pokered/engine/menus/pokedex.asm
2020-11-29 20:17:29 +00:00

663 lines
13 KiB
NASM
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

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
ldh [hJoy7], a
.setUpGraphics
ld b, SET_PAL_GENERIC
call RunPaletteCommand
callfar 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
ldh [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
hlcoord 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
hlcoord 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
ldh [hAutoBGTransferEnabled], a
; draw the horizontal line separating the seen and owned amounts from the menu
hlcoord 15, 8
ld a, "─"
ld [hli], a
ld [hli], a
ld [hli], a
ld [hli], a
ld [hli], a
hlcoord 14, 0
ld [hl], $71 ; vertical line tile
hlcoord 14, 1
call DrawPokedexVerticalLine
hlcoord 14, 9
call DrawPokedexVerticalLine
ld hl, wPokedexSeen
ld b, wPokedexSeenEnd - wPokedexSeen
call CountSetBits
ld de, wNumSetBits
hlcoord 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
hlcoord 16, 6
lb bc, 1, 3
call PrintNumber ; print number of owned pokemon
hlcoord 16, 2
ld de, PokedexSeenText
call PlaceString
hlcoord 16, 5
ld de, PokedexOwnText
call PlaceString
hlcoord 1, 1
ld de, PokedexContentsText
call PlaceString
hlcoord 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
ldh [hAutoBGTransferEnabled], a
hlcoord 4, 2
lb bc, 14, 10
call ClearScreenArea
hlcoord 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
ldh [hAutoBGTransferEnabled], 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
callfar 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
ldh [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
ldh a, [hTileAnimations]
push af
xor a
ldh [hTileAnimations], a
hlcoord 0, 0
ld de, 1
lb bc, $64, SCREEN_WIDTH
call DrawTileLine ; draw top border
hlcoord 0, 17
ld b, $6f
call DrawTileLine ; draw bottom border
hlcoord 0, 1
ld de, 20
lb bc, $66, $10
call DrawTileLine ; draw left border
hlcoord 19, 1
ld b, $67
call DrawTileLine ; draw right border
ld a, $63 ; upper left corner tile
ldcoord_a 0, 0
ld a, $65 ; upper right corner tile
ldcoord_a 19, 0
ld a, $6c ; lower left corner tile
ldcoord_a 0, 17
ld a, $6e ; lower right corner tile
ldcoord_a 19, 17
hlcoord 0, 9
ld de, PokedexDataDividerLine
call PlaceString ; draw horizontal divider line
hlcoord 9, 6
ld de, HeightWeightText
call PlaceString
call GetMonName
hlcoord 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
hlcoord 9, 4
call PlaceString ; print species name
ld h, b
ld l, c
push de
ld a, [wd11e]
push af
call IndexToPokedex
hlcoord 2, 8
ld a, "№"
ld [hli], a
ld a, "<DOT>"
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
hlcoord 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
hlcoord 12, 6
lb bc, 1, 2
call PrintNumber ; print feet (height)
ld a, ""
ld [hl], a
inc de
inc de ; de = address of inches (height)
hlcoord 15, 6
lb bc, LEADING_ZEROES | 1, 2
call PrintNumber ; print inches (height)
ld a, "″"
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
hlcoord 11, 8
lb bc, 2, 5 ; 2 bytes, 5 digits
call PrintNumber ; print weight
hlcoord 14, 8
ldh a, [hDexWeight + 1]
sub 10
ldh 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], "<DOT>" ; decimal point tile
pop af
ldh [hDexWeight + 1], a ; restore original value of [hDexWeight + 1]
pop af
ldh [hDexWeight], a ; restore original value of [hDexWeight]
pop hl
inc hl ; hl = address of pokedex description text
bccoord 1, 11
ld a, %10
ldh [hClearLetterPrintingDelayFlags], a
call TextCommandProcessor ; print pokedex description text
xor a
ldh [hClearLetterPrintingDelayFlags], a
.waitForButtonPress
call JoypadLowSensitivity
ldh a, [hJoy5]
and A_BUTTON | B_BUTTON
jr z, .waitForButtonPress
pop af
ldh [hTileAnimations], a
call GBPalWhiteOut
call ClearScreen
call RunDefaultPaletteCommand
call LoadTextBoxTilePatterns
call GBPalNormal
ld hl, wd72c
res 1, [hl]
ld a, $77 ; max volume
ldh [rNR50], a
ret
HeightWeightText:
db "HT ???″"
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, $69, $6B, $69, $6B, $6B
db $6B, $6B, $69, $6B, $69, $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/pokemon/dex_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/pokemon/dex_order.asm"