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