Document bike.c

include/bike.h

@@ -25,8 +25,8 @@ enum
     ACRO_STATE_TURN_JUMP,
 };
 
-void sub_80BD620(u32 directionHistory, u32 abStartSelectHistory);
-bool8 sub_80BD540(void);
+void InitPlayerAvatarBikeState(u32 directionHistory, u32 abStartSelectHistory);
+bool8 MetatileAtPlayerPositionForbidsBiking(void);
 void StartTransitionToFlipBikeState(u8 flags);
 s16 GetPlayerSpeed(void);
 bool8 sub_80BD460(u8);

include/global.fieldmap.h

@@ -333,6 +333,7 @@ enum
     COLLISION_ISOLATED_HORIZONTAL_RAIL,
     COLLISION_VERTICAL_RAIL,
     COLLISION_HORIZONTAL_RAIL,
+    COLLISION_COUNT
 };
 
 // player running states

include/overworld.h

@@ -81,7 +81,7 @@ void SetWarpDestinationToEscapeWarp(void);
 void SetWarpDestinationToLastHealLocation(void);
 u8 IsMapTypeOutdoors(u8 mapType);
 void Overworld_ClearSavedMusic(void);
-bool32 sub_8056124(u16 song);
+bool32 Overworld_MusicCanOverrideMapMusic(u16 song);
 
 void player_avatar_init_params_reset(void);