ref: d9d688df4e4cdce07991856b13e9cf579de45bd4
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 dc 3,3,3,3, 3,3,3,3, 3,3,3,3 dc 3,3,3,2, 3,3,3,2, 3,3,3,2 dc 3,3,2,1, 3,2,1,0, 3,2,1,0 dc 3,2,1,0, 3,1,0,0, 3,1,0,0 dc 2,1,0,0, 2,0,0,0, 2,0,0,0 dc 1,0,0,0, 1,0,0,0, 1,0,0,0 dc 0,0,0,0, 0,0,0,0, 0,0,0,0 .day dc 3,3,3,3, 3,3,3,3, 3,3,3,3 dc 3,3,3,2, 3,3,3,2, 3,3,3,2 dc 3,3,2,1, 3,2,1,0, 3,2,1,0 dc 3,2,1,0, 3,1,0,0, 3,1,0,0 dc 2,1,0,0, 2,0,0,0, 2,0,0,0 dc 1,0,0,0, 1,0,0,0, 1,0,0,0 dc 0,0,0,0, 0,0,0,0, 0,0,0,0 .nite dc 3,3,3,3, 3,3,3,3, 3,3,3,3 dc 3,3,3,2, 3,3,3,2, 3,3,3,2 dc 3,3,2,1, 3,2,1,0, 3,2,1,0 dc 3,2,2,1, 3,1,0,0, 3,1,0,0 dc 2,1,0,0, 2,0,0,0, 2,0,0,0 dc 1,0,0,0, 1,0,0,0, 1,0,0,0 dc 0,0,0,0, 0,0,0,0, 0,0,0,0 .darkness dc 3,3,3,3, 3,3,3,3, 3,3,3,3 dc 3,3,3,2, 3,3,3,2, 3,3,3,3 dc 3,3,3,2, 3,2,1,0, 3,3,3,3 dc 3,3,3,1, 3,1,0,0, 3,3,3,3 dc 3,3,3,1, 2,0,0,0, 3,3,3,3 dc 0,0,0,0, 1,0,0,0, 0,0,0,0 dc 0,0,0,0, 0,0,0,0, 0,0,0,0 .cgbfade dc 3,3,3,3, 3,3,3,3, 3,3,3,3 dc 3,3,3,2, 3,3,3,2, 3,3,3,2 dc 3,3,2,1, 3,3,2,1, 3,3,2,1 dc 3,2,1,0, 3,2,1,0, 3,2,1,0 dc 2,1,0,0, 2,1,0,0, 2,1,0,0 dc 1,0,0,0, 1,0,0,0, 1,0,0,0 dc 0,0,0,0, 0,0,0,0, 0,0,0,0