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SwitchItemsInBag:
ld a, [wSwitchItem]
and a
jr z, .init
ld b, a
ld a, [wScrollingMenuCursorPosition]
inc a
cp b
jr z, .trivial
ld a, [wScrollingMenuCursorPosition]
call ItemSwitch_GetNthItem
ld a, [hl]
cp -1
ret z
ld a, [wSwitchItem]
dec a
ld [wSwitchItem], a
call Function249a7
jp c, Function249d1
ld a, [wScrollingMenuCursorPosition]
ld c, a
ld a, [wSwitchItem]
cp c
jr c, .asm_2497a
jr .asm_2494a
.init
ld a, [wScrollingMenuCursorPosition]
inc a
ld [wSwitchItem], a
ret
.trivial
xor a
ld [wSwitchItem], a
ret
.asm_2494a
ld a, [wSwitchItem]
call Function24a40
ld a, [wScrollingMenuCursorPosition]
ld d, a
ld a, [wSwitchItem]
ld e, a
call Function24a6c
push bc
ld a, [wSwitchItem]
call ItemSwitch_GetNthItem
dec hl
push hl
call ItemSwitch_ConvertItemFormatToDW
add hl, bc
ld d, h
ld e, l
pop hl
pop bc
call Function24aab
ld a, [wScrollingMenuCursorPosition]
call Function24a4d
xor a
ld [wSwitchItem], a
ret
.asm_2497a
ld a, [wSwitchItem]
call Function24a40
ld a, [wScrollingMenuCursorPosition]
ld d, a
ld a, [wSwitchItem]
ld e, a
call Function24a6c
push bc
ld a, [wSwitchItem]
call ItemSwitch_GetNthItem
ld d, h
ld e, l
call ItemSwitch_ConvertItemFormatToDW
add hl, bc
pop bc
call CopyBytes
ld a, [wScrollingMenuCursorPosition]
call Function24a4d
xor a
ld [wSwitchItem], a
ret
Function249a7:
ld a, [wSwitchItem]
call ItemSwitch_GetNthItem
ld d, h
ld e, l
ld a, [wScrollingMenuCursorPosition]
call ItemSwitch_GetNthItem
ld a, [de]
cp [hl]
jr nz, .asm_249cd
ld a, [wScrollingMenuCursorPosition]
call Function24a97
cp MAX_ITEM_STACK
jr z, .asm_249cd
ld a, [wSwitchItem]
call Function24a97
cp MAX_ITEM_STACK
jr nz, .asm_249cf
.asm_249cd
and a
ret
.asm_249cf
scf
ret
Function249d1:
ld a, [wSwitchItem]
call ItemSwitch_GetNthItem
inc hl
push hl
ld a, [wScrollingMenuCursorPosition]
call ItemSwitch_GetNthItem
inc hl
ld a, [hl]
pop hl
add [hl]
cp MAX_ITEM_STACK + 1
jr c, .asm_24a01
sub MAX_ITEM_STACK
push af
ld a, [wScrollingMenuCursorPosition]
call ItemSwitch_GetNthItem
inc hl
ld [hl], MAX_ITEM_STACK
ld a, [wSwitchItem]
call ItemSwitch_GetNthItem
inc hl
pop af
ld [hl], a
xor a
ld [wSwitchItem], a
ret
.asm_24a01
push af
ld a, [wScrollingMenuCursorPosition]
call ItemSwitch_GetNthItem
inc hl
pop af
ld [hl], a
ld hl, wMenuData_ItemsPointerAddr
ld a, [hli]
ld h, [hl]
ld l, a
ld a, [wSwitchItem]
cp [hl]
jr nz, .asm_24a25
dec [hl]
ld a, [wSwitchItem]
call ItemSwitch_GetNthItem
ld [hl], $ff
xor a
ld [wSwitchItem], a
ret
.asm_24a25
dec [hl]
call ItemSwitch_ConvertItemFormatToDW
push bc
ld a, [wSwitchItem]
call ItemSwitch_GetNthItem
pop bc
push hl
add hl, bc
pop de
.asm_24a34
ld a, [hli]
ld [de], a
inc de
cp $ff
jr nz, .asm_24a34
xor a
ld [wSwitchItem], a
ret
Function24a40:
call ItemSwitch_GetNthItem
ld de, wd002
call ItemSwitch_ConvertItemFormatToDW
call CopyBytes
ret
Function24a4d:
call ItemSwitch_GetNthItem
ld d, h
ld e, l
ld hl, wd002
call ItemSwitch_ConvertItemFormatToDW
call CopyBytes
ret
ItemSwitch_GetNthItem:
push af
call ItemSwitch_ConvertItemFormatToDW
ld hl, wMenuData_ItemsPointerAddr
ld a, [hli]
ld h, [hl]
ld l, a
inc hl
pop af
call AddNTimes
ret
Function24a6c:
push hl
call ItemSwitch_ConvertItemFormatToDW
ld a, d
sub e
jr nc, .dont_negate
dec a
cpl
.dont_negate
ld hl, 0
call AddNTimes
ld b, h
ld c, l
pop hl
ret
ItemSwitch_ConvertItemFormatToDW:
push hl
ld a, [wMenuData_ScrollingMenuItemFormat]
ld c, a
ld b, 0
ld hl, .format_dws
add hl, bc
add hl, bc
ld c, [hl]
inc hl
ld b, [hl]
pop hl
ret
.format_dws
dw 0
dw 1
dw 2
Function24a97:
push af
call ItemSwitch_ConvertItemFormatToDW
ld a, c
cp 2
jr nz, .not_2
pop af
call ItemSwitch_GetNthItem
inc hl
ld a, [hl]
ret
.not_2
pop af
ld a, $1
ret
Function24aab:
.loop
ld a, [hld]
ld [de], a
dec de
dec bc
ld a, b
or c
jr nz, .loop
ret
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