First proper commit.

src/overlays/actors/ovl_Bg_Mjin/overlay.cfg

@@ -0,0 +1,2 @@
+ovl_Bg_Mjin
+z_bg_mjin.c

src/overlays/actors/ovl_Bg_Mjin/z_bg_mjin.c

@@ -0,0 +1,134 @@
+/*
+ * File: z_bg_mjin.c
+ * Overlay: ovl_Bg_Mjin
+ * Description: Warp Pad
+*/
+
+#include "z_bg_mjin.h"
+
+#define ROOM  0x00
+#define FLAGS 0x00000010
+
+static void BgMjin_SetupAction(BgMjin* this, ActorFunc actionFunc);
+static void BgMjin_Init(BgMjin* this, GlobalContext* globalCtx);
+static void BgMjin_Destroy(BgMjin* this, GlobalContext* globalCtx);
+static void func_808A0850(BgMjin* this, GlobalContext* globalCtx);
+static void func_808A0920(BgMjin* this, GlobalContext* globalCtx);
+static void BgMjin_Update(BgMjin* this, GlobalContext* globalCtx);
+static void BgMjin_Draw(BgMjin* this, GlobalContext* globalCtx);
+
+const ActorInit Bg_Mjin_InitVars =
+{
+    ACTOR_BG_MJIN,
+    ACTORTYPE_BG,
+    ROOM,
+    FLAGS,
+    OBJECT_GAMEPLAY_KEEP,
+    sizeof(BgMjin),
+    (ActorFunc)BgMjin_Init,
+    (ActorFunc)BgMjin_Destroy,
+    (ActorFunc)BgMjin_Update,
+    NULL,
+};
+
+extern u32 D_06000000;
+extern u32 D_06000140;
+extern u32 D_06000330;
+extern u32 D_06000658;
+
+static InitChainEntry initChain[] =
+{
+    ICHAIN_VEC3F_DIV1000(scale, 1000, ICHAIN_CONTINUE),
+    ICHAIN_F32(unk_F4, 4000, ICHAIN_CONTINUE),
+    ICHAIN_F32(unk_F8, 400, ICHAIN_CONTINUE),
+    ICHAIN_F32(unk_FC, 400, ICHAIN_STOP)
+};
+
+static s16 objectTbl[] = { OBJECT_MJIN_FLASH, OBJECT_MJIN_DARK, OBJECT_MJIN_FLAME, OBJECT_MJIN_ICE, OBJECT_MJIN_SOUL, OBJECT_MJIN_WIND };
+
+static void BgMjin_SetupAction(BgMjin* this, ActorFunc actionFunc)
+{
+    this->actionFunc = actionFunc;
+}
+
+static void BgMjin_Init(BgMjin* this, GlobalContext* globalCtx)
+{
+    Actor* thisx = &this->dyna.actor;
+    s8 objBankIndex;
+
+    Actor_ProcessInitChain(thisx, initChain);
+    objBankIndex = Object_GetIndex(&globalCtx->objectCtx, (thisx->params != 0 ? OBJECT_MJIN : OBJECT_MJIN_OKA));
+    this->objBankIndex = objBankIndex;
+    if (objBankIndex < 0)
+    {
+        Actor_Kill(thisx);
+    }
+    else
+    {
+        BgMjin_SetupAction(this, &func_808A0850);
+    }
+}
+
+static void BgMjin_Destroy(BgMjin* this, GlobalContext* globalCtx)
+{
+    DynaPolyInfo_Free(globalCtx, &globalCtx->colCtx.dyna, this->dyna.dynaPolyId);
+}
+
+static void func_808A0850(BgMjin* this, GlobalContext* globalCtx)
+{
+    u32 local_c;
+    u32 collision;
+
+    if (Object_IsLoaded(&globalCtx->objectCtx, this->objBankIndex))
+    {
+        local_c = 0;
+        this->dyna.actor.flags &= ~0x10;
+        this->dyna.actor.objBankIndex = this->objBankIndex;
+        Actor_SetObjectDependency(globalCtx, &this->dyna.actor);
+        DynaPolyInfo_SetActorMove(&this->dyna.actor, 0);
+        collision = this->dyna.actor.params != 0 ? &D_06000658 : &D_06000330;
+        DynaPolyInfo_Alloc(collision, &local_c);
+        this->dyna.dynaPolyId = DynaPolyInfo_RegisterActor(globalCtx, &globalCtx->colCtx.dyna, &this->dyna.actor, local_c);
+        BgMjin_SetupAction(this, &func_808A0920);
+        this->dyna.actor.draw = &BgMjin_Draw;
+    }
+}
+
+static void func_808A0920(BgMjin* this, GlobalContext* globalCtx)
+{
+
+}
+
+static void BgMjin_Update(BgMjin* this, GlobalContext* globalCtx)
+{
+    this->actionFunc(this, globalCtx);
+}
+
+static void BgMjin_Draw(BgMjin* this, GlobalContext* globalCtx)
+{
+    s32 objBankIndex;
+    u32 dlist;
+    GraphicsContext* gfxCtx = globalCtx->state.gfxCtx;
+    Gfx* gfxArr[4];
+    s32 pad;
+
+    func_800C6AC4(gfxArr, globalCtx->state.gfxCtx, "../z_bg_mjin.c", 250);
+    if (this->dyna.actor.params != 0)
+    {
+        objBankIndex = Object_GetIndex(&globalCtx->objectCtx, objectTbl[this->dyna.actor.params - 1]);
+        if (objBankIndex >= 0)
+        {
+            gSegments[6] = PHYSICAL_TO_VIRTUAL(globalCtx->objectCtx.status[objBankIndex].segment);
+        }
+        gSPSegment(gfxCtx->polyOpa.p++, 0x08, SEGMENTED_TO_VIRTUAL(&D_06000000));
+        dlist = &D_06000330;
+    }
+    else
+    {
+        dlist = &D_06000140;
+    }
+    func_80093D18(globalCtx->state.gfxCtx);
+    gSPMatrix(gfxCtx->polyOpa.p++, Matrix_NewMtx(globalCtx->state.gfxCtx, "../z_bg_mjin.c", 285), G_MTX_NOPUSH | G_MTX_MODELVIEW | G_MTX_LOAD);
+    gSPDisplayList(gfxCtx->polyOpa.p++, dlist);
+    func_800C6B54(gfxArr, globalCtx->state.gfxCtx, "../z_bg_mjin.c", 288);
+}

src/overlays/actors/ovl_Bg_Mjin/z_bg_mjin.h

@@ -0,0 +1,16 @@
+#ifndef _Z_BG_MJIN_H_
+#define _Z_BG_MJIN_H_
+
+#include <ultra64.h>
+#include <global.h>
+
+typedef struct
+{
+    /* 0x0000 */ DynaPolyActor dyna;
+    /* 0x0164 */ s8 objBankIndex;
+    /* 0x0168 */ ActorFunc actionFunc;
+} BgMjin; // size = 0x016C
+
+extern const ActorInit Bg_Mjin_InitVars;
+
+#endif