Document BDHC file loading

include/constants/bdhc.h

@@ -0,0 +1,8 @@
+#ifndef POKEPLATINUM_CONSTANTS_BDHC_H
+#define POKEPLATINUM_CONSTANTS_BDHC_H
+
+#define BDHC_BUFFER_SIZE 0x9000
+
+#define BDHC_MAGIC_LENGTH 4
+
+#endif // POKEPLATINUM_CONSTANTS_BDHC_H

include/overlay005/bdhc.h

@@ -0,0 +1,35 @@
+#ifndef POKEPLATINUM_OV5_BDHC_H
+#define POKEPLATINUM_OV5_BDHC_H
+
+#include <nitro/fx/fx.h>
+
+typedef struct BDHCPlate {
+    u16 firstPointIndex;
+    u16 secondPointIndex;
+    u16 normalIndex;
+    u16 heightIndex;
+} BDHCPlate;
+
+typedef struct BDHCPoint {
+    fx32 x;
+    fx32 y;
+} BDHCPoint;
+
+typedef struct BDHCStrip {
+    fx32 lowerBound;
+    u16 accessListElementCount;
+    u16 accessListStartIndex;
+} BDHCStrip;
+
+typedef struct BDHC {
+    BDHCPlate *plates;
+    fx32 *heights;
+    BDHCStrip *strips;
+    u16 *accessList;
+    BDHCPoint *points;
+    VecFx32 *slopes;
+    BOOL loaded;
+    int stripsSize;
+} BDHC;
+
+#endif // POKEPLATINUM_OV5_BDHC_H

include/overlay005/bdhc_loader.h

@@ -0,0 +1,18 @@
+#ifndef POKEPLATINUM_OV5_BDHC_LOADER_H
+#define POKEPLATINUM_OV5_BDHC_LOADER_H
+
+#include "overlay005/bdhc.h"
+
+#include "narc.h"
+#include "sys_task_manager.h"
+
+void BDHCLoader_Load(NARC *narc, const int bdhcSize, BDHC *bdhc, u8 *buffer);
+SysTask *BDHCLoader_StartTask(NARC *landDataNARC, const int param1, BDHC *bdhc, int *param3, u8 **buffer, int *param5);
+void BDHCLoader_ForceExitTask(SysTask *sysTask);
+void BDHCLoader_MarkBDHCNotLoaded(BDHC *bdhc);
+
+BDHC *BDHC_New(void);
+void BDHC_Free(BDHC *bdhc);
+void BDHC_Reset(BDHC *bdhc);
+
+#endif // POKEPLATINUM_OV5_BDHC_LOADER_H

include/overlay005/ov5_021E779C.h

@@ -4,12 +4,12 @@
 #include <nitro/fx/fx.h>
 
 #include "field/field_system_decl.h"
+#include "overlay005/bdhc.h"
 #include "overlay005/funcptr_ov5_021E9630.h"
 #include "overlay005/struct_ov5_021D3CAC_decl.h"
 #include "overlay005/struct_ov5_021D5894.h"
 #include "overlay005/struct_ov5_021E1608_decl.h"
 #include "overlay005/struct_ov5_021E8F60_decl.h"
-#include "overlay005/struct_ov5_021EF13C_decl.h"
 #include "overlay005/struct_ov5_021EF76C_decl.h"
 
 #include "map_matrix.h"
@@ -33,7 +33,7 @@ u8 ov5_021E935C(const u32 param0, const int param1);
 u8 ov5_021E9390(const int param0, const u8 param1, const UnkStruct_ov5_021E8F60 *param2);
 int ov5_021E9560(const UnkStruct_ov5_021E8F60 *param0, const u8 param1);
 BOOL ov5_021E9580(const UnkStruct_ov5_021E8F60 *param0, const int param1, const int param2, u8 *param3);
-const UnkStruct_ov5_021EF13C *ov5_021E9610(const UnkStruct_ov5_021E8F60 *param0, const u8 param1);
+const BDHC *ov5_021E9610(const UnkStruct_ov5_021E8F60 *param0, const u8 param1);
 u16 const *ov5_021E9624(const UnkStruct_ov5_021E8F60 *param0, const u8 param1);
 void ov5_021E9630(UnkStruct_ov5_021E8F60 *param0, UnkFuncPtr_ov5_021E9630 param1, void *param2);
 NARC *ov5_021E9828(UnkStruct_ov5_021E8F60 *param0);

include/overlay005/ov5_021EEC68.h

@@ -1,8 +1,8 @@
 #ifndef POKEPLATINUM_OV5_021EEC68_H
 #define POKEPLATINUM_OV5_021EEC68_H
 
-#include "overlay005/struct_ov5_021EF13C_decl.h"
+#include "overlay005/bdhc.h"
 
-BOOL ov5_021EED9C(const fx32 param0, const fx32 param1, const fx32 param2, const UnkStruct_ov5_021EF13C *param3, fx32 *param4);
+BOOL ov5_021EED9C(const fx32 param0, const fx32 param1, const fx32 param2, const BDHC *param3, fx32 *param4);
 
 #endif // POKEPLATINUM_OV5_021EEC68_H

platinum.us/main.lsf

@@ -509,7 +509,7 @@ Overlay overlay5
 	Object main.nef.p/src_overlay005_ov5_021EE7D4.c.o
 	Object main.nef.p/src_overlay005_ov5_021EEAC8.c.o
 	Object main.nef.p/src_overlay005_ov5_021EEC68.c.o
-	Object main.nef.p/src_overlay005_ov5_021EEF34.c.o
+	Object main.nef.p/src_overlay005_bdhc_loader.c.o
 	Object main.nef.p/src_overlay005_ov5_021EF250.c.o
 	Object main.nef.p/src_overlay005_hblank_system.c.o
 	Object main.nef.p/src_overlay005_ov5_021EF4BC.c.o

src/meson.build

@@ -402,7 +402,7 @@ pokeplatinum_c = files(
     'overlay005/ov5_021EE7D4.c',
     'overlay005/ov5_021EEAC8.c',
     'overlay005/ov5_021EEC68.c',
-    'overlay005/ov5_021EEF34.c',
+    'overlay005/bdhc_loader.c',
     'overlay005/ov5_021EF250.c',
     'overlay005/hblank_system.c',
     'overlay005/ov5_021EF4BC.c',