ref: 1e689606a3e25875af72323ea0f45b06ed044b79
dir: /engine/events/in_game_trades.asm/
DoInGameTradeDialogue: ; trigger the trade offer/action specified by wWhichTrade call SaveScreenTilesToBuffer2 ld hl, TradeMons ld a, [wWhichTrade] ld b, a swap a sub b sub b ld c, a ld b, 0 add hl, bc ld a, [hli] ld [wInGameTradeGiveMonSpecies], a ld a, [hli] ld [wInGameTradeReceiveMonSpecies], a ld a, [hli] push af ld de, wInGameTradeMonNick ld bc, NAME_LENGTH call CopyData pop af ld l, a ld h, 0 ld de, InGameTradeTextPointers add hl, hl add hl, de ld a, [hli] ld [wInGameTradeTextPointerTablePointer], a ld a, [hl] ld [wInGameTradeTextPointerTablePointer + 1], a ld a, [wInGameTradeGiveMonSpecies] ld de, wInGameTradeGiveMonName call InGameTrade_GetMonName ld a, [wInGameTradeReceiveMonSpecies] ld de, wInGameTradeReceiveMonName call InGameTrade_GetMonName ld hl, wCompletedInGameTradeFlags ld a, [wWhichTrade] ld c, a ld b, FLAG_TEST predef FlagActionPredef ld a, c and a ld a, $4 ld [wInGameTradeTextPointerTableIndex], a jr nz, .printText ; if the trade hasn't been done yet xor a ld [wInGameTradeTextPointerTableIndex], a call .printText ld a, $1 ld [wInGameTradeTextPointerTableIndex], a call YesNoChoice ld a, [wCurrentMenuItem] and a jr nz, .printText call InGameTrade_DoTrade jr c, .printText ld hl, TradedForText call PrintText .printText ld hl, wInGameTradeTextPointerTableIndex ld a, [hld] ; wInGameTradeTextPointerTableIndex ld e, a ld d, 0 ld a, [hld] ; wInGameTradeTextPointerTablePointer + 1 ld l, [hl] ; wInGameTradeTextPointerTablePointer ld h, a add hl, de add hl, de ld a, [hli] ld h, [hl] ld l, a jp PrintText ; copies name of species a to hl InGameTrade_GetMonName: push de ld [wd11e], a call GetMonName ld hl, wcd6d pop de ld bc, NAME_LENGTH jp CopyData INCLUDE "data/events/trades.asm" InGameTrade_DoTrade: xor a ; NORMAL_PARTY_MENU ld [wPartyMenuTypeOrMessageID], a dec a ld [wUpdateSpritesEnabled], a call DisplayPartyMenu push af call InGameTrade_RestoreScreen pop af ld a, $1 jp c, .tradeFailed ; jump if the player didn't select a pokemon ld a, [wInGameTradeGiveMonSpecies] ld b, a ld a, [wcf91] cp b ld a, $2 jr nz, .tradeFailed ; jump if the selected mon's species is not the required one ld a, [wWhichPokemon] ld hl, wPartyMon1Level ld bc, wPartyMon2 - wPartyMon1 call AddNTimes ld a, [hl] ld [wCurEnemyLVL], a ld hl, wCompletedInGameTradeFlags ld a, [wWhichTrade] ld c, a ld b, FLAG_SET predef FlagActionPredef ld hl, ConnectCableText call PrintText ld a, [wWhichPokemon] push af ld a, [wCurEnemyLVL] push af call LoadHpBarAndStatusTilePatterns call InGameTrade_PrepareTradeData predef InternalClockTradeAnim pop af ld [wCurEnemyLVL], a pop af ld [wWhichPokemon], a ld a, [wInGameTradeReceiveMonSpecies] ld [wcf91], a xor a ld [wMonDataLocation], a ; not used ld [wRemoveMonFromBox], a call RemovePokemon ld a, $80 ; prevent the player from naming the mon ld [wMonDataLocation], a call AddPartyMon call InGameTrade_CopyDataToReceivedMon callfar EvolveTradeMon call ClearScreen call InGameTrade_RestoreScreen farcall RedrawMapView and a ld a, $3 jr .tradeSucceeded .tradeFailed scf .tradeSucceeded ld [wInGameTradeTextPointerTableIndex], a ret InGameTrade_RestoreScreen: call GBPalWhiteOutWithDelay3 call RestoreScreenTilesAndReloadTilePatterns call ReloadTilesetTilePatterns call LoadScreenTilesFromBuffer2 call Delay3 call LoadGBPal ld c, 10 call DelayFrames farjp LoadWildData InGameTrade_PrepareTradeData: ld hl, wTradedPlayerMonSpecies ld a, [wInGameTradeGiveMonSpecies] ld [hli], a ; wTradedPlayerMonSpecies ld a, [wInGameTradeReceiveMonSpecies] ld [hl], a ; wTradedEnemyMonSpecies ld hl, wPartyMonOT ld bc, NAME_LENGTH ld a, [wWhichPokemon] call AddNTimes ld de, wTradedPlayerMonOT ld bc, NAME_LENGTH call InGameTrade_CopyData ld hl, InGameTrade_TrainerString ld de, wTradedEnemyMonOT call InGameTrade_CopyData ld de, wLinkEnemyTrainerName call InGameTrade_CopyData ld hl, wPartyMon1OTID ld bc, wPartyMon2 - wPartyMon1 ld a, [wWhichPokemon] call AddNTimes ld de, wTradedPlayerMonOTID ld bc, $2 call InGameTrade_CopyData call Random ld hl, hRandomAdd ld de, wTradedEnemyMonOTID jp CopyData InGameTrade_CopyData: push hl push bc call CopyData pop bc pop hl ret InGameTrade_CopyDataToReceivedMon: ld hl, wPartyMonNicks ld bc, NAME_LENGTH call InGameTrade_GetReceivedMonPointer ld hl, wInGameTradeMonNick ld bc, NAME_LENGTH call CopyData ld hl, wPartyMonOT ld bc, NAME_LENGTH call InGameTrade_GetReceivedMonPointer ld hl, InGameTrade_TrainerString ld bc, NAME_LENGTH call CopyData ld hl, wPartyMon1OTID ld bc, wPartyMon2 - wPartyMon1 call InGameTrade_GetReceivedMonPointer ld hl, wTradedEnemyMonOTID ld bc, $2 jp CopyData ; the received mon's index is (partyCount - 1), ; so this adds bc to hl (partyCount - 1) times and moves the result to de InGameTrade_GetReceivedMonPointer: ld a, [wPartyCount] dec a call AddNTimes ld e, l ld d, h ret InGameTrade_TrainerString: db "<TRAINER>@@@@@@@@@@" InGameTradeTextPointers: ; entries correspond to TRADE_DIALOGSET_* constants dw TradeTextPointers1 dw TradeTextPointers2 dw TradeTextPointers3 TradeTextPointers1: dw WannaTrade1Text dw NoTrade1Text dw WrongMon1Text dw Thanks1Text dw AfterTrade1Text TradeTextPointers2: dw WannaTrade2Text dw NoTrade2Text dw WrongMon2Text dw Thanks2Text dw AfterTrade2Text TradeTextPointers3: dw WannaTrade3Text dw NoTrade3Text dw WrongMon3Text dw Thanks3Text dw AfterTrade3Text ConnectCableText: text_far _ConnectCableText text_end TradedForText: text_far _TradedForText sound_get_key_item text_pause text_end WannaTrade1Text: text_far _WannaTrade1Text text_end NoTrade1Text: text_far _NoTrade1Text text_end WrongMon1Text: text_far _WrongMon1Text text_end Thanks1Text: text_far _Thanks1Text text_end AfterTrade1Text: text_far _AfterTrade1Text text_end WannaTrade2Text: text_far _WannaTrade2Text text_end NoTrade2Text: text_far _NoTrade2Text text_end WrongMon2Text: text_far _WrongMon2Text text_end Thanks2Text: text_far _Thanks2Text text_end AfterTrade2Text: text_far _AfterTrade2Text text_end WannaTrade3Text: text_far _WannaTrade3Text text_end NoTrade3Text: text_far _NoTrade3Text text_end WrongMon3Text: text_far _WrongMon3Text text_end Thanks3Text: text_far _Thanks3Text text_end AfterTrade3Text: text_far _AfterTrade3Text text_end