mirror of https://github.com/pret/pokecrystal.git
275 lines
4.0 KiB
NASM
275 lines
4.0 KiB
NASM
SwitchItemsInBag: ; 2490c (9:490c)
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ld a, [wSwitchItem]
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and a
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jr z, .init
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ld b, a
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ld a, [wScrollingMenuCursorPosition]
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inc a
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cp b
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jr z, .trivial
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ld a, [wScrollingMenuCursorPosition]
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call ItemSwitch_GetNthItem
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ld a, [hl]
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cp -1
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ret z
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ld a, [wSwitchItem]
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dec a
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ld [wSwitchItem], a
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call Function249a7
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jp c, Function249d1
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ld a, [wScrollingMenuCursorPosition]
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ld c, a
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ld a, [wSwitchItem]
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cp c
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jr c, .asm_2497a
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jr .asm_2494a
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.init
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ld a, [wScrollingMenuCursorPosition]
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inc a
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ld [wSwitchItem], a
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ret
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.trivial
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xor a
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ld [wSwitchItem], a
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ret
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.asm_2494a
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ld a, [wSwitchItem]
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call Function24a40
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ld a, [wScrollingMenuCursorPosition]
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ld d, a
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ld a, [wSwitchItem]
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ld e, a
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call Function24a6c
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push bc
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ld a, [wSwitchItem]
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call ItemSwitch_GetNthItem
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dec hl
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push hl
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call ItemSwitch_ConvertSpacingToDW
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add hl, bc
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ld d, h
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ld e, l
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pop hl
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pop bc
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call Function24aab
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ld a, [wScrollingMenuCursorPosition]
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call Function24a4d
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xor a
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ld [wSwitchItem], a
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ret
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.asm_2497a
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ld a, [wSwitchItem]
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call Function24a40
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ld a, [wScrollingMenuCursorPosition]
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ld d, a
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ld a, [wSwitchItem]
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ld e, a
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call Function24a6c
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push bc
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ld a, [wSwitchItem]
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call ItemSwitch_GetNthItem
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ld d, h
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ld e, l
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call ItemSwitch_ConvertSpacingToDW
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add hl, bc
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pop bc
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call CopyBytes
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ld a, [wScrollingMenuCursorPosition]
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call Function24a4d
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xor a
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ld [wSwitchItem], a
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ret
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Function249a7: ; 249a7 (9:49a7)
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ld a, [wSwitchItem]
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call ItemSwitch_GetNthItem
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ld d, h
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ld e, l
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ld a, [wScrollingMenuCursorPosition]
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call ItemSwitch_GetNthItem
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ld a, [de]
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cp [hl]
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jr nz, .asm_249cd
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ld a, [wScrollingMenuCursorPosition]
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call Function24a97
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cp 99
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jr z, .asm_249cd
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ld a, [wSwitchItem]
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call Function24a97
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cp 99
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jr nz, .asm_249cf
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.asm_249cd
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and a
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ret
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.asm_249cf
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scf
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ret
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Function249d1: ; 249d1 (9:49d1)
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ld a, [wSwitchItem]
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call ItemSwitch_GetNthItem
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inc hl
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push hl
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ld a, [wScrollingMenuCursorPosition]
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call ItemSwitch_GetNthItem
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inc hl
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ld a, [hl]
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pop hl
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add [hl]
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cp 100
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jr c, .asm_24a01
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sub 99
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push af
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ld a, [wScrollingMenuCursorPosition]
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call ItemSwitch_GetNthItem
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inc hl
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ld [hl], 99
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ld a, [wSwitchItem]
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call ItemSwitch_GetNthItem
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inc hl
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pop af
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ld [hl], a
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xor a
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ld [wSwitchItem], a
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ret
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.asm_24a01
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push af
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ld a, [wScrollingMenuCursorPosition]
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call ItemSwitch_GetNthItem
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inc hl
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pop af
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ld [hl], a
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ld hl, wMenuData_ItemsPointerAddr
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ld a, [hli]
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ld h, [hl]
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ld l, a
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ld a, [wSwitchItem]
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cp [hl]
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jr nz, .asm_24a25
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dec [hl]
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ld a, [wSwitchItem]
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call ItemSwitch_GetNthItem
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ld [hl], $ff
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xor a
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ld [wSwitchItem], a
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ret
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.asm_24a25
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dec [hl]
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call ItemSwitch_ConvertSpacingToDW
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push bc
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ld a, [wSwitchItem]
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call ItemSwitch_GetNthItem
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pop bc
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push hl
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add hl, bc
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pop de
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.asm_24a34
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ld a, [hli]
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ld [de], a
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inc de
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cp $ff
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jr nz, .asm_24a34
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xor a
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ld [wSwitchItem], a
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ret
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Function24a40: ; 24a40 (9:4a40)
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call ItemSwitch_GetNthItem
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ld de, wd002
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call ItemSwitch_ConvertSpacingToDW
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call CopyBytes
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ret
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Function24a4d: ; 24a4d (9:4a4d)
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call ItemSwitch_GetNthItem
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ld d, h
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ld e, l
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ld hl, wd002
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call ItemSwitch_ConvertSpacingToDW
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call CopyBytes
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ret
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ItemSwitch_GetNthItem: ; 24a5c (9:4a5c)
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push af
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call ItemSwitch_ConvertSpacingToDW
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ld hl, wMenuData_ItemsPointerAddr
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ld a, [hli]
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ld h, [hl]
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ld l, a
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inc hl
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pop af
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call AddNTimes
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ret
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Function24a6c: ; 24a6c (9:4a6c)
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push hl
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call ItemSwitch_ConvertSpacingToDW
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ld a, d
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sub e
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jr nc, .dont_negate
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dec a
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cpl
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.dont_negate
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ld hl, 0
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call AddNTimes
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ld b, h
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ld c, l
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pop hl
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ret
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ItemSwitch_ConvertSpacingToDW: ; 24a80 (9:4a80)
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; This function is absolutely idiotic.
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push hl
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ld a, [wMenuData_ScrollingMenuSpacing]
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ld c, a
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ld b, 0
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ld hl, .spacing_dws
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add hl, bc
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add hl, bc
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ld c, [hl]
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inc hl
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ld b, [hl]
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pop hl
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ret
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; 24a91 (9:4a91)
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.spacing_dws ; 24a91
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dw 0, 1, 2
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; 24a97
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Function24a97: ; 24a97 (9:4a97)
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push af
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call ItemSwitch_ConvertSpacingToDW
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ld a, c
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cp 2
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jr nz, .not_2
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pop af
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call ItemSwitch_GetNthItem
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inc hl
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ld a, [hl]
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ret
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.not_2
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pop af
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ld a, $1
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ret
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Function24aab: ; 24aab (9:4aab)
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.loop
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ld a, [hld]
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ld [de], a
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dec de
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dec bc
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ld a, b
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or c
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jr nz, .loop
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ret
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