diff options
Diffstat (limited to 'engine/title.asm')
| -rw-r--r-- | engine/title.asm | 84 |
1 files changed, 45 insertions, 39 deletions
diff --git a/engine/title.asm b/engine/title.asm index 675bab2f3..8296641dc 100644 --- a/engine/title.asm +++ b/engine/title.asm @@ -9,7 +9,7 @@ _TitleScreen: ; 10ed67 ld [hBGMapMode], a ; Reset timing variables - ld hl, wcf63 + ld hl, wJumptableEntryIndexBuffer ld [hli], a ; cf63 ; Scene? ld [hli], a ; cf64 ld [hli], a ; cf65 ; Timer lo @@ -130,10 +130,10 @@ _TitleScreen: ; 10ed67 ; Initialize running Suicune? ld d, $0 - call Function10eed2 + call LoadSuicuneFrame ; Initialize background crystal - call Function10ef06 + call InitializeBackground ; Save WRAM bank ld a, [rSVBK] @@ -145,12 +145,12 @@ _TitleScreen: ; 10ed67 ; Update palette colors ld hl, TitleScreenPalettes ld de, Unkn1Pals - ld bc, $0080 + ld bc, 4 * 32 call CopyBytes ld hl, TitleScreenPalettes ld de, BGPals - ld bc, $0080 + ld bc, 4 * 32 call CopyBytes ; Restore WRAM bank @@ -220,7 +220,7 @@ _TitleScreen: ; 10ed67 ld [hBGMapMode], a xor a - ld [DefaultFlypoint], a + ld [UnknPals1 + 2], a ; Play starting sound effect call SFXChannelsOff @@ -230,25 +230,28 @@ _TitleScreen: ; 10ed67 ret ; 10eea7 -Function10eea7: ; 10eea7 - ld hl, DefaultFlypoint +SuicuneFrameIterator: ; 10eea7 + ld hl, UnknPals1 + 2 ld a, [hl] ld c, a inc [hl] - and $7 + +; Only do this once every eight frames + and (1 << 3) - 1 ret nz + ld a, c - and $18 + and 3 << 3 sla a swap a ld e, a ld d, $0 - ld hl, Unknown_10eece + ld hl, .Frames add hl, de ld d, [hl] xor a ld [hBGMapMode], a - call Function10eed2 + call LoadSuicuneFrame ld a, $1 ld [hBGMapMode], a ld a, $3 @@ -256,33 +259,36 @@ Function10eea7: ; 10eea7 ret ; 10eece -Unknown_10eece: ; 10eece - db $80, $88, $00, $08 +.Frames: ; 10eece + db $80 ; VTiles4 tile $00 + db $88 ; VTiles4 tile $08 + db $00 ; VTiles5 tile $00 + db $08 ; VTiles5 tile $08 ; 10eed2 -Function10eed2: ; 10eed2 +LoadSuicuneFrame: ; 10eed2 hlcoord 6, 12 - ld b, $6 -.asm_10eed7 - ld c, $8 -.asm_10eed9 + ld b, 6 +.row + ld c, 8 +.col ld a, d ld [hli], a inc d dec c - jr nz, .asm_10eed9 - ld a, $c + jr nz, .col + ld a, SCREEN_WIDTH - 8 add l ld l, a - ld a, $0 + ld a, 0 adc h ld h, a - ld a, $8 + ld a, 8 add d ld d, a dec b - jr nz, .asm_10eed7 + jr nz, .row ret ; 10eeef @@ -293,18 +299,18 @@ DrawTitleGraphic: ; 10eeef ; c: width ; d: tile to start drawing from ; e: number of tiles to advance for each row -.asm_10eeef +.row push de push bc push hl -.asm_10eef2 +.col ld a, d ld [hli], a inc d dec c - jr nz, .asm_10eef2 + jr nz, .col pop hl - ld bc, $0014 + ld bc, SCREEN_WIDTH add hl, bc pop bc pop de @@ -312,31 +318,31 @@ DrawTitleGraphic: ; 10eeef add d ld d, a dec b - jr nz, .asm_10eeef + jr nz, .row ret ; 10ef06 -Function10ef06: ; 10ef06 +InitializeBackground: ; 10ef06 ld hl, Sprites - ld d, $de + ld d, -$22 ld e, $0 - ld c, $5 -.asm_10ef0f + ld c, 5 +.loop push bc - call Function10ef1c + call .InitColumn pop bc ld a, $10 add d ld d, a dec c - jr nz, .asm_10ef0f + jr nz, .loop ret ; 10ef1c -Function10ef1c: ; 10ef1c +.InitColumn: ; 10ef1c ld c, $6 ld b, $40 -.asm_10ef20 +.loop ld a, d ld [hli], a ld a, b @@ -351,7 +357,7 @@ endr ld a, $80 ld [hli], a dec c - jr nz, .asm_10ef20 + jr nz, .loop ret ; 10ef32 @@ -363,7 +369,7 @@ AnimateTitleCrystal: ; 10ef32 ; y is really from the bottom of the sprite, which is two tiles high ld hl, Sprites ld a, [hl] - cp 6 + 16 + cp 6 + $10 ret z ; Move all 30 parts of the crystal down by 2 |