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pokecrystal
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pokecrystal/engine/title.asm

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split title screen functions into engine/title.asm
2013-09-15 22:59:53 +00:00
_TitleScreen: ; 10ed67
call WhiteBGMap
call ClearSprites
call ClearTileMap
; Turn BG Map update off
xor a
ld [hBGMapMode], a
; Reset timing variables
ld hl, $cf63
ld [hli], a ; cf63 ; Scene?
ld [hli], a ; cf64
ld [hli], a ; cf65 ; Timer lo
ld [hl], a ; cf66 ; Timer hi
; Turn LCD off
call DisableLCD
; VRAM bank 1
ld a, 1
ld [rVBK], a
; Decompress running Suicune gfx
ld hl, TitleSuicuneGFX
ld de, VTiles1
call Decompress
; Clear screen palettes
ld hl, VBGMap0
ld bc, $0280
xor a
call ByteFill
; Fill tile palettes:
; BG Map 1:
; line 0 (copyright)
ld hl, VBGMap1
ld bc, $0020 ; one row
ld a, 7 ; palette
call ByteFill
; BG Map 0:
; Apply logo gradient:
; lines 3-4
ld hl, $9860 ; (0,3)
ld bc, $0040 ; 2 rows
ld a, 2
call ByteFill
; line 5
ld hl, $98a0 ; (0,5)
ld bc, $0020 ; 1 row
ld a, 3
call ByteFill
; line 6
ld hl, $98c0 ; (0,6)
ld bc, $0020 ; 1 row
ld a, 4
call ByteFill
; line 7
ld hl, $98e0 ; (0,7)
ld bc, $0020 ; 1 row
ld a, 5
call ByteFill
; lines 8-9
ld hl, $9900 ; (0,8)
ld bc, $0040 ; 2 rows
ld a, 6
call ByteFill
; 'CRYSTAL VERSION'
ld hl, $9925 ; (5,9)
ld bc, $000b ; length of version text
ld a, 1
call ByteFill
; Suicune gfx
ld hl, $9980 ; (0,12)
ld bc, $00c0 ; the rest of the screen
ld a, 8
call ByteFill
; Back to VRAM bank 0
ld a, $0
ld [rVBK], a
; Decompress logo
ld hl, TitleLogoGFX
ld de, VTiles1
call Decompress
; Decompress background crystal
ld hl, TitleCrystalGFX
ld de, VTiles0
call Decompress
; Clear screen tiles
ld hl, VBGMap0
ld bc, $0800
ld a, $7f
call ByteFill
; Draw Pokemon logo
ld hl, $c4dc ; TileMap(0,3)
ld bc, $0714 ; 20x7
ld d, $80
ld e, $14
Fix a title screen label that accidentally made its way into bank 1. Somehow, a title screen (bank 0x43) function had its label put in bank 1. This caused changes to either bank to break the compiled rom. fixes 61a3d145
2014-04-09 22:27:29 +00:00
call DrawTitleGraphic
split title screen functions into engine/title.asm
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; Draw copyright text
ld hl, $9c03 ; BGMap1(3,0)
ld bc, $010d ; 13x1
ld d, $c
ld e, $10
Fix a title screen label that accidentally made its way into bank 1. Somehow, a title screen (bank 0x43) function had its label put in bank 1. This caused changes to either bank to break the compiled rom. fixes 61a3d145
2014-04-09 22:27:29 +00:00
call DrawTitleGraphic
split title screen functions into engine/title.asm
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; Initialize running Suicune?
ld d, $0
call Function10eed2
; Initialize background crystal
call Function10ef06
; Save WRAM bank
ld a, [rSVBK]
push af
; WRAM bank 5
ld a, 5
ld [rSVBK], a
; Update palette colors
ld hl, TitleScreenPalettes
ld de, $d000
ld bc, $0080
call CopyBytes
ld hl, TitleScreenPalettes
ld de, $d080
ld bc, $0080
call CopyBytes
; Restore WRAM bank
pop af
ld [rSVBK], a
; LY/SCX trickery starts here
ld a, [rSVBK]
push af
ld a, 5 ; BANK(LYOverrides)
ld [rSVBK], a
; Make alternating lines come in from opposite sides
; ( This part is actually totally pointless, you can't
; see anything until these values are overwritten! )
ld b, 80 / 2 ; alternate for 80 lines
ld hl, LYOverrides
.loop
; $00 is the middle position
ld [hl], +112 ; coming from the left
inc hl
ld [hl], -112 ; coming from the right
inc hl
dec b
jr nz, .loop
; Make sure the rest of the buffer is empty
ld hl, LYOverrides + 80
xor a
ld bc, LYOverridesEnd - (LYOverrides + 80)
call ByteFill
; Let LCD Stat know we're messing around with SCX
ld a, rSCX - rJOYP
ld [hLCDStatCustom], a
pop af
ld [rSVBK], a
; Reset audio
call ChannelsOff
call EnableLCD
; Set sprite size to 8x16
ld a, [rLCDC]
set 2, a
ld [rLCDC], a
ld a, +112
ld [hSCX], a
ld a, 8
ld [hSCY], a
ld a, 7
ld [hWX], a
ld a, -112
ld [hWY], a
ld a, $1
ld [hCGBPalUpdate], a
; Update BG Map 0 (bank 0)
ld [hBGMapMode], a
xor a
ld [DefaultFlypoint], a
; Play starting sound effect
call SFXChannelsOff
ld de, SFX_TITLE_SCREEN_ENTRANCE
rename 'StartSFX' to 'PlaySFX'
2013-10-08 17:10:36 +00:00
call PlaySFX
split title screen functions into engine/title.asm
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ret
; 10eea7
Function10eea7: ; 10eea7
ld hl, DefaultFlypoint
ld a, [hl]
ld c, a
inc [hl]
and $7
ret nz
ld a, c
and $18
sla a
swap a
ld e, a
ld d, $0
Compressed title screen graphics are padded too.
2014-03-04 05:12:57 +00:00
ld hl, Unknown_10eece
split title screen functions into engine/title.asm
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add hl, de
ld d, [hl]
xor a
ld [hBGMapMode], a
call Function10eed2
ld a, $1
ld [hBGMapMode], a
ld a, $3
ld [hBGMapThird], a
ret
; 10eece
Compressed title screen graphics are padded too.
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Unknown_10eece: ; 10eece
db $80, $88, $00, $08
; 10eed2
split title screen functions into engine/title.asm
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Function10eed2: ; 10eed2
ld hl, $c596
ld b, $6
.asm_10eed7
ld c, $8
.asm_10eed9
ld a, d
ld [hli], a
inc d
dec c
jr nz, .asm_10eed9
ld a, $c
add l
ld l, a
ld a, $0
adc h
ld h, a
ld a, $8
add d
ld d, a
dec b
jr nz, .asm_10eed7
ret
; 10eeef
Fix a title screen label that accidentally made its way into bank 1. Somehow, a title screen (bank 0x43) function had its label put in bank 1. This caused changes to either bank to break the compiled rom. fixes 61a3d145
2014-04-09 22:27:29 +00:00
DrawTitleGraphic: ; 10eeef
; input:
; hl: draw location
; b: height
; c: width
; d: tile to start drawing from
; e: number of tiles to advance for each row
split title screen functions into engine/title.asm
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.asm_10eeef
push de
push bc
push hl
.asm_10eef2
ld a, d
ld [hli], a
inc d
dec c
jr nz, .asm_10eef2
pop hl
ld bc, $0014
add hl, bc
pop bc
pop de
ld a, e
add d
ld d, a
dec b
jr nz, .asm_10eeef
ret
; 10ef06
Function10ef06: ; 10ef06
ld hl, Sprites
ld d, $de
ld e, $0
ld c, $5
.asm_10ef0f
push bc
call Function10ef1c
pop bc
ld a, $10
add d
ld d, a
dec c
jr nz, .asm_10ef0f
ret
; 10ef1c
Function10ef1c: ; 10ef1c
ld c, $6
ld b, $40
.asm_10ef20
ld a, d
ld [hli], a
ld a, b
ld [hli], a
add $8
ld b, a
ld a, e
ld [hli], a
inc e
inc e
ld a, $80
ld [hli], a
dec c
jr nz, .asm_10ef20
ret
; 10ef32
AnimateTitleCrystal: ; 10ef32
; Move the title screen crystal downward until it's fully visible
; Stop at y=6
; y is really from the bottom of the sprite, which is two tiles high
ld hl, Sprites
ld a, [hl]
cp 6 + 16
ret z
; Move all 30 parts of the crystal down by 2
ld c, 30
.loop
ld a, [hl]
add 2
ld [hli], a
inc hl
inc hl
inc hl
dec c
jr nz, .loop
ret
; 10ef46
TitleSuicuneGFX: ; 10ef46
Image extensions in gfx/{intro,title}.
2014-04-02 04:37:12 +00:00
INCBIN "gfx/title/suicune.w128.2bpp.lz"
Compressed title screen graphics are padded too.
2014-03-04 05:12:57 +00:00
; 10f326
split title screen functions into engine/title.asm
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TitleLogoGFX: ; 10f326
Image extensions in gfx/{intro,title}.
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INCBIN "gfx/title/logo.w160.t4.2bpp.lz"
Compressed title screen graphics are padded too.
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; 10fcee
split title screen functions into engine/title.asm
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TitleCrystalGFX: ; 10fcee
Image extensions in gfx/{intro,title}.
2014-04-02 04:37:12 +00:00
INCBIN "gfx/title/crystal.w48.interleave.2bpp.lz"
Compressed title screen graphics are padded too.
2014-03-04 05:12:57 +00:00
; 10fede
split title screen functions into engine/title.asm
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TitleScreenPalettes:
; BG
RGB 00, 00, 00
RGB 19, 00, 00
RGB 15, 08, 31
RGB 15, 08, 31
RGB 00, 00, 00
RGB 31, 31, 31
RGB 15, 16, 31
RGB 31, 01, 13
RGB 00, 00, 00
RGB 07, 07, 07
RGB 31, 31, 31
RGB 02, 03, 30
RGB 00, 00, 00
RGB 13, 13, 13
RGB 31, 31, 18
RGB 02, 03, 30
RGB 00, 00, 00
RGB 19, 19, 19
RGB 29, 28, 12
RGB 02, 03, 30
RGB 00, 00, 00
RGB 25, 25, 25
RGB 28, 25, 06
RGB 02, 03, 30
RGB 00, 00, 00
RGB 31, 31, 31
RGB 26, 21, 00
RGB 02, 03, 30
RGB 00, 00, 00
RGB 11, 11, 19
RGB 31, 31, 31
RGB 00, 00, 00
; OBJ
RGB 00, 00, 00
RGB 10, 00, 15
RGB 17, 05, 22
RGB 19, 09, 31
RGB 31, 31, 31
RGB 00, 00, 00
RGB 00, 00, 00
RGB 00, 00, 00
RGB 31, 31, 31
RGB 00, 00, 00
RGB 00, 00, 00
RGB 00, 00, 00
RGB 31, 31, 31
RGB 00, 00, 00
RGB 00, 00, 00
RGB 00, 00, 00
RGB 31, 31, 31
RGB 00, 00, 00
RGB 00, 00, 00
RGB 00, 00, 00
RGB 31, 31, 31
RGB 00, 00, 00
RGB 00, 00, 00
RGB 00, 00, 00
RGB 31, 31, 31
RGB 00, 00, 00
RGB 00, 00, 00
RGB 00, 00, 00
RGB 31, 31, 31
RGB 00, 00, 00
RGB 00, 00, 00
RGB 00, 00, 00