Add subdirectories to engine/ similar to pokecrystal

engine/menus/pokedex.asm

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+ShowPokedexMenu:
+	call GBPalWhiteOut
+	call ClearScreen
+	call UpdateSprites
+	ld a, [wListScrollOffset]
+	push af
+	xor a
+	ld [wCurrentMenuItem], a
+	ld [wListScrollOffset], a
+	ld [wLastMenuItem], a
+	inc a
+	ld [wd11e], a
+	ld [hJoy7], a
+.setUpGraphics
+	ld b, SET_PAL_GENERIC
+	call RunPaletteCommand
+	callab LoadPokedexTilePatterns
+.doPokemonListMenu
+	ld hl, wTopMenuItemY
+	ld a, 3
+	ld [hli], a ; top menu item Y
+	xor a
+	ld [hli], a ; top menu item X
+	inc a
+	ld [wMenuWatchMovingOutOfBounds], a
+	inc hl
+	inc hl
+	ld a, 6
+	ld [hli], a ; max menu item ID
+	ld [hl], D_LEFT | D_RIGHT | B_BUTTON | A_BUTTON
+	call HandlePokedexListMenu
+	jr c, .goToSideMenu ; if the player chose a pokemon from the list
+.exitPokedex
+	xor a
+	ld [wMenuWatchMovingOutOfBounds], a
+	ld [wCurrentMenuItem], a
+	ld [wLastMenuItem], a
+	ld [hJoy7], a
+	ld [wWastedByteCD3A], a
+	ld [wOverrideSimulatedJoypadStatesMask], a
+	pop af
+	ld [wListScrollOffset], a
+	call GBPalWhiteOutWithDelay3
+	call RunDefaultPaletteCommand
+	jp ReloadMapData
+.goToSideMenu
+	call HandlePokedexSideMenu
+	dec b
+	jr z, .exitPokedex ; if the player chose Quit
+	dec b
+	jr z, .doPokemonListMenu ; if pokemon not seen or player pressed B button
+	jp .setUpGraphics ; if pokemon data or area was shown
+
+; handles the menu on the lower right in the pokedex screen
+; OUTPUT:
+; b = reason for exiting menu
+; 00: showed pokemon data or area
+; 01: the player chose Quit
+; 02: the pokemon has not been seen yet or the player pressed the B button
+HandlePokedexSideMenu:
+	call PlaceUnfilledArrowMenuCursor
+	ld a, [wCurrentMenuItem]
+	push af
+	ld b, a
+	ld a, [wLastMenuItem]
+	push af
+	ld a, [wListScrollOffset]
+	push af
+	add b
+	inc a
+	ld [wd11e], a
+	ld a, [wd11e]
+	push af
+	ld a, [wDexMaxSeenMon]
+	push af ; this doesn't need to be preserved
+	ld hl, wPokedexSeen
+	call IsPokemonBitSet
+	ld b, 2
+	jr z, .exitSideMenu
+	call PokedexToIndex
+	ld hl, wTopMenuItemY
+	ld a, 10
+	ld [hli], a ; top menu item Y
+	ld a, 15
+	ld [hli], a ; top menu item X
+	xor a
+	ld [hli], a ; current menu item ID
+	inc hl
+	ld a, 3
+	ld [hli], a ; max menu item ID
+	;ld a, A_BUTTON | B_BUTTON
+	ld [hli], a ; menu watched keys (A button and B button)
+	xor a
+	ld [hli], a ; old menu item ID
+	ld [wMenuWatchMovingOutOfBounds], a
+.handleMenuInput
+	call HandleMenuInput
+	bit 1, a ; was the B button pressed?
+	ld b, 2
+	jr nz, .buttonBPressed
+	ld a, [wCurrentMenuItem]
+	and a
+	jr z, .choseData
+	dec a
+	jr z, .choseCry
+	dec a
+	jr z, .choseArea
+.choseQuit
+	ld b, 1
+.exitSideMenu
+	pop af
+	ld [wDexMaxSeenMon], a
+	pop af
+	ld [wd11e], a
+	pop af
+	ld [wListScrollOffset], a
+	pop af
+	ld [wLastMenuItem], a
+	pop af
+	ld [wCurrentMenuItem], a
+	push bc
+	coord hl, 0, 3
+	ld de, 20
+	lb bc, " ", 13
+	call DrawTileLine ; cover up the menu cursor in the pokemon list
+	pop bc
+	ret
+
+.buttonBPressed
+	push bc
+	coord hl, 15, 10
+	ld de, 20
+	lb bc, " ", 7
+	call DrawTileLine ; cover up the menu cursor in the side menu
+	pop bc
+	jr .exitSideMenu
+
+.choseData
+	call ShowPokedexDataInternal
+	ld b, 0
+	jr .exitSideMenu
+
+; play pokemon cry
+.choseCry
+	ld a, [wd11e]
+	call GetCryData
+	call PlaySound
+	jr .handleMenuInput
+
+.choseArea
+	predef LoadTownMap_Nest ; display pokemon areas
+	ld b, 0
+	jr .exitSideMenu
+
+; handles the list of pokemon on the left of the pokedex screen
+; sets carry flag if player presses A, unsets carry flag if player presses B
+HandlePokedexListMenu:
+	xor a
+	ld [H_AUTOBGTRANSFERENABLED], a
+; draw the horizontal line separating the seen and owned amounts from the menu
+	coord hl, 15, 8
+	ld a, "─"
+	ld [hli], a
+	ld [hli], a
+	ld [hli], a
+	ld [hli], a
+	ld [hli], a
+	coord hl, 14, 0
+	ld [hl], $71 ; vertical line tile
+	coord hl, 14, 1
+	call DrawPokedexVerticalLine
+	coord hl, 14, 9
+	call DrawPokedexVerticalLine
+	ld hl, wPokedexSeen
+	ld b, wPokedexSeenEnd - wPokedexSeen
+	call CountSetBits
+	ld de, wNumSetBits
+	coord hl, 16, 3
+	lb bc, 1, 3
+	call PrintNumber ; print number of seen pokemon
+	ld hl, wPokedexOwned
+	ld b, wPokedexOwnedEnd - wPokedexOwned
+	call CountSetBits
+	ld de, wNumSetBits
+	coord hl, 16, 6
+	lb bc, 1, 3
+	call PrintNumber ; print number of owned pokemon
+	coord hl, 16, 2
+	ld de, PokedexSeenText
+	call PlaceString
+	coord hl, 16, 5
+	ld de, PokedexOwnText
+	call PlaceString
+	coord hl, 1, 1
+	ld de, PokedexContentsText
+	call PlaceString
+	coord hl, 16, 10
+	ld de, PokedexMenuItemsText
+	call PlaceString
+; find the highest pokedex number among the pokemon the player has seen
+	ld hl, wPokedexSeenEnd - 1
+	ld b, (wPokedexSeenEnd - wPokedexSeen) * 8 + 1
+.maxSeenPokemonLoop
+	ld a, [hld]
+	ld c, 8
+.maxSeenPokemonInnerLoop
+	dec b
+	sla a
+	jr c, .storeMaxSeenPokemon
+	dec c
+	jr nz, .maxSeenPokemonInnerLoop
+	jr .maxSeenPokemonLoop
+
+.storeMaxSeenPokemon
+	ld a, b
+	ld [wDexMaxSeenMon], a
+.loop
+	xor a
+	ld [H_AUTOBGTRANSFERENABLED], a
+	coord hl, 4, 2
+	lb bc, 14, 10
+	call ClearScreenArea
+	coord hl, 1, 3
+	ld a, [wListScrollOffset]
+	ld [wd11e], a
+	ld d, 7
+	ld a, [wDexMaxSeenMon]
+	cp 7
+	jr nc, .printPokemonLoop
+	ld d, a
+	dec a
+	ld [wMaxMenuItem], a
+; loop to print pokemon pokedex numbers and names
+; if the player has owned the pokemon, it puts a pokeball beside the name
+.printPokemonLoop
+	ld a, [wd11e]
+	inc a
+	ld [wd11e], a
+	push af
+	push de
+	push hl
+	ld de, -SCREEN_WIDTH
+	add hl, de
+	ld de, wd11e
+	lb bc, LEADING_ZEROES | 1, 3
+	call PrintNumber ; print the pokedex number
+	ld de, SCREEN_WIDTH
+	add hl, de
+	dec hl
+	push hl
+	ld hl, wPokedexOwned
+	call IsPokemonBitSet
+	pop hl
+	ld a, " "
+	jr z, .writeTile
+	ld a, $72 ; pokeball tile
+.writeTile
+	ld [hl], a ; put a pokeball next to pokemon that the player has owned
+	push hl
+	ld hl, wPokedexSeen
+	call IsPokemonBitSet
+	jr nz, .getPokemonName ; if the player has seen the pokemon
+	ld de, .dashedLine ; print a dashed line in place of the name if the player hasn't seen the pokemon
+	jr .skipGettingName
+.dashedLine ; for unseen pokemon in the list
+	db "----------@"
+.getPokemonName
+	call PokedexToIndex
+	call GetMonName
+.skipGettingName
+	pop hl
+	inc hl
+	call PlaceString
+	pop hl
+	ld bc, 2 * SCREEN_WIDTH
+	add hl, bc
+	pop de
+	pop af
+	ld [wd11e], a
+	dec d
+	jr nz, .printPokemonLoop
+	ld a, 01
+	ld [H_AUTOBGTRANSFERENABLED], a
+	call Delay3
+	call GBPalNormal
+	call HandleMenuInput
+	bit 1, a ; was the B button pressed?
+	jp nz, .buttonBPressed
+.checkIfUpPressed
+	bit 6, a ; was Up pressed?
+	jr z, .checkIfDownPressed
+.upPressed ; scroll up one row
+	ld a, [wListScrollOffset]
+	and a
+	jp z, .loop
+	dec a
+	ld [wListScrollOffset], a
+	jp .loop
+.checkIfDownPressed
+	bit 7, a ; was Down pressed?
+	jr z, .checkIfRightPressed
+.downPressed ; scroll down one row
+	ld a, [wDexMaxSeenMon]
+	cp 7
+	jp c, .loop ; can't if the list is shorter than 7
+	sub 7
+	ld b, a
+	ld a, [wListScrollOffset]
+	cp b
+	jp z, .loop
+	inc a
+	ld [wListScrollOffset], a
+	jp .loop
+.checkIfRightPressed
+	bit 4, a ; was Right pressed?
+	jr z, .checkIfLeftPressed
+.rightPressed ; scroll down 7 rows
+	ld a, [wDexMaxSeenMon]
+	cp 7
+	jp c, .loop ; can't if the list is shorter than 7
+	sub 6
+	ld b, a
+	ld a, [wListScrollOffset]
+	add 7
+	ld [wListScrollOffset], a
+	cp b
+	jp c, .loop
+	dec b
+	ld a, b
+	ld [wListScrollOffset], a
+	jp .loop
+.checkIfLeftPressed ; scroll up 7 rows
+	bit 5, a ; was Left pressed?
+	jr z, .buttonAPressed
+.leftPressed
+	ld a, [wListScrollOffset]
+	sub 7
+	ld [wListScrollOffset], a
+	jp nc, .loop
+	xor a
+	ld [wListScrollOffset], a
+	jp .loop
+.buttonAPressed
+	scf
+	ret
+.buttonBPressed
+	and a
+	ret
+
+DrawPokedexVerticalLine:
+	ld c, 9 ; height of line
+	ld de, SCREEN_WIDTH
+	ld a, $71 ; vertical line tile
+.loop
+	ld [hl], a
+	add hl, de
+	xor 1 ; toggle between vertical line tile and box tile
+	dec c
+	jr nz, .loop
+	ret
+
+PokedexSeenText:
+	db "SEEN@"
+
+PokedexOwnText:
+	db "OWN@"
+
+PokedexContentsText:
+	db "CONTENTS@"
+
+PokedexMenuItemsText:
+	db   "DATA"
+	next "CRY"
+	next "AREA"
+	next "QUIT@"
+
+; tests if a pokemon's bit is set in the seen or owned pokemon bit fields
+; INPUT:
+; [wd11e] = pokedex number
+; hl = address of bit field
+IsPokemonBitSet:
+	ld a, [wd11e]
+	dec a
+	ld c, a
+	ld b, FLAG_TEST
+	predef FlagActionPredef
+	ld a, c
+	and a
+	ret
+
+; function to display pokedex data from outside the pokedex
+ShowPokedexData:
+	call GBPalWhiteOutWithDelay3
+	call ClearScreen
+	call UpdateSprites
+	callab LoadPokedexTilePatterns ; load pokedex tiles
+
+; function to display pokedex data from inside the pokedex
+ShowPokedexDataInternal:
+	ld hl, wd72c
+	set 1, [hl]
+	ld a, $33 ; 3/7 volume
+	ld [rNR50], a
+	call GBPalWhiteOut ; zero all palettes
+	call ClearScreen
+	ld a, [wd11e] ; pokemon ID
+	ld [wcf91], a
+	push af
+	ld b, SET_PAL_POKEDEX
+	call RunPaletteCommand
+	pop af
+	ld [wd11e], a
+	ld a, [hTilesetType]
+	push af
+	xor a
+	ld [hTilesetType], a
+
+	coord hl, 0, 0
+	ld de, 1
+	lb bc, $64, SCREEN_WIDTH
+	call DrawTileLine ; draw top border
+
+	coord hl, 0, 17
+	ld b, $6f
+	call DrawTileLine ; draw bottom border
+
+	coord hl, 0, 1
+	ld de, 20
+	lb bc, $66, $10
+	call DrawTileLine ; draw left border
+
+	coord hl, 19, 1
+	ld b, $67
+	call DrawTileLine ; draw right border
+
+	ld a, $63 ; upper left corner tile
+	Coorda 0, 0
+	ld a, $65 ; upper right corner tile
+	Coorda 19, 0
+	ld a, $6c ; lower left corner tile
+	Coorda 0, 17
+	ld a, $6e ; lower right corner tile
+	Coorda 19, 17
+
+	coord hl, 0, 9
+	ld de, PokedexDataDividerLine
+	call PlaceString ; draw horizontal divider line
+
+	coord hl, 9, 6
+	ld de, HeightWeightText
+	call PlaceString
+
+	call GetMonName
+	coord hl, 9, 2
+	call PlaceString
+
+	ld hl, PokedexEntryPointers
+	ld a, [wd11e]
+	dec a
+	ld e, a
+	ld d, 0
+	add hl, de
+	add hl, de
+	ld a, [hli]
+	ld e, a
+	ld d, [hl] ; de = address of pokedex entry
+
+	coord hl, 9, 4
+	call PlaceString ; print species name
+
+	ld h, b
+	ld l, c
+	push de
+	ld a, [wd11e]
+	push af
+	call IndexToPokedex
+
+	coord hl, 2, 8
+	ld a, "№"
+	ld [hli], a
+	ld a, "⠄"
+	ld [hli], a
+	ld de, wd11e
+	lb bc, LEADING_ZEROES | 1, 3
+	call PrintNumber ; print pokedex number
+
+	ld hl, wPokedexOwned
+	call IsPokemonBitSet
+	pop af
+	ld [wd11e], a
+	ld a, [wcf91]
+	ld [wd0b5], a
+	pop de
+
+	push af
+	push bc
+	push de
+	push hl
+
+	call Delay3
+	call GBPalNormal
+	call GetMonHeader ; load pokemon picture location
+	coord hl, 1, 1
+	call LoadFlippedFrontSpriteByMonIndex ; draw pokemon picture
+	ld a, [wcf91]
+	call PlayCry ; play pokemon cry
+
+	pop hl
+	pop de
+	pop bc
+	pop af
+
+	ld a, c
+	and a
+	jp z, .waitForButtonPress ; if the pokemon has not been owned, don't print the height, weight, or description
+	inc de ; de = address of feet (height)
+	ld a, [de] ; reads feet, but a is overwritten without being used
+	coord hl, 12, 6
+	lb bc, 1, 2
+	call PrintNumber ; print feet (height)
+	ld a, $60 ; feet symbol tile (one tick)
+	ld [hl], a
+	inc de
+	inc de ; de = address of inches (height)
+	coord hl, 15, 6
+	lb bc, LEADING_ZEROES | 1, 2
+	call PrintNumber ; print inches (height)
+	ld a, $61 ; inches symbol tile (two ticks)
+	ld [hl], a
+; now print the weight (note that weight is stored in tenths of pounds internally)
+	inc de
+	inc de
+	inc de ; de = address of upper byte of weight
+	push de
+; put weight in big-endian order at hDexWeight
+	ld hl, hDexWeight
+	ld a, [hl] ; save existing value of [hDexWeight]
+	push af
+	ld a, [de] ; a = upper byte of weight
+	ld [hli], a ; store upper byte of weight in [hDexWeight]
+	ld a, [hl] ; save existing value of [hDexWeight + 1]
+	push af
+	dec de
+	ld a, [de] ; a = lower byte of weight
+	ld [hl], a ; store lower byte of weight in [hDexWeight + 1]
+	ld de, hDexWeight
+	coord hl, 11, 8
+	lb bc, 2, 5 ; 2 bytes, 5 digits
+	call PrintNumber ; print weight
+	coord hl, 14, 8
+	ld a, [hDexWeight + 1]
+	sub 10
+	ld a, [hDexWeight]
+	sbc 0
+	jr nc, .next
+	ld [hl], "0" ; if the weight is less than 10, put a 0 before the decimal point
+.next
+	inc hl
+	ld a, [hli]
+	ld [hld], a ; make space for the decimal point by moving the last digit forward one tile
+	ld [hl], "⠄" ; decimal point tile
+	pop af
+	ld [hDexWeight + 1], a ; restore original value of [hDexWeight + 1]
+	pop af
+	ld [hDexWeight], a ; restore original value of [hDexWeight]
+	pop hl
+	inc hl ; hl = address of pokedex description text
+	coord bc, 1, 11
+	ld a, 2
+	ld [$fff4], a
+	call TextCommandProcessor ; print pokedex description text
+	xor a
+	ld [$fff4], a
+.waitForButtonPress
+	call JoypadLowSensitivity
+	ld a, [hJoy5]
+	and A_BUTTON | B_BUTTON
+	jr z, .waitForButtonPress
+	pop af
+	ld [hTilesetType], a
+	call GBPalWhiteOut
+	call ClearScreen
+	call RunDefaultPaletteCommand
+	call LoadTextBoxTilePatterns
+	call GBPalNormal
+	ld hl, wd72c
+	res 1, [hl]
+	ld a, $77 ; max volume
+	ld [rNR50], a
+	ret
+
+HeightWeightText:
+	db   "HT  ?",$60,"??",$61
+	next "WT   ???lb@"
+
+; XXX does anything point to this?
+PokeText:
+	db "#@"
+
+; horizontal line that divides the pokedex text description from the rest of the data
+PokedexDataDividerLine:
+	db $68,$69,$6B,$69,$6B
+	db $69,$6B,$69,$6B,$6B
+	db $6B,$6B,$69,$6B,$69
+	db $6B,$69,$6B,$69,$6A
+	db "@"
+
+; draws a line of tiles
+; INPUT:
+; b = tile ID
+; c = number of tile ID's to write
+; de = amount to destination address after each tile (1 for horizontal, 20 for vertical)
+; hl = destination address
+DrawTileLine:
+	push bc
+	push de
+.loop
+	ld [hl], b
+	add hl, de
+	dec c
+	jr nz, .loop
+	pop de
+	pop bc
+	ret
+
+INCLUDE "data/pokedex_entries.asm"
+
+PokedexToIndex:
+	; converts the Pokédex number at wd11e to an index
+	push bc
+	push hl
+	ld a, [wd11e]
+	ld b, a
+	ld c, 0
+	ld hl, PokedexOrder
+
+.loop ; go through the list until we find an entry with a matching dex number
+	inc c
+	ld a, [hli]
+	cp b
+	jr nz, .loop
+
+	ld a, c
+	ld [wd11e], a
+	pop hl
+	pop bc
+	ret
+
+IndexToPokedex:
+	; converts the index number at wd11e to a Pokédex number
+	push bc
+	push hl
+	ld a, [wd11e]
+	dec a
+	ld hl, PokedexOrder
+	ld b, 0
+	ld c, a
+	add hl, bc
+	ld a, [hl]
+	ld [wd11e], a
+	pop hl
+	pop bc
+	ret
+
+INCLUDE "data/pokedex_order.asm"