mirror of https://github.com/pret/pokecrystal.git
392 lines
5.5 KiB
NASM
392 lines
5.5 KiB
NASM
DummyPredef35:
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DummyPredef36:
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ret
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UpdateTimeOfDayPal::
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call UpdateTime
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ld a, [wTimeOfDay]
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ld [wCurTimeOfDay], a
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call GetTimePalette
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ld [wTimeOfDayPal], a
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ret
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_TimeOfDayPals::
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; return carry if pals are changed
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; forced pals?
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ld hl, wTimeOfDayPalFlags
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bit 7, [hl]
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jr nz, .dontchange
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; do we need to bother updating?
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ld a, [wTimeOfDay]
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ld hl, wCurTimeOfDay
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cp [hl]
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jr z, .dontchange
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; if so, the time of day has changed
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ld a, [wTimeOfDay]
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ld [wCurTimeOfDay], a
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; get palette id
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call GetTimePalette
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; same palette as before?
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ld hl, wTimeOfDayPal
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cp [hl]
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jr z, .dontchange
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; update palette id
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ld [wTimeOfDayPal], a
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; save bg palette 7
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ld hl, wBGPals1 palette PAL_BG_TEXT
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; save wram bank
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ld a, [rSVBK]
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ld b, a
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ld a, BANK(wBGPals1)
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ld [rSVBK], a
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; push palette
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ld c, NUM_PAL_COLORS
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.push
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ld d, [hl]
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inc hl
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ld e, [hl]
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inc hl
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push de
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dec c
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jr nz, .push
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; restore wram bank
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ld a, b
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ld [rSVBK], a
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; update sgb pals
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ld b, SCGB_MAPPALS
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call GetSGBLayout
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; restore bg palette 7
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ld hl, wOBPals1 - 1 ; last byte in wBGPals1
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; save wram bank
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ld a, [rSVBK]
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ld d, a
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ld a, BANK(wOBPals1)
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ld [rSVBK], a
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; pop palette
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ld e, NUM_PAL_COLORS
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.pop
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pop bc
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ld [hl], c
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dec hl
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ld [hl], b
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dec hl
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dec e
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jr nz, .pop
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; restore wram bank
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ld a, d
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ld [rSVBK], a
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; update palettes
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call _UpdateTimePals
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call DelayFrame
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; successful change
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scf
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ret
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.dontchange
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; no change occurred
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and a
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ret
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_UpdateTimePals::
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ld c, $9 ; normal
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call GetTimePalFade
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call DmgToCgbTimePals
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ret
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FadeInPalettes::
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ld c, $12
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call GetTimePalFade
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ld b, $4
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call ConvertTimePalsDecHL
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ret
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FadeOutPalettes::
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call FillWhiteBGColor
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ld c, $9
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call GetTimePalFade
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ld b, $4
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call ConvertTimePalsIncHL
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ret
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BattleTowerFade:
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call FillWhiteBGColor
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ld c, $9
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call GetTimePalFade
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ld b, $4
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.asm_8c09c
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call DmgToCgbTimePals
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inc hl
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inc hl
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inc hl
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ld c, $7
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call DelayFrames
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dec b
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jr nz, .asm_8c09c
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ret
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FadeInQuickly:
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ld c, $0
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call GetTimePalFade
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ld b, $4
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call ConvertTimePalsIncHL
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ret
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FadeBlackQuickly:
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ld c, $9
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call GetTimePalFade
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ld b, $4
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call ConvertTimePalsDecHL
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ret
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FillWhiteBGColor:
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ld a, [rSVBK]
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push af
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ld a, BANK(wBGPals1)
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ld [rSVBK], a
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ld hl, wBGPals1
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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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ld hl, wBGPals1 + 1 palettes
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ld c, 6
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.loop
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ld a, e
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ld [hli], a
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ld a, d
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ld [hli], a
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rept 6
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inc hl
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endr
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dec c
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jr nz, .loop
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pop af
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ld [rSVBK], a
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ret
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ReplaceTimeOfDayPals:
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ld hl, .BrightnessLevels
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ld a, [wMapTimeOfDay]
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cp $4 ; Dark cave, needs Flash
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jr z, .DarkCave
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and $7
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add l
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ld l, a
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ld a, $0
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adc h
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ld h, a
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ld a, [hl]
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ld [wTimeOfDayPalset], a
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ret
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.DarkCave:
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ld a, [wStatusFlags]
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bit STATUSFLAGS_FLASH_F, a
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jr nz, .UsedFlash
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ld a, %11111111 ; 3, 3, 3, 3
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ld [wTimeOfDayPalset], a
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ret
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.UsedFlash:
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ld a, %10101010 ; 2, 2, 2, 2
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ld [wTimeOfDayPalset], a
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ret
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.BrightnessLevels:
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dc 3, 2, 1, 0
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dc 1, 1, 1, 1
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dc 2, 2, 2, 2
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dc 0, 0, 0, 0
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dc 3, 3, 3, 3
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dc 3, 2, 1, 0
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dc 3, 2, 1, 0
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dc 3, 2, 1, 0
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GetTimePalette:
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ld a, [wTimeOfDay]
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ld e, a
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ld d, 0
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ld hl, .TimePalettes
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add hl, de
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add hl, de
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ld a, [hli]
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ld h, [hl]
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ld l, a
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jp hl
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.TimePalettes:
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dw .MorningPalette
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dw .DayPalette
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dw .NitePalette
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dw .DarknessPalette
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.MorningPalette:
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ld a, [wTimeOfDayPalset]
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and %00000011 ; 0
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ret
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.DayPalette:
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ld a, [wTimeOfDayPalset]
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and %00001100 ; 1
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srl a
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srl a
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ret
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.NitePalette:
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ld a, [wTimeOfDayPalset]
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and %00110000 ; 2
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swap a
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ret
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.DarknessPalette:
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ld a, [wTimeOfDayPalset]
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and %11000000 ; 3
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rlca
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rlca
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ret
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DmgToCgbTimePals:
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push hl
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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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pop de
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pop hl
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ret
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ConvertTimePalsIncHL:
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.loop
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call DmgToCgbTimePals
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inc hl
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inc hl
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inc hl
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ld c, 2
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call DelayFrames
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dec b
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jr nz, .loop
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ret
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ConvertTimePalsDecHL:
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.loop
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call DmgToCgbTimePals
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dec hl
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dec hl
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dec hl
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ld c, 2
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call DelayFrames
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dec b
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jr nz, .loop
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ret
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GetTimePalFade:
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; check cgb
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ld a, [hCGB]
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and a
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jr nz, .cgb
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; else: dmg
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; index
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ld a, [wTimeOfDayPal]
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and %11
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; get fade table
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push bc
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ld c, a
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ld b, $0
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ld hl, .dmgfades
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add hl, bc
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add hl, bc
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ld a, [hli]
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ld h, [hl]
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ld l, a
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pop bc
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; get place in fade table
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ld b, $0
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add hl, bc
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ret
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.cgb
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ld hl, .cgbfade
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ld b, $0
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add hl, bc
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ret
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.dmgfades
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dw .morn
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dw .day
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dw .nite
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dw .darkness
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.morn
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db %11111111, %11111111, %11111111
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db %11111110, %11111110, %11111110
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db %11111001, %11100100, %11100100
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db %11100100, %11010000, %11010000
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db %10010000, %10000000, %10000000
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db %01000000, %01000000, %01000000
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db %00000000, %00000000, %00000000
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.day
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db %11111111, %11111111, %11111111
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db %11111110, %11111110, %11111110
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db %11111001, %11100100, %11100100
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db %11100100, %11010000, %11010000
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db %10010000, %10000000, %10000000
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db %01000000, %01000000, %01000000
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db %00000000, %00000000, %00000000
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.nite
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db %11111111, %11111111, %11111111
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db %11111110, %11111110, %11111110
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db %11111001, %11100100, %11100100
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db %11101001, %11010000, %11010000
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db %10010000, %10000000, %10000000
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db %01000000, %01000000, %01000000
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db %00000000, %00000000, %00000000
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.darkness
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db %11111111, %11111111, %11111111
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db %11111110, %11111110, %11111111
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db %11111110, %11100100, %11111111
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db %11111101, %11010000, %11111111
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db %11111101, %10000000, %11111111
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db %00000000, %01000000, %00000000
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db %00000000, %00000000, %00000000
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.cgbfade
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db %11111111, %11111111, %11111111
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db %11111110, %11111110, %11111110
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db %11111001, %11111001, %11111001
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db %11100100, %11100100, %11100100
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db %10010000, %10010000, %10010000
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db %01000000, %01000000, %01000000
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db %00000000, %00000000, %00000000
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