pokecrystal/engine/events/npc_trade.asm

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