pokecrystal-board/engine/board/spaces.asm

BoardSpaceScripts:: ; used only for BANK(BoardSpaceScripts)

BlueSpaceScript::
	scall ArriveToRegularSpaceScript
	iftrue .not_landed
	scall LandedInRegularSpaceScript_BeforeSpaceEffect
	givecoins CUR_LEVEL_COINS, BLUE_RED_SPACE_COINS
	playsound SFX_TRANSACTION
	special PrintGainCoins
	scall LandedInRegularSpaceScript_AfterSpaceEffect
.not_landed
	end

RedSpaceScript::
	scall ArriveToRegularSpaceScript
	iftrue .not_landed
	scall LandedInRegularSpaceScript_BeforeSpaceEffect
	takecoins CUR_LEVEL_COINS, BLUE_RED_SPACE_COINS
	playsound SFX_TRANSACTION
	special PrintLoseCoins
	scall LandedInRegularSpaceScript_AfterSpaceEffect
.not_landed
	end

GreenSpaceScript::
	scall ArriveToRegularSpaceScript
	iftrue .not_landed
	scall LandedInRegularSpaceScript_BeforeSpaceEffect
	scall LandedInRegularSpaceScript_AfterSpaceEffect
.not_landed
	end

ItemSpaceScript::
	scall ArriveToRegularSpaceScript
	iftrue .not_landed
	scall LandedInRegularSpaceScript_BeforeSpaceEffect
	opentext
	verbosegiveitem POTION
	closetext
	scall LandedInRegularSpaceScript_AfterSpaceEffect
.not_landed
	end

PokemonSpaceScript::
	scall ArriveToRegularSpaceScript
	iftrue .not_landed
	scall LandedInRegularSpaceScript_BeforeSpaceEffect
	wait 200
	loadpikachudata
	startbattle
	reloadmapafterbattle
	wait 100
	scall LandedInRegularSpaceScript_AfterSpaceEffect
.not_landed
	end

MinigameSpaceScript::
	scall ArriveToRegularSpaceScript
	iftrue .not_landed
	scall LandedInRegularSpaceScript_BeforeSpaceEffect
	wait 200
	scall LandedInRegularSpaceScript_AfterSpaceEffect
.not_landed
	end

EndSpaceScript::
; fading out will kick before reaching HandleMapBackground, so update sprites after any change
	scall ArriveToRegularSpaceScript
	scall LandedInRegularSpaceScript_BeforeSpaceEffect
	playmusic MUSIC_TRAINER_VICTORY
	wait 600
	callasm .FadeOutSlow ; 800 ms
	wait 400
	exitoverworld CLEARED_LEVEL
	endall

.FadeOutSlow:
; clear spaces left sprites
	ld hl, wDisplaySecondarySprites
	res SECONDARYSPRITES_SPACES_LEFT_F, [hl]
	call UpdateActiveSprites
; stop map anims
	xor a
	ld [hMapAnims], a
; fade out slow to white
	ld b, RGBFADE_TO_WHITE_8BGP_8OBP
	jp DoRGBFadeEffect

GreySpaceScript::
	scall ArriveToRegularSpaceScript
	iftrue .not_landed
	scall LandedInRegularSpaceScript_BeforeSpaceEffect
	scall LandedInRegularSpaceScript_AfterSpaceEffect
.not_landed
	end

ArriveToRegularSpaceScript:
	playsound SFX_PRESENT
	callasm .ArriveToRegularSpace
	end

.ArriveToRegularSpace:
; load new space
	ld a, [wCurSpaceNextSpace]
	ld [wCurSpace], a
	call LoadCurSpaceData
; decrease wSpacesLeft and copy to hScriptVar
	ld hl, wSpacesLeft
	dec [hl]
	ld a, [hl]
	ld [hScriptVar], a
; if landed, clear spaces left sprites
	and a
	jr nz, .not_landed
	ld hl, wDisplaySecondarySprites
	res SECONDARYSPRITES_SPACES_LEFT_F, [hl]
.not_landed
; update sprites
	jp UpdateActiveSprites

LandedInRegularSpaceScript_BeforeSpaceEffect:
	wait 300
	turnobject PLAYER, DOWN
	wait 100
	end

LandedInRegularSpaceScript_AfterSpaceEffect:
	callasm .LandedInRegularSpace
	end

.LandedInRegularSpace:
; disable the space effect (turn the space into a grey space)
	ld a, [wCurSpaceXCoord]
	add 4
	ld d, a
	ld a, [wCurSpaceYCoord]
	add 4
	ld e, a
	call GetBlockLocation
	ld a, [hl]
	and UNIQUE_SPACE_METATILES_MASK
	add FIRST_GREY_SPACE_METATILE
	ld [hl], a
; backup the disabled space to preserve it on map reload
	call BackupDisabledSpace
; trigger end of turn
	ld a, BOARDEVENT_END_TURN
	ldh [hCurBoardEvent], a
	ret

BranchSpaceScript::
	scall ArriveToBranchSpaceScript
BranchSpaceScript_PromptPlayer::
	callasm PromptPlayerToChooseBranchDirection
	iffalse .print_technique_required
	wait 200
	end

.print_technique_required
	opentext
	writetext .TechniqueRequiredText
	waitbutton
	closetext
	sjump BranchSpaceScript_PromptPlayer

.TechniqueRequiredText:
	text "A new TECHNIQUE is"
	line "required!"
	done

ArriveToBranchSpaceScript:
	playsound SFX_TWINKLE
	wait 400
	callasm .ArriveToBranchSpace
	end

.ArriveToBranchSpace:
; load new space
	ld a, [wCurSpaceNextSpace]
	ld [wCurSpace], a
; unlike in other cases, wCurSpaceNextSpace will not yet
; contain the next space after calling LoadCurSpaceData.
; it will be defined after the player has chosen which direction to take.
	call LoadCurSpaceData
; load the space's branch data
	call LoadTempSpaceBranchData
	call .DisableDirectionsRequiringLockedTechniques
; draw arrows for valid directions
	farcall LoadBranchSpaceGFX
	ld hl, wDisplaySecondarySprites
	set SECONDARYSPRITES_BRANCH_SPACE_F, [hl]
; update sprites
	jp UpdateActiveSprites

.DisableDirectionsRequiringLockedTechniques:
; set to BRANCH_DIRECTION_UNAVAILABLE each next space byte of the branch struct
; that has an unavailable direction due to required techniques not yet unlocked.
for curdir, 0, NUM_DIRECTIONS
	ld e, (NUM_TECHNIQUES + 7) / 8
	ld hl, wTempSpaceBranchStruct + NUM_DIRECTIONS + curdir * (NUM_TECHNIQUES + 7) / 8
	ld bc, wUnlockedTechniques
.loop\@
	ld a, [bc]
	and [hl]
	cp [hl]
	jr nz, .unavailable_next\@
	dec e
	jr z, .available_next\@
	inc bc
	inc hl
	jr .loop\@
.unavailable_next\@
	ld a, BRANCH_DIRECTION_UNAVAILABLE
	ld [wTempSpaceBranchStruct + curdir], a
.available_next\@
endr
	ret

PromptPlayerToChooseBranchDirection:
; sample a dpad press or SELECT button
	ld hl, wTempSpaceBranchStruct
	call GetJoypad
	ldh a, [hJoyPressed]
	and D_PAD | SELECT
	jr z, PromptPlayerToChooseBranchDirection

	cp SELECT ; check if SELECT pressed along with no dpad key
	jr nz, .not_select
	jp .EnterViewMapMode

.not_select
; determine the status (ok/invalid/unavailable) of the chosen direction
	bit D_RIGHT_F, a
	jr z, .not_right
	ld a, [hl]
	inc a ; cp BRANCH_DIRECTION_INVALID
	jr z, PromptPlayerToChooseBranchDirection
	inc a ; cp BRANCH_DIRECTION_UNAVAILABLE
	jr z, .technique_required
	jr .direction_chosen
.not_right

	inc hl
	bit D_LEFT_F, a
	jr z, .not_left
	ld a, [hl]
	inc a ; cp BRANCH_DIRECTION_INVALID
	jr z, PromptPlayerToChooseBranchDirection
	inc a ; cp BRANCH_DIRECTION_UNAVAILABLE
	jr z, .technique_required
	jr .direction_chosen
.not_left

	inc hl
	bit D_UP_F, a
	jr z, .not_up
	ld a, [hl]
	inc a ; cp BRANCH_DIRECTION_INVALID
	jr z, PromptPlayerToChooseBranchDirection
	inc a ; cp BRANCH_DIRECTION_UNAVAILABLE
	jr z, .technique_required
	jr .direction_chosen
.not_up

	inc hl
	ld a, [hl]
	inc a ; cp BRANCH_DIRECTION_INVALID
	jr z, PromptPlayerToChooseBranchDirection
	inc a ; cp BRANCH_DIRECTION_UNAVAILABLE
	jr z, .technique_required
	; fallthrough

.direction_chosen
; save the next space of the chosen direction to wCurSpaceNextSpace
	ld a, [hl]
	ld [wCurSpaceNextSpace], a
	ld hl, wDisplaySecondarySprites
	res SECONDARYSPRITES_BRANCH_SPACE_F, [hl]
	ld a, TRUE
	ldh [hScriptVar], a
	jp PlayClickSFX

.technique_required
	xor a ; FALSE
	ldh [hScriptVar], a
	jp PlayClickSFX

.EnterViewMapMode:
	call BackupMapObjectsOnEnterViewMapMode
	ld a, BOARDEVENT_VIEW_MAP_MODE
	ldh [hCurBoardEvent], a
	ld a, 100
	ld [wViewMapModeRange], a
	ld a, [wMapGroup]
	ld [wBeforeViewMapMapGroup], a
	ld a, [wMapNumber]
	ld [wBeforeViewMapMapNumber], a
	ld a, [wXCoord]
	ld [wBeforeViewMapXCoord], a
	ld a, [wYCoord]
	ld [wBeforeViewMapYCoord], a
	ld a, [wPlayerDirection]
	ld [wBeforeViewMapDirection], a
	xor a
	ld [wViewMapModeDisplacementY], a
	ld [wViewMapModeDisplacementX], a
	call DisableOverworldHUD
	ld hl, wPlayerFlags
	set INVISIBLE_F, [hl]
	ld hl, wDisplaySecondarySprites
	res SECONDARYSPRITES_SPACES_LEFT_F, [hl]
	res SECONDARYSPRITES_BRANCH_SPACE_F, [hl]
	farcall MockPlayerObject
	call UpdateSprites
	farcall LoadViewMapModeGFX
	ld hl, wDisplaySecondarySprites
	set SECONDARYSPRITES_VIEW_MAP_MODE_F, [hl]
	ld a, TRUE
	ldh [hScriptVar], a
	jp PlayClickSFX

UnionSpaceScript::
	callasm .ArriveToUnionSpace
	end

.ArriveToUnionSpace:
; these are just transition spaces, so simply load the next space
	ld a, [wCurSpaceNextSpace]
	ld [wCurSpace], a
	call LoadCurSpaceData
	ret

PrintGainCoins:
	ld a, PAL_OW_MISC_BOARD_COINS | 0
	ld [wCurOverworldMiscPal], a
	ld hl, wStringBuffer1
	ld a, "<COIN>"
	ld [hli], a
	ld a, "<PLUS>"
	ld [hli], a
	jr PrintGainOrLoseCoins

PrintLoseCoins:
	ld a, PAL_OW_MISC_BOARD_COINS | 1
	ld [wCurOverworldMiscPal], a
	ld hl, wStringBuffer1
	ld a, "<COIN>"
	ld [hli], a
	ld a, "<MINUS>"
	ld [hli], a
	; fallthrough

PrintGainOrLoseCoins:
	push hl
	farcall LoadOverworldMiscObjPal_ToObPals2
	ld a, TRUE
	ldh [hCGBPalUpdate], a
	pop hl
 ; fill string space with "@" to ensure that it is terminated with at least one "@"
	push hl
	ld a, "@"
	ld c, MAX_DELTA_COINS_DIGITS + 1
.loop
	ld [hli], a
	dec c
	jr nz, .loop
	pop hl
; copy coins amount string to wStringBuffer1 + $2
	ld de, hCoinsTemp
	lb bc, 3 | 1 << 6, MAX_DELTA_COINS_DIGITS ; 3 bytes, left aligned, no leading zeros, 5 digits
	call PrintNum
	ld hl, wDisplaySecondarySprites
	set SECONDARYSPRITES_GAIN_OR_LOSE_COINS_F, [hl]
; refresh overworld HUD, and show coins string 750 ms
	call UpdateActiveSprites
	call RefreshOverworldHUD
	ld c, 45 ; 750 ms
	call DelayFrames
	ld hl, wDisplaySecondarySprites
	res SECONDARYSPRITES_GAIN_OR_LOSE_COINS_F, [hl]
	ret

INCLUDE "engine/board/disabled_spaces.asm"