mirror of https://github.com/pret/pokecrystal.git
690 lines
9.6 KiB
NASM
Executable File
690 lines
9.6 KiB
NASM
Executable File
ReturnFromMapSetupScript:: ; b8000
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xor a
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ld [hBGMapMode], a
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; For some reson, GameFreak chose to use a farcall here instead of just falling through.
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; No other function in the game references the function at 2E:400A, here labeled
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; ReturnFromMapSetupScript.inefficient_farcall.
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farcall .inefficient_farcall ; this is a waste of 6 ROM bytes and 6 stack bytes
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ret
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; b800a
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.inefficient_farcall ; b800a
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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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ld [wCurrentLandmark], a
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call .CheckNationalParkGate
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jr z, .nationalparkgate
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call GetMapPermission
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cp GATE
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jr nz, .not_gate
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.nationalparkgate
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ld a, -1
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ld [wCurrentLandmark], a
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.not_gate
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ld hl, wEnteredMapFromContinue
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bit 1, [hl]
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res 1, [hl]
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jr nz, .dont_do_map_sign
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call .CheckMovingWithinLandmark
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jr z, .dont_do_map_sign
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ld a, [wCurrentLandmark]
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ld [wPreviousLandmark], a
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call .CheckSpecialMap
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jr z, .dont_do_map_sign
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; Display for 60 frames
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ld a, 60
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ld [wLandmarkSignTimer], a
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call LoadMapNameSignGFX
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call InitMapNameFrame
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farcall HDMATransfer_OnlyTopFourRows
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ret
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.dont_do_map_sign
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ld a, [wCurrentLandmark]
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ld [wPreviousLandmark], a
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ld a, $90
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ld [rWY], a
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ld [hWY], a
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xor a
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ld [hLCDCPointer], a
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ret
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; b8064
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.CheckMovingWithinLandmark: ; b8064
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ld a, [wCurrentLandmark]
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ld c, a
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ld a, [wPreviousLandmark]
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cp c
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ret z
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cp SPECIAL_MAP
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ret
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; b8070
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.CheckSpecialMap: ; b8070
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cp -1
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ret z
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cp SPECIAL_MAP
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ret z
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cp RADIO_TOWER
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ret z
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cp LAV_RADIO_TOWER
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ret z
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cp UNDERGROUND
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ret z
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cp INDIGO_PLATEAU
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ret z
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cp POWER_PLANT
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ret z
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ld a, $1
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and a
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ret
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; b8089
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.CheckNationalParkGate: ; b8089
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ld a, [MapGroup]
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cp GROUP_ROUTE_35_NATIONAL_PARK_GATE
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ret nz
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ld a, [MapNumber]
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cp MAP_ROUTE_35_NATIONAL_PARK_GATE
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ret z
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cp MAP_ROUTE_36_NATIONAL_PARK_GATE
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ret
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; b8098
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PlaceMapNameSign:: ; b8098 (2e:4098)
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ld hl, wLandmarkSignTimer
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ld a, [hl]
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and a
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jr z, .disappear
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dec [hl]
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cp 60
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ret z
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cp 59
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jr nz, .skip2
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call InitMapNameFrame
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call PlaceMapNameCenterAlign
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farcall HDMATransfer_OnlyTopFourRows
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.skip2
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ld a, $80
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ld a, $70
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ld [rWY], a
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ld [hWY], a
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ret
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.disappear
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ld a, $90
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ld [rWY], a
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ld [hWY], a
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xor a
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ld [hLCDCPointer], a
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ret
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LoadMapNameSignGFX: ; b80c6
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ld de, MapEntryFrameGFX
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ld hl, VTiles2 tile $60
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lb bc, BANK(MapEntryFrameGFX), $e
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call Get2bpp
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ret
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; b80d3
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InitMapNameFrame: ; b80d3
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hlcoord 0, 0
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ld b, 2
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ld c, 18
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call InitMapSignAttrMap
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call PlaceMapNameFrame
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ret
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; b80e1
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PlaceMapNameCenterAlign: ; b80e1 (2e:40e1)
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ld a, [wCurrentLandmark]
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ld e, a
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farcall GetLandmarkName
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call .GetNameLength
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ld a, SCREEN_WIDTH
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sub c
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srl a
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ld b, $0
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ld c, a
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hlcoord 0, 2
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add hl, bc
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ld de, StringBuffer1
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call PlaceString
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ret
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.GetNameLength: ; b8101 (2e:4101)
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ld c, 0
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push hl
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ld hl, StringBuffer1
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.loop
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ld a, [hli]
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cp "@"
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jr z, .stop
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cp "%"
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jr z, .loop
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inc c
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jr .loop
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.stop
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pop hl
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ret
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InitMapSignAttrMap: ; b8115
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ld de, AttrMap - TileMap
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add hl, de
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inc b
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inc b
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inc c
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inc c
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ld a, $87
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.loop
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push bc
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push hl
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.inner_loop
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ld [hli], a
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dec c
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jr nz, .inner_loop
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pop hl
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ld de, SCREEN_WIDTH
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add hl, de
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pop bc
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dec b
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jr nz, .loop
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ret
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; b812f
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PlaceMapNameFrame: ; b812f
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hlcoord 0, 0
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; top left
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ld a, $61
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ld [hli], a
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; top row
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ld a, $62
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call .FillTopBottom
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; top right
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ld a, $64
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ld [hli], a
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; left, first line
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ld a, $65
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ld [hli], a
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; first line
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call .FillMiddle
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; right, first line
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ld a, $6b
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ld [hli], a
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; left, second line
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ld a, $66
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ld [hli], a
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; second line
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call .FillMiddle
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; right, second line
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ld a, $6c
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ld [hli], a
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; bottom left
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ld a, $67
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ld [hli], a
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; bottom
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ld a, $68
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call .FillTopBottom
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; bottom right
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ld a, $6a
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ld [hl], a
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ret
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; b815b
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.FillMiddle: ; b815b
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ld c, 18
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ld a, $6d
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.loop
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ld [hli], a
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dec c
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jr nz, .loop
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ret
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; b8164
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.FillTopBottom: ; b8164
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ld c, 5
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jr .enterloop
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.continueloop
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ld [hli], a
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ld [hli], a
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.enterloop
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inc a
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ld [hli], a
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ld [hli], a
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dec a
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dec c
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jr nz, .continueloop
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ret
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; b8172
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CheckForHiddenItems: ; b8172
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; Checks to see if there are hidden items on the screen that have not yet been found. If it finds one, returns carry.
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call GetMapScriptHeaderBank
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ld [Buffer1], a
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; Get the coordinate of the bottom right corner of the screen, and load it in Buffer3/Buffer4.
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ld a, [XCoord]
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add SCREEN_WIDTH / 4
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ld [Buffer4], a
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ld a, [YCoord]
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add SCREEN_HEIGHT / 4
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ld [Buffer3], a
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; Get the pointer for the first signpost header in the map...
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ld hl, wCurrentMapSignpostHeaderPointer
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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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; ... before even checking to see if there are any signposts on this map.
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ld a, [wCurrentMapSignpostCount]
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and a
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jr z, .nosignpostitems
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; For i = 1:wCurrentMapSignpostCount...
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.loop
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; Store the counter in Buffer2, and store the signpost header pointer in the stack.
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ld [Buffer2], a
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push hl
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; Get the Y coordinate of the signpost.
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call .GetFarByte
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ld e, a
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; Is the Y coordinate of the signpost on the screen? If not, go to the next signpost.
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ld a, [Buffer3]
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sub e
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jr c, .next
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cp SCREEN_HEIGHT / 2
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jr nc, .next
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; Is the X coordinate of the signpost on the screen? If not, go to the next signpost.
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call .GetFarByte
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ld d, a
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ld a, [Buffer4]
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sub d
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jr c, .next
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cp SCREEN_WIDTH / 2
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jr nc, .next
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; Is this signpost a hidden item? If not, go to the next signpost.
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call .GetFarByte
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cp SIGNPOST_ITEM
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jr nz, .next
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; Has this item already been found? If not, set off the Itemfinder.
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ld a, [Buffer1]
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call GetFarHalfword
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ld a, [Buffer1]
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call GetFarHalfword
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ld d, h
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ld e, l
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ld b, CHECK_FLAG
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call EventFlagAction
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ld a, c
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and a
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jr z, .itemnearby
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.next
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; Restore the signpost header pointer and increment it by the length of a signpost header.
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pop hl
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ld bc, 5
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add hl, bc
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; Restore the signpost counter and decrement it. If it hits zero, there are no hidden items in range.
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ld a, [Buffer2]
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dec a
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jr nz, .loop
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.nosignpostitems
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xor a
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ret
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.itemnearby
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pop hl
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scf
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ret
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; b81e2
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.GetFarByte: ; b81e2
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ld a, [Buffer1]
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call GetFarByte
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inc hl
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ret
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; b81ea
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TreeMonEncounter: ; b81ea
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farcall TrainerRankings_TreeEncounters
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xor a
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ld [TempWildMonSpecies], a
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ld [CurPartyLevel], a
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ld hl, TreeMonMaps
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call GetTreeMonSet
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jr nc, .no_battle
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call GetTreeMons
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jr nc, .no_battle
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call GetTreeMon
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jr nc, .no_battle
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ld a, BATTLETYPE_TREE
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ld [BattleType], a
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ld a, 1
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ld [ScriptVar], a
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ret
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.no_battle
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xor a
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ld [ScriptVar], a
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ret
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; b8219
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RockMonEncounter: ; b8219
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xor a
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ld [TempWildMonSpecies], a
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ld [CurPartyLevel], a
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ld hl, RockMonMaps
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call GetTreeMonSet
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jr nc, .no_battle
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call GetTreeMons
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jr nc, .no_battle
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ld a, 10
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call RandomRange
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cp 4
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jr nc, .no_battle
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call SelectTreeMon
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jr nc, .no_battle
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ret
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.no_battle
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xor a
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ret
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; b823e
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db $05 ; ????
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GetTreeMonSet: ; b823f
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; Return carry and treemon set in a
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; if the current map is in table hl.
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ld a, [MapNumber]
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ld e, a
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ld a, [MapGroup]
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ld d, a
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.loop
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ld a, [hli]
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cp -1
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jr z, .not_in_table
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cp d
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jr nz, .skip2
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ld a, [hli]
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cp e
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jr nz, .skip1
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jr .in_table
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.skip2
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inc hl
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.skip1
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inc hl
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jr .loop
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.not_in_table
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xor a
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ret
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.in_table
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ld a, [hl]
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scf
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ret
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; b825e
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INCLUDE "data/wild/treemon_maps.asm"
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GetTreeMons: ; b82d2
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; Return the address of TreeMon table a in hl.
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; Return nc if table a doesn't exist.
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cp 8
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jr nc, .quit
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and a
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jr z, .quit
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ld e, a
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ld d, 0
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ld hl, TreeMons
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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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scf
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ret
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.quit
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xor a
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ret
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; b82e8
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INCLUDE "data/wild/treemons.asm"
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GetTreeMon: ; b83e5
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push hl
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call GetTreeScore
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pop hl
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and a
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jr z, .bad
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cp 1
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jr z, .good
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cp 2
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jr z, .rare
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ret
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.bad
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ld a, 10
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call RandomRange
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and a
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jr nz, NoTreeMon
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jr SelectTreeMon
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.good
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ld a, 10
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call RandomRange
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cp 5
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jr nc, NoTreeMon
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jr SelectTreeMon
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.rare
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ld a, 10
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call RandomRange
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cp 8
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jr nc, NoTreeMon
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jr .skip
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.skip
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ld a, [hli]
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cp -1
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jr nz, .skip
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call SelectTreeMon
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ret
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; b841f
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SelectTreeMon: ; b841f
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; Read a TreeMons table and pick one monster at random.
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ld a, 100
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call RandomRange
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.loop
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sub [hl]
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jr c, .ok
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inc hl
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inc hl
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inc hl
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jr .loop
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.ok
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ld a, [hli]
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cp $ff
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jr z, NoTreeMon
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ld a, [hli]
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ld [TempWildMonSpecies], a
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ld a, [hl]
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ld [CurPartyLevel], a
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scf
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ret
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NoTreeMon: ; b843b
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xor a
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ld [TempWildMonSpecies], a
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ld [CurPartyLevel], a
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ret
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; b8443
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GetTreeScore: ; b8443
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call .CoordScore
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ld [Buffer1], a
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call .OTIDScore
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ld [Buffer2], a
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ld c, a
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ld a, [Buffer1]
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sub c
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jr z, .rare
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jr nc, .ok
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add 10
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.ok
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cp 5
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jr c, .good
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.bad
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xor a
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ret
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.good
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ld a, 1
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ret
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.rare
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ld a, 2
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ret
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; b8466
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.CoordScore: ; b8466
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call GetFacingTileCoord
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ld hl, 0
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ld c, e
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ld b, 0
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ld a, d
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and a
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jr z, .next
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.loop
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add hl, bc
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dec a
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jr nz, .loop
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.next
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add hl, bc
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ld c, d
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add hl, bc
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ld a, h
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ld [hDividend], a
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ld a, l
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ld [hDividend + 1], a
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ld a, 5
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ld [hDivisor], a
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ld b, 2
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call Divide
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ld a, [hQuotient + 1]
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ld [hDividend], a
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ld a, [hQuotient + 2]
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ld [hDividend + 1], a
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ld a, 10
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ld [hDivisor], a
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ld b, 2
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call Divide
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ld a, [hQuotient + 3]
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ret
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; b849d
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.OTIDScore: ; b849d
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ld a, [PlayerID]
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ld [hDividend], a
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ld a, [PlayerID + 1]
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ld [hDividend + 1], a
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ld a, 10
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ld [hDivisor], a
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ld b, 2
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call Divide
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ld a, [hQuotient + 3]
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ret
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; b84b3
|
|
|
|
LoadFishingGFX: ; b84b3
|
|
ld a, [rVBK]
|
|
push af
|
|
ld a, $1
|
|
ld [rVBK], a
|
|
|
|
ld de, FishingGFX
|
|
ld a, [PlayerGender]
|
|
bit 0, a
|
|
jr z, .got_gender
|
|
ld de, KrisFishingGFX
|
|
.got_gender
|
|
|
|
ld hl, VTiles0 tile $02
|
|
call .LoadGFX
|
|
ld hl, VTiles0 tile $06
|
|
call .LoadGFX
|
|
ld hl, VTiles0 tile $0a
|
|
call .LoadGFX
|
|
ld hl, VTiles1 tile $7c
|
|
call .LoadGFX
|
|
|
|
pop af
|
|
ld [rVBK], a
|
|
ret
|
|
; b84e3
|
|
|
|
.LoadGFX: ; b84e3
|
|
lb bc, BANK(FishingGFX), 2
|
|
push de
|
|
call Get2bpp
|
|
pop de
|
|
ld hl, 2 tiles
|
|
add hl, de
|
|
ld d, h
|
|
ld e, l
|
|
ret
|
|
; b84f2
|
|
|
|
FishingGFX: ; b84f2
|
|
INCBIN "gfx/overworld/chris_fish.2bpp"
|
|
; b8582
|
|
|
|
KrisFishingGFX: ; b8582
|
|
INCBIN "gfx/overworld/kris_fish.2bpp"
|
|
; b8612
|