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217 lines
3.2 KiB
NASM
217 lines
3.2 KiB
NASM
Elevator::
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call .LoadPointer
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call .FindCurrentFloor
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jr c, .quit
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ld [wElevatorOriginFloor], a
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call Elevator_AskWhichFloor
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jr c, .quit
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ld hl, wElevatorOriginFloor
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cp [hl]
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jr z, .quit
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call Elevator_GoToFloor
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and a
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ret
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.quit
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scf
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ret
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.LoadPointer:
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ld a, b
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ld [wElevatorPointerBank], a
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ld a, e
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ld [wElevatorPointer], a
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ld a, d
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ld [wElevatorPointer + 1], a
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call .LoadFloors
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ret
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.LoadFloors:
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ld de, wCurElevatorCount
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ld bc, wElevatorDataEnd - wElevatorData
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ld hl, wElevatorPointer
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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, [wElevatorPointerBank]
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call GetFarByte
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inc hl
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ld [de], a
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inc de
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assert wCurElevatorCount + 1 == wCurElevatorFloors
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.loop
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ld a, [wElevatorPointerBank]
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call GetFarByte
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ld [de], a
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inc de
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add hl, bc
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cp -1
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jr nz, .loop
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ret
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.FindCurrentFloor:
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ld hl, wElevatorPointer
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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, [wElevatorPointerBank]
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call GetFarByte
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ld c, a
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inc hl
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ld a, [wBackupMapGroup]
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ld d, a
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ld a, [wBackupMapNumber]
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ld e, a
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ld b, 0
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.loop2
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ld a, [wElevatorPointerBank]
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call GetFarByte
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cp -1
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jr z, .fail
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inc hl
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inc hl
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ld a, [wElevatorPointerBank]
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call GetFarByte
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inc hl
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cp d
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jr nz, .next1
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ld a, [wElevatorPointerBank]
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call GetFarByte
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inc hl
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cp e
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jr nz, .next2
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jr .done
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.next1
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inc hl
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.next2
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inc b
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jr .loop2
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.done
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xor a
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ld a, b
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ret
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.fail
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scf
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ret
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Elevator_GoToFloor:
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push af
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ld hl, wElevatorPointer
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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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ld bc, wElevatorDataEnd - wElevatorData
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call AddNTimes
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inc hl
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ld de, wBackupWarpNumber
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ld a, [wElevatorPointerBank]
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ld bc, wElevatorDataEnd - wElevatorData - 1
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call FarCopyBytes
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ret
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Elevator_AskWhichFloor:
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call LoadStandardMenuHeader
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ld hl, AskFloorElevatorText
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call PrintText
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call Elevator_GetCurrentFloorText
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ld hl, Elevator_MenuHeader
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call CopyMenuHeader
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call InitScrollingMenu
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call UpdateSprites
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xor a
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ld [wMenuScrollPosition], a
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call ScrollingMenu
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call CloseWindow
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ld a, [wMenuJoypad]
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cp B_BUTTON
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jr z, .cancel
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xor a
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ld a, [wScrollingMenuCursorPosition]
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ret
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.cancel
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scf
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ret
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AskFloorElevatorText:
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text_far _AskFloorElevatorText
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text_end
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Elevator_GetCurrentFloorText:
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ld hl, wOptions
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ld a, [hl]
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push af
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set NO_TEXT_SCROLL, [hl]
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hlcoord 0, 0
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ld b, 4
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ld c, 8
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call Textbox
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hlcoord 1, 2
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ld de, Elevator_CurrentFloorText
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call PlaceString
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hlcoord 4, 4
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call Elevator_GetCurrentFloorString
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pop af
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ld [wOptions], a
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ret
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Elevator_CurrentFloorText:
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db "Now on:@"
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Elevator_GetCurrentFloorString:
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push hl
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ld a, [wElevatorOriginFloor]
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ld e, a
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ld d, 0
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ld hl, wCurElevatorFloors
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add hl, de
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ld a, [hl]
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pop de
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call GetFloorString
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ret
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Elevator_MenuHeader:
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db MENU_BACKUP_TILES ; flags
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menu_coords 12, 1, 18, 9
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dw Elevator_MenuData
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db 1 ; default option
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Elevator_MenuData:
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db SCROLLINGMENU_DISPLAY_ARROWS ; flags
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db 4, 0 ; rows, columns
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db SCROLLINGMENU_ITEMS_NORMAL ; item format
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dbw 0, wCurElevatorCount
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dba GetElevatorFloorStrings
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dba NULL
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dba NULL
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GetElevatorFloorStrings:
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ld a, [wMenuSelection]
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GetFloorString:
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push de
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call FloorToString
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ld d, h
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ld e, l
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pop hl
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jp PlaceString
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FloorToString:
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push de
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ld e, a
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ld d, 0
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ld hl, ElevatorFloorNames
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add hl, de
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add hl, de
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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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pop de
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ret
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INCLUDE "data/events/elevator_floors.asm"
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