->actor.playerHeightRel;
+    player->actor.shape.shadowAlpha = 0;
+    func_800B7298(globalCtx, &this->actor, 0x54);
+    func_800B8E58(player, NA_SE_VO_NAVY_ENEMY);
+    this->unk_14A = 0;
+    func_80165690();
+    this->actionFunc = func_808A7C78;
+}
+
+void func_808A7C78(ObjWturn* this, GlobalContext* globalCtx) {
+    static Vec3f D_808A7DC0 = { 0.0f, -1.0f, 0.0f };
+    Camera* camera = Play_GetCamera(globalCtx, this->camId);
+    Player* player = GET_PLAYER(globalCtx);
+
+    this->unk_14A++;
+    player->actor.world.pos.y = this->actor.world.pos.y + this->unk_14A * 4.0f;
+    Play_CameraSetAtEyeUp(globalCtx, this->camId, &player->actor.focus.pos, &camera->eye, &D_808A7DC0);
+    if (this->unk_14A == 1) {
+        globalCtx->unk_1887F = 0x40;
+        gSaveContext.nextTransition = 3;
+        gSaveContext.nextCutsceneIndex = 0;
+        if (globalCtx->sceneNum == 0x58) {
+            globalCtx->nextEntranceIndex = 0xAC00;
+        } else {
+            globalCtx->nextEntranceIndex = 0xAA10;
+        }
+        globalCtx->sceneLoadFlag = 0x14;
+    }
+}
+
+void ObjWturn_Update(Actor* thisx, GlobalContext* globalCtx) {
+    ObjWturn* this = THIS;
+
+    this->actionFunc(this, globalCtx);
+}
diff --git a/src/overlays/actors/ovl_Obj_Wturn/z_obj_wturn.h b/src/overlays/actors/ovl_Obj_Wturn/z_obj_wturn.h
index 0b0b8b375..0390ac7a8 100644
--- a/src/overlays/actors/ovl_Obj_Wturn/z_obj_wturn.h
+++ b/src/overlays/actors/ovl_Obj_Wturn/z_obj_wturn.h
@@ -10,7 +10,8 @@ typedef void (*ObjWturnActionFunc)(struct ObjWturn*, GlobalContext*);
 typedef struct ObjWturn {
     /* 0x0000 */ Actor actor;
     /* 0x0144 */ ObjWturnActionFunc actionFunc;
-    /* 0x0148 */ char unk_148[0x4];
+    /* 0x0148 */ s16 camId;
+    /* 0x014A */ s16 unk_14A;
 } ObjWturn; // size = 0x14C
 
 extern const ActorInit Obj_Wturn_InitVars;