Cleanup some pokenav code

include/pokenav.h

@@ -1,7 +1,7 @@
 #ifndef GUARD_POKENAV_H
 #define GUARD_POKENAV_H
 
-typedef u32 (*LoopedTask)(s32 state);
+typedef u32 (*LoopedTask)(int state);
 
 // Return values of LoopedTask functions.
 #define LT_INC_AND_PAUSE 0
@@ -11,7 +11,32 @@ typedef u32 (*LoopedTask)(s32 state);
 #define LT_FINISH 4
 #define LT_SET_STATE(newState) (newState + 5)
 
-#define UNKNOWN_POKENAV_OFFSET 100000
+enum
+{
+    POKENAV_MODE_NORMAL, // Chosen from Start menu.
+    POKENAV_MODE_FORCE_CALL_1, // Used for the script's special. Has to choose Match Call and make a call.
+    POKENAV_MODE_FORCE_CALL_2, // Set after making a call, has to exit Pokenav.
+};
+
+#define POKENAV_MENU_IDS_START 100000
+enum
+{
+	POKENAV_MENU_0 = POKENAV_MENU_IDS_START,
+	POKENAV_MENU_1,
+	POKENAV_MENU_2,
+	POKENAV_MENU_3,
+	POKENAV_MENU_4,
+	POKENAV_MENU_5,
+	POKENAV_MENU_6,
+	POKENAV_MENU_7,
+	POKENAV_MENU_8,
+	POKENAV_MENU_9,
+	POKENAV_MENU_A,
+	POKENAV_MENU_B,
+	POKENAV_MENU_C,
+	POKENAV_MENU_D,
+	POKENAV_MENU_E,
+};
 
 // pokenav.c
 void sub_81C7694(u32);
@@ -31,6 +56,12 @@ bool32 CanViewRibbonsMenu(void);
 
 // pokenav_match_call_ui.c
 
+// pokenav_main_menu.c
+bool32 InitPokenavMainMenu(void);
+void CopyPaletteIntoBufferUnfaded(const u16 *palette, u32 bufferOffset, u32 size);
+void sub_81C7850(u32 a0);
+u32 sub_81C786C(void);
+
 // pokenav_unk_1.c
 bool32 sub_81C9298(void);
 bool32 sub_81C92CC(void);
@@ -43,6 +74,7 @@ int sub_81C9894(void);
 
 // pokenav_unk_2.c
 u32 sub_81C99D4(void);
+void sub_81CAADC(void);
 
 
 #endif //GUARD_POKENAV_H