mirror of
https://github.com/thornAvery/kep-hack.git
synced 2025-09-17 02:40:50 +12:00
171 lines
2.5 KiB
NASM
171 lines
2.5 KiB
NASM
TryFieldMove:: ; predef
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call GetPredefRegisters
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call TrySurf
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ret z
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call TryCut
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ret
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TrySurf:
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ld a, [wWalkBikeSurfState]
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cp 2 ; is the player already surfing?
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jr z, .no
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callfar IsNextTileShoreOrWater
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jr c, .no
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ld hl, TilePairCollisionsWater
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call CheckForTilePairCollisions2
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jr c, .no
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ld d, SURF
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call HasPartyMove
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jr nz, .no
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ld a, [wObtainedBadges]
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bit 4, a ; SOUL BADGE
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jr z, .no
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callfar IsSurfingAllowed
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ld hl, wd728
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bit 1, [hl]
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res 1, [hl]
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jr z, .no
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call InitializeFieldMoveTextBox
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ld hl, PromptToSurfText
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call PrintText
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call YesNoChoice
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ld a, [wCurrentMenuItem]
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and a
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jr nz, .no2
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call GetPartyMonName2
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ld a, SURFBOARD
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ld [wcf91], a
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ld [wPseudoItemID], a
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call UseItem
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.yes2
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call CloseFieldMoveTextBox
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.yes
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xor a
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ret
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.no2
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call CloseFieldMoveTextBox
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.no
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ld a, 1
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and a
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ret
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TryCut:
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call IsCutTile
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jr nc, TrySurf.no
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call InitializeFieldMoveTextBox
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ld hl, ExplainCutText
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call PrintText
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call ManualTextScroll
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ld d, CUT
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call HasPartyMove
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jr nz, TrySurf.no2
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ld a, [wObtainedBadges]
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bit 1, a ; CASCADE BADGE
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jr z, TrySurf.no2
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ld hl, PromptToCutText
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call PrintText
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call YesNoChoice
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ld a, [wCurrentMenuItem]
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and a
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jr nz, TrySurf.no2
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call GetPartyMonName2
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callfar Cut2
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call CloseFieldMoveTextBox
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jr TrySurf.yes2
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IsCutTile:
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; partial copy from UsedCut
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ld a, [wCurMapTileset]
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and a ; OVERWORLD
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jr z, .overworld
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cp GYM
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jr nz, .no
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ld a, [wTileInFrontOfPlayer]
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cp $50 ; gym cut tree
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jr nz, .no
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jr .yes
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.overworld
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ld a, [wTileInFrontOfPlayer]
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cp $3d ; cut tree
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jr nz, .no
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.yes
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scf
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ret
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.no
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and a
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ret
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HasPartyMove::
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; Return z (optional: in wWhichTrade) if a PartyMon has move d.
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; Updates wWhichPokemon.
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push bc
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push de
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push hl
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ld a, [wPartyCount]
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and a
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jr z, .no
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ld b, a
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ld c, 0
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ld hl, wPartyMons + (wPartyMon1Moves - wPartyMon1)
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.loop
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ld e, NUM_MOVES
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.check_move
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ld a, [hli]
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cp d
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jr z, .yes
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dec e
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jr nz, .check_move
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ld a, wPartyMon2 - wPartyMon1 - NUM_MOVES
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add l
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ld l, a
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adc h
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sub l
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ld h, a
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inc c
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ld a, c
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cp b
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jr c, .loop
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jr .no
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.yes
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ld a, c
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ld [wWhichPokemon], a
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xor a ; probably redundant
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ld [wWhichTrade], a
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jr .done
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.no
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ld a, 1
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and a
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ld [wWhichTrade], a
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.done
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pop hl
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pop de
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pop bc
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ret
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InitializeFieldMoveTextBox:
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call EnableAutoTextBoxDrawing
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ld a, 1 ; not 0
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ld [hSpriteIndexOrTextID], a
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callfar DisplayTextIDInit
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ret
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CloseFieldMoveTextBox:
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ld a,[hLoadedROMBank]
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push af
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jp CloseTextDisplay
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PromptToSurfText:
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text_far _PromptToSurfText
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text_end
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ExplainCutText:
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text_far _ExplainCutText
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text_end
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PromptToCutText:
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text_far _PromptToCutText
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text_end |