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pokecrystal-board/engine/events/npc_trade.asm

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NPCTrade::
ld a, e
ld [wJumptableIndex], a
call Trade_GetDialog
ld b, CHECK_FLAG
call TradeFlagAction
ld a, TRADE_DIALOG_AFTER
jr nz, .done
ld a, TRADE_DIALOG_INTRO
call PrintTradeText
call YesNoBox
ld a, TRADE_DIALOG_CANCEL
jr c, .done
; Select givemon from party
ld b, PARTYMENUACTION_GIVE_MON
farcall SelectTradeOrDayCareMon
ld a, TRADE_DIALOG_CANCEL
jr c, .done
ld e, NPCTRADE_GIVEMON
call GetTradeAttr
ld a, [wCurPartySpecies]
cp [hl]
ld a, TRADE_DIALOG_WRONG
jr nz, .done
call CheckTradeGender
ld a, TRADE_DIALOG_WRONG
jr c, .done
ld b, SET_FLAG
call TradeFlagAction
ld hl, NPCTradeCableText
call PrintText1bpp
call DoNPCTrade
call .TradeAnimation
call GetTradeMonNames
ld hl, TradedForText
call PrintText1bpp
call RestartMapMusic
ld a, TRADE_DIALOG_COMPLETE
.done
call PrintTradeText
ret
.TradeAnimation:
call DisableSpriteUpdates
ld a, [wJumptableIndex]
push af
; wTradeDialog aliases wFrameCounter, which TradeAnimation uses
ld a, [wTradeDialog]
push af
predef TradeAnimation
pop af
ld [wTradeDialog], a
pop af
ld [wJumptableIndex], a
call ReturnToMapWithSpeechTextbox
ret
CheckTradeGender:
xor a
ld [wMonType], a
ld e, NPCTRADE_GENDER
call GetTradeAttr
ld a, [hl]
and a ; TRADE_GENDER_EITHER
jr z, .matching
cp TRADE_GENDER_MALE
jr z, .check_male
; TRADE_GENDER_FEMALE
farcall GetGender
jr nz, .not_matching
jr .matching
.check_male
farcall GetGender
jr z, .not_matching
.matching
and a
ret
.not_matching
scf
ret
TradeFlagAction:
ld hl, wTradeFlags
ld a, [wJumptableIndex]
ld c, a
predef SmallFarFlagAction
ld a, c
and a
ret
Trade_GetDialog:
ld e, NPCTRADE_DIALOG
call GetTradeAttr
ld a, [hl]
ld [wTradeDialog], a
ret
DoNPCTrade:
ld e, NPCTRADE_GIVEMON
call GetTradeAttr
ld a, [hl]
ld [wPlayerTrademonSpecies], a
ld e, NPCTRADE_GETMON
call GetTradeAttr
ld a, [hl]
ld [wOTTrademonSpecies], a
ld a, [wPlayerTrademonSpecies]
ld de, wPlayerTrademonSpeciesName
call GetTradeMonName
call CopyTradeName
ld a, [wOTTrademonSpecies]
ld de, wOTTrademonSpeciesName
call GetTradeMonName
call CopyTradeName
ld hl, wPartyMonOTs
ld bc, NAME_LENGTH
call Trade_GetAttributeOfCurrentPartymon
ld de, wPlayerTrademonOTName
call CopyTradeName
ld hl, wPlayerName
ld de, wPlayerTrademonSenderName
call CopyTradeName
ld hl, wPartyMon1ID
ld bc, PARTYMON_STRUCT_LENGTH
call Trade_GetAttributeOfCurrentPartymon
ld de, wPlayerTrademonID
call Trade_CopyTwoBytes
ld hl, wPartyMon1DVs
ld bc, PARTYMON_STRUCT_LENGTH
call Trade_GetAttributeOfCurrentPartymon
ld de, wPlayerTrademonDVs
call Trade_CopyTwoBytes
ld hl, wPartyMon1Species
ld bc, PARTYMON_STRUCT_LENGTH
call Trade_GetAttributeOfCurrentPartymon
ld b, h
ld c, l
farcall GetCaughtGender
ld a, c
ld [wPlayerTrademonCaughtData], a
ld e, NPCTRADE_DIALOG
call GetTradeAttr
ld a, [hl]
cp TRADE_DIALOGSET_GIRL
ld a, CAUGHT_BY_GIRL
jr c, .okay
ld a, CAUGHT_BY_BOY
.okay
ld [wOTTrademonCaughtData], a
ld hl, wPartyMon1Level
ld bc, PARTYMON_STRUCT_LENGTH
call Trade_GetAttributeOfCurrentPartymon
ld a, [hl]
ld [wCurPartyLevel], a
ld a, [wOTTrademonSpecies]
ld [wCurPartySpecies], a
xor a
ld [wMonType], a ; PARTYMON
ld [wPokemonWithdrawDepositParameter], a ; REMOVE_PARTY
callfar RemoveMonFromPartyOrBox
predef TryAddMonToParty
ld e, NPCTRADE_DIALOG
call GetTradeAttr
ld a, [hl]
cp TRADE_DIALOGSET_GIRL
ld b, CAUGHT_BY_UNKNOWN
jr c, .incomplete
ld b, CAUGHT_BY_GIRL
.incomplete
farcall SetGiftPartyMonCaughtData
ld e, NPCTRADE_NICKNAME
call GetTradeAttr
ld de, wOTTrademonNickname
call CopyTradeName
ld hl, wPartyMonNicknames
ld bc, MON_NAME_LENGTH
call Trade_GetAttributeOfLastPartymon
ld hl, wOTTrademonNickname
call CopyTradeName
ld e, NPCTRADE_OT_NAME
call GetTradeAttr
push hl
ld de, wOTTrademonOTName
call CopyTradeName
pop hl
ld de, wOTTrademonSenderName
call CopyTradeName
ld hl, wPartyMonOTs
ld bc, NAME_LENGTH
call Trade_GetAttributeOfLastPartymon
ld hl, wOTTrademonOTName
call CopyTradeName
ld e, NPCTRADE_DVS
call GetTradeAttr
ld de, wOTTrademonDVs
call Trade_CopyTwoBytes
ld hl, wPartyMon1DVs
ld bc, PARTYMON_STRUCT_LENGTH
call Trade_GetAttributeOfLastPartymon
ld hl, wOTTrademonDVs
call Trade_CopyTwoBytes
ld e, NPCTRADE_OT_ID
call GetTradeAttr
ld de, wOTTrademonID + 1
call Trade_CopyTwoBytesReverseEndian
ld hl, wPartyMon1ID
ld bc, PARTYMON_STRUCT_LENGTH
call Trade_GetAttributeOfLastPartymon
ld hl, wOTTrademonID
call Trade_CopyTwoBytes
ld e, NPCTRADE_ITEM
call GetTradeAttr
push hl
ld hl, wPartyMon1Item
ld bc, PARTYMON_STRUCT_LENGTH
call Trade_GetAttributeOfLastPartymon
pop hl
ld a, [hl]
ld [de], a
push af
push bc
push de
push hl
ld a, [wCurPartyMon]
push af
ld a, [wPartyCount]
dec a
ld [wCurPartyMon], a
farcall ComputeNPCTrademonStats
pop af
ld [wCurPartyMon], a
pop hl
pop de
pop bc
pop af
ret
GetTradeAttr:
ld d, 0
push de
ld a, [wJumptableIndex]
and $f
swap a
ld e, a
ld d, 0
ld hl, NPCTrades
add hl, de
add hl, de
pop de
add hl, de
ret
Trade_GetAttributeOfCurrentPartymon:
ld a, [wCurPartyMon]
call AddNTimes
ret
Trade_GetAttributeOfLastPartymon:
ld a, [wPartyCount]
dec a
call AddNTimes
ld e, l
ld d, h
ret
GetTradeMonName:
push de
ld [wNamedObjectIndex], a
call GetBasePokemonName
ld hl, wStringBuffer1
pop de
ret
CopyTradeName:
ld bc, NAME_LENGTH
call CopyBytes
ret
Trade_CopyFourCharString: ; unreferenced
ld bc, 4
call CopyBytes
ld a, "@"
ld [de], a
ret
Trade_CopyThreeCharString: ; unreferenced
ld bc, 3
call CopyBytes
ld a, "@"
ld [de], a
ret
Trade_CopyTwoBytes:
ld a, [hli]
ld [de], a
inc de
ld a, [hl]
ld [de], a
ret
Trade_CopyTwoBytesReverseEndian:
ld a, [hli]
ld [de], a
dec de
ld a, [hl]
ld [de], a
ret
GetTradeMonNames:
ld e, NPCTRADE_GETMON
call GetTradeAttr
ld a, [hl]
call GetTradeMonName
ld de, wStringBuffer2
call CopyTradeName
ld e, NPCTRADE_GIVEMON
call GetTradeAttr
ld a, [hl]
call GetTradeMonName
ld de, wMonOrItemNameBuffer
call CopyTradeName
ld hl, wStringBuffer1
.loop
ld a, [hli]
cp "@"
jr nz, .loop
dec hl
push hl
ld e, NPCTRADE_GENDER
call GetTradeAttr
ld a, [hl]
pop hl
and a ; TRADE_GENDER_EITHER
ret z
cp TRADE_GENDER_MALE
ld a, "♂"
jr z, .done
; TRADE_GENDER_FEMALE
ld a, "♀"
.done
ld [hli], a
ld [hl], "@"
ret
INCLUDE "data/events/npc_trades.asm"
PrintTradeText:
push af
call GetTradeMonNames
pop af
ld bc, 2 * 4
ld hl, TradeTexts
call AddNTimes
ld a, [wTradeDialog]
ld c, a
add hl, bc
add hl, bc
ld a, [hli]
ld h, [hl]
ld l, a
call PrintText1bpp
ret
TradeTexts:
; entries correspond to TRADE_DIALOG_* × TRADE_DIALOGSET_* constants
; TRADE_DIALOG_INTRO
dw NPCTradeIntroText1
dw NPCTradeIntroText2
dw NPCTradeIntroText2
dw NPCTradeIntroText3
; TRADE_DIALOG_CANCEL
dw NPCTradeCancelText1
dw NPCTradeCancelText2
dw NPCTradeCancelText2
dw NPCTradeCancelText3
; TRADE_DIALOG_WRONG
dw NPCTradeWrongText1
dw NPCTradeWrongText2
dw NPCTradeWrongText2
dw NPCTradeWrongText3
; TRADE_DIALOG_COMPLETE
dw NPCTradeCompleteText1
dw NPCTradeCompleteText2
dw NPCTradeCompleteText4
dw NPCTradeCompleteText3
; TRADE_DIALOG_AFTER
dw NPCTradeAfterText1
dw NPCTradeAfterText2
dw NPCTradeAfterText4
dw NPCTradeAfterText3
NPCTradeCableText:
text_far _NPCTradeCableText
text_end
TradedForText:
; traded givemon for getmon
text_far Text_NPCTraded
text_asm
ld de, MUSIC_NONE
call PlayMusic
call DelayFrame
ld hl, .done
ret
.done
text_far _NPCTradeFanfareText
text_end
NPCTradeIntroText1:
text_far _NPCTradeIntroText1
text_end
NPCTradeCancelText1:
text_far _NPCTradeCancelText1
text_end
NPCTradeWrongText1:
text_far _NPCTradeWrongText1
text_end
NPCTradeCompleteText1:
text_far _NPCTradeCompleteText1
text_end
NPCTradeAfterText1:
text_far _NPCTradeAfterText1
text_end
NPCTradeIntroText2:
text_far _NPCTradeIntroText2
text_end
NPCTradeCancelText2:
text_far _NPCTradeCancelText2
text_end
NPCTradeWrongText2:
text_far _NPCTradeWrongText2
text_end
NPCTradeCompleteText2:
text_far _NPCTradeCompleteText2
text_end
NPCTradeAfterText2:
text_far _NPCTradeAfterText2
text_end
NPCTradeIntroText3:
text_far _NPCTradeIntroText3
text_end
NPCTradeCancelText3:
text_far _NPCTradeCancelText3
text_end
NPCTradeWrongText3:
text_far _NPCTradeWrongText3
text_end
NPCTradeCompleteText3:
text_far _NPCTradeCompleteText3
text_end
NPCTradeAfterText3:
text_far _NPCTradeAfterText3
text_end
NPCTradeCompleteText4:
text_far _NPCTradeCompleteText4
text_end
NPCTradeAfterText4:
text_far _NPCTradeAfterText4
text_end
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