d_bg_s (#159)

* wip

* d_bg_s

* most of d_bg_s

* small cleanup

* clang

* fixes

19 files changed, 780 insertions, 295 deletions

diff --git a/include/d/bg/d_bg_pc.h b/include/d/bg/d_bg_pc.h
index 863737a92b..b1f91e96c2 100644
--- a/include/d/bg/d_bg_pc.h
+++ b/include/d/bg/d_bg_pc.h
@@ -3,4 +3,20 @@
 
 #include "dolphin/types.h"
 
+struct sBgPc {
+    /* 0x00 */ u32 code0;
+    /* 0x04 */ u32 code1;
+    /* 0x08 */ u32 code2;
+    /* 0x0C */ u32 code3;
+    /* 0x10 */ u32 code4;
+};  // Size: 0x14
+
+class dBgPc {
+public:
+    void setCode(sBgPc&);
+
+private:
+    /* 0x0 */ sBgPc m_code;
+};
+
 #endif /* D_BG_D_BG_PC_H */
diff --git a/include/d/bg/d_bg_plc.h b/include/d/bg/d_bg_plc.h
index 9710355ed6..ed0c55085f 100644
--- a/include/d/bg/d_bg_plc.h
+++ b/include/d/bg/d_bg_plc.h
@@ -1,6 +1,30 @@
 #ifndef D_BG_D_BG_PLC_H
 #define D_BG_D_BG_PLC_H
 
+#include "d/bg/d_bg_pc.h"
 #include "dolphin/types.h"
 
+enum {
+    /* 0x14 */ ZELDA_CODE_SIZE = 0x14
+};
+
+struct PLC {
+    /* 0x0 */ u32 magic;
+    /* 0x4 */ u16 m_code_size;
+    /* 0x6 */ u16 m_num;
+    // ...
+};
+
+class dBgPlc {
+public:
+    /* 80074074 */ dBgPlc();
+    /* 80074080 */ ~dBgPlc();
+    /* 800740BC */ void setBase(void*);
+    /* 800740C4 */ void getCode(int, sBgPc**) const;
+    /* 800740DC */ void getGrpCode(int) const;
+
+private:
+    /* 0x00 */ void* m_base;
+};
+
 #endif /* D_BG_D_BG_PLC_H */
diff --git a/include/d/bg/d_bg_s.h b/include/d/bg/d_bg_s.h
index 0b759c8198..0f8b51946b 100644
--- a/include/d/bg/d_bg_s.h
+++ b/include/d/bg/d_bg_s.h
@@ -8,64 +8,52 @@
 #include "dolphin/types.h"
 #include "f_op/f_op_actor.h"
 
-struct cBgW_BgId {
-    /* 802681C8 */ void Release();
-    /* 802681D4 */ void ChkUsed() const;
-};
-
 class cBgS_ChkElm {
-private:
-    /* 0x00 */ dBgW_Base* bgw_base_pointer;
-    /* 0x04 */ u8 used;
-    /* 0x05 */ u8 padding[3];
+public:
+    /* 0x00 */ dBgW_Base* m_bgw_base_ptr;
+    /* 0x04 */ bool m_used;
     /* 0x08 */ u32 field_0x8;
-    /* 0x0C */ void* actor_pointer;
+    /* 0x0C */ fopAc_ac_c* m_actor_ptr;
     /* 0x10 vtable */
+
 public:
-    cBgS_ChkElm(void) { this->Init(); }
-    virtual ~cBgS_ChkElm() {}
+    cBgS_ChkElm() { this->Init(); }
     void Init();
-    virtual void Regist2(dBgW_Base*, unsigned int, void*);
     void Release();
-};  // Size = 0x14
+
+    virtual ~cBgS_ChkElm() {}
+    virtual void Regist2(dBgW_Base*, unsigned int, void*);
+
+    bool ChkUsed() const { return m_used; }
+};  // Size: 0x14
 
 STATIC_ASSERT(sizeof(cBgS_ChkElm) == 0x14);
 
 class cBgS {
-private:
-    /* 0x0000 */ cBgS_ChkElm cbgs_elements[256];
+public:
+    /* 0x0000 */ cBgS_ChkElm m_chk_element[256];
     /* 0x1400 vtable */
+
 public:
     cBgS() {}
-    virtual ~cBgS() {}
-    void Regist(dBgW_Base*, unsigned int, void*);
+    bool Regist(dBgW_Base*, unsigned int, void*);
     void Release(dBgW_Base*);
-    virtual void Ct();
-    virtual void Dt();
-    void LineCross(cBgS_LinChk*);
-    void GroundCross(cBgS_GndChk*);
-    void ConvDzb(void*);
-    void GetActorPointer(int) const;
-    void GetBgWBasePointer(cBgS_PolyInfo const&) const;
-    void ChkPolySafe(cBgS_PolyInfo const&);
-    void GetGrpRoomId(cBgS_PolyInfo const&) const;
-    void GetTriPla(cBgS_PolyInfo const&, cM3dGPla*) const;
-    void GetTriPnt(cBgS_PolyInfo const&, cXyz*, cXyz*, cXyz*) const;
+    bool LineCross(cBgS_LinChk*);
+    f32 GroundCross(cBgS_GndChk*);
+    static void ConvDzb(void*);
+    fopAc_ac_c* GetActorPointer(int) const;
+    dBgW_Base* GetBgWBasePointer(cBgS_PolyInfo const&) const;
+    bool ChkPolySafe(cBgS_PolyInfo const&);
+    s32 GetGrpRoomId(cBgS_PolyInfo const&) const;
+    bool GetTriPla(cBgS_PolyInfo const&, cM3dGPla*) const;
+    bool GetTriPnt(cBgS_PolyInfo const&, cXyz*, cXyz*, cXyz*) const;
     void ShdwDraw(cBgS_ShdwDraw*);
-    void GetGrpInf(cBgS_PolyInfo const&) const;
-};  // Size = 0x1404
+    u32 GetGrpInf(cBgS_PolyInfo const&) const;
 
-class dBgS_HIO {
-    /* 0x00 */ u8 vtable[4];
-    /* 0x04 */ u8 field_0x4[2];
-    /* 0x06 */ u16 field_0x6;
-    /* 0x08 */ u16 field_0x8;
-    /* 0x0A */ u8 field_0xa[2];
-    /* 0x0C */ cXyz field_0xc;
-    /* 0x18 */ cXyz field_0x18;
-    /* 0x24 */ cXyz field_0x24;
-    /* 0x30 */ u8 field_0x30[4];
-};
+    virtual ~cBgS() {}
+    virtual void Ct();
+    virtual void Dt();
+};  // Size: 0x1404
 
 class dBgS_Acch;
 
@@ -77,44 +65,45 @@ public:
     void Dt();
     void ClrMoveFlag();
     void Move();
-    void Regist(dBgW_Base*, fopAc_ac_c*);
-    void ChkMoveBG(cBgS_PolyInfo const&);
-    void ChkMoveBG_NoDABg(cBgS_PolyInfo const&);
-    void GetExitId(cBgS_PolyInfo const&);
-    void GetPolyColor(cBgS_PolyInfo const&);
-    void GetHorseNoEntry(cBgS_PolyInfo const&);
-    void GetSpecialCode(cBgS_PolyInfo const&);
-    void GetMagnetCode(cBgS_PolyInfo const&);
-    void GetMonkeyBarsCode(cBgS_PolyInfo const&);
-    void GetUnderwaterRoofCode(cBgS_PolyInfo const&);
-    void GetWallCode(cBgS_PolyInfo const&);
-    void GetPolyAtt0(cBgS_PolyInfo const&);
-    void GetPolyAtt1(cBgS_PolyInfo const&);
-    void GetGroundCode(cBgS_PolyInfo const&);
-    void GetCamMoveBG(cBgS_PolyInfo const&);
-    void GetRoomCamId(cBgS_PolyInfo const&);
-    void GetRoomPathId(cBgS_PolyInfo const&);
-    void GetRoomPathPntNo(cBgS_PolyInfo const&);
-    void GetGrpSoundId(cBgS_PolyInfo const&);
-    void ChkGrpInf(cBgS_PolyInfo const&, u32);
-    void GetRoomId(cBgS_PolyInfo const&);
-    void GetPolyAttackThrough(cBgS_PolyInfo const&);
-    void ChkPolyHSStick(cBgS_PolyInfo const&);
+    bool Regist(dBgW_Base*, fopAc_ac_c*);
+    bool ChkMoveBG(cBgS_PolyInfo const&);
+    bool ChkMoveBG_NoDABg(cBgS_PolyInfo const&);
+    s32 GetExitId(cBgS_PolyInfo const&);
+    s32 GetPolyColor(cBgS_PolyInfo const&);
+    bool GetHorseNoEntry(cBgS_PolyInfo const&);
+    bool GetSpecialCode(cBgS_PolyInfo const&);
+    bool GetMagnetCode(cBgS_PolyInfo const&);
+    bool GetMonkeyBarsCode(cBgS_PolyInfo const&);
+    bool GetUnderwaterRoofCode(cBgS_PolyInfo const&);
+    bool GetWallCode(cBgS_PolyInfo const&);
+    bool GetPolyAtt0(cBgS_PolyInfo const&);
+    bool GetPolyAtt1(cBgS_PolyInfo const&);
+    bool GetGroundCode(cBgS_PolyInfo const&);
+    s32 GetCamMoveBG(cBgS_PolyInfo const&);
+    s32 GetRoomCamId(cBgS_PolyInfo const&);
+    s32 GetRoomPathId(cBgS_PolyInfo const&);
+    s32 GetRoomPathPntNo(cBgS_PolyInfo const&);
+    s32 GetGrpSoundId(cBgS_PolyInfo const&);
+    u32 ChkGrpInf(cBgS_PolyInfo const&, u32);
+    s32 GetRoomId(cBgS_PolyInfo const&);
+    bool GetPolyAttackThrough(cBgS_PolyInfo const&);
+    bool ChkPolyHSStick(cBgS_PolyInfo const&);
     void WallCorrect(dBgS_Acch*);
     void WallCorrectSort(dBgS_Acch*);
-    void RoofChk(dBgS_RoofChk*);
-    void SplGrpChk(dBgS_SplGrpChk*);
+    f32 RoofChk(dBgS_RoofChk*);
+    bool SplGrpChk(dBgS_SplGrpChk*);
     void SphChk(dBgS_SphChk*, void*);
     void MoveBgCrrPos(cBgS_PolyInfo const&, bool, cXyz*, csXyz*, csXyz*, bool, bool);
     void MoveBgTransPos(cBgS_PolyInfo const&, bool, cXyz*, csXyz*, csXyz*);
     void MoveBgMatrixCrrPos(cBgS_PolyInfo const&, bool, cXyz*, csXyz*, csXyz*);
     void RideCallBack(cBgS_PolyInfo const&, fopAc_ac_c*);
     void ArrowStickCallBack(cBgS_PolyInfo const&, fopAc_ac_c*, cXyz&);
-    void PushPullCallBack(cBgS_PolyInfo const&, fopAc_ac_c*, s16, dBgW_Base::PushPullLabel);
+    bool PushPullCallBack(cBgS_PolyInfo const&, fopAc_ac_c*, s16, dBgW_Base::PushPullLabel);
+
+    bool WaterChk(dBgS_SplGrpChk* chk) { return SplGrpChk(chk); }
+};  // Size: 0x1404
 
-private:
-    // /* 0x0000 */ cBgS cbgs;
-    // /* 0x1400 */ void* vtable;
-};
+bool dBgS_CheckBGroundPoly(cBgS_PolyInfo const&);
+bool dBgS_CheckBWallPoly(cBgS_PolyInfo const&);
 
 #endif /* D_BG_D_BG_S_H */
diff --git a/include/d/bg/d_bg_s_acch.h b/include/d/bg/d_bg_s_acch.h
index b0e2facd96..a1d6f5dc10 100644
--- a/include/d/bg/d_bg_s_acch.h
+++ b/include/d/bg/d_bg_s_acch.h
@@ -14,33 +14,66 @@
 #include "dolphin/types.h"
 //#include "d/bg/d_bg_s.h"
 
-class dBgS_AcchCir {
+class dBgS_AcchCir : public cBgS_PolyInfo {
+private:
+    /* 0x10 */ u32 m_flags;
+    /* 0x14 */ cM3dGCir m_cir;
+    /* 0x28 */ f32 m_wall_rr;
+    /* 0x2C */ f32 field_0x2c;
+    /* 0x30 */ f32 m_wall_h;
+    /* 0x34 */ f32 m_wall_r;
+    /* 0x38 */ f32 m_wall_h_direct;
+    /* 0x3C */ s16 m_wall_angle_y;
+
 public:
+    enum {
+        /* 0x2 */ WALL_HIT = 2,
+        /* 0x4 */ WALL_H_DIRECT = 4,
+    };
+
     /* 80075EAC */ dBgS_AcchCir();
     /* 80075F14 */ void ClrWallHit();
     /* 80075F40 */ void SetWallR(f32);
     /* 80075F48 */ void CalcWallRR();
     /* 80075F58 */ void SetWall(f32, f32);
     /* 80075F80 */ void SetWallHDirect(f32);
-    /* 80077414 */ ~dBgS_AcchCir();
 
-private:
-    /* 0x00 */ cBgS_PolyInfo mPolyInfo;
-    /* 0x10 */ int mWallHit;
-    /* 0x14 */ cM3dGCir m3DGCir;
-    /* 0x28 */ float mWallRR;
-    /* 0x2C */ float field_0x2c;
-    /* 0x30 */ float mWallH;
-    /* 0x34 */ float mWallR;
-    /* 0x38 */ float mWallHDirect;
-    /* 0x3C */ s16 mWallAngleY;
-    /* 0x3E */ u8 padding[2];
+    /* 80077414 */ virtual ~dBgS_AcchCir();
+
+    f32 GetWallH() { return m_wall_h; }
+    f32 GetWallR() { return m_wall_r; }
+    void SetWallH(f32 h) { m_wall_h = h; }
+    void ClrWallHDirect() { m_flags &= ~WALL_H_DIRECT; }
+    bool ChkWallHit() { return m_flags & WALL_HIT; }
+
+    void SetCir(cXyz& pos) { m_cir.Set(pos.x, pos.z, pos.y + GetWallH(), m_wall_r); }
 };
 
 class dBgS;
-class dBgS_Acch {
+class dBgS_Acch : public cBgS_Chk, public dBgS_Chk {
 public:
-    /* 80075F94 */ ~dBgS_Acch();
+    enum {
+        /* 0x000002 */ GRND_NONE = (1 << 1),
+        /* 0x000004 */ WALL_NONE = (1 << 2),
+        /* 0x000008 */ ROOF_NONE = (1 << 3),
+        /* 0x000010 */ WALL_HIT = (1 << 4),
+        /* 0x000020 */ GROUND_HIT = (1 << 5),
+        /* 0x000040 */ GROUND_FIND = (1 << 6),
+        /* 0x000080 */ GROUND_LANDING = (1 << 7),
+        /* 0x000100 */ GROUND_AWAY = (1 << 8),
+        /* 0x000200 */ ROOF_HIT = (1 << 9),
+        /* 0x000800 */ WATER_HIT = (1 << 11),
+        /* 0x001000 */ WATER_IN = (1 << 12),
+        /* 0x002000 */ LINE_CHECK = (1 << 13),
+        /* 0x004000 */ LINE_CHECK_NONE = (1 << 14),
+        /* 0x008000 */ CLR_SPEED_Y = (1 << 15),
+        /* 0x010000 */ LINE_CHECK_HIT = (1 << 16),
+        /* 0x100000 */ MOVE_BG_ONLY = (1 << 20),
+        /* 0x200000 */ GND_THIN_CELLING_OFF = (1 << 21),
+        /* 0x400000 */ WALL_SORT = (1 << 22),
+        /* 0x800000 */ LINE_DOWN = (1 << 23),
+    };
+
     /* 800760A0 */ dBgS_Acch();
     /* 800761CC */ void Init();
     /* 80076288 */ void Set(fopAc_ac_c*, int, dBgS_AcchCir*);
@@ -50,14 +83,14 @@ public:
     /* 8007654C */ void GroundRoofProc(dBgS&);
     /* 80076624 */ void LineCheck(dBgS&);
     /* 80076AAC */ void CrrPos(dBgS&);
-    /* 80076F84 */ void GetWallAllR();
+    /* 80076F84 */ f32 GetWallAllR();
     /* 80076FC0 */ void SetWallCir();
     /* 8007703C */ void CalcWallBmdCyl();
     /* 80077114 */ void SetGroundUpY(f32);
-    /* 80077128 */ void GetWallAllLowH();
-    /* 80077178 */ void GetWallAllLowH_R();
-    /* 800771E4 */ void GetSpeedY();
-    /* 80077200 */ void GetWallAddY(Vec&);
+    /* 80077128 */ f32 GetWallAllLowH();
+    /* 80077178 */ f32 GetWallAllLowH_R();
+    /* 800771E4 */ f32 GetSpeedY();
+    /* 80077200 */ f32 GetWallAddY(Vec&);
     /* 80077278 */ void SetNowActorInfo(int, void*, unsigned int);
     /* 80077288 */ void SetWallPolyIndex(int, int);
     /* 800772E8 */ void CalcMovePosWork();
@@ -66,56 +99,90 @@ public:
     /* 800773A4 */ void ClrMoveBGOnly();
     /* 800773C0 */ void SetGndThinCellingOff();
     /* 800773D0 */ void ClrGndThinCellingOff();
-    /* 800773E0 */ void ChkGndThinCellingOff();
+    /* 800773E0 */ bool ChkGndThinCellingOff();
     /* 800773EC */ void OnWallSort();
-    /* 800773FC */ void ChkWallSort();
-    /* 80077408 */ void ChkLineDown();
-    /* 800D00D0 */ void ChkRoofHit() const;
+    /* 800773FC */ bool ChkWallSort();
+    /* 80077408 */ bool ChkLineDown();
+    /* 800D00D0 */ bool ChkRoofHit() const;
     /* 800D00DC */ void ClrGroundHit();
-    /* 80141404 */ void ChkGroundHit() const;
+    /* 80141404 */ bool ChkGroundHit() const;
 
-    float GetGroundH() const { return mGroundH; }
+    /* 80075F94 */ virtual ~dBgS_Acch();
 
-private:
-    /* 0x000 */ cBgS_Chk field_0x000;
-    /* 0x014 */ dBgS_Chk field_0x014;
-    /* 0x02C */ int field_0x2c;
-    /* 0x030 */ cXyz* mPos;
-    /* 0x034 */ cXyz* mOldPos;
-    /* 0x038 */ cXyz* mSpeed;
-    /* 0x03C */ csXyz* mAngle;
-    /* 0x040 */ csXyz* mShapeAngle;
-    /* 0x044 */ cM3dGLin field_0x44;
-    /* 0x060 */ cM3dGCyl mWallBmdCyl;
-    /* 0x078 */ int field_0x78;
+    cXyz* GetPos() { return pm_pos; }
+    cXyz* GetOldPos() { return pm_old_pos; }
+    f32 GetGroundH() const { return m_ground_h; }
+    void SetLin() { m_lin.SetStartEnd(*pm_old_pos, *pm_pos); }
+    bool ChkGroundFind() { return m_flags & GROUND_FIND; }
+    bool ChkGroundHit() { return m_flags & GROUND_HIT; }
+    void ClrGroundLanding() { m_flags &= ~GROUND_LANDING; }
+    void ClrGroundAway() { m_flags &= ~GROUND_AWAY; }
+    void ClrWallHit() { m_flags &= ~WALL_HIT; }
+    void SetRoofNone() { m_flags |= ROOF_NONE; }
+    void SetRoofHit() { m_flags |= ROOF_HIT; }
+    bool ChkWallHit() { return m_flags & WALL_HIT; }
+    void OffLineCheckHit() { m_flags &= ~LINE_CHECK_HIT; }
+    bool ChkLineCheckNone() { return m_flags & LINE_CHECK_NONE; }
+    bool ChkLineCheck() { return m_flags & LINE_CHECK; }
+    void ClrRoofHit() { m_flags &= ~ROOF_HIT; }
+    void ClrWaterHit() { m_flags &= ~WATER_HIT; }
+    void SetWaterHit() { m_flags |= WATER_HIT; }
+    void ClrWaterIn() { m_flags &= ~WATER_IN; }
+    void SetWaterIn() { m_flags |= WATER_IN; }
+    void ClrGroundFind() { m_flags &= ~GROUND_FIND; }
+    u32 MaskRoofHit() { return m_flags & ROOF_HIT; }
+    bool ChkRoofHit() { return MaskRoofHit(); }
+    bool ChkClrSpeedY() { return m_flags & CLR_SPEED_Y; }
+    void SetGroundFind() { m_flags |= GROUND_FIND; }
+    void SetGroundHit() { m_flags |= GROUND_HIT; }
+    void SetGroundLanding() { m_flags |= GROUND_LANDING; }
+    void SetGroundAway() { m_flags |= GROUND_AWAY; }
+
+    // inline dupe
+    void i_ClrGroundHit() { m_flags &= ~GROUND_HIT; }
+
+public:
+    /* 0x02C */ u32 m_flags;
+    /* 0x030 */ cXyz* pm_pos;
+    /* 0x034 */ cXyz* pm_old_pos;
+    /* 0x038 */ cXyz* pm_speed;
+    /* 0x03C */ csXyz* pm_angle;
+    /* 0x040 */ csXyz* pm_shape_angle;
+    /* 0x044 */ cM3dGLin m_lin;
+    /* 0x060 */ cM3dGCyl m_wall_cyl;
+    /* 0x078 */ int m_bg_index;
     /* 0x07C */ void* field_0x7c;
     /* 0x080 */ u32 field_0x80;
-    /* 0x084 */ fopAc_ac_c* mMyAc;
+    /* 0x084 */ fopAc_ac_c* m_my_ac;
     /* 0x088 */ int m_tbl_size;
     /* 0x08C */ dBgS_AcchCir* field_0x8c;
-    /* 0x090 */ float field_0x90;
-    /* 0x094 */ float field_0x94;
-    /* 0x098 */ float mGroundH;
-    /* 0x09C */ float field_0x9c;
+    /* 0x090 */ f32 field_0x90;
+    /* 0x094 */ f32 field_0x94;
+    /* 0x098 */ f32 m_ground_h;
+    /* 0x09C */ f32 field_0x9c;
     /* 0x0A0 */ cM3dGPla field_0xa0;
-    /* 0x0B4 */ u8 field_0xb4[4];
-    /* 0x0B8 */ float field_0xb8;
-    /* 0x0BC */ float field_0xbc;
-    /* 0x0C0 */ u8 field_0xc0[4];
-    /* 0x0C4 */ float mRoofHeight;
-    /* 0x0C8 */ float mRoofCrrHeight;
-    /* 0x0CC */ float field_0xcc;
-    /* 0x0D0 */ float mWaterCheckOffset;
+    /* 0x0B4 */ u8 field_0xb4;
+    /* 0x0B8 */ f32 field_0xb8;
+    /* 0x0BC */ f32 field_0xbc;
+    /* 0x0C0 */ u8 field_0xc0;
+    /* 0x0C4 */ f32 m_roof_height;
+    /* 0x0C8 */ f32 m_roof_crr_height;
+    /* 0x0CC */ f32 field_0xcc;
+    /* 0x0D0 */ f32 m_wtr_chk_offset;
     /* 0x0D4 */ int field_0xd4;
-    /* 0x0D8 */ float field_0xd8;
-    /* 0x0DC */ dBgS_GndChk mGndChk;
-    /* 0x130 */ dBgS_RoofChk mRoofChk;
-    /* 0x180 */ dBgS_WtrChk mWtrChk;
-    /* 0x1D4 */ u8 mWtrChkMode;
+    /* 0x0D8 */ f32 field_0xd8;
+    /* 0x0DC */ dBgS_GndChk m_gnd;
+    /* 0x130 */ dBgS_RoofChk m_roof;
+    /* 0x180 */ dBgS_WtrChk m_wtr;
+    /* 0x1D4 */ u8 m_wtr_mode;
 };
 
 class dBgS_LinkAcch : public dBgS_Acch {
-    /* 80140F30 */ ~dBgS_LinkAcch();
+    /* 80140F30 */ virtual ~dBgS_LinkAcch();
+};
+
+class dBgS_ObjAcch : public dBgS_Acch {
+    /* 80BB336C */ virtual ~dBgS_ObjAcch();
 };
 
 #endif /* D_BG_D_BG_S_ACCH_H */
diff --git a/include/d/bg/d_bg_s_chk.h b/include/d/bg/d_bg_s_chk.h
index 549b8c2eed..fb0a238abb 100644
--- a/include/d/bg/d_bg_s_chk.h
+++ b/include/d/bg/d_bg_s_chk.h
@@ -5,16 +5,13 @@
 #include "d/bg/d_bg_s_poly_pass_chk.h"
 #include "dolphin/types.h"
 
-class dBgS_Chk {
+class dBgS_Chk : public dBgS_PolyPassChk, public dBgS_GrpPassChk {
 public:
     /* 8007749C */ dBgS_Chk();
-    /* 800774E8 */ ~dBgS_Chk();
-    /* 80077560 */ void GetPolyPassChkInfo();
-    /* 80077564 */ void GetGrpPassChkInfo();
+    /* 80077560 */ cBgS_PolyPassChk* GetPolyPassChkInfo();
+    /* 80077564 */ cBgS_GrpPassChk* GetGrpPassChkInfo();
 
-private:
-    /* 0x000 */ dBgS_PolyPassChk mPolyPassChkInfo;
-    /* 0x010 */ dBgS_GrpPassChk mGrpPassChkInfo;
-};  // Size = 0x18
+    /* 800774E8 */ virtual ~dBgS_Chk();
+};  // Size: 0x18
 
 #endif /* D_BG_D_BG_S_CHK_H */
diff --git a/include/d/bg/d_bg_s_gnd_chk.h b/include/d/bg/d_bg_s_gnd_chk.h
index bdd5831102..5087082ca8 100644
--- a/include/d/bg/d_bg_s_gnd_chk.h
+++ b/include/d/bg/d_bg_s_gnd_chk.h
@@ -5,21 +5,55 @@
 #include "d/bg/d_bg_s_chk.h"
 #include "dolphin/types.h"
 
-class dBgS_GndChk : public cBgS_GndChk {
+class dBgS_GndChk : public cBgS_GndChk, public dBgS_Chk {
 public:
     /* 8007757C */ dBgS_GndChk();
-    virtual void temp();  // temp to build OK
     /* 800775F0 */ virtual ~dBgS_GndChk();
+};  // Size: 0x54
 
-private:
-    /* 0x3C */ dBgS_Chk mChk;
-};  // Size = 0x54
-
-class dBgS_LinkGndChk : dBgS_GndChk {
-    virtual void temp();  // temp to build OK
+class dBgS_LinkGndChk : public dBgS_GndChk {
+public:
     /* 80140EB8 */ virtual ~dBgS_LinkGndChk();
 };
 
-class dBgS_ObjGndChk : dBgS_GndChk {};
+class dBgS_ObjGndChk : public dBgS_GndChk {
+public:
+    dBgS_ObjGndChk() { SetObj(); }
+
+    /* 8001E020 */ virtual ~dBgS_ObjGndChk();
+};
+
+class dBgS_ObjGndChk_Wtr : public dBgS_ObjGndChk {
+public:
+    /* 80077678 */ dBgS_ObjGndChk_Wtr();
+
+    /* 80077710 */ virtual ~dBgS_ObjGndChk_Wtr();
+};
+
+class dBgS_ObjGndChk_Spl : public dBgS_ObjGndChk {
+public:
+    /* 800777B0 */ dBgS_ObjGndChk_Spl();
+
+    /* 80077848 */ virtual ~dBgS_ObjGndChk_Spl();
+};
+
+class dBgS_ObjGndChk_All : public dBgS_ObjGndChk {
+public:
+    /* 800778E8 */ virtual ~dBgS_ObjGndChk_All();
+};
+
+class dBgS_CamGndChk : public dBgS_GndChk {
+public:
+    dBgS_CamGndChk() { SetCam(); }
+
+    /* 80077988 */ virtual ~dBgS_CamGndChk();
+};
+
+class dBgS_CamGndChk_Wtr : public dBgS_CamGndChk {
+public:
+    /* 80077A00 */ dBgS_CamGndChk_Wtr();
+
+    /* 80077A98 */ virtual ~dBgS_CamGndChk_Wtr();
+};
 
 #endif /* D_BG_D_BG_S_GND_CHK_H */
diff --git a/include/d/bg/d_bg_s_grp_pass_chk.h b/include/d/bg/d_bg_s_grp_pass_chk.h
index eb5e06d579..5d426af4cc 100644
--- a/include/d/bg/d_bg_s_grp_pass_chk.h
+++ b/include/d/bg/d_bg_s_grp_pass_chk.h
@@ -1,22 +1,27 @@
 #ifndef D_BG_D_BG_S_GRP_PASS_CHK_H
 #define D_BG_D_BG_S_GRP_PASS_CHK_H
 
+#include "SSystem/SComponent/c_bg_s_chk.h"
 #include "dolphin/types.h"
 
-class cBgS_GrpPassChk {
-public:
-    ~cBgS_GrpPassChk();
-
-    void* vtable;
-};
-
 class dBgS_GrpPassChk : public cBgS_GrpPassChk {
 public:
+    enum {
+        /* 0x1 */ NORMAL_GRP = 1,
+        /* 0x2 */ WATER_GRP
+    };
+
     /* 80077BA0 */ dBgS_GrpPassChk();
-    /* 80077BC4 */ ~dBgS_GrpPassChk();
+
+    /* 80077BC4 */ virtual ~dBgS_GrpPassChk();
+
+    void OnWaterGrp() { mGrp |= WATER_GRP; }
+    void OnSpl() { mGrp |= WATER_GRP; }
+    void OnNormalGrp() { mGrp |= NORMAL_GRP; }
+    void OffNormalGrp() { mGrp &= ~NORMAL_GRP; }
 
 private:
-    u32 mGrp;
+    /* 0x4 */ u32 mGrp;
 };
 
 #endif /* D_BG_D_BG_S_GRP_PASS_CHK_H */
diff --git a/include/d/bg/d_bg_s_lin_chk.h b/include/d/bg/d_bg_s_lin_chk.h
index 33029a5acb..b154496772 100644
--- a/include/d/bg/d_bg_s_lin_chk.h
+++ b/include/d/bg/d_bg_s_lin_chk.h
@@ -6,46 +6,78 @@
 #include "dolphin/types.h"
 #include "f_op/f_op_actor.h"
 
-class dBgS_LinChk {
+class dBgS_LinChk : public cBgS_LinChk, public dBgS_Chk {
 public:
     /* 80077C68 */ dBgS_LinChk();
-    /* 80077CDC */ ~dBgS_LinChk();
     /* 80077D64 */ void Set(cXyz const*, cXyz const*, fopAc_ac_c const*);
 
-private:
-    /* 0x00 */ cBgS_LinChk mLinChk;
-    /* 0x58 */ dBgS_Chk mChk;
+    /* 80077CDC */ virtual ~dBgS_LinChk();
+
+    /* 0x00 cBgS_LinChk */;
+    /* 0x58 dBgS_Chk */;
 };
 
-class dBgS_LinkLinChk : dBgS_LinChk {
+class dBgS_LinkLinChk : public dBgS_LinChk {
 public:
     /* 80078030 */ dBgS_LinkLinChk();
-    /* 8007808C */ ~dBgS_LinkLinChk();
+
+    /* 8007808C */ virtual ~dBgS_LinkLinChk();
 };
 
-class dBgS_RopeLinChk : dBgS_LinChk {
+class dBgS_RopeLinChk : public dBgS_LinChk {
+public:
     /* 8007838C */ dBgS_RopeLinChk();
-    /* 800783E8 */ ~dBgS_RopeLinChk();
+
+    /* 800783E8 */ virtual ~dBgS_RopeLinChk();
 };
 
-class dBgS_BoomerangLinChk : dBgS_LinChk {
+class dBgS_BoomerangLinChk : public dBgS_LinChk {
+public:
     /* 800782B8 */ dBgS_BoomerangLinChk();
-    /* 80078314 */ ~dBgS_BoomerangLinChk();
+
+    /* 80078314 */ virtual ~dBgS_BoomerangLinChk();
 };
 
-class dBgS_ArrowLinChk : dBgS_LinChk {
+class dBgS_ArrowLinChk : public dBgS_LinChk {
+public:
     /* 800781D8 */ dBgS_ArrowLinChk();
-    /* 80078240 */ ~dBgS_ArrowLinChk();
+
+    /* 80078240 */ virtual ~dBgS_ArrowLinChk();
 };
 
-class dBgS_ObjLinChk : dBgS_LinChk {
+class dBgS_ObjLinChk : public dBgS_LinChk {
+public:
     /* 80077F5C */ dBgS_ObjLinChk();
-    /* 80077FB8 */ ~dBgS_ObjLinChk();
+
+    /* 80077FB8 */ virtual ~dBgS_ObjLinChk();
 };
 
-class dBgS_BombLinChk : dBgS_LinChk {
+class dBgS_BombLinChk : public dBgS_LinChk {
+public:
     /* 80078104 */ dBgS_BombLinChk();
-    /* 80078160 */ ~dBgS_BombLinChk();
+
+    /* 80078160 */ virtual ~dBgS_BombLinChk();
+};
+
+class dBgS_HorseLinChk : public dBgS_LinChk {
+public:
+    /* 80078460 */ dBgS_HorseLinChk();
+
+    /* 800784BC */ virtual ~dBgS_HorseLinChk();
+};
+
+class dBgS_CamLinChk : public dBgS_LinChk {
+public:
+    /* 80077DA4 */ dBgS_CamLinChk();
+
+    /* 80077E00 */ virtual ~dBgS_CamLinChk();
+};
+
+class dBgS_CamLinChk_NorWtr : public dBgS_CamLinChk {
+public:
+    /* 80077E78 */ dBgS_CamLinChk_NorWtr();
+
+    /* 80077EE4 */ virtual ~dBgS_CamLinChk_NorWtr();
 };
 
 #endif /* D_BG_D_BG_S_LIN_CHK_H */
diff --git a/include/d/bg/d_bg_s_movebg_actor.h b/include/d/bg/d_bg_s_movebg_actor.h
index 3f588b15f3..2eacdec49e 100644
--- a/include/d/bg/d_bg_s_movebg_actor.h
+++ b/include/d/bg/d_bg_s_movebg_actor.h
@@ -1,6 +1,38 @@
 #ifndef D_BG_D_BG_S_MOVEBG_ACTOR_H
 #define D_BG_D_BG_S_MOVEBG_ACTOR_H
 
+#include "SSystem/SComponent/c_bg_s_poly_info.h"
+#include "d/bg/d_bg_w.h"
 #include "dolphin/types.h"
 
+class dBgW;
+typedef void (*MoveBGActor_SetFunc)(dBgW*, void*, cBgS_PolyInfo const&, bool, cXyz*, csXyz*,
+                                    csXyz*);
+
+class dBgS_MoveBgActor : public fopAc_ac_c {
+private:
+    /* 0x568 */ dBgW* field_0x568;
+    /* 0x56C */ Mtx field_0x56c;
+
+public:
+    /* 80078624 */ dBgS_MoveBgActor();
+    /* 800786C8 */ int MoveBGCreateHeap();
+    /* 800787BC */ int MoveBGCreate(char const*, int, MoveBGActor_SetFunc, u32, Mtx*);
+    /* 800788DC */ bool MoveBGDelete();
+    /* 80078950 */ bool MoveBGExecute();
+
+    /* 80078688 */ virtual s32 CreateHeap();
+    /* 80078690 */ virtual bool Create();
+    /* 80078698 */ virtual bool Execute(f32 (**)[3][4]);
+    /* 800786A0 */ virtual bool Draw();
+    /* 800786A8 */ virtual bool Delete();
+    /* 800786B0 */ virtual bool IsDelete();
+    /* 800786B8 */ virtual bool ToFore();
+    /* 800786C0 */ virtual bool ToBack();
+
+    static const char* m_name;
+    static int m_dzb_id;
+    static MoveBGActor_SetFunc m_set_func;
+};
+
 #endif /* D_BG_D_BG_S_MOVEBG_ACTOR_H */
diff --git a/include/d/bg/d_bg_s_poly_pass_chk.h b/include/d/bg/d_bg_s_poly_pass_chk.h
index 0fb5100aee..c5aff507f4 100644
--- a/include/d/bg/d_bg_s_poly_pass_chk.h
+++ b/include/d/bg/d_bg_s_poly_pass_chk.h
@@ -11,7 +11,6 @@ public:
 class dBgS_PolyPassChk : public cBgS_PolyPassChk {
 public:
     dBgS_PolyPassChk();
-    virtual void temp();  // temp to build OK, remove later
     virtual ~dBgS_PolyPassChk();
 
     bool ChkArrow() { return mArrow; }
diff --git a/include/d/bg/d_bg_s_roof_chk.h b/include/d/bg/d_bg_s_roof_chk.h
index 2fbdc6da07..78a4e64f33 100644
--- a/include/d/bg/d_bg_s_roof_chk.h
+++ b/include/d/bg/d_bg_s_roof_chk.h
@@ -7,25 +7,26 @@
 #include "d/bg/d_bg_s_chk.h"
 #include "dolphin/types.h"
 
-class dBgS_RoofChk {
+class dBgS_RoofChk : public cBgS_PolyInfo, public cBgS_Chk, public dBgS_Chk {
 public:
     /* 80078FF4 */ dBgS_RoofChk();
-    /* 80079090 */ ~dBgS_RoofChk();
     /* 80079124 */ void Init();
     /* 800B146C */ void SetPos(cXyz const&);
 
+    /* 80079090 */ virtual ~dBgS_RoofChk();
+
+    void SetNowY(f32 y) { mNowY = y; }
+    void i_SetPos(cXyz const& pos) { m_pos = pos; }
+
 private:
-    /* 0x00 */ cBgS_PolyInfo field_0x00;
-    /* 0x10 */ cBgS_Chk field_0x10;
-    /* 0x24 */ dBgS_Chk field_0x24;
     /* 0x3C */ cXyz m_pos;
     /* 0x48 */ int field_0x48;
-    /* 0x4C */ float mNowY;
-};  // Size = 0x50
+    /* 0x4C */ f32 mNowY;
+};  // Size: 0x50
 
 class dBgS_LinkRoofChk : dBgS_RoofChk {
 public:
-    /* 80140E40 */ ~dBgS_LinkRoofChk();
+    /* 80140E40 */ virtual ~dBgS_LinkRoofChk();
 };
 
 #endif /* D_BG_D_BG_S_ROOF_CHK_H */
diff --git a/include/d/bg/d_bg_s_sph_chk.h b/include/d/bg/d_bg_s_sph_chk.h
index 07ede4cc1e..6a5225ace1 100644
--- a/include/d/bg/d_bg_s_sph_chk.h
+++ b/include/d/bg/d_bg_s_sph_chk.h
@@ -1,6 +1,25 @@
 #ifndef D_BG_D_BG_S_SPH_CHK_H
 #define D_BG_D_BG_S_SPH_CHK_H
 
+#include "SSystem/SComponent/c_bg_s_poly_info.h"
+#include "SSystem/SComponent/c_m3d_g_pla.h"
+#include "SSystem/SComponent/c_m3d_g_sph.h"
+#include "d/bg/d_bg_s_chk.h"
 #include "dolphin/types.h"
 
+struct cBgD_Vtx_t;
+
+class dBgS_SphChk;
+typedef void* (*SphChk_Callback)(dBgS_SphChk*, cBgD_Vtx_t*, int, int, int, cM3dGPla*, void*);
+
+class dBgS_SphChk : public cM3dGSph, public cBgS_PolyInfo, public cBgS_Chk, public dBgS_Chk {
+public:
+    /* 80078A14 */ dBgS_SphChk();
+
+    /* 80078AC0 */ virtual ~dBgS_SphChk();
+
+private:
+    /* 0x50 */ SphChk_Callback mCallback;
+};
+
 #endif /* D_BG_D_BG_S_SPH_CHK_H */
diff --git a/include/d/bg/d_bg_s_spl_grp_chk.h b/include/d/bg/d_bg_s_spl_grp_chk.h
index 4fb3645b49..76d4f0212e 100644
--- a/include/d/bg/d_bg_s_spl_grp_chk.h
+++ b/include/d/bg/d_bg_s_spl_grp_chk.h
@@ -7,21 +7,33 @@
 #include "d/bg/d_bg_s_chk.h"
 #include "dolphin/types.h"
 
-class dBgS_SplGrpChk {
+class dBgS_SplGrpChk : public cBgS_PolyInfo, public cBgS_Chk, public dBgS_Chk {
 public:
+    enum {
+        /* 0x1 */ FIND = 1,
+        /* 0x2 */ IN = 2,
+        /* 0x4 */ MOVE_BG_ONLY = 4
+    };
+
     /* 80078B90 */ void Set(cXyz&, f32);
     /* 80078BB0 */ dBgS_SplGrpChk();
-    /* 80078C78 */ ~dBgS_SplGrpChk();
     /* 80078D0C */ void Init();
 
+    /* 80078C78 */ virtual ~dBgS_SplGrpChk();
+
+    void OffFind() { m_flags &= ~FIND; }
+    void OffIn() { m_flags &= ~IN; }
+    void OffMoveBGOnly() { m_flags &= ~MOVE_BG_ONLY; }
+    void OnMoveBGOnly() { m_flags |= MOVE_BG_ONLY; }
+    void SetHeight(f32 height) { m_height = height; }
+    f32 GetHeight() { return m_height; }
+    cXyz& GetPosP() { return m_ground; }
+
 private:
-    /* 0x00 */ cBgS_PolyInfo field_0x00;
-    /* 0x10 */ cBgS_Chk field_0x10;
-    /* 0x24 */ dBgS_Chk field_0x24;
     /* 0x3C */ cXyz m_ground;
-    /* 0x48 */ float mRoof;
-    /* 0x4C */ float mHeight;
-    /* 0x50 */ int field_0x50;
-};  // Size = 0x54
+    /* 0x48 */ f32 m_roof;
+    /* 0x4C */ f32 m_height;
+    /* 0x50 */ u32 m_flags;
+};  // Size: 0x54
 
 #endif /* D_BG_D_BG_S_SPL_GRP_CHK_H */
diff --git a/include/d/bg/d_bg_s_wtr_chk.h b/include/d/bg/d_bg_s_wtr_chk.h
index 79a6806bab..2ea0f5e51c 100644
--- a/include/d/bg/d_bg_s_wtr_chk.h
+++ b/include/d/bg/d_bg_s_wtr_chk.h
@@ -4,12 +4,11 @@
 #include "d/bg/d_bg_s_spl_grp_chk.h"
 #include "dolphin/types.h"
 
-class dBgS_WtrChk {
+class dBgS_WtrChk : public dBgS_SplGrpChk {
 public:
     /* 80079164 */ dBgS_WtrChk();
 
-private:
-    /* 0x00 */ dBgS_SplGrpChk mSplGrp;
-};  // Size = 0x54
+    /* 8001DF30 */ virtual ~dBgS_WtrChk();
+};  // Size: 0x54
 
 #endif /* D_BG_D_BG_S_WTR_CHK_H */
diff --git a/include/d/bg/d_bg_w.h b/include/d/bg/d_bg_w.h
index 8580ef0f94..121895ba9e 100644
--- a/include/d/bg/d_bg_w.h
+++ b/include/d/bg/d_bg_w.h
@@ -1,6 +1,7 @@
 #ifndef D_BG_D_BG_W_H
 #define D_BG_D_BG_W_H
 
+#include "JSystem/J3DGraphBase/J3DVertex.h"
 #include "SSystem/SComponent/c_bg_s_gnd_chk.h"
 #include "SSystem/SComponent/c_bg_s_lin_chk.h"
 #include "SSystem/SComponent/c_bg_s_poly_info.h"
@@ -8,81 +9,74 @@
 #include "d/bg/d_bg_s_acch.h"
 #include "d/bg/d_bg_s_grp_pass_chk.h"
 #include "d/bg/d_bg_s_poly_pass_chk.h"
+#include "d/bg/d_bg_w_base.h"
 #include "dolphin/types.h"
 #include "f_op/f_op_actor.h"
 
 struct dBgS_CaptPoly {};
 
-struct dBgS_SphChk {};
-
-struct cBgW_TriElm {
-    /* 800796F8 */ ~cBgW_TriElm();
+class cBgW_TriElm : public cM3dGPla {
+public:
     /* 80079754 */ cBgW_TriElm();
+
+    /* 800796F8 */ virtual ~cBgW_TriElm();
 };
 
-struct cBgW_RwgElm {
+class cBgW_RwgElm {
+private:
+    /* 0x0 */ u8 field_0x0[4];
+
+public:
     /* 800791C4 */ cBgW_RwgElm();
-    /* 800791D4 */ ~cBgW_RwgElm();
+
+    /* 800791D4 */ virtual ~cBgW_RwgElm();
 };
 
-struct cBgW_NodeTree {
+class cBgW_NodeTree : public cM3dGAab {
+public:
     /* 8007921C */ cBgW_NodeTree();
-    /* 80079238 */ ~cBgW_NodeTree();
+
+    /* 80079238 */ virtual ~cBgW_NodeTree();
 };
 
-struct cBgW_GrpElm {
-    /* 8007A184 */ ~cBgW_GrpElm();
+class cBgW_GrpElm : public cM3dGAab {
+public:
     /* 8007A1E4 */ cBgW_GrpElm();
-};
 
-struct cBgS_ShdwDraw {};
+    /* 8007A184 */ virtual ~cBgW_GrpElm();
+};
 
 struct cBgD_t {};
 
-struct cBgW {
+class cBgW : public dBgW_Base {
+public:
     /* 80079294 */ cBgW();
-    /* 8007933C */ ~cBgW();
     /* 800793A4 */ void FreeArea();
     /* 800793C4 */ void GlobalVtx();
     /* 80079484 */ void SetVtx();
-    /* 80079564 */ void CalcPlane();
     /* 80079668 */ void SetTri();
     /* 80079770 */ void BlckConnect(u16*, int*, int);
-    /* 800797BC */ void ClassifyPlane();
     /* 8007998C */ void MakeBlckTransMinMax(cXyz*, cXyz*);
     /* 800799E0 */ void MakeBlckMinMax(int, cXyz*, cXyz*);
     /* 80079A68 */ void MakeBlckBnd(int, cXyz*, cXyz*);
     /* 80079BDC */ void MakeNodeTreeRp(int);
     /* 80079CC4 */ void MakeNodeTreeGrpRp(int);
     /* 80079DF0 */ void MakeNodeTree();
-    /* 80079EEC */ void ChkMemoryError();
-    /* 80079F38 */ void Set(cBgD_t*, u32, f32 (*)[3][4]);
+    /* 80079F38 */ bool Set(cBgD_t*, u32, f32 (*)[3][4]);
     /* 8007A200 */ void RwgLineCheck(u16, cBgS_LinChk*);
     /* 8007A3A0 */ void LineCheckRp(cBgS_LinChk*, int);
     /* 8007A52C */ void LineCheckGrpRp(cBgS_LinChk*, int, int);
-    /* 8007A658 */ void LineCheck(cBgS_LinChk*);
     /* 8007A680 */ void RwgGroundCheckCommon(f32, u16, cBgS_GndChk*);
     /* 8007A774 */ void RwgGroundCheckGnd(u16, cBgS_GndChk*);
     /* 8007A824 */ void RwgGroundCheckWall(u16, cBgS_GndChk*);
     /* 8007A8F4 */ void GroundCrossRp(cBgS_GndChk*, int);
     /* 8007AA50 */ void GroundCrossGrpRp(cBgS_GndChk*, int, int);
-    /* 8007AB9C */ void GroundCross(cBgS_GndChk*);
     /* 8007ABC4 */ void CopyOldMtx();
     /* 8007AC10 */ void Move();
     /* 8007ADF0 */ void RwgShdwDraw(int, cBgS_ShdwDraw*);
     /* 8007AEA4 */ void ShdwDrawRp(cBgS_ShdwDraw*, int);
     /* 8007AFC0 */ void ShdwDrawGrpRp(cBgS_ShdwDraw*, int);
-    /* 8007B084 */ void ShdwDraw(cBgS_ShdwDraw*);
-    /* 8007B0A8 */ bool ChkPolyThrough(int, cBgS_PolyPassChk*);
-    /* 8007B0B0 */ void ChkShdwDrawThrough(int, cBgS_PolyPassChk*);
-    /* 8007B0DC */ bool ChkGrpThrough(int, cBgS_GrpPassChk*, int);
-    /* 8007B0E4 */ void GetGrpRoomIndex(cBgS_PolyInfo const&) const;
-    /* 8007B164 */ void GetBnd() const;
     /* 8007B17C */ void GetTrans(cXyz*) const;
-    /* 8007B1B4 */ void GetTriPnt(cBgS_PolyInfo const&, cXyz*, cXyz*, cXyz*) const;
-    /* 8007B240 */ void GetTopUnder(f32*, f32*) const;
-    /* 8007B270 */ void GetTriPla(cBgS_PolyInfo const&) const;
-    /* 8007B2B0 */ void GetGrpInf(cBgS_PolyInfo const&) const;
     /* 8007B2F4 */ void GetPolyInfId(int) const;
     /* 8007B30C */ void GetPolyInf0(int, u32, u32) const;
     /* 8007B360 */ void GetMaskPolyInf0_NoShift(int, u32) const;
@@ -90,104 +84,177 @@ struct cBgW {
     /* 8007B78C */ void GetMaskPolyInf1_NoShift(int, u32) const;
     /* 8007B824 */ void GetPolyInf2(int, u32, u32) const;
     /* 8007B930 */ void GetTriGrp(int) const;
-    /* 8007B948 */ void ChkNotReady() const;
-    /* 8007B958 */ void ChkLock() const;
-    /* 8007B964 */ void ChkMoveBg() const;
-};
 
-class dBgW_Base {
-public:
-    enum PushPullLabel {};
+    /* 8007933C */ virtual ~cBgW();
+    /* 80079EEC */ virtual void ChkMemoryError();
+    /* 8007B948 */ virtual void ChkNotReady() const;
+    /* 8007B958 */ virtual bool ChkLock() const;
+    /* 8007B964 */ virtual bool ChkMoveBg() const;
+    virtual u32 ChkMoveFlag() const = 0;
+    /* 8007B270 */ virtual void GetTriPla(cBgS_PolyInfo const&) const;
+    /* 8007B1B4 */ virtual bool GetTriPnt(cBgS_PolyInfo const&, cXyz*, cXyz*, cXyz*) const;
+    /* 8007B164 */ virtual void GetBnd() const;
+    /* 8007B2B0 */ virtual u32 GetGrpInf(cBgS_PolyInfo const&) const;
+    virtual void OffMoveFlag() = 0;
+    /* 8007B240 */ virtual void GetTopUnder(f32*, f32*) const;
+    /* 8007A658 */ virtual bool LineCheck(cBgS_LinChk*);
+    /* 8007AB9C */ virtual void GroundCross(cBgS_GndChk*);
+    /* 8007B084 */ virtual void ShdwDraw(cBgS_ShdwDraw*);
+    virtual void CaptPoly(dBgS_CaptPoly&) = 0;
+    virtual void WallCorrect(dBgS_Acch*) = 0;
+    virtual void WallCorrectSort(dBgS_Acch*) = 0;
+    virtual void RoofChk(dBgS_RoofChk*) = 0;
+    virtual void SplGrpChk(dBgS_SplGrpChk*) = 0;
+    virtual void SphChk(dBgS_SphChk*, void*) = 0;
+    /* 8007B0E4 */ virtual s32 GetGrpRoomIndex(cBgS_PolyInfo const&) const;
+    virtual s32 GetExitId(cBgS_PolyInfo const&) = 0;
+    virtual s32 GetPolyColor(cBgS_PolyInfo const&) = 0;
+    virtual bool GetHorseNoEntry(cBgS_PolyInfo const&) = 0;
+    virtual bool GetSpecialCode(cBgS_PolyInfo const&) = 0;
+    virtual void GetSpecialCode(int) = 0;
+    virtual bool GetMagnetCode(cBgS_PolyInfo const&) = 0;
+    virtual void GetPolyObjThrough(int) = 0;
+    virtual void GetPolyCamThrough(int) = 0;
+    virtual void GetPolyLinkThrough(int) = 0;
+    virtual void GetPolyArrowThrough(int) = 0;
+    virtual bool GetPolyHSStick(int) = 0;
+    virtual void GetPolyBoomerangThrough(int) = 0;
+    virtual void GetPolyRopeThrough(int) = 0;
+    virtual void GetPolyBombThrough(int) = 0;
+    virtual void GetShdwThrough(int) = 0;
+    virtual bool GetUnderwaterRoofCode(int) = 0;
+    virtual bool GetMonkeyBarsCode(cBgS_PolyInfo const&) = 0;
+    virtual bool GetWallCode(cBgS_PolyInfo const&) = 0;
+    virtual bool GetPolyAtt0(cBgS_PolyInfo const&) = 0;
+    virtual bool GetPolyAtt1(cBgS_PolyInfo const&) = 0;
+    virtual bool GetGroundCode(cBgS_PolyInfo const&) = 0;
+    virtual void GetIronBallThrough(int) = 0;
+    virtual u32 GetAttackThrough(int) = 0;
+    virtual s32 GetCamMoveBG(cBgS_PolyInfo const&) = 0;
+    virtual s32 GetRoomCamId(cBgS_PolyInfo const&) = 0;
+    virtual s32 GetRoomPathId(cBgS_PolyInfo const&) = 0;
+    virtual s32 GetRoomPathPntNo(cBgS_PolyInfo const&) = 0;
+    virtual void GetPolyGrpRoomInfId(cBgS_PolyInfo const&) = 0;
+    virtual s32 GetGrpSoundId(cBgS_PolyInfo const&) = 0;
+    virtual void CrrPos(cBgS_PolyInfo const&, void*, bool, cXyz*, csXyz*, csXyz*) = 0;
+    virtual void TransPos(cBgS_PolyInfo const&, void*, bool, cXyz*, csXyz*, csXyz*) = 0;
+    virtual void MatrixCrrPos(cBgS_PolyInfo const&, void*, bool, cXyz*, csXyz*, csXyz*) = 0;
+    /* 80079564 */ virtual void CalcPlane();
+    /* 800797BC */ virtual void ClassifyPlane();
+    /* 8007B0A8 */ virtual bool ChkPolyThrough(int, cBgS_PolyPassChk*);
+    /* 8007B0B0 */ virtual void ChkShdwDrawThrough(int, cBgS_PolyPassChk*);
+    /* 8007B0DC */ virtual bool ChkGrpThrough(int, cBgS_GrpPassChk*, int);
 
-    /* 8007E5A8 */ dBgW_Base();
-    /* 8007E640 */ ~dBgW_Base();
-    /* 8007E6D8 */ void CallRideCallBack(fopAc_ac_c*, fopAc_ac_c*);
-    /* 8007E6DC */ void CallArrowStickCallBack(fopAc_ac_c*, fopAc_ac_c*, cXyz&);
-    /* 80074AB4 */ void SetOldShapeAngleY(s16);
-    /* 8007E6E0 */ void CalcDiffShapeAngleY(s16);
+    u32 GetOldInvMtx(Mtx m) { return PSMTXInverse(m_inv_mtx, m); }
+    MtxP GetBaseMtxP() { return pm_base_mtx; }
 
-private:
-    u16 field_0x0;
-    u8 field_0x2[2];
-    void* field_0x4;
-    u8 field_0x8;
-    u8 field_0x9;
-    u8 field_0xa;
-    u8 field_0xb;
-    s16 field_0xc;
-    s16 field_0xe;
+public:
+    /* 0x18 */ MtxP pm_base_mtx;
+    /* 0x1C */ Mtx m_inv_mtx;
+    /* 0x4C */ Mtx field_0x4c;
+    /* 0x7C */ cXyz field_0x7c;
+    /* 0x88 */ u8 field_0x88;
+    /* 0x89 */ u8 field_0x89;
+    /* 0x8A */ u8 field_0x8a[6];
+    /* 0x90 */ u8 field_0x90;
+    /* 0x91 */ u8 field_0x91;
+    /* 0x92 */ u16 field_0x92;
+    /* 0x94 */ cBgW_TriElm* pm_tri;
+    /* 0x98 */ cBgW_RwgElm* pm_rwg;
+    /* 0x9C */ VertexPosition* pm_vtx_tbl;  // type not confirmed
+    /* 0xA0 */ void* pm_bgd;
+    /* 0xA4 */ void* field_0xa4;
+    /* 0xA8 */ cBgW_GrpElm* pm_grp;
+    /* 0xAC */ cBgW_NodeTree* pm_node_tree;
 };
 
-class dBgW {
+class dBgW;
+typedef void (*dBgW_RideCallback)(dBgW*, fopAc_ac_c*, fopAc_ac_c*);
+typedef void (*dBgW_ArrowStickCallback)(fopAc_ac_c*, fopAc_ac_c*, cXyz&);
+typedef void (*dBgW_CrrFunc)(dBgW*, void*, cBgS_PolyInfo const&, bool, cXyz*, csXyz*, csXyz*);
+
+class dBgW : public cBgW {
 public:
-    /* 8007B3AC */ void GetExitId(cBgS_PolyInfo const&);
-    /* 8007B3D8 */ void GetPolyColor(cBgS_PolyInfo const&);
-    /* 8007B404 */ void GetHorseNoEntry(cBgS_PolyInfo const&);
-    /* 8007B430 */ void GetSpecialCode(cBgS_PolyInfo const&);
-    /* 8007B460 */ void GetSpecialCode(int);
-    /* 8007B488 */ void GetMagnetCode(cBgS_PolyInfo const&);
-    /* 8007B4B4 */ void GetMonkeyBarsCode(cBgS_PolyInfo const&);
-    /* 8007B4E0 */ void GetPolyObjThrough(int);
-    /* 8007B504 */ void GetPolyCamThrough(int);
-    /* 8007B52C */ void GetPolyLinkThrough(int);
-    /* 8007B550 */ void GetPolyArrowThrough(int);
-    /* 8007B574 */ void GetPolyHSStick(int);
-    /* 8007B598 */ void GetPolyBoomerangThrough(int);
-    /* 8007B5BC */ void GetPolyRopeThrough(int);
-    /* 8007B5E0 */ void GetPolyBombThrough(int);
-    /* 8007B604 */ void GetShdwThrough(int);
-    /* 8007B630 */ void GetUnderwaterRoofCode(int);
-    /* 8007B6AC */ void GetLinkNo(cBgS_PolyInfo const&);
-    /* 8007B6D8 */ void GetWallCode(cBgS_PolyInfo const&);
-    /* 8007B704 */ void GetPolyAtt0(cBgS_PolyInfo const&);
-    /* 8007B734 */ void GetPolyAtt1(cBgS_PolyInfo const&);
-    /* 8007B760 */ void GetGroundCode(cBgS_PolyInfo const&);
-    /* 8007B7DC */ void GetIronBallThrough(int);
-    /* 8007B800 */ void GetAttackThrough(int);
-    /* 8007B87C */ void GetCamMoveBG(cBgS_PolyInfo const&);
-    /* 8007B8A8 */ void GetRoomCamId(cBgS_PolyInfo const&);
-    /* 8007B8D8 */ void GetRoomPathId(cBgS_PolyInfo const&);
-    /* 8007B904 */ void GetRoomPathPntNo(cBgS_PolyInfo const&);
     /* 8007B970 */ dBgW();
     /* 8007B9C0 */ void Move();
     /* 8007B9EC */ void positionWallCorrect(dBgS_Acch*, f32, cM3dGPla&, cXyz*, f32);
     /* 8007BA40 */ void RwgWallCorrect(dBgS_Acch*, u16);
     /* 8007C234 */ void WallCorrectRp(dBgS_Acch*, int);
     /* 8007C360 */ void WallCorrectGrpRp(dBgS_Acch*, int, int);
-    /* 8007C484 */ void WallCorrect(dBgS_Acch*);
     /* 8007C4AC */ void RwgWallCorrectSort(dBgS_Acch*, u16);
     /* 8007C714 */ void WallCorrectRpSort(dBgS_Acch*, int);
     /* 8007C808 */ void WallCorrectGrpRpSort(dBgS_Acch*, int, int);
-    /* 8007C910 */ void WallCorrectSort(dBgS_Acch*);
     /* 8007D0DC */ void RwgRoofChk(u16, dBgS_RoofChk*);
     /* 8007D208 */ void RoofChkRp(dBgS_RoofChk*, int);
     /* 8007D330 */ void RoofChkGrpRp(dBgS_RoofChk*, int, int);
-    /* 8007D470 */ void RoofChk(dBgS_RoofChk*);
     /* 8007D498 */ void RwgSplGrpChk(u16, dBgS_SplGrpChk*);
     /* 8007D5C4 */ void SplGrpChkRp(dBgS_SplGrpChk*, int);
     /* 8007D6F0 */ void SplGrpChkGrpRp(dBgS_SplGrpChk*, int, int);
-    /* 8007D830 */ void SplGrpChk(dBgS_SplGrpChk*);
     /* 8007D858 */ void RwgCaptPoly(int, dBgS_CaptPoly&);
     /* 8007D8E8 */ void CaptPolyRp(dBgS_CaptPoly&, int);
     /* 8007DA04 */ void CaptPolyGrpRp(dBgS_CaptPoly&, int, int);
-    /* 8007DAF8 */ void CaptPoly(dBgS_CaptPoly&);
     /* 8007DB20 */ void RwgSphChk(u16, dBgS_SphChk*, void*);
     /* 8007DC70 */ void SphChkRp(dBgS_SphChk*, void*, int);
     /* 8007DDE0 */ void SphChkGrpRp(dBgS_SphChk*, void*, int, int);
-    /* 8007DF00 */ void SphChk(dBgS_SphChk*, void*);
-    /* 8007DF28 */ void GetPolyGrpRoomInfId(cBgS_PolyInfo const&);
-    /* 8007DF58 */ void GetGrpSoundId(cBgS_PolyInfo const&);
-    /* 8007DF88 */ void CrrPos(cBgS_PolyInfo const&, void*, bool, cXyz*, csXyz*, csXyz*);
-    /* 8007DFC4 */ void TransPos(cBgS_PolyInfo const&, void*, bool, cXyz*, csXyz*, csXyz*);
-    /* 8007E000 */ void MatrixCrrPos(cBgS_PolyInfo const&, void*, bool, cXyz*, csXyz*, csXyz*);
-    /* 8007E02C */ void ChkPolyThrough(int, cBgS_PolyPassChk*);
-    /* 8007E360 */ void ChkShdwDrawThrough(int, cBgS_PolyPassChk*);
-    /* 8007E3D8 */ void ChkGrpThrough(int, cBgS_GrpPassChk*, int);
-    /* 8007E444 */ void CallRideCallBack(fopAc_ac_c*, fopAc_ac_c*);
-    /* 8007E474 */ void CallArrowStickCallBack(fopAc_ac_c*, fopAc_ac_c*, cXyz&);
-    /* 8007E4A4 */ void OffMoveFlag();
-    /* 8007E4B4 */ void ChkMoveFlag() const;
-    /* 8007E548 */ ~dBgW();
+
+    /* 8007E548 */ virtual ~dBgW();
+    /* 8007E4B4 */ virtual u32 ChkMoveFlag() const;
+    /* 8007E4A4 */ virtual void OffMoveFlag();
+    /* 8007DAF8 */ virtual void CaptPoly(dBgS_CaptPoly&);
+    /* 8007C484 */ virtual void WallCorrect(dBgS_Acch*);
+    /* 8007C910 */ virtual void WallCorrectSort(dBgS_Acch*);
+    /* 8007D470 */ virtual void RoofChk(dBgS_RoofChk*);
+    /* 8007D830 */ virtual void SplGrpChk(dBgS_SplGrpChk*);
+    /* 8007DF00 */ virtual void SphChk(dBgS_SphChk*, virtual void*);
+    /* 8007B3AC */ virtual s32 GetExitId(cBgS_PolyInfo const&);
+    /* 8007B3D8 */ virtual s32 GetPolyColor(cBgS_PolyInfo const&);
+    /* 8007B404 */ virtual bool GetHorseNoEntry(cBgS_PolyInfo const&);
+    /* 8007B430 */ virtual bool GetSpecialCode(cBgS_PolyInfo const&);
+    /* 8007B460 */ virtual void GetSpecialCode(int);
+    /* 8007B488 */ virtual bool GetMagnetCode(cBgS_PolyInfo const&);
+    /* 8007B4E0 */ virtual void GetPolyObjThrough(int);
+    /* 8007B504 */ virtual void GetPolyCamThrough(int);
+    /* 8007B52C */ virtual void GetPolyLinkThrough(int);
+    /* 8007B550 */ virtual void GetPolyArrowThrough(int);
+    /* 8007B574 */ virtual bool GetPolyHSStick(int);
+    /* 8007B598 */ virtual void GetPolyBoomerangThrough(int);
+    /* 8007B5BC */ virtual void GetPolyRopeThrough(int);
+    /* 8007B5E0 */ virtual void GetPolyBombThrough(int);
+    /* 8007B604 */ virtual void GetShdwThrough(int);
+    /* 8007B630 */ virtual bool GetUnderwaterRoofCode(int);
+    /* 8007B4B4 */ virtual bool GetMonkeyBarsCode(cBgS_PolyInfo const&);
+    /* 8007B6AC */ virtual void GetLinkNo(cBgS_PolyInfo const&);
+    /* 8007B6D8 */ virtual bool GetWallCode(cBgS_PolyInfo const&);
+    /* 8007B704 */ virtual bool GetPolyAtt0(cBgS_PolyInfo const&);
+    /* 8007B734 */ virtual bool GetPolyAtt1(cBgS_PolyInfo const&);
+    /* 8007B760 */ virtual bool GetGroundCode(cBgS_PolyInfo const&);
+    /* 8007B7DC */ virtual void GetIronBallThrough(int);
+    /* 8007B800 */ virtual u32 GetAttackThrough(int);
+    /* 8007B87C */ virtual s32 GetCamMoveBG(cBgS_PolyInfo const&);
+    /* 8007B8A8 */ virtual s32 GetRoomCamId(cBgS_PolyInfo const&);
+    /* 8007B8D8 */ virtual s32 GetRoomPathId(cBgS_PolyInfo const&);
+    /* 8007B904 */ virtual s32 GetRoomPathPntNo(cBgS_PolyInfo const&);
+    /* 8007DF28 */ virtual void GetPolyGrpRoomInfId(cBgS_PolyInfo const&);
+    /* 8007DF58 */ virtual s32 GetGrpSoundId(cBgS_PolyInfo const&);
+    /* 8007DF88 */ virtual void CrrPos(cBgS_PolyInfo const&, virtual void*, bool, cXyz*, csXyz*,
+                                       csXyz*);
+    /* 8007DFC4 */ virtual void TransPos(cBgS_PolyInfo const&, virtual void*, bool, cXyz*, csXyz*,
+                                         csXyz*);
+    /* 8007E000 */ virtual void MatrixCrrPos(cBgS_PolyInfo const&, virtual void*, bool, cXyz*,
+                                             csXyz*, csXyz*);
+    /* 8007E444 */ virtual void CallRideCallBack(fopAc_ac_c*, fopAc_ac_c*);
+    /* 8007E474 */ virtual void CallArrowStickCallBack(fopAc_ac_c*, fopAc_ac_c*, cXyz&);
+    /* 8007E02C */ virtual void ChkPolyThrough(int, cBgS_PolyPassChk*);
+    /* 8007E360 */ virtual void ChkShdwDrawThrough(int, cBgS_PolyPassChk*);
+    /* 8007E3D8 */ virtual void ChkGrpThrough(int, cBgS_GrpPassChk*, int);
+
+    void SetCrrFunc(dBgW_CrrFunc func) { m_crr_func = func; }
+
+private:
+    /* 0xB0 */ dBgW_CrrFunc m_crr_func;
+    /* 0xB4 */ dBgW_RideCallback m_ride_callback;
+    /* 0xB8 */ dBgW_ArrowStickCallback m_arrow_stick_callback;
+    /* 0xBC */ u8 m_flags;
 };
 
 #endif /* D_BG_D_BG_W_H */
diff --git a/include/d/bg/d_bg_w_base.h b/include/d/bg/d_bg_w_base.h
index c361a4a17e..2b67b17c5a 100644
--- a/include/d/bg/d_bg_w_base.h
+++ b/include/d/bg/d_bg_w_base.h
@@ -1,6 +1,103 @@
 #ifndef D_BG_D_BG_W_BASE_H
 #define D_BG_D_BG_W_BASE_H
 
+#include "SSystem/SComponent/c_bg_s_gnd_chk.h"
+#include "SSystem/SComponent/c_bg_s_lin_chk.h"
+#include "SSystem/SComponent/c_bg_s_poly_info.h"
+#include "SSystem/SComponent/c_bg_s_shdw_draw.h"
+#include "SSystem/SComponent/c_bg_w.h"
+#include "d/bg/d_bg_s_acch.h"
+#include "d/bg/d_bg_s_sph_chk.h"
 #include "dolphin/types.h"
+#include "f_op/f_op_actor.h"
+
+struct dBgS_CaptPoly;
+
+class dBgW_Base : public cBgW_BgId {
+public:
+    enum PushPullLabel {};
+
+    typedef s32 (*PushPull_CallBack)(cBgS_PolyInfo const&, fopAc_ac_c*, s16,
+                                     dBgW_Base::PushPullLabel);
+
+    /* 8007E5A8 */ dBgW_Base();
+    /* 8007E69C */ void ClrDBgWBase();
+    /* 8007E6E0 */ void CalcDiffShapeAngleY(s16);
+
+    /* 8007E640 */ virtual ~dBgW_Base();
+    /* 8007E6D0 */ virtual bool ChkMemoryError();
+    virtual void ChkNotReady() const = 0;
+    virtual bool ChkLock() const = 0;
+    virtual bool ChkMoveBg() const = 0;
+    virtual u32 ChkMoveFlag() const = 0;
+    virtual void GetTriPla(cBgS_PolyInfo const&) const = 0;
+    virtual bool GetTriPnt(cBgS_PolyInfo const&, cXyz*, cXyz*, cXyz*) const = 0;
+    virtual void GetBnd() const = 0;
+    virtual u32 GetGrpInf(cBgS_PolyInfo const&) const = 0;
+    virtual void OffMoveFlag() = 0;
+    virtual void GetTopUnder(f32*, f32*) const = 0;
+    /* 80074AB4 */ virtual void SetOldShapeAngleY(s16);
+    virtual bool LineCheck(cBgS_LinChk*) = 0;
+    virtual void GroundCross(cBgS_GndChk*) = 0;
+    virtual void ShdwDraw(cBgS_ShdwDraw*) = 0;
+    virtual void CaptPoly(dBgS_CaptPoly&) = 0;
+    virtual void WallCorrect(dBgS_Acch*) = 0;
+    virtual void WallCorrectSort(dBgS_Acch*) = 0;
+    virtual void RoofChk(dBgS_RoofChk*) = 0;
+    virtual void SplGrpChk(dBgS_SplGrpChk*) = 0;
+    virtual void SphChk(dBgS_SphChk*, void*) = 0;
+    virtual s32 GetGrpRoomIndex(cBgS_PolyInfo const&) const = 0;
+    virtual s32 GetExitId(cBgS_PolyInfo const&) = 0;
+    virtual s32 GetPolyColor(cBgS_PolyInfo const&) = 0;
+    virtual bool GetHorseNoEntry(cBgS_PolyInfo const&) = 0;
+    virtual bool GetSpecialCode(cBgS_PolyInfo const&) = 0;
+    virtual void GetSpecialCode(int) = 0;
+    virtual bool GetMagnetCode(cBgS_PolyInfo const&) = 0;
+    virtual void GetPolyObjThrough(int) = 0;
+    virtual void GetPolyCamThrough(int) = 0;
+    virtual void GetPolyLinkThrough(int) = 0;
+    virtual void GetPolyArrowThrough(int) = 0;
+    virtual bool GetPolyHSStick(int) = 0;
+    virtual void GetPolyBoomerangThrough(int) = 0;
+    virtual void GetPolyRopeThrough(int) = 0;
+    virtual void GetPolyBombThrough(int) = 0;
+    virtual void GetShdwThrough(int) = 0;
+    virtual bool GetUnderwaterRoofCode(int) = 0;
+    virtual bool GetMonkeyBarsCode(cBgS_PolyInfo const&) = 0;
+    virtual void GetLinkNo(cBgS_PolyInfo const&) = 0;
+    virtual bool GetWallCode(cBgS_PolyInfo const&) = 0;
+    virtual bool GetPolyAtt0(cBgS_PolyInfo const&) = 0;
+    virtual bool GetPolyAtt1(cBgS_PolyInfo const&) = 0;
+    virtual bool GetGroundCode(cBgS_PolyInfo const&) = 0;
+    virtual void GetIronBallThrough(int) = 0;
+    virtual u32 GetAttackThrough(int) = 0;
+    virtual s32 GetCamMoveBG(cBgS_PolyInfo const&) = 0;
+    virtual s32 GetRoomCamId(cBgS_PolyInfo const&) = 0;
+    virtual s32 GetRoomPathId(cBgS_PolyInfo const&) = 0;
+    virtual s32 GetRoomPathPntNo(cBgS_PolyInfo const&) = 0;
+    virtual void GetPolyGrpRoomInfId(cBgS_PolyInfo const&) = 0;
+    virtual s32 GetGrpSoundId(cBgS_PolyInfo const&) = 0;
+    virtual void CrrPos(cBgS_PolyInfo const&, void*, bool, cXyz*, csXyz*, csXyz*) = 0;
+    virtual void TransPos(cBgS_PolyInfo const&, void*, bool, cXyz*, csXyz*, csXyz*) = 0;
+    virtual void MatrixCrrPos(cBgS_PolyInfo const&, void*, bool, cXyz*, csXyz*, csXyz*) = 0;
+    /* 8007E6D8 */ virtual void CallRideCallBack(fopAc_ac_c*, fopAc_ac_c*);
+    /* 8007E6DC */ virtual void CallArrowStickCallBack(fopAc_ac_c*, fopAc_ac_c*, cXyz&);
+
+    PushPull_CallBack GetPushPullCallback() const { return m_pushPull_Callback; }
+    s16 GetDiffShapeAngleY() { return m_diff_ShapeAngleY; }
+    u8 GetRoomId() { return m_roomId; }
+    bool chkStickWall() { return field_0xb & 1; }
+    bool chkStickRoof() { return field_0xb & 2; }
+
+private:
+    /* 0x08 */ u8 m_priority;
+    /* 0x09 */ u8 m_roomId;
+    /* 0x0A */ u8 field_0xa;
+    /* 0x0B */ u8 field_0xb;
+    /* 0x0C */ s16 m_old_ShapeAngleY;
+    /* 0x0E */ s16 m_diff_ShapeAngleY;
+    /* 0x10 */ PushPull_CallBack m_pushPull_Callback;
+    /* 0x14 */ bool m_pushPull_Ok;
+};  // Size: 0x18
 
 #endif /* D_BG_D_BG_W_BASE_H */
diff --git a/include/d/bg/d_bg_w_kcol.h b/include/d/bg/d_bg_w_kcol.h
index 9ec288792b..f46686e157 100644
--- a/include/d/bg/d_bg_w_kcol.h
+++ b/include/d/bg/d_bg_w_kcol.h
@@ -1,6 +1,89 @@
 #ifndef D_BG_D_BG_W_KCOL_H
 #define D_BG_D_BG_W_KCOL_H
 
+#include "d/bg/d_bg_plc.h"
+#include "d/bg/d_bg_w_base.h"
 #include "dolphin/types.h"
 
+struct dBgS_CaptPoly;
+
+struct KC_PrismData {};
+
+class dBgWKCol : public dBgW_Base {
+public:
+    /* 8007E6F4 */ dBgWKCol();
+    /* 8007E7D0 */ void initKCollision(void*);
+    /* 8007E804 */ void create(void*, void*);
+    /* 8007E850 */ void getTriNrm(KC_PrismData*, Vec**) const;
+    /* 8007E8C0 */ void GetTriPla(int) const;
+    /* 8007E9A4 */ void GetTriPnt(int, Vec*, Vec*, Vec*) const;
+    /* 8007E9D4 */ void GetTriPnt(KC_PrismData const*, Vec*, Vec*, Vec*) const;
+    /* 8007EB70 */ void getPolyCode(int, dBgPc*) const;
+    /* 8007EBC4 */ void chkPolyThrough(dBgPc*, cBgS_PolyPassChk*, cBgS_GrpPassChk*, cXyz&) const;
+    /* 8007FF00 */ void ChkShdwDrawThrough(dBgPc*);
+
+    /* 8007E74C */ virtual ~dBgWKCol();
+    /* 8007E86C */ virtual void ChkNotReady() const;
+    /* 8007E87C */ virtual bool ChkLock() const;
+    /* 8007E884 */ virtual bool ChkMoveBg() const;
+    /* 8007E88C */ virtual bool ChkMoveFlag() const;
+    /* 8007E894 */ virtual void GetTriPla(cBgS_PolyInfo const&) const;
+    /* 8007E980 */ virtual void GetTriPnt(cBgS_PolyInfo const&, cXyz*, cXyz*, cXyz*) const;
+    /* 8007EB28 */ virtual void GetBnd() const;
+    /* 8007EB30 */ virtual void GetGrpInf(cBgS_PolyInfo const&) const;
+    /* 8007EB6C */ virtual void OffMoveFlag();
+    /* 800829AC */ virtual void GetTopUnder(f32*, f32*) const;
+    /* 8007EE34 */ virtual void LineCheck(cBgS_LinChk*);
+    /* 8007F628 */ virtual void GroundCross(cBgS_GndChk*);
+    /* 8007F9A4 */ virtual void ShdwDraw(cBgS_ShdwDraw*);
+    /* 8007FF1C */ virtual void CaptPoly(dBgS_CaptPoly&);
+    /* 800811A0 */ virtual void WallCorrect(dBgS_Acch*);
+    /* 80080330 */ virtual void WallCorrectSort(dBgS_Acch*);
+    /* 80081E18 */ virtual void RoofChk(dBgS_RoofChk*);
+    /* 80082184 */ virtual void SplGrpChk(dBgS_SplGrpChk*);
+    /* 800824EC */ virtual void SphChk(dBgS_SphChk*, virtual void*);
+    /* 800829F0 */ virtual void GetGrpRoomIndex(cBgS_PolyInfo const&) const;
+    /* 80082A20 */ virtual void GetExitId(cBgS_PolyInfo const&);
+    /* 80082A50 */ virtual void GetPolyColor(cBgS_PolyInfo const&);
+    /* 80082A80 */ virtual void GetHorseNoEntry(cBgS_PolyInfo const&);
+    /* 80082AB0 */ virtual void GetSpecialCode(cBgS_PolyInfo const&);
+    /* 80082AE0 */ virtual void GetSpecialCode(int);
+    /* 80082B0C */ virtual void GetMagnetCode(cBgS_PolyInfo const&);
+    /* 80082B6C */ virtual void GetPolyObjThrough(int);
+    /* 80082B98 */ virtual void GetPolyCamThrough(int);
+    /* 80082BC4 */ virtual void GetPolyLinkThrough(int);
+    /* 80082BF0 */ virtual void GetPolyArrowThrough(int);
+    /* 80082C1C */ virtual void GetPolyHSStick(int);
+    /* 80082C48 */ virtual void GetPolyBoomerangThrough(int);
+    /* 80082C74 */ virtual void GetPolyRopeThrough(int);
+    /* 80082CA0 */ virtual void GetPolyBombThrough(int);
+    /* 80082CF8 */ virtual void GetShdwThrough(int);
+    /* 80082CCC */ virtual void GetUnderwaterRoofCode(int);
+    /* 80082B3C */ virtual void GetMonkeyBarsCode(cBgS_PolyInfo const&);
+    /* 80082D24 */ virtual void GetLinkNo(cBgS_PolyInfo const&);
+    /* 80082D54 */ virtual void GetWallCode(cBgS_PolyInfo const&);
+    /* 80082D84 */ virtual void GetPolyAtt0(cBgS_PolyInfo const&);
+    /* 80082DB4 */ virtual void GetPolyAtt1(cBgS_PolyInfo const&);
+    /* 80082DE4 */ virtual void GetGroundCode(cBgS_PolyInfo const&);
+    /* 80082E14 */ virtual void GetIronBallThrough(int);
+    /* 80082E40 */ virtual void GetAttackThrough(int);
+    /* 80082E6C */ virtual void GetCamMoveBG(cBgS_PolyInfo const&);
+    /* 80082E9C */ virtual void GetRoomCamId(cBgS_PolyInfo const&);
+    /* 80082ECC */ virtual void GetRoomPathId(cBgS_PolyInfo const&);
+    /* 80082EFC */ virtual void GetRoomPathPntNo(cBgS_PolyInfo const&);
+    /* 80082F2C */ virtual void GetPolyGrpRoomInfId(cBgS_PolyInfo const&);
+    /* 80082F5C */ virtual void GetGrpSoundId(cBgS_PolyInfo const&);
+    /* 80082F8C */ virtual void CrrPos(cBgS_PolyInfo const&, virtual void*, bool, cXyz*, csXyz*,
+                                       csXyz*);
+    /* 80082F90 */ virtual void TransPos(cBgS_PolyInfo const&, virtual void*, bool, cXyz*, csXyz*,
+                                         csXyz*);
+    /* 80082F94 */ virtual void MatrixCrrPos(cBgS_PolyInfo const&, virtual void*, bool, cXyz*,
+                                             csXyz*, csXyz*);
+
+private:
+    /* 0x18 */ void* m_pkc_head;
+    /* 0x1C */ dBgPlc m_code;
+    /* 0x20 */ cM3dGAab m_bnd;
+};
+
 #endif /* D_BG_D_BG_W_KCOL_H */
diff --git a/include/d/com/d_com_inf_game.h b/include/d/com/d_com_inf_game.h
index 15bf9bea67..058e907b88 100644
--- a/include/d/com/d_com_inf_game.h
+++ b/include/d/com/d_com_inf_game.h
@@ -995,6 +995,10 @@ inline void* dComIfG_getObjectRes(const char* arcName, const char* resName) {
     return g_dComIfG_gameInfo.mResControl.getObjectRes(arcName, resName);
 }
 
+inline void* dComIfG_getObjectRes(const char* arcName, int param_1) {
+    return g_dComIfG_gameInfo.mResControl.getObjectRes(arcName, param_1);
+}
+
 inline daPy_py_c* dComIfGp_getLinkPlayer() {
     return (daPy_py_c*)g_dComIfG_gameInfo.play.getPlayerPtr(LINK_PTR);
 }
@@ -1011,4 +1015,8 @@ inline J2DGrafContext* dComIfGp_getCurrentGrafPort() {
     return g_dComIfG_gameInfo.play.getCurrentGrafPort();
 }
 
+inline dBgS& dComIfG_Bgsp() {
+    return g_dComIfG_gameInfo.play.mDBgS;
+}
+
 #endif /* D_COM_D_COM_INF_GAME_H */
diff --git a/include/d/d_resorce.h b/include/d/d_resorce.h
index b19e2993c8..8c038fcdfb 100644
--- a/include/d/d_resorce.h
+++ b/include/d/d_resorce.h
@@ -75,6 +75,10 @@ public:
         return getRes(arcName, resName, &mObjectInfo[0], ARRAY_SIZE(mObjectInfo));
     }
 
+    void* getObjectRes(const char* arcName, s32 param_1) {
+        return getRes(arcName, param_1, &mObjectInfo[0], ARRAY_SIZE(mObjectInfo));
+    }
+
     int syncObjectRes(const char* name) {
         return syncRes(name, &mObjectInfo[0], ARRAY_SIZE(mObjectInfo));
     }