mirror of
https://github.com/pret/pokeyellow.git
synced 2026-05-11 05:05:21 -05:00
155 lines
2.6 KiB
NASM
Executable File
155 lines
2.6 KiB
NASM
Executable File
MOVE_GENGAR_RIGHT EQU $00
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MOVE_GENGAR_LEFT EQU $01
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MOVE_NIDORINO_RIGHT EQU $ff
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PlayIntro:
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xor a
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ld [hJoyHeld], a
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inc a
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ld [H_AUTOBGTRANSFERENABLED], a
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call PlayShootingStar
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callab PlayIntroScene
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xor a
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ld [hSCX], a
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ld [H_AUTOBGTRANSFERENABLED], a
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call ClearSprites
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call DelayFrame
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ret
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InitIntroNidorinoOAM:
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ld hl, wOAMBuffer
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ld d, 0
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.loop
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push bc
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ld a, [wBaseCoordY]
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ld e, a
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.innerLoop
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ld a, e
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add 8
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ld e, a
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ld [hli], a ; Y
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ld a, [wBaseCoordX]
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ld [hli], a ; X
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ld a, d
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ld [hli], a ; tile
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ld a, $80
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ld [hli], a ; attributes
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inc d
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dec c
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jr nz, .innerLoop
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ld a, [wBaseCoordX]
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add 8
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ld [wBaseCoordX], a
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pop bc
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dec b
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jr nz, .loop
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ret
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IntroClearScreen:
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ld hl, vBGMap1
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ld bc, $240
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jr IntroClearCommon
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IntroClearMiddleOfScreen:
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; clear the area of the tile map between the black bars on the top and bottom
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coord hl, 0, 4
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ld bc, SCREEN_WIDTH * 10
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IntroClearCommon:
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ld [hl], $0
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inc hl
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dec bc
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ld a, b
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or c
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jr nz, IntroClearCommon
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ret
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IntroPlaceBlackTiles:
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ld a, $1
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.loop
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ld [hli], a
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dec c
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jr nz, .loop
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ret
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CopyTileIDsFromList_ZeroBaseTileID:
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ld c, 0
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predef_jump CopyTileIDsFromList
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PlayShootingStar:
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ld b, SET_PAL_GAME_FREAK_INTRO
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call RunPaletteCommand
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callba LoadCopyrightAndTextBoxTiles
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ld a, %11100100
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ld [rBGP], a
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call UpdateGBCPal_BGP
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ld c, 180
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call DelayFrames
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call ClearScreen
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call DisableLCD
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xor a
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ld [wCurOpponent], a
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call IntroDrawBlackBars
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; write the black and white tiles
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ld hl, vChars2
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ld bc, $10
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xor a
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call FillMemory
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ld hl, vChars2 + $10
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ld bc, $10
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ld a, $ff
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call FillMemory
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; copy gamefreak logo and others
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ld hl, GameFreakIntro
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ld de, vChars2 + $600
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ld bc, GameFreakIntroEnd - GameFreakIntro
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ld a, BANK(GameFreakIntro)
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call FarCopyData
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ld hl, GameFreakIntro
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ld de, vChars1
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ld bc, GameFreakIntroEnd - GameFreakIntro
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ld a, BANK(GameFreakIntro)
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call FarCopyData
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call EnableLCD
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ld hl, rLCDC
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res 5, [hl]
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set 3, [hl]
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ld c, 64
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call DelayFrames
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callba AnimateShootingStar
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push af
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pop af
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jr c, .next ; skip the delay if the user interrupted the animation
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ld c, 40
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call DelayFrames
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.next
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call IntroClearMiddleOfScreen
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call ClearSprites
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jp Delay3
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IntroDrawBlackBars:
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; clear the screen and draw black bars on the top and bottom
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call IntroClearScreen
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coord hl, 0, 0
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ld c, SCREEN_WIDTH * 4
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call IntroPlaceBlackTiles
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coord hl, 0, 14
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ld c, SCREEN_WIDTH * 4
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call IntroPlaceBlackTiles
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ld hl, vBGMap1
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ld c, $80
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call IntroPlaceBlackTiles
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ld hl, vBGMap1 + $1c0
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ld c, $80
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jp IntroPlaceBlackTiles
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EmptyFunc4:
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ret
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GameFreakIntro:
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INCBIN "gfx/gamefreak_intro.2bpp"
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INCBIN "gfx/gamefreak_logo.2bpp"
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ds $10 ; blank tile
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GameFreakIntroEnd:
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