through sub_81081AC

6 files changed, 287 insertions, 514 deletions

diff --git a/asm/item_menu.s b/asm/item_menu.s
index 704d8d5d8..f3af32b36 100644
--- a/asm/item_menu.s
+++ b/asm/item_menu.s
@@ -5,518 +5,6 @@
 
 	.text
 
-	thumb_func_start GoToBagMenu
-GoToBagMenu: @ 8107DB4
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	adds r4, r2, 0
-	lsls r0, 24
-	lsrs r6, r0, 24
-	adds r7, r6, 0
-	lsls r1, 24
-	lsrs r1, 24
-	mov r8, r1
-	bl sub_81081AC
-	ldr r5, _08107DE4 @ =gUnknown_203AD10
-	movs r0, 0x14
-	bl Alloc
-	str r0, [r5]
-	cmp r0, 0
-	bne _08107DE8
-	adds r0, r4, 0
-	bl SetMainCallback2
-	b _08107E9A
-	.align 2, 0
-_08107DE4: .4byte gUnknown_203AD10
-_08107DE8:
-	cmp r6, 0xB
-	beq _08107DF0
-	ldr r0, _08107E38 @ =gUnknown_203ACFC
-	strb r6, [r0, 0x4]
-_08107DF0:
-	cmp r4, 0
-	beq _08107DF8
-	ldr r0, _08107E38 @ =gUnknown_203ACFC
-	str r4, [r0]
-_08107DF8:
-	ldr r1, [r5]
-	movs r0, 0
-	str r0, [r1]
-	movs r0, 0xFF
-	strb r0, [r1, 0x4]
-	ldr r2, [r5]
-	ldrb r1, [r2, 0x5]
-	movs r0, 0x31
-	negs r0, r0
-	ands r0, r1
-	strb r0, [r2, 0x5]
-	ldr r2, [r5]
-	ldrb r1, [r2, 0x5]
-	movs r0, 0x3F
-	ands r0, r1
-	strb r0, [r2, 0x5]
-	ldr r1, [r5]
-	movs r0, 0x1
-	negs r0, r0
-	strb r0, [r1, 0x8]
-	ldr r1, [r5]
-	strb r0, [r1, 0x9]
-	cmp r6, 0x3
-	bne _08107E3C
-	ldr r2, [r5]
-	ldrb r1, [r2, 0x5]
-	subs r0, 0xF
-	ands r0, r1
-	movs r1, 0x1
-	orrs r0, r1
-	b _08107E5A
-	.align 2, 0
-_08107E38: .4byte gUnknown_203ACFC
-_08107E3C:
-	cmp r7, 0x6
-	bne _08107E50
-	ldr r2, [r5]
-	ldrb r1, [r2, 0x5]
-	movs r0, 0x10
-	negs r0, r0
-	ands r0, r1
-	movs r1, 0x2
-	orrs r0, r1
-	b _08107E5A
-_08107E50:
-	ldr r2, [r5]
-	ldrb r1, [r2, 0x5]
-	movs r0, 0x10
-	negs r0, r0
-	ands r0, r1
-_08107E5A:
-	strb r0, [r2, 0x5]
-	movs r1, 0
-	ldr r4, _08107EA4 @ =gTextFlags
-	ldr r5, _08107EA8 @ =gSpecialVar_ItemId
-	ldr r6, _08107EAC @ =sub_8107F10
-	ldr r3, _08107EB0 @ =gUnknown_203AD10
-	movs r2, 0
-_08107E68:
-	ldr r0, [r3]
-	adds r0, 0x10
-	adds r0, r1
-	strb r2, [r0]
-	adds r0, r1, 0x1
-	lsls r0, 24
-	lsrs r1, r0, 24
-	cmp r1, 0x3
-	bls _08107E68
-	mov r0, r8
-	cmp r0, 0x2
-	bhi _08107E86
-	ldr r0, _08107EB4 @ =gUnknown_203ACFC
-	mov r1, r8
-	strh r1, [r0, 0x6]
-_08107E86:
-	ldrb r0, [r4]
-	movs r1, 0x5
-	negs r1, r1
-	ands r1, r0
-	strb r1, [r4]
-	movs r0, 0
-	strh r0, [r5]
-	adds r0, r6, 0
-	bl SetMainCallback2
-_08107E9A:
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_08107EA4: .4byte gTextFlags
-_08107EA8: .4byte gSpecialVar_ItemId
-_08107EAC: .4byte sub_8107F10
-_08107EB0: .4byte gUnknown_203AD10
-_08107EB4: .4byte gUnknown_203ACFC
-	thumb_func_end GoToBagMenu
-
-	thumb_func_start CB2_BagMenuFromStartMenu
-CB2_BagMenuFromStartMenu: @ 8107EB8
-	push {lr}
-	ldr r2, _08107EC8 @ =CB2_ReturnToFieldWithOpenMenu
-	movs r0, 0
-	movs r1, 0x3
-	bl GoToBagMenu
-	pop {r0}
-	bx r0
-	.align 2, 0
-_08107EC8: .4byte CB2_ReturnToFieldWithOpenMenu
-	thumb_func_end CB2_BagMenuFromStartMenu
-
-	thumb_func_start sub_8107ECC
-sub_8107ECC: @ 8107ECC
-	push {lr}
-	ldr r2, _08107EDC @ =SetCB2ToReshowScreenAfterMenu2
-	movs r0, 0x5
-	movs r1, 0x3
-	bl GoToBagMenu
-	pop {r0}
-	bx r0
-	.align 2, 0
-_08107EDC: .4byte SetCB2ToReshowScreenAfterMenu2
-	thumb_func_end sub_8107ECC
-
-	thumb_func_start sub_8107EE0
-sub_8107EE0: @ 8107EE0
-	push {lr}
-	bl RunTasks
-	bl AnimateSprites
-	bl BuildOamBuffer
-	bl DoScheduledBgTilemapCopiesToVram
-	bl UpdatePaletteFade
-	pop {r0}
-	bx r0
-	thumb_func_end sub_8107EE0
-
-	thumb_func_start sub_8107EFC
-sub_8107EFC: @ 8107EFC
-	push {lr}
-	bl LoadOam
-	bl ProcessSpriteCopyRequests
-	bl TransferPlttBuffer
-	pop {r0}
-	bx r0
-	thumb_func_end sub_8107EFC
-
-	thumb_func_start sub_8107F10
-sub_8107F10: @ 8107F10
-	push {lr}
-_08107F12:
-	bl sub_80BF72C
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _08107F36
-	bl sub_8107F3C
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _08107F36
-	bl MenuHelpers_LinkSomething
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _08107F12
-_08107F36:
-	pop {r0}
-	bx r0
-	thumb_func_end sub_8107F10
-
-	thumb_func_start sub_8107F3C
-sub_8107F3C: @ 8107F3C
-	push {r4,r5,lr}
-	ldr r0, _08107F58 @ =gMain
-	movs r1, 0x87
-	lsls r1, 3
-	adds r0, r1
-	ldrb r0, [r0]
-	cmp r0, 0x13
-	bls _08107F4E
-	b _0810811C
-_08107F4E:
-	lsls r0, 2
-	ldr r1, _08107F5C @ =_08107F60
-	adds r0, r1
-	ldr r0, [r0]
-	mov pc, r0
-	.align 2, 0
-_08107F58: .4byte gMain
-_08107F5C: .4byte _08107F60
-	.align 2, 0
-_08107F60:
-	.4byte _08107FB0
-	.4byte _08107FBA
-	.4byte _08107FC0
-	.4byte _08107FC6
-	.4byte _08107FD8
-	.4byte _08107FDE
-	.4byte _08107FE4
-	.4byte _08107FF6
-	.4byte _08108010
-	.4byte _08108020
-	.4byte _08108026
-	.4byte _08108034
-	.4byte _08108046
-	.4byte _08108054
-	.4byte _0810806E
-	.4byte _081080B8
-	.4byte _081080C8
-	.4byte _081080D2
-	.4byte _081080D8
-	.4byte _081080DE
-_08107FB0:
-	bl SetVBlankHBlankCallbacksToNull
-	bl ClearScheduledBgCopiesToVram
-	b _08108104
-_08107FBA:
-	bl ScanlineEffect_Stop
-	b _08108104
-_08107FC0:
-	bl FreeAllSpritePalettes
-	b _08108104
-_08107FC6:
-	bl ResetPaletteFade
-	ldr r2, _08107FD4 @ =gPaletteFade
-	ldrb r0, [r2, 0x8]
-	movs r1, 0x80
-	orrs r0, r1
-	b _08108102
-	.align 2, 0
-_08107FD4: .4byte gPaletteFade
-_08107FD8:
-	bl ResetSpriteData
-	b _08108104
-_08107FDE:
-	bl ResetItemMenuIconState
-	b _08108104
-_08107FE4:
-	bl MenuHelpers_LinkSomething
-	lsls r0, 24
-	cmp r0, 0
-	beq _08107FF0
-	b _08108104
-_08107FF0:
-	bl ResetTasks
-	b _08108104
-_08107FF6:
-	bl sub_81081D0
-	lsls r0, 24
-	cmp r0, 0
-	beq _0810803E
-	ldr r0, _0810800C @ =gUnknown_203AD10
-	ldr r1, [r0]
-	movs r0, 0
-	strb r0, [r1, 0x10]
-	b _08108104
-	.align 2, 0
-_0810800C: .4byte gUnknown_203AD10
-_08108010:
-	bl sub_8108240
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _0810801E
-	b _08108134
-_0810801E:
-	b _08108104
-_08108020:
-	bl sub_810B858
-	b _08108104
-_08108026:
-	bl sub_8108E54
-	bl sub_8108A68
-	bl sub_8108A84
-	b _08108104
-_08108034:
-	bl sub_81083F4
-	lsls r0, 24
-	cmp r0, 0
-	bne _08108104
-_0810803E:
-	bl sub_810813C
-	movs r0, 0x1
-	b _08108136
-_08108046:
-	ldr r0, _08108050 @ =gUnknown_203ACFC
-	ldrb r0, [r0, 0x6]
-	bl sub_810842C
-	b _08108104
-	.align 2, 0
-_08108050: .4byte gUnknown_203ACFC
-_08108054:
-	ldr r0, _08108064 @ =gUnknown_203ACFC
-	ldrb r0, [r0, 0x4]
-	cmp r0, 0x3
-	beq _08108068
-	bl sub_81087EC
-	b _08108104
-	.align 2, 0
-_08108064: .4byte gUnknown_203ACFC
-_08108068:
-	bl sub_810B994
-	b _08108104
-_0810806E:
-	ldr r4, _081080AC @ =gUnknown_203ACFC
-	ldrb r0, [r4, 0x4]
-	bl sub_8108388
-	adds r5, r0, 0
-	lsls r5, 24
-	lsrs r5, 24
-	ldr r0, _081080B0 @ =gMultiuseListMenuTemplate
-	ldrh r2, [r4, 0x6]
-	lsls r2, 1
-	adds r1, r4, 0
-	adds r1, 0xE
-	adds r1, r2, r1
-	ldrh r1, [r1]
-	adds r4, 0x8
-	adds r2, r4
-	ldrh r2, [r2]
-	bl ListMenuInit
-	ldr r2, _081080B4 @ =gTasks
-	lsls r1, r5, 2
-	adds r1, r5
-	lsls r1, 3
-	adds r1, r2
-	lsls r0, 24
-	lsrs r0, 24
-	movs r2, 0
-	strh r0, [r1, 0x8]
-	strh r2, [r1, 0xE]
-	strh r2, [r1, 0x18]
-	b _08108104
-	.align 2, 0
-_081080AC: .4byte gUnknown_203ACFC
-_081080B0: .4byte gMultiuseListMenuTemplate
-_081080B4: .4byte gTasks
-_081080B8:
-	ldr r0, _081080C4 @ =gUnknown_203ACFC
-	ldrb r0, [r0, 0x6]
-	bl sub_80984FC
-	b _08108104
-	.align 2, 0
-_081080C4: .4byte gUnknown_203ACFC
-_081080C8:
-	bl sub_8108888
-	bl sub_81088D8
-	b _08108104
-_081080D2:
-	bl sub_80985E4
-	b _08108104
-_081080D8:
-	bl sub_8108C10
-	b _08108104
-_081080DE:
-	ldr r0, _081080F0 @ =gUnknown_203ACFC
-	ldrb r0, [r0, 0x4]
-	cmp r0, 0x3
-	bne _081080F4
-	movs r0, 0x1D
-	bl HelpSystem_SetSomeVariable2
-	b _081080FA
-	.align 2, 0
-_081080F0: .4byte gUnknown_203ACFC
-_081080F4:
-	movs r0, 0x9
-	bl HelpSystem_SetSomeVariable2
-_081080FA:
-	ldr r2, _08108114 @ =gPaletteFade
-	ldrb r1, [r2, 0x8]
-	movs r0, 0x7F
-	ands r0, r1
-_08108102:
-	strb r0, [r2, 0x8]
-_08108104:
-	ldr r1, _08108118 @ =gMain
-	movs r0, 0x87
-	lsls r0, 3
-	adds r1, r0
-	ldrb r0, [r1]
-	adds r0, 0x1
-	strb r0, [r1]
-	b _08108134
-	.align 2, 0
-_08108114: .4byte gPaletteFade
-_08108118: .4byte gMain
-_0810811C:
-	ldr r0, _0810812C @ =sub_8107EFC
-	bl SetVBlankCallback
-	ldr r0, _08108130 @ =sub_8107EE0
-	bl SetMainCallback2
-	movs r0, 0x1
-	b _08108136
-	.align 2, 0
-_0810812C: .4byte sub_8107EFC
-_08108130: .4byte sub_8107EE0
-_08108134:
-	movs r0, 0
-_08108136:
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_8107F3C
-
-	thumb_func_start sub_810813C
-sub_810813C: @ 810813C
-	push {lr}
-	sub sp, 0x4
-	movs r0, 0x1
-	negs r0, r0
-	movs r1, 0x2
-	negs r1, r1
-	movs r2, 0
-	str r2, [sp]
-	movs r3, 0x10
-	bl BeginNormalPaletteFade
-	ldr r0, _0810816C @ =sub_8108178
-	movs r1, 0
-	bl CreateTask
-	ldr r0, _08108170 @ =sub_8107EFC
-	bl SetVBlankCallback
-	ldr r0, _08108174 @ =sub_8107EE0
-	bl SetMainCallback2
-	add sp, 0x4
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0810816C: .4byte sub_8108178
-_08108170: .4byte sub_8107EFC
-_08108174: .4byte sub_8107EE0
-	thumb_func_end sub_810813C
-
-	thumb_func_start sub_8108178
-sub_8108178: @ 8108178
-	push {r4,lr}
-	lsls r0, 24
-	lsrs r4, r0, 24
-	ldr r0, _081081A4 @ =gPaletteFade
-	ldrb r1, [r0, 0x7]
-	movs r0, 0x80
-	ands r0, r1
-	cmp r0, 0
-	bne _0810819C
-	ldr r0, _081081A8 @ =gUnknown_203ACFC
-	ldr r0, [r0]
-	bl SetMainCallback2
-	bl sub_8108B04
-	adds r0, r4, 0
-	bl DestroyTask
-_0810819C:
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_081081A4: .4byte gPaletteFade
-_081081A8: .4byte gUnknown_203ACFC
-	thumb_func_end sub_8108178
-
-	thumb_func_start sub_81081AC
-sub_81081AC: @ 81081AC
-	ldr r0, _081081C0 @ =gUnknown_203AD10
-	movs r1, 0
-	str r1, [r0]
-	ldr r0, _081081C4 @ =gUnknown_203AD14
-	str r1, [r0]
-	ldr r0, _081081C8 @ =gUnknown_203AD18
-	str r1, [r0]
-	ldr r0, _081081CC @ =gUnknown_203AD1C
-	str r1, [r0]
-	bx lr
-	.align 2, 0
-_081081C0: .4byte gUnknown_203AD10
-_081081C4: .4byte gUnknown_203AD14
-_081081C8: .4byte gUnknown_203AD18
-_081081CC: .4byte gUnknown_203AD1C
-	thumb_func_end sub_81081AC
-
 	thumb_func_start sub_81081D0
 sub_81081D0: @ 81081D0
 	push {r4,r5,lr}
diff --git a/include/bag.h b/include/bag.h
index f82531778..8c085a211 100644
--- a/include/bag.h
+++ b/include/bag.h
@@ -1,6 +1,8 @@
 #ifndef GUARD_BAG_H
 #define GUARD_BAG_H
 
+#include "menu_helpers.h"
+
 void sub_810B858(void);
 void sub_810B8F0(u8 windowId, u8 fontId, const u8 * str, u8 x, u8 y, u8 letterSpacing, u8 lineSpacing, s8 speed, u8 colorIdx);
 void sub_810B958(const u8 * str);
diff --git a/include/battle_controllers.h b/include/battle_controllers.h
index 06a0e2957..412856353 100644
--- a/include/battle_controllers.h
+++ b/include/battle_controllers.h
@@ -2,6 +2,7 @@
 #define GUARD_BATTLE_CONTROLLERS_H
 
 #include "global.h"
+#include "battle.h"
 
 enum
 {
diff --git a/include/item_menu.h b/include/item_menu.h
index 187674e83..d141c6601 100644
--- a/include/item_menu.h
+++ b/include/item_menu.h
@@ -14,8 +14,8 @@ struct BagStruct
     u8 location;
     u8 pocket;
     u16 unk6;
-    u8 cursorPosition[6];
-    u8 scrollPosition[6];
+    u16 itemsAbove[3];
+    u16 cursorPos[3];
 };
 
 extern struct BagStruct gUnknown_203ACFC;
diff --git a/ld_script.txt b/ld_script.txt
index f07e480a2..feca781e7 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -232,6 +232,7 @@ SECTIONS {
         src/pokedex_screen.o(.text);
         asm/pokedex_screen.o(.text);
         src/list_menu.o(.text);
+        src/item_menu.o(.text);
         asm/item_menu.o(.text);
         src/save_location.o(.text);
         src/bag.o(.text);
diff --git a/src/item_menu.c b/src/item_menu.c
new file mode 100644
index 000000000..9128d0856
--- /dev/null
+++ b/src/item_menu.c
@@ -0,0 +1,281 @@
+#include "global.h"
+#include "bag.h"
+#include "battle_controllers.h"
+#include "bg.h"
+#include "help_system.h"
+#include "item_menu.h"
+#include "item_menu_icons.h"
+#include "list_menu.h"
+#include "malloc.h"
+#include "new_menu_helpers.h"
+#include "overworld.h"
+#include "palette.h"
+#include "scanline_effect.h"
+#include "text.h"
+#include "constants/items.h"
+
+struct BagMenuAlloc
+{
+    u32 field_00;
+    u8 field_04;
+    u8 field_05_0:4;
+    u8 field_05_4:2;
+    u8 field_05_6:2;
+    u16 field_06;
+    u8 field_08;
+    u8 field_09;
+    u8 filler_0A[6];
+    u8 field_10[4];
+};
+
+EWRAM_DATA struct BagStruct gUnknown_203ACFC = {};
+EWRAM_DATA struct BagMenuAlloc * gUnknown_203AD10 = NULL;
+EWRAM_DATA void * gUnknown_203AD14 = NULL;
+EWRAM_DATA struct ListMenuItem * gUnknown_203AD18 = NULL;
+EWRAM_DATA u8 (*gUnknown_203AD1C)[20] = NULL;
+
+void sub_8107F10(void);
+bool8 sub_8107F3C(void);
+void sub_810813C(void);
+void sub_8108178(u8 taskId);
+void sub_81081AC(void);
+bool8 sub_81081D0(void);
+bool8 sub_8108240(void);
+u8 sub_8108388(u8 location);
+bool8 sub_81083F4(void);
+void sub_810842C(u8 a0);
+void sub_81087EC(void);
+void sub_8108888(void);
+void sub_81088D8(void);
+void sub_8108A68(void);
+void sub_8108A84(void);
+void sub_8108B04(void);
+void sub_8108C10(void);
+void sub_8108E54(void);
+
+void GoToBagMenu(u8 location, u8 a1, MainCallback a2)
+{
+    u8 i;
+
+    sub_81081AC();
+    gUnknown_203AD10 = Alloc(sizeof(struct BagMenuAlloc));
+    if (gUnknown_203AD10 == NULL)
+        SetMainCallback2(a2);
+    else
+    {
+        if (location != 11)
+            gUnknown_203ACFC.location = location;
+        if (a2 != NULL)
+            gUnknown_203ACFC.bagCallback = a2;
+        gUnknown_203AD10->field_00 = 0;
+        gUnknown_203AD10->field_04 = 0xFF;
+        gUnknown_203AD10->field_05_4 = 0;
+        gUnknown_203AD10->field_05_6 = 0;
+        gUnknown_203AD10->field_08 = 0xFF;
+        gUnknown_203AD10->field_09 = 0xFF;
+        if (location == 3)
+            gUnknown_203AD10->field_05_0 = 1;
+        else if (location == 6)
+            gUnknown_203AD10->field_05_0 = 2;
+        else
+            gUnknown_203AD10->field_05_0 = 0;
+        for (i = 0; i < 4; i++)
+        {
+            gUnknown_203AD10->field_10[i] = 0;
+        }
+        if (a1 == 0 || a1 == 1 || a1 == 2)
+            gUnknown_203ACFC.unk6 = a1;
+        gTextFlags.autoScroll = FALSE;
+        gSpecialVar_ItemId = ITEM_NONE;
+        SetMainCallback2(sub_8107F10);
+    }
+}
+
+void CB2_BagMenuFromStartMenu(void)
+{
+    GoToBagMenu(0, 3, CB2_ReturnToFieldWithOpenMenu);
+}
+
+void sub_8107ECC(void)
+{
+    GoToBagMenu(5, 3, SetCB2ToReshowScreenAfterMenu2);
+}
+
+void sub_8107EE0(void)
+{
+    RunTasks();
+    AnimateSprites();
+    BuildOamBuffer();
+    DoScheduledBgTilemapCopiesToVram();
+    UpdatePaletteFade();
+}
+
+void sub_8107EFC(void)
+{
+    LoadOam();
+    ProcessSpriteCopyRequests();
+    TransferPlttBuffer();
+}
+
+void sub_8107F10(void)
+{
+    while (1)
+    {
+        if ((u8)sub_80BF72C() == TRUE)
+            break;
+        if (sub_8107F3C() == TRUE)
+            break;
+        if (MenuHelpers_LinkSomething() == TRUE)
+            break;
+    }
+}
+
+bool8 sub_8107F3C(void)
+{
+    u8 taskId;
+
+    switch (gMain.state)
+    {
+    case 0:
+        SetVBlankHBlankCallbacksToNull();
+        ClearScheduledBgCopiesToVram();
+        gMain.state++;
+        break;
+    case 1:
+        ScanlineEffect_Stop();
+        gMain.state++;
+        break;
+    case 2:
+        FreeAllSpritePalettes();
+        gMain.state++;
+        break;
+    case 3:
+        ResetPaletteFade();
+        gPaletteFade.bufferTransferDisabled = TRUE;
+        gMain.state++;
+        break;
+    case 4:
+        ResetSpriteData();
+        gMain.state++;
+        break;
+    case 5:
+        ResetItemMenuIconState();
+        gMain.state++;
+        break;
+    case 6:
+        if (!MenuHelpers_LinkSomething())
+        {
+            ResetTasks();
+        }
+        gMain.state++;
+        break;
+    case 7:
+        if (sub_81081D0())
+        {
+            gUnknown_203AD10->field_10[0] = 0;
+            gMain.state++;
+        }
+        else
+        {
+            sub_810813C();
+            return TRUE;
+        }
+        break;
+    case 8:
+        if (sub_8108240() == TRUE)
+            gMain.state++;
+        break;
+    case 9:
+        sub_810B858();
+        gMain.state++;
+        break;
+    case 10:
+        sub_8108E54();
+        sub_8108A68();
+        sub_8108A84();
+        gMain.state++;
+        break;
+    case 11:
+        if (!sub_81083F4())
+        {
+            sub_810813C();
+            return TRUE;
+        }
+        gMain.state++;
+        break;
+    case 12:
+        sub_810842C(gUnknown_203ACFC.unk6);
+        gMain.state++;
+        break;
+    case 13:
+        if (gUnknown_203ACFC.location != 3)
+            sub_81087EC();
+        else
+            sub_810B994();
+        gMain.state++;
+        break;
+    case 14:
+        taskId = sub_8108388(gUnknown_203ACFC.location);
+        gTasks[taskId].data[0] = ListMenuInit(&gMultiuseListMenuTemplate, gUnknown_203ACFC.cursorPos[gUnknown_203ACFC.unk6], gUnknown_203ACFC.itemsAbove[gUnknown_203ACFC.unk6]);
+        gTasks[taskId].data[3] = 0;
+        gTasks[taskId].data[8] = 0;
+        gMain.state++;
+        break;
+    case 15:
+        sub_80984FC(gUnknown_203ACFC.unk6);
+        gMain.state++;
+        break;
+    case 16:
+        sub_8108888();
+        sub_81088D8();
+        gMain.state++;
+        break;
+    case 17:
+        sub_80985E4();
+        gMain.state++;
+        break;
+    case 18:
+        sub_8108C10();
+        gMain.state++;
+        break;
+    case 19:
+        if (gUnknown_203ACFC.location == 3)
+            HelpSystem_SetSomeVariable2(29);
+        else
+            HelpSystem_SetSomeVariable2(9);
+        gPaletteFade.bufferTransferDisabled = FALSE;
+        gMain.state++;
+        break;
+    default:
+        SetVBlankCallback(sub_8107EFC);
+        SetMainCallback2(sub_8107EE0);
+        return TRUE;
+    }
+    return FALSE;
+}
+
+void sub_810813C(void)
+{
+    BeginNormalPaletteFade(0xFFFFFFFF, -2, 0, 16, RGB_BLACK);
+    CreateTask(sub_8108178, 0);
+    SetVBlankCallback(sub_8107EFC);
+    SetMainCallback2(sub_8107EE0);
+}
+
+void sub_8108178(u8 taskId)
+{
+    if (!gPaletteFade.active)
+    {
+        SetMainCallback2(gUnknown_203ACFC.bagCallback);
+        sub_8108B04();
+        DestroyTask(taskId);
+    }
+}
+
+void sub_81081AC(void)
+{
+    gUnknown_203AD10 = NULL;
+    gUnknown_203AD14 = NULL;
+    gUnknown_203AD18 = NULL;
+    gUnknown_203AD1C = NULL;
+}