Level selection menu: entry transition events (#12) (#35) [commit 1]

constants/landmark_constants.asm

@@ -27,6 +27,12 @@ DEF LSMTEXTBOX_LEVEL_NUMBERS_FIRST_TILE EQU $31 ; and $41
 	const LSMTEXTBOX_STAGE_3_INDICATOR_TILE ; $3d (and $4d)
 	const LSMTEXTBOX_STAGE_4_INDICATOR_TILE ; $3e (and $4e)
 
+; events when entering Level Selection menu (wLevelSelectionMenuEntryEventQueue)
+	const_def
+	const LSMEVENT_SHOW_UNLOCKED_LEVELS ; 0
+	const LSMEVENT_ANIMATE_TIME_OF_DAY  ; 1
+DEF NUM_LSM_EVENTS EQU const_value
+
 ; used in CaughtData (legacy)
 	const_def $7f, -1
 	const LANDMARK_EVENT             ; $7f

data/levels/level_selection_menu.asm

@@ -131,3 +131,4 @@ if DEF(_DEBUG)
 	db DEBUGLEVEL_5 ; LANDMARK_DEBUGLEVEL_5
 endc
 	assert_table_length NUM_LANDMARKS
+	db $ff

docs/develop/index.md

@@ -100,6 +100,7 @@
   - **wCurLevel**: initialized in LevelSelectionMenu (where it is also used), and stays static during the level.
   - **wDefaultLevelSelectionMenuLandmark**: used to know in which landmark to place the player when entering level selection menu.
   - **wCurOverworldMiscPal**
+  - **wLevelSelectionMenuEntryEventQueue**: which events have to be triggered the next time the player enters the level selection menu.
 
 - These addresses share memory region with string buffers from *wStringBuffer3* onwards. They are placed in memory in the following order.
   - **wTempSpaceStruct**: Temporary scope. Same structure as *wCurSpaceStruct*
@@ -119,6 +120,8 @@
   - **wDisabledSpacesBackups**: preserved on save to **sDisabledSpacesBackups**.
   - **wMapObjectsBackups**: preserved on save to **sMapObjectsBackups**.
 
+- **wLevelSelectionMenu\*** addresses, union under the *"Miscellaneous WRAM 1"* section. Temporary scope during level selection menu, except for *wLevelSelectionMenuEntryEventQueue*.
+
 - Other WRAM 0 addresses (not preserved on save):
   - **wText2bpp**
   - **wWhichHUD**

engine/menus/cleared_level_screen.asm

@@ -35,9 +35,7 @@ ClearedLevelScreen:
 	ld [wNumTempUnlockedLevels], a
 	ld a, $ff
 	ld [wTempUnlockedLevels], a
-	call UnlockLevels
-	ld c, 30
-	jp DelayFrames
+	jp UnlockLevels
 
 .LevelCleared1Text:
 	text "  L E V E L"

engine/menus/game_menu.asm

@@ -93,6 +93,22 @@ GameMenuJoypadLoop:
 	ret
 
 GameMenu_WorldMap:
+; the following 500ms fading delay applies:
+; - from post-level screen to level selection menu
+; - from overworld to level selection menu
+; - from selecting "WORLD MAP" in game menu to level selection menu (save outside ow)
+; - from selecting "WORLD MAP" in game menu to overworld (save in ow)
+	ld a, 8
+	ld [wMusicFade], a
+	ld a, LOW(MUSIC_NONE)
+	ld [wMusicFadeID], a
+	ld a, HIGH(MUSIC_NONE)
+	ld [wMusicFadeID + 1], a
+	call ClearBGPalettes
+	call ClearTilemap
+	ld c, 30 - 8
+	call DelayFrames
+
 	ld a, [wSaveFileInOverworld]
 	and a
 	jr z, .not_in_overworld
@@ -102,6 +118,11 @@ GameMenu_WorldMap:
 
 .not_in_overworld
 	farcall LevelSelectionMenu
+; dequeue all level selection menu events (which triggered during call above if set).
+; game is not saved until player enters a level, so if game is turned off in the middle of
+; an event or in the menu, the player will be able to replay the events when they come back.
+	ld a, 0
+	ld [wLevelSelectionMenuEntryEventQueue], a
 	ret nc ; if pressed B, go back to Game Menu
 
 	farcall ClearSpriteAnims
@@ -111,16 +132,6 @@ GameMenu_WorldMap:
 
 .SpawnToMap:
 	ldh [hMapEntryMethod], a
-	ld a, $8
-	ld [wMusicFade], a
-	ld a, LOW(MUSIC_NONE)
-	ld [wMusicFadeID], a
-	ld a, HIGH(MUSIC_NONE)
-	ld [wMusicFadeID + 1], a
-	call ClearBGPalettes
-	call ClearTilemap
-	ld c, 20
-	call DelayFrames
 	farcall JumpRoamMons
 	xor a
 	ld [wDontPlayMapMusicOnReload], a ; play map music
@@ -137,11 +148,17 @@ GameMenu_WorldMap:
 	ld a, [wExitOverworldReason]
 	cp CLEARED_LEVEL
 	jr nz, .save_and_return
-	call AdvanceTimeOfDay
 	farcall ClearedLevelScreen
+	call AdvanceTimeOfDay
+	ld hl, wLevelSelectionMenuEntryEventQueue
+	set LSMEVENT_ANIMATE_TIME_OF_DAY, [hl]
+	ld a, [wNumTempUnlockedLevels]
+	and a
+	jr z, .save_and_return
+	set LSMEVENT_SHOW_UNLOCKED_LEVELS, [hl]
 .save_and_return
 	farcall AutoSaveGameOutsideOverworld
-	ret
+	jp GameMenu_WorldMap
 
 GameMenu_Shop:
 	ret

engine/menus/level_selection_menu.asm

@@ -2,6 +2,8 @@ LevelSelectionMenu::
 	xor a
 	ldh [hInMenu], a
 	ldh [hMapAnims], a
+	ldh [hSCY], a
+	ldh [hSCX], a
 	ld a, 1 << 2 ; do not clear wShadowOAM during DoNextFrameForAllSprites
 	ld [wVramState], a
 
@@ -17,6 +19,59 @@ LevelSelectionMenu::
 	ld a, LCDC_DEFAULT
 	ldh [rLCDC], a
 
+	ld a, [wLevelSelectionMenuEntryEventQueue]
+	bit LSMEVENT_SHOW_UNLOCKED_LEVELS, a
+	jr z, .load_default_landmark
+
+	ld hl, wTempUnlockedLevels
+.show_unlocked_levels_loop
+	ld a, [hli]
+	cp $ff
+	jr z, .load_default_landmark
+
+	push hl
+; perform level-to-landmark lookup of wTempUnlockedLevels[i] in $ff-terminated LandmarkToLevelTable.
+; stop at the first match and load it to wLevelSelectionMenuCurrentLandmark.
+	ld hl, LandmarkToLevelTable
+	ld c, 0
+.level_to_landmark_loop
+	ld b, [hl]
+	inc b
+	jr z, .invalid_level ; if reached $ff byte of LandmarkToLevelTable
+	cp [hl]
+	jr z, .match
+	inc hl
+	inc c
+	jr .level_to_landmark_loop
+.match
+	ld a, c
+	ld [wLevelSelectionMenuCurrentLandmark], a
+	call LevelSelectionMenu_GetLandmarkPage
+	ld [wLevelSelectionMenuCurrentPage], a
+
+	call LevelSelectionMenu_DrawTilemapAndAttrmap
+	call LevelSelectionMenu_DrawTimeOfDaySymbol
+	ld b, CGB_LEVEL_SELECTION_MENU
+	call GetCGBLayout ; apply and commit pals
+	call SetPalettes
+	ld c, 20         ;
+	call DelayFrames ; page shown --> page and textbox shown
+
+	call LevelSelectionMenu_PrintLevelAndLandmarkNameAndStageIndicators
+	call LevelSelectionMenu_DrawStageTrophies
+	call LevelSelectionMenu_RefreshTextboxAttrs
+
+	ld c, 60
+	call DelayFrames
+	ld b, RGBFADE_TO_BLACK_6BGP_1OBP2
+	call DoRGBFadeEffect
+	ld c, 30         ;
+	call DelayFrames ; black screen --> next landmark shown
+.invalid_level
+	pop hl
+	jr .show_unlocked_levels_loop
+
+.load_default_landmark
 	ld a, [wDefaultLevelSelectionMenuLandmark]
 	ld [wLevelSelectionMenuCurrentLandmark], a
 	call LevelSelectionMenu_GetLandmarkPage
@@ -24,11 +79,7 @@ LevelSelectionMenu::
 	ld a, TRUE
 	ld [wLevelSelectionMenuStandingStill], a
 
-	call LevelSelectionMenu_InitTilemap
-	call LevelSelectionMenu_InitAttrmap
-	call WaitBGMap2
-	xor a
-	ldh [hBGMapMode], a
+	call LevelSelectionMenu_DrawTilemapAndAttrmap
 	call LevelSelectionMenu_DrawTimeOfDaySymbol
 	ld b, CGB_LEVEL_SELECTION_MENU
 	call GetCGBLayout ; apply and commit pals
@@ -38,7 +89,6 @@ LevelSelectionMenu::
 	call PlayMusic
 	call DelayFrame ; wait for pal update
 
-	ld a, [wLevelSelectionMenuCurrentLandmark]
 	call LevelSelectionMenu_InitPlayerSprite
 	call LevelSelectionMenu_InitLandmark
 	call LevelSelectionMenu_PrintLevelAndLandmarkNameAndStageIndicators
@@ -136,6 +186,7 @@ LevelSelectionMenu::
 	call PlaySFX
 	call LevelSelectionMenu_Delay10Frames
 	call .EnterLevelFadeOut
+	call WaitSFX
 	scf
 	ret
 
@@ -231,10 +282,17 @@ LevelSelectionMenu_InitAttrmap:
 	jr nz, .loop
 	ret
 
+LevelSelectionMenu_DrawTilemapAndAttrmap:
+	call LevelSelectionMenu_InitTilemap
+	call LevelSelectionMenu_InitAttrmap
+	call WaitBGMap2
+	xor a
+	ldh [hBGMapMode], a
+	ret
+
 LevelSelectionMenu_InitPlayerSprite:
 ; initialize the anim struct of the player's sprite.
 ; because ClearSpriteAnims was called before, it's always loaded to wSpriteAnim1
-	push af
 	depixel 0, 0
 ; all the SPRITE_ANIM_* related to the level selection menu are sorted by direction, then by gender
 	ld b, SPRITE_ANIM_OBJ_LEVEL_SELECTION_MENU_MALE_WALK_DOWN
@@ -244,7 +302,7 @@ LevelSelectionMenu_InitPlayerSprite:
 	ld hl, SPRITEANIMSTRUCT_TILE_ID
 	add hl, bc
 	ld [hl], $00
-	pop af
+	ld a, [wLevelSelectionMenuCurrentLandmark]
 	ld e, a
 	call LevelSelectionMenu_GetLandmarkCoords
 ; wSpriteAnim1*Coord contain the coord of the bottom right object of the player sprite
@@ -747,11 +805,7 @@ ENDM
 ; set new page and redraw screen
 	call LevelSelectionMenu_GetNewPage
 	ld [wLevelSelectionMenuCurrentPage], a
-	call LevelSelectionMenu_InitTilemap
-	call LevelSelectionMenu_InitAttrmap
-	call WaitBGMap2
-	xor a
-	ldh [hBGMapMode], a
+	call LevelSelectionMenu_DrawTilemapAndAttrmap
 	call .PageChangeFadeIn
 ; adjust steps left for the "duplicate" movement of the player leaving and entering a page
 	ld hl, wLevelSelectionMenuMovementStepsLeft

home/time.asm

@@ -40,4 +40,4 @@ AdvanceTimeOfDay::
 	ret
 
 .TimeOfDayOrder:
-	db MORN_F, DAY_F, NITE_F, EVE_F, MORN_F
+	db MORN_F, DAY_F, EVE_F, NITE_F, MORN_F

macros/gfx.asm

@@ -55,14 +55,6 @@ MACRO rgbpals_fade_apply
 	PURGE fade_from, fade_to, rgbch_red, rgbch_green, rgbch_blue, palred_value, palgreen_value, palblue_value
 ENDM
 
-/* MACRO rgbpals_fade_end
-	rept _NARG
-		for i,
-		endr
-		shift
-	endr
-ENDM */
-
 DEF palettes EQUS "* PALETTE_SIZE"
 DEF palette  EQUS "+ PALETTE_SIZE *"
 DEF color    EQUS "+ PAL_COLOR_SIZE *"

ram/wram.asm

@@ -2546,6 +2546,7 @@ wKurtApricornQuantity:: db
 wCurLevel:: db
 wDefaultLevelSelectionMenuLandmark:: db
 wCurOverworldMiscPal:: db
+wLevelSelectionMenuEntryEventQueue:: flag_array NUM_LSM_EVENTS
 
 wPlayerDataEnd::