Level selection menu: entry transition events (#12) (#35) [commit 4/4]

constants/cgb_pal_constants.asm

@@ -29,7 +29,7 @@
 	const CGB_PLAYER_OR_MON_FRONTPIC_PALS
 	const CGB_TRADE_TUBE
 	const CGB_TRAINER_OR_MON_FRONTPIC_PALS
-	const CGB_1D
+	const CGB_LEVEL_SELECTION_MENU_TOD_CHANGE
 DEF NUM_CGB_LAYOUTS EQU const_value
 
 DEF CGB_PARTY_MENU_HP_BARS EQU $fc

engine/gfx/cgb_layouts.asm

@@ -55,7 +55,7 @@ CGBLayoutJumptable:
 	dw _CGB_PlayerOrMonFrontpicPals
 	dw _CGB_TradeTube
 	dw _CGB_TrainerOrMonFrontpicPals
-	dw _CGB_Unused1D
+	dw _CGB_LevelSelectionMenuToDChange
 	assert_table_length NUM_CGB_LAYOUTS
 
 _CGB_BattleGrayscale:
@@ -585,7 +585,7 @@ _CGB_LevelSelectionMenu:
 	ld bc, 1 palettes
 	ld a, BANK(wOBPals1)
 	call FarCopyWRAM
-	; load daytime-based ToD symbol pals (pal1)
+; load daytime-based ToD symbol pals (pal1)
 	ld a, [wTimeOfDay]
 	maskbits NUM_DAYTIMES
 	ld bc, 1 palettes
@@ -624,6 +624,86 @@ _CGB_LevelSelectionMenu:
 	ldh [hCGBPalUpdate], a
 	ret
 
+_CGB_LevelSelectionMenuToDChange:
+; load daytime-based ToD symbol pals (pal1)
+	ld a, [wTimeOfDay]
+	maskbits NUM_DAYTIMES
+	ld bc, 1 palettes
+	ld hl, LevelSelectionMenuTimeOfDaySymbolsPals
+	call AddNTimes
+	ld de, wOBPals1 + 1 palettes
+	ld bc, 1 palettes
+	ld a, BANK(wOBPals1)
+	call FarCopyWRAM
+
+; load fading background pals
+	ld hl, .PalsOffsets
+	ld a, [wLevelSelectionMenuStartingToD]
+	maskbits NUM_DAYTIMES
+	ld d, a
+	ld a, [wLevelSelectionMenuToDFadeStep]
+	ld e, a
+.loop
+	ld a, [hli]
+	cp d
+	jr nz, .next1
+	inc a ; cp $ff
+	jr z, .done
+	ld a, [hli]
+	cp e
+	jr z, .match
+	jr .next2
+.next1
+	inc hl
+.next2
+	inc hl
+	jr .loop
+
+.match
+	ld e, [hl]
+	ld a, [wPlayerGender]
+	bit PLAYERGENDER_FEMALE_F, a
+	jr z, .male
+	ld hl, LevelSelectionMenuFemalePals
+	jr .got_pals
+.male
+	ld hl, LevelSelectionMenuMalePals
+.got_pals
+	ld a, e
+	ld bc, 6 palettes
+	call AddNTimes
+	ld de, wBGPals1
+	ld bc, 6 palettes
+	ld a, BANK(wBGPals1)
+	call FarCopyWRAM
+
+.done
+; apply and commit pals
+	call ApplyPals
+	ld a, TRUE
+	ldh [hCGBPalUpdate], a
+	ret
+
+.PalsOffsets:
+; wLevelSelectionMenuStartingToD, wLevelSelectionMenuToDFadeStep, offset from LevelSelectionMenu*Pals
+	db MORN_F, 0, 0
+	db DAY_F,  0, 1
+	db NITE_F, 0, 2
+	db EVE_F,  0, 3
+	db MORN_F, 1, 4
+	db MORN_F, 2, 5
+	db MORN_F, 3, 1
+	db DAY_F,  1, 6
+	db DAY_F,  2, 7
+	db DAY_F,  3, 3
+	db EVE_F,  1, 8
+	db EVE_F,  2, 9
+	db EVE_F,  3, 2
+	db NITE_F, 1, 10
+	db NITE_F, 2, 11
+	db NITE_F, 3, 0
+	db $ff
+
 _CGB_UnownPuzzle:
 	ld hl, FourPals_UnownPuzzle
 	call CopyFourPalettes

engine/menus/game_menu.asm

@@ -155,9 +155,8 @@ GameMenu_WorldMap:
 	cp CLEARED_LEVEL
 	jr nz, .save_and_return
 ; if CLEARED_LEVEL:
-; show post-level screen, clear level, unlock levels, advance ToD, request appropriate LSM events
+; show post-level screen, clear level, unlock levels, request appropriate LSM events
 	farcall ClearedLevelScreen
-	call AdvanceTimeOfDay
 	ld hl, wLevelSelectionMenuEntryEventQueue
 	set LSMEVENT_ANIMATE_TIME_OF_DAY, [hl]
 	ld a, [wLastUnlockedLevelsCount]

engine/menus/level_selection_menu.asm

@@ -118,6 +118,89 @@ LevelSelectionMenu::
 	call LevelSelectionMenu_DrawStageTrophies
 	call LevelSelectionMenu_RefreshTextboxAttrs
 
+	ld a, [wLevelSelectionMenuEntryEventQueue]
+	bit LSMEVENT_ANIMATE_TIME_OF_DAY, a
+	jp z, .main_loop
+
+	call LevelSelectionMenu_Delay10Frames
+
+	ld bc, SPRITEOAMSTRUCT_LENGTH
+	ld e, 3 * TILE_WIDTH
+.tod_symbol_upwards_loop
+	farcall PlaySpriteAnimationsAndDelayFrame
+	ld hl, wShadowOAM + $4 * SPRITEOAMSTRUCT_LENGTH + SPRITEOAMSTRUCT_YCOORD
+	dec [hl]
+	add hl, bc
+	dec [hl]
+	add hl, bc
+	dec [hl]
+	add hl, bc
+	dec [hl]
+	dec e
+	jr nz, .tod_symbol_upwards_loop
+
+	ld a, [wTimeOfDay]
+	ld [wLevelSelectionMenuStartingToD], a
+
+	cp NITE_F
+	ld e, -4
+	jr z, .change_tod_symbol
+	cp EVE_F
+	ld e, -2
+	jr z, .change_tod_symbol
+	cp DAY_F
+	ld e, 4
+	jr z, .change_tod_symbol
+	ld e, 2
+.change_tod_symbol
+	ld hl, wShadowOAM + $4 * SPRITEOAMSTRUCT_LENGTH + SPRITEOAMSTRUCT_TILE_ID
+	ld bc, SPRITEOAMSTRUCT_LENGTH
+	ld d, 2 * 2
+.change_tod_symbol_loop
+	ld a, [hl]
+	add e
+	ld [hl], a
+	add hl, bc
+	dec d
+	jr nz, .change_tod_symbol_loop
+
+	call AdvanceTimeOfDay
+
+	xor a
+	ld [wLevelSelectionMenuToDFadeStep], a
+	ld b, CGB_LEVEL_SELECTION_MENU_TOD_CHANGE
+	call GetCGBLayout
+	call LevelSelectionMenu_Delay4Frames
+	ld a, 1
+	ld [wLevelSelectionMenuToDFadeStep], a
+	ld b, CGB_LEVEL_SELECTION_MENU_TOD_CHANGE
+	call GetCGBLayout
+	call LevelSelectionMenu_Delay4Frames
+	ld a, 2
+	ld [wLevelSelectionMenuToDFadeStep], a
+	ld b, CGB_LEVEL_SELECTION_MENU_TOD_CHANGE
+	call GetCGBLayout
+	call LevelSelectionMenu_Delay4Frames
+	ld a, 3
+	ld [wLevelSelectionMenuToDFadeStep], a
+	ld b, CGB_LEVEL_SELECTION_MENU_TOD_CHANGE
+	call GetCGBLayout
+
+	ld bc, SPRITEOAMSTRUCT_LENGTH
+	ld e, 3 * TILE_WIDTH
+.tod_symbol_downwards_loop
+	farcall PlaySpriteAnimationsAndDelayFrame
+	ld hl, wShadowOAM + $4 * SPRITEOAMSTRUCT_LENGTH + SPRITEOAMSTRUCT_YCOORD
+	inc [hl]
+	add hl, bc
+	inc [hl]
+	add hl, bc
+	inc [hl]
+	add hl, bc
+	inc [hl]
+	dec e
+	jr nz, .tod_symbol_downwards_loop
+
 .main_loop
 	farcall PlaySpriteAnimations
 	call DelayFrame
@@ -1030,13 +1113,16 @@ LevelSelectionMenu_GetNewPage:
 	ld a, 1
 	ret
 
+LevelSelectionMenu_Delay4Frames:
+	ld a, 4
+	jr LevelSelectionMenu_Delay10Frames.loop
+
 LevelSelectionMenu_Delay10Frames:
 ; Delay 10 frames while playing sprite anims
 	ld a, 10
 .loop
 	push af
-	farcall PlaySpriteAnimations
+	farcall PlaySpriteAnimationsAndDelayFrame
-	call DelayFrame
 	pop af
 	dec a
 	jr nz, .loop

home/time.asm

@@ -35,7 +35,7 @@ AdvanceTimeOfDay::
 .set_days
 	ld [wCurDay], a
 
-	call ClearDailyTimers
+	farcall ClearDailyTimers
 
 	ret
 

macros/gfx.asm

@@ -41,14 +41,14 @@ MACRO rgbpals_fade_apply
 	DEF fade_from EQUS \1
 	DEF fade_to EQUS \2
 	assert {fade_from}_len == {fade_to}_len, "fade_from pals and fade_to pals must be same length"
-	for i, \3
+	for i, 0, \3
 		for j, 0, {fade_from}_len, 3
 			DEF rgbch_red = {j} + 0
 			DEF rgbch_green = {j} + 1
 			DEF rgbch_blue = {j} + 2
-			DEF palred_value = {fade_from}_{d:rgbch_red} + ({fade_to}_{d:rgbch_red} - {fade_from}_{d:rgbch_red}) * i / \3
+			DEF palred_value = {fade_from}_{d:rgbch_red} + ({fade_to}_{d:rgbch_red} - {fade_from}_{d:rgbch_red}) * (i + 1) / (\3 + 1)
-			DEF palgreen_value = {fade_from}_{d:rgbch_green} + ({fade_to}_{d:rgbch_green} - {fade_from}_{d:rgbch_green}) * i / \3
+			DEF palgreen_value = {fade_from}_{d:rgbch_green} + ({fade_to}_{d:rgbch_green} - {fade_from}_{d:rgbch_green}) * (i + 1) / (\3 + 1)
-			DEF palblue_value = {fade_from}_{d:rgbch_blue} + ({fade_to}_{d:rgbch_blue} - {fade_from}_{d:rgbch_blue}) * i / \3
+			DEF palblue_value = {fade_from}_{d:rgbch_blue} + ({fade_to}_{d:rgbch_blue} - {fade_from}_{d:rgbch_blue}) * (i + 1) / (\3 + 1)
 			dw palred (palred_value) + palgreen (palgreen_value) + palblue (palblue_value)
 		endr
 	endr

ram/wram.asm

@@ -947,6 +947,8 @@ ENDU
 
 wDefaultCGBLayout:: db
 
+UNION
+
 wPlayerHPPal:: db
 wEnemyHPPal:: db
 
@@ -955,6 +957,12 @@ wCurHPPal:: db
 
 wWhichPartyMonHPPal:: db
 
+NEXTU
+wLevelSelectionMenuStartingToD:: db
+wLevelSelectionMenuToDFadeStep:: db
+
+ENDU
+
 wAttrmap::
 ; 20x18 grid of bg tile attributes for 8x8 tiles
 ; read horizontally from the top row