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88 lines
1.2 KiB
NASM
88 lines
1.2 KiB
NASM
GetLandmarkCoords: ; 0x1ca896
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; Return coordinates (d, e) of landmark e.
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push hl
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ld l, e
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ld h, 0
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add hl, hl
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add hl, hl
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ld de, Landmarks
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add hl, de
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ld a, [hli]
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ld e, a
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ld d, [hl]
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pop hl
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ret
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; 0x1ca8a5
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GetLandmarkName:: ; 0x1ca8a5
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; Copy the name of landmark e to StringBuffer1.
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push hl
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push de
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push bc
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ld l, e
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ld h, 0
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add hl, hl
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add hl, hl
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ld de, Landmarks + 2
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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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ld de, StringBuffer1
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ld c, 18
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.copy
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ld a, [hli]
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ld [de], a
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inc de
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dec c
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jr nz, .copy
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pop bc
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pop de
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pop hl
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ret
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; 0x1ca8c3
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INCLUDE "data/maps/landmarks.asm"
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RegionCheck: ; 0x1caea1
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; Checks if the player is in Kanto or Johto.
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; If in Johto, returns 0 in e.
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; If in Kanto, returns 1 in e.
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ld a, [MapGroup]
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ld b, a
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ld a, [MapNumber]
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ld c, a
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call GetWorldMapLocation
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cp FAST_SHIP ; S.S. Aqua
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jr z, .johto
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cp SPECIAL_MAP
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jr nz, .checkagain
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; In a special map, get the backup map group / map id
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ld a, [BackupMapGroup]
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ld b, a
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ld a, [BackupMapNumber]
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ld c, a
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call GetWorldMapLocation
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.checkagain
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cp KANTO_LANDMARK
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jr c, .johto
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; Victory Road area is considered to be Johto.
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cp VICTORY_ROAD
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jr c, .kanto
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.johto
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ld e, 0
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ret
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.kanto
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ld e, 1
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ret
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