ref: ae022e1420ee16032cb7afb1a365bc32fc2a2c9b
dir: /engine/tilesets/timeofday_pals.asm/
DummyPredef35: DummyPredef36: ret UpdateTimeOfDayPal:: call UpdateTime ld a, [wTimeOfDay] ld [wCurTimeOfDay], a call GetTimePalette ld [wTimeOfDayPal], a ret _TimeOfDayPals:: ; return carry if pals are changed ; forced pals? ld hl, wTimeOfDayPalFlags bit 7, [hl] jr nz, .dontchange ; do we need to bother updating? ld a, [wTimeOfDay] ld hl, wCurTimeOfDay cp [hl] jr z, .dontchange ; if so, the time of day has changed ld a, [wTimeOfDay] ld [wCurTimeOfDay], a ; get palette id call GetTimePalette ; same palette as before? ld hl, wTimeOfDayPal cp [hl] jr z, .dontchange ; update palette id ld [wTimeOfDayPal], a ; save bg palette 7 ld hl, wBGPals1 palette PAL_BG_TEXT ; save wram bank ldh a, [rSVBK] ld b, a ld a, BANK(wBGPals1) ldh [rSVBK], a ; push palette ld c, NUM_PAL_COLORS .push ld d, [hl] inc hl ld e, [hl] inc hl push de dec c jr nz, .push ; restore wram bank ld a, b ldh [rSVBK], a ; update sgb pals ld b, SCGB_MAPPALS call GetSGBLayout ; restore bg palette 7 ld hl, wOBPals1 - 1 ; last byte in wBGPals1 ; save wram bank ldh a, [rSVBK] ld d, a ld a, BANK(wOBPals1) ldh [rSVBK], a ; pop palette ld e, NUM_PAL_COLORS .pop pop bc ld [hl], c dec hl ld [hl], b dec hl dec e jr nz, .pop ; restore wram bank ld a, d ldh [rSVBK], a ; update palettes call _UpdateTimePals call DelayFrame ; successful change scf ret .dontchange ; no change occurred and a ret _UpdateTimePals:: ld c, $9 ; normal call GetTimePalFade call DmgToCgbTimePals ret FadeInPalettes:: ld c, $12 call GetTimePalFade ld b, $4 call ConvertTimePalsDecHL ret FadeOutPalettes:: call FillWhiteBGColor ld c, $9 call GetTimePalFade ld b, $4 call ConvertTimePalsIncHL ret BattleTowerFade: call FillWhiteBGColor ld c, $9 call GetTimePalFade ld b, $4 .asm_8c09c call DmgToCgbTimePals inc hl inc hl inc hl ld c, $7 call DelayFrames dec b jr nz, .asm_8c09c ret FadeInQuickly: ld c, $0 call GetTimePalFade ld b, $4 call ConvertTimePalsIncHL ret FadeBlackQuickly: ld c, $9 call GetTimePalFade ld b, $4 call ConvertTimePalsDecHL ret FillWhiteBGColor: ldh a, [rSVBK] push af ld a, BANK(wBGPals1) ldh [rSVBK], a ld hl, wBGPals1 ld a, [hli] ld e, a ld a, [hli] ld d, a ld hl, wBGPals1 + 1 palettes ld c, 6 .loop ld a, e ld [hli], a ld a, d ld [hli], a rept 6 inc hl endr dec c jr nz, .loop pop af ldh [rSVBK], a ret ReplaceTimeOfDayPals: ld hl, .BrightnessLevels ld a, [wMapTimeOfDay] cp $4 ; Dark cave, needs Flash jr z, .DarkCave and $7 add l ld l, a ld a, $0 adc h ld h, a ld a, [hl] ld [wTimeOfDayPalset], a ret .DarkCave: ld a, [wStatusFlags] bit STATUSFLAGS_FLASH_F, a jr nz, .UsedFlash ld a, %11111111 ; 3, 3, 3, 3 ld [wTimeOfDayPalset], a ret .UsedFlash: ld a, %10101010 ; 2, 2, 2, 2 ld [wTimeOfDayPalset], a ret .BrightnessLevels: dc 3, 2, 1, 0 dc 1, 1, 1, 1 dc 2, 2, 2, 2 dc 0, 0, 0, 0 dc 3, 3, 3, 3 dc 3, 2, 1, 0 dc 3, 2, 1, 0 dc 3, 2, 1, 0 GetTimePalette: ld a, [wTimeOfDay] ld e, a ld d, 0 ld hl, .TimePalettes add hl, de add hl, de ld a, [hli] ld h, [hl] ld l, a jp hl .TimePalettes: dw .MorningPalette dw .DayPalette dw .NitePalette dw .DarknessPalette .MorningPalette: ld a, [wTimeOfDayPalset] and %00000011 ; 0 ret .DayPalette: ld a, [wTimeOfDayPalset] and %00001100 ; 1 srl a srl a ret .NitePalette: ld a, [wTimeOfDayPalset] and %00110000 ; 2 swap a ret .DarknessPalette: ld a, [wTimeOfDayPalset] and %11000000 ; 3 rlca rlca ret DmgToCgbTimePals: push hl push de ld a, [hli] call DmgToCgbBGPals ld a, [hli] ld e, a ld a, [hli] ld d, a call DmgToCgbObjPals pop de pop hl ret ConvertTimePalsIncHL: .loop call DmgToCgbTimePals inc hl inc hl inc hl ld c, 2 call DelayFrames dec b jr nz, .loop ret ConvertTimePalsDecHL: .loop call DmgToCgbTimePals dec hl dec hl dec hl ld c, 2 call DelayFrames dec b jr nz, .loop ret GetTimePalFade: ; check cgb ldh a, [hCGB] and a jr nz, .cgb ; else: dmg ; index ld a, [wTimeOfDayPal] and %11 ; get fade table push bc ld c, a ld b, $0 ld hl, .dmgfades add hl, bc add hl, bc ld a, [hli] ld h, [hl] ld l, a pop bc ; get place in fade table ld b, $0 add hl, bc ret .cgb ld hl, .cgbfade ld b, $0 add hl, bc ret .dmgfades dw .morn dw .day dw .nite dw .darkness .morn db %11111111, %11111111, %11111111 db %11111110, %11111110, %11111110 db %11111001, %11100100, %11100100 db %11100100, %11010000, %11010000 db %10010000, %10000000, %10000000 db %01000000, %01000000, %01000000 db %00000000, %00000000, %00000000 .day db %11111111, %11111111, %11111111 db %11111110, %11111110, %11111110 db %11111001, %11100100, %11100100 db %11100100, %11010000, %11010000 db %10010000, %10000000, %10000000 db %01000000, %01000000, %01000000 db %00000000, %00000000, %00000000 .nite db %11111111, %11111111, %11111111 db %11111110, %11111110, %11111110 db %11111001, %11100100, %11100100 db %11101001, %11010000, %11010000 db %10010000, %10000000, %10000000 db %01000000, %01000000, %01000000 db %00000000, %00000000, %00000000 .darkness db %11111111, %11111111, %11111111 db %11111110, %11111110, %11111111 db %11111110, %11100100, %11111111 db %11111101, %11010000, %11111111 db %11111101, %10000000, %11111111 db %00000000, %01000000, %00000000 db %00000000, %00000000, %00000000 .cgbfade db %11111111, %11111111, %11111111 db %11111110, %11111110, %11111110 db %11111001, %11111001, %11111001 db %11100100, %11100100, %11100100 db %10010000, %10010000, %10010000 db %01000000, %01000000, %01000000 db %00000000, %00000000, %00000000