Add subdirectories to engine/ similar to pokecrystal

engine/events/in_game_trades.asm

@@ -0,0 +1,330 @@
+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/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
+	callab EvolveTradeMon
+	call ClearScreen
+	call InGameTrade_RestoreScreen
+	callba 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
+	jpba 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:
+	; "TRAINER@@@@@@@@@@"
+	db $5d, "@@@@@@@@@@"
+
+InGameTradeTextPointers:
+	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:
+	TX_FAR _ConnectCableText
+	db "@"
+
+TradedForText:
+	TX_FAR _TradedForText
+	TX_SFX_KEY_ITEM
+	TX_DELAY
+	db "@"
+
+WannaTrade1Text:
+	TX_FAR _WannaTrade1Text
+	db "@"
+
+NoTrade1Text:
+	TX_FAR _NoTrade1Text
+	db "@"
+
+WrongMon1Text:
+	TX_FAR _WrongMon1Text
+	db "@"
+
+Thanks1Text:
+	TX_FAR _Thanks1Text
+	db "@"
+
+AfterTrade1Text:
+	TX_FAR _AfterTrade1Text
+	db "@"
+
+WannaTrade2Text:
+	TX_FAR _WannaTrade2Text
+	db "@"
+
+NoTrade2Text:
+	TX_FAR _NoTrade2Text
+	db "@"
+
+WrongMon2Text:
+	TX_FAR _WrongMon2Text
+	db "@"
+
+Thanks2Text:
+	TX_FAR _Thanks2Text
+	db "@"
+
+AfterTrade2Text:
+	TX_FAR _AfterTrade2Text
+	db "@"
+
+WannaTrade3Text:
+	TX_FAR _WannaTrade3Text
+	db "@"
+
+NoTrade3Text:
+	TX_FAR _NoTrade3Text
+	db "@"
+
+WrongMon3Text:
+	TX_FAR _WrongMon3Text
+	db "@"
+
+Thanks3Text:
+	TX_FAR _Thanks3Text
+	db "@"
+
+AfterTrade3Text:
+	TX_FAR _AfterTrade3Text
+	db "@"