Add subdirectories to engine/ similar to pokecrystal

engine/events/prize_menu.asm

@@ -0,0 +1,306 @@
+CeladonPrizeMenu::
+	ld b, COIN_CASE
+	call IsItemInBag
+	jr nz, .havingCoinCase
+	ld hl, RequireCoinCaseTextPtr
+	jp PrintText
+.havingCoinCase
+	ld hl, wd730
+	set 6, [hl] ; disable letter-printing delay
+	ld hl, ExchangeCoinsForPrizesTextPtr
+	call PrintText
+; the following are the menu settings
+	xor a
+	ld [wCurrentMenuItem], a
+	ld [wLastMenuItem], a
+	ld a, A_BUTTON | B_BUTTON
+	ld [wMenuWatchedKeys], a
+	ld a, $03
+	ld [wMaxMenuItem], a
+	ld a, $04
+	ld [wTopMenuItemY], a
+	ld a, $01
+	ld [wTopMenuItemX], a
+	call PrintPrizePrice
+	coord hl, 0, 2
+	ld b, 8
+	ld c, 16
+	call TextBoxBorder
+	call GetPrizeMenuId
+	call UpdateSprites
+	ld hl, WhichPrizeTextPtr
+	call PrintText
+	call HandleMenuInput ; menu choice handler
+	bit 1, a ; keypress = B (Cancel)
+	jr nz, .noChoice
+	ld a, [wCurrentMenuItem]
+	cp 3 ; "NO,THANKS" choice
+	jr z, .noChoice
+	call HandlePrizeChoice
+.noChoice
+	ld hl, wd730
+	res 6, [hl]
+	ret
+
+RequireCoinCaseTextPtr:
+	TX_FAR _RequireCoinCaseText
+	TX_WAIT
+	db "@"
+
+ExchangeCoinsForPrizesTextPtr:
+	TX_FAR _ExchangeCoinsForPrizesText
+	db "@"
+
+WhichPrizeTextPtr:
+	TX_FAR _WhichPrizeText
+	db "@"
+
+GetPrizeMenuId:
+; determine which one among the three
+; prize-texts has been selected
+; using the text ID (stored in [hSpriteIndexOrTextID])
+; load the three prizes at wd13d-wd13f
+; load the three prices at wd141-wd146
+; display the three prizes' names
+; (distinguishing between Pokemon names
+; and Items (specifically TMs) names)
+	ld a, [hSpriteIndexOrTextID]
+	sub 3       ; prize-texts' id are 3, 4 and 5
+	ld [wWhichPrizeWindow], a    ; prize-texts' id (relative, i.e. 0, 1 or 2)
+	add a
+	add a
+	ld d, 0
+	ld e, a
+	ld hl, PrizeDifferentMenuPtrs
+	add hl, de
+	ld a, [hli]
+	ld d, [hl]
+	ld e, a
+	inc hl
+	push hl
+	ld hl, wPrize1
+	call CopyString
+	pop hl
+	ld a, [hli]
+	ld h, [hl]
+	ld l, a
+	ld de, wPrize1Price
+	ld bc, 6
+	call CopyData
+	ld a, [wWhichPrizeWindow]
+	cp 2        ;is TM_menu?
+	jr nz, .putMonName
+	ld a, [wPrize1]
+	ld [wd11e], a
+	call GetItemName
+	coord hl, 2, 4
+	call PlaceString
+	ld a, [wPrize2]
+	ld [wd11e], a
+	call GetItemName
+	coord hl, 2, 6
+	call PlaceString
+	ld a, [wPrize3]
+	ld [wd11e], a
+	call GetItemName
+	coord hl, 2, 8
+	call PlaceString
+	jr .putNoThanksText
+.putMonName
+	ld a, [wPrize1]
+	ld [wd11e], a
+	call GetMonName
+	coord hl, 2, 4
+	call PlaceString
+	ld a, [wPrize2]
+	ld [wd11e], a
+	call GetMonName
+	coord hl, 2, 6
+	call PlaceString
+	ld a, [wPrize3]
+	ld [wd11e], a
+	call GetMonName
+	coord hl, 2, 8
+	call PlaceString
+.putNoThanksText
+	coord hl, 2, 10
+	ld de, NoThanksText
+	call PlaceString
+; put prices on the right side of the textbox
+	ld de, wPrize1Price
+	coord hl, 13, 5
+; reg. c:
+; [low nybble] number of bytes
+; [bit 765 = %100] space-padding (not zero-padding)
+	ld c, (1 << 7 | 2)
+; Function $15CD displays BCD value (same routine
+; used by text-command $02)
+	call PrintBCDNumber
+	ld de, wPrize2Price
+	coord hl, 13, 7
+	ld c, (1 << 7 | 2)
+	call PrintBCDNumber
+	ld de, wPrize3Price
+	coord hl, 13, 9
+	ld c, (1 << 7 | 2)
+	jp PrintBCDNumber
+
+INCLUDE "data/prizes.asm"
+
+PrintPrizePrice:
+	coord hl, 11, 0
+	ld b, 1
+	ld c, 7
+	call TextBoxBorder
+	call UpdateSprites
+	coord hl, 12, 0
+	ld de, .CoinString
+	call PlaceString
+	coord hl, 13, 1
+	ld de, .SixSpacesString
+	call PlaceString
+	coord hl, 13, 1
+	ld de, wPlayerCoins
+	ld c, %10000010
+	call PrintBCDNumber
+	ret
+
+.CoinString:
+	db "COIN@"
+
+.SixSpacesString:
+	db "      @"
+
+LoadCoinsToSubtract:
+	ld a, [wWhichPrize]
+	add a
+	ld d, 0
+	ld e, a
+	ld hl, wPrize1Price
+	add hl, de ; get selected prize's price
+	xor a
+	ld [hUnusedCoinsByte], a
+	ld a, [hli]
+	ld [hCoins], a
+	ld a, [hl]
+	ld [hCoins + 1], a
+	ret
+
+HandlePrizeChoice:
+	ld a, [wCurrentMenuItem]
+	ld [wWhichPrize], a
+	ld d, 0
+	ld e, a
+	ld hl, wPrize1
+	add hl, de
+	ld a, [hl]
+	ld [wd11e], a
+	ld a, [wWhichPrizeWindow]
+	cp 2 ; is prize a TM?
+	jr nz, .getMonName
+	call GetItemName
+	jr .givePrize
+.getMonName
+	call GetMonName
+.givePrize
+	ld hl, SoYouWantPrizeTextPtr
+	call PrintText
+	call YesNoChoice
+	ld a, [wCurrentMenuItem] ; yes/no answer (Y=0, N=1)
+	and a
+	jr nz, .printOhFineThen
+	call LoadCoinsToSubtract
+	call HasEnoughCoins
+	jr c, .notEnoughCoins
+	ld a, [wWhichPrizeWindow]
+	cp $02
+	jr nz, .giveMon
+	ld a, [wd11e]
+	ld b, a
+	ld a, 1
+	ld c, a
+	call GiveItem
+	jr nc, .bagFull
+	jr .subtractCoins
+.giveMon
+	ld a, [wd11e]
+	ld [wcf91], a
+	push af
+	call GetPrizeMonLevel
+	ld c, a
+	pop af
+	ld b, a
+	call GivePokemon
+
+; If either the party or box was full, wait after displaying message.
+	push af
+	ld a, [wAddedToParty]
+	and a
+	call z, WaitForTextScrollButtonPress
+	pop af
+
+; If the mon couldn't be given to the player (because both the party and box
+; were full), return without subtracting coins.
+	ret nc
+
+.subtractCoins
+	call LoadCoinsToSubtract
+	ld hl, hCoins + 1
+	ld de, wPlayerCoins + 1
+	ld c, $02 ; how many bytes
+	predef SubBCDPredef
+	jp PrintPrizePrice
+.bagFull
+	ld hl, PrizeRoomBagIsFullTextPtr
+	jp PrintText
+.notEnoughCoins
+	ld hl, SorryNeedMoreCoinsText
+	jp PrintText
+.printOhFineThen
+	ld hl, OhFineThenTextPtr
+	jp PrintText
+
+UnknownPrizeData:
+; XXX what's this?
+	db $00,$01,$00,$01,$00,$01,$00,$00,$01
+
+HereYouGoTextPtr:
+	TX_FAR _HereYouGoText
+	TX_WAIT
+	db "@"
+
+SoYouWantPrizeTextPtr:
+	TX_FAR _SoYouWantPrizeText
+	db "@"
+
+SorryNeedMoreCoinsText:
+	TX_FAR _SorryNeedMoreCoinsText
+	TX_WAIT
+	db "@"
+
+PrizeRoomBagIsFullTextPtr:
+	TX_FAR _OopsYouDontHaveEnoughRoomText
+	TX_WAIT
+	db "@"
+
+OhFineThenTextPtr:
+	TX_FAR _OhFineThenText
+	TX_WAIT
+	db "@"
+
+GetPrizeMonLevel:
+	ld a, [wcf91]
+	ld b, a
+	ld hl, PrizeMonLevelDictionary
+.loop
+	ld a, [hli]
+	cp b
+	jr z, .matchFound
+	inc hl
+	jr .loop
+.matchFound
+	ld a, [hl]
+	ld [wCurEnemyLVL], a
+	ret
+
+INCLUDE "data/prize_mon_levels.asm"