pokecrystal/home/fade.asm

128 lines
2.5 KiB
NASM

; Functions to fade the screen in and out.
Unreferenced_Function48c::
; TimeOfDayFade
ld a, [wTimeOfDayPal]
ld b, a
ld hl, IncGradGBPalTable_11
ld a, l
sub b
ld l, a
jr nc, .okay
dec h
.okay
ld a, [hli]
ldh [rBGP], a
ld a, [hli]
ldh [rOBP0], a
ld a, [hli]
ldh [rOBP1], a
ret
RotateFourPalettesRight::
ldh a, [hCGB]
and a
jr z, .dmg
ld hl, IncGradGBPalTable_00
ld b, 4
jr RotatePalettesRight
.dmg
ld hl, IncGradGBPalTable_08
ld b, 4
jr RotatePalettesRight
RotateThreePalettesRight::
ldh a, [hCGB]
and a
jr z, .dmg
ld hl, IncGradGBPalTable_05
ld b, 3
jr RotatePalettesRight
.dmg
ld hl, IncGradGBPalTable_13
ld b, 3
RotatePalettesRight::
; Rotate palettes to the right and fill with loaded colors from the left
; If we're already at the leftmost color, fill with the leftmost color
push de
ld a, [hli]
call DmgToCgbBGPals
ld a, [hli]
ld e, a
ld a, [hli]
ld d, a
call DmgToCgbObjPals
ld c, 8
call DelayFrames
pop de
dec b
jr nz, RotatePalettesRight
ret
RotateFourPalettesLeft::
ldh a, [hCGB]
and a
jr z, .dmg
ld hl, IncGradGBPalTable_04 - 1
ld b, 4
jr RotatePalettesLeft
.dmg
ld hl, IncGradGBPalTable_12 - 1
ld b, 4
jr RotatePalettesLeft
RotateThreePalettesLeft::
ldh a, [hCGB]
and a
jr z, .dmg
ld hl, IncGradGBPalTable_07 - 1
ld b, 3
jr RotatePalettesLeft
.dmg
ld hl, IncGradGBPalTable_15 - 1
ld b, 3
RotatePalettesLeft::
; Rotate palettes to the left and fill with loaded colors from the right
; If we're already at the rightmost color, fill with the rightmost color
push de
ld a, [hld]
ld d, a
ld a, [hld]
ld e, a
call DmgToCgbObjPals
ld a, [hld]
call DmgToCgbBGPals
ld c, 8
call DelayFrames
pop de
dec b
jr nz, RotatePalettesLeft
ret
IncGradGBPalTable_00:: dc 3,3,3,3, 3,3,3,3, 3,3,3,3
IncGradGBPalTable_01:: dc 3,3,3,2, 3,3,3,2, 3,3,3,2
IncGradGBPalTable_02:: dc 3,3,2,1, 3,3,2,1, 3,3,2,1
IncGradGBPalTable_03:: dc 3,2,1,0, 3,2,1,0, 3,2,1,0
IncGradGBPalTable_04:: dc 3,2,1,0, 3,2,1,0, 3,2,1,0
IncGradGBPalTable_05:: dc 2,1,0,0, 2,1,0,0, 2,1,0,0
IncGradGBPalTable_06:: dc 1,0,0,0, 1,0,0,0, 1,0,0,0
IncGradGBPalTable_07:: dc 0,0,0,0, 0,0,0,0, 0,0,0,0
; bgp obp1 obp2
IncGradGBPalTable_08:: dc 3,3,3,3, 3,3,3,3, 3,3,3,3
IncGradGBPalTable_09:: dc 3,3,3,2, 3,3,3,2, 3,3,2,0
IncGradGBPalTable_10:: dc 3,3,2,1, 3,2,1,0, 3,2,1,0
IncGradGBPalTable_11:: dc 3,2,1,0, 3,1,0,0, 3,2,0,0
IncGradGBPalTable_12:: dc 3,2,1,0, 3,1,0,0, 3,2,0,0
IncGradGBPalTable_13:: dc 2,1,0,0, 2,0,0,0, 2,1,0,0
IncGradGBPalTable_14:: dc 1,0,0,0, 1,0,0,0, 1,0,0,0
IncGradGBPalTable_15:: dc 0,0,0,0, 0,0,0,0, 0,0,0,0