pokered/engine/titlescreen.asm
2015-07-12 16:37:06 -07:00

390 lines
7 KiB
NASM
Executable file

; copy text of fixed length $b (like player name, rival name, mon names, ...)
CopyFixedLengthText: ; 42b1 (1:42b1)
ld bc, $b
jp CopyData
SetDefaultNamesBeforeTitlescreen: ; 42b7 (1:42b7)
ld hl, NintenText
ld de, wPlayerName
call CopyFixedLengthText
ld hl, SonyText
ld de, W_RIVALNAME
call CopyFixedLengthText
xor a
ld [hWY], a
ld [wd358], a
ld hl, wd732
ld [hli], a
ld [hli], a
ld [hl], a
ld a, BANK(Music_TitleScreen)
ld [wc0ef], a
ld [wc0f0], a
LoadTitlescreenGraphics: ; 42dd (1:42dd)
call GBPalWhiteOut
ld a, $1
ld [H_AUTOBGTRANSFERENABLED], a
xor a
ld [hTilesetType], a
ld [hSCX], a
ld a, $40
ld [hSCY], a
ld a, $90
ld [hWY], a
call ClearScreen
call DisableLCD
call LoadFontTilePatterns
ld hl, NintendoCopyrightLogoGraphics
ld de, vTitleLogo2 + $100
ld bc, $50
ld a, BANK(NintendoCopyrightLogoGraphics)
call FarCopyData2
ld hl, GamefreakLogoGraphics
ld de, vTitleLogo2 + $100 + $50
ld bc, $90
ld a, BANK(GamefreakLogoGraphics)
call FarCopyData2
ld hl, PokemonLogoGraphics
ld de, vTitleLogo
ld bc, $600
ld a, BANK(PokemonLogoGraphics)
call FarCopyData2 ; first chunk
ld hl, PokemonLogoGraphics+$600
ld de, vTitleLogo2
ld bc, $100
ld a, BANK(PokemonLogoGraphics)
call FarCopyData2 ; second chunk
ld hl, Version_GFX
IF DEF(_RED)
ld de,vChars2 + $600
ld bc,$50
ENDC
IF DEF(_BLUE)
ld de,vChars2 + $600 + $10
ld bc,$50 - $10
ENDC
ld a, BANK(Version_GFX)
call FarCopyDataDouble
call Func_4519
hlCoord 2, 1
ld a, $80
ld de, $14
ld c, $6
.asm_434d
ld b, $10
push hl
.asm_4350
ld [hli], a
inc a
dec b
jr nz, .asm_4350
pop hl
add hl, de
dec c
jr nz, .asm_434d
hlCoord 2, 7
ld a, $31
ld b, $10
.asm_4361
ld [hli], a
inc a
dec b
jr nz, .asm_4361
call Func_44dd
ld hl, wOAMBuffer + $28
ld a, $74
ld [hl], a
hlCoord 2, 17
ld de, .titlescreenTilemap
ld b, $10
.asm_4377
ld a, [de]
ld [hli], a
inc de
dec b
jr nz, .asm_4377
jr .asm_438f
.titlescreenTilemap ; 437f (1:437f)
db $41,$42,$43,$42,$44,$42,$45,$46,$47,$48,$49,$4A,$4B,$4C,$4D,$4E ; ©'95.'96.'98 GAME FREAK inc.
.asm_438f
call SaveScreenTilesToBuffer2
call LoadScreenTilesFromBuffer2
call EnableLCD
IF DEF(_RED)
ld a,CHARMANDER ; which Pokemon to show first on the title screen
ENDC
IF DEF(_BLUE)
ld a,SQUIRTLE ; which Pokemon to show first on the title screen
ENDC
ld [wWhichTrade], a
call Func_4524
ld a, $9b
call Func_4533
call SaveScreenTilesToBuffer1
ld a, $40
ld [hWY], a
call LoadScreenTilesFromBuffer2
ld a, $98
call Func_4533
ld b, $6
call GoPAL_SET
call GBPalNormal
ld a, $e4
ld [rOBP0], a
ld bc, $ffaf ; background scroll Y
ld hl, .TitleScreenPokemonLogoYScrolls
.asm_43c6
ld a, [hli]
and a
jr z, .asm_43f4
ld d, a
cp $fd
jr nz, .asm_43d4
ld a, (SFX_1f_62 - SFX_Headers_1f) / 3
call PlaySound
.asm_43d4
ld a, [hli]
ld e, a
call .ScrollTitleScreenPokemonLogo
jr .asm_43c6
.TitleScreenPokemonLogoYScrolls: ; 43db (1:43db)
; Controls the bouncing effect of the Pokemon logo on the title screen
db -4,16 ; y scroll amount, number of times to scroll
db 3,4
db -3,4
db 2,2
db -2,2
db 1,2
db -1,2
db 0 ; terminate list with 0
.ScrollTitleScreenPokemonLogo
; Scrolls the Pokemon logo on the title screen to create the bouncing effect
; Scrolls d pixels e times
call DelayFrame
ld a, [bc]
add d
ld [bc], a
dec e
jr nz, .ScrollTitleScreenPokemonLogo
ret
.asm_43f4
call LoadScreenTilesFromBuffer1
ld c, 36
call DelayFrames
ld a, (SFX_1f_63 - SFX_Headers_1f) / 3
call PlaySound
call PrintGameVersionOnTitleScreen
ld a, $90
ld [hWY], a
ld d, $90
.asm_440a
ld h, d
ld l, $40
call Func_44cf
ld h, $0
ld l, $50
call Func_44cf
ld a, d
add $4
ld d, a
and a
jr nz, .asm_440a
ld a, $9c
call Func_4533
call LoadScreenTilesFromBuffer2
call PrintGameVersionOnTitleScreen
call Delay3
call WaitForSoundToFinish
ld a, MUSIC_TITLE_SCREEN
ld [wc0ee], a
call PlaySound
xor a
ld [wcc5b], a
.asm_443b
ld c, $c8
call CheckForUserInterruption
jr c, .asm_4459
call Func_44c1
ld c, $1
call CheckForUserInterruption
jr c, .asm_4459
callba Func_372ac
call Func_4496
jr .asm_443b
.asm_4459
ld a, [wWhichTrade]
call PlayCry
call WaitForSoundToFinish
call GBPalWhiteOutWithDelay3
call ClearSprites
xor a
ld [hWY], a
inc a
ld [H_AUTOBGTRANSFERENABLED], a
call ClearScreen
ld a, $98
call Func_4533
ld a, $9c
call Func_4533
call Delay3
call LoadGBPal
ld a, [hJoyHeld]
ld b, a
and D_UP | SELECT | B_BUTTON
cp D_UP | SELECT | B_BUTTON
jp z, .doClearSaveDialogue
jp MainMenu
.doClearSaveDialogue
ld b, BANK(DoClearSaveDialogue)
ld hl, DoClearSaveDialogue
jp Bankswitch
Func_4496: ; 4496 (1:4496)
ld a, $98
call Func_4533
.new
; Generate a new TitleMon.
call Random
and $f
ld c, a
ld b, 0
ld hl, TitleMons
add hl, bc
ld a, [hl]
ld hl, wWhichTrade
; Can't be the same as before.
cp [hl]
jr z, .new
ld [hl], a
call Func_4524
ld a, $90
ld [hWY], a
ld d, 1 ; scroll out
callba TitleScroll
ret
Func_44c1: ; 44c1 (1:44c1)
ld d, 0 ; scroll in
callba TitleScroll
xor a
ld [hWY], a
ret
Func_44cf: ; 44cf (1:44cf)
.wait
ld a, [$ff44] ; rLY
cp l
jr nz, .wait
ld a, h
ld [rSCX], a
.wait2
ld a, [$ff44] ; rLY
cp h
jr z, .wait2
ret
Func_44dd: ; 44dd (1:44dd)
ld hl, PlayerCharacterTitleGraphics
ld de, vSprites
ld bc, $230
ld a, BANK(PlayerCharacterTitleGraphics)
call FarCopyData2
call ClearSprites
xor a
ld [wWhichTrade], a
ld hl, wOAMBuffer
ld de, $605a
ld b, $7
.asm_44fa
push de
ld c, $5
.asm_44fd
ld a, d
ld [hli], a
ld a, e
ld [hli], a
add $8
ld e, a
ld a, [wWhichTrade]
ld [hli], a
inc a
ld [wWhichTrade], a
inc hl
dec c
jr nz, .asm_44fd
pop de
ld a, $8
add d
ld d, a
dec b
jr nz, .asm_44fa
ret
Func_4519: ; 4519 (1:4519)
ld hl, vBGMap0
ld bc, $800
ld a, $7f
jp FillMemory
Func_4524: ; 4524 (1:4524)
ld [wcf91], a
ld [wd0b5], a
hlCoord 5, 10
call GetMonHeader
jp LoadFrontSpriteByMonIndex
Func_4533: ; 4533 (1:4533)
ld [H_AUTOBGTRANSFERDEST + 1], a
jp Delay3
LoadCopyrightAndTextBoxTiles: ; 4538 (1:4538)
xor a
ld [hWY], a
call ClearScreen
call LoadTextBoxTilePatterns
LoadCopyrightTiles: ; 4541 (1:4541)
ld de, NintendoCopyrightLogoGraphics
ld hl, vChars2 + $600
ld bc, (BANK(NintendoCopyrightLogoGraphics) << 8) + $1c
call CopyVideoData
hlCoord 2, 7
ld de, CopyrightTextString
jp PlaceString
CopyrightTextString: ; 4556 (1:4556)
db $60,$61,$62,$61,$63,$61,$64,$7F,$65,$66,$67,$68,$69,$6A ; ©'95.'96.'98 Nintendo
next $60,$61,$62,$61,$63,$61,$64,$7F,$6B,$6C,$6D,$6E,$6F,$70,$71,$72 ; ©'95.'96.'98 Creatures inc.
next $60,$61,$62,$61,$63,$61,$64,$7F,$73,$74,$75,$76,$77,$78,$79,$7A,$7B ; ©'95.'96.'98 GAME FREAK inc.
db "@"
INCLUDE "data/title_mons.asm"
; prints version text (red, blue)
PrintGameVersionOnTitleScreen: ; 4598 (1:4598)
hlCoord 7, 8
ld de, VersionOnTitleScreenText
jp PlaceString
; these point to special tiles specifically loaded for that purpose and are not usual text
VersionOnTitleScreenText: ; 45a1 (1:45a1)
IF DEF(_RED)
db $60,$61,$7F,$65,$66,$67,$68,$69,"@" ; "Red Version"
ENDC
IF DEF(_BLUE)
db $61,$62,$63,$64,$65,$66,$67,$68,"@" ; "Blue Version"
ENDC