1 files changed, 475 insertions, 0 deletions
diff --git a/de/engine/hidden_object_functions17.asm b/de/engine/hidden_object_functions17.asm
new file mode 100755
index 00000000..bc490e3c
--- /dev/null
+++ b/de/engine/hidden_object_functions17.asm
@@ -0,0 +1,475 @@
+PrintRedSNESText:
+	call EnableAutoTextBoxDrawing
+	tx_pre_jump RedBedroomSNESText
+
+RedBedroomSNESText:
+	TX_FAR _RedBedroomSNESText
+	db "@"
+
+OpenRedsPC:
+	call EnableAutoTextBoxDrawing
+	tx_pre_jump RedBedroomPCText
+
+RedBedroomPCText:
+	TX_PLAYERS_PC
+
+Route15GateLeftBinoculars:
+	ld a, [wSpriteStateData1 + 9]
+	cp SPRITE_FACING_UP
+	ret nz
+	call EnableAutoTextBoxDrawing
+	tx_pre Route15UpstairsBinocularsText
+	ld a, ARTICUNO
+	ld [wcf91], a
+	call PlayCry
+	jp DisplayMonFrontSpriteInBox
+
+Route15UpstairsBinocularsText:
+	TX_FAR _Route15UpstairsBinocularsText
+	db "@"
+
+AerodactylFossil:
+	ld a, FOSSIL_AERODACTYL
+	ld [wcf91], a
+	call DisplayMonFrontSpriteInBox
+	call EnableAutoTextBoxDrawing
+	tx_pre AerodactylFossilText
+	ret
+
+AerodactylFossilText:
+	TX_FAR _AerodactylFossilText
+	db "@"
+
+KabutopsFossil:
+	ld a, FOSSIL_KABUTOPS
+	ld [wcf91], a
+	call DisplayMonFrontSpriteInBox
+	call EnableAutoTextBoxDrawing
+	tx_pre KabutopsFossilText
+	ret
+
+KabutopsFossilText:
+	TX_FAR _KabutopsFossilText
+	db "@"
+
+DisplayMonFrontSpriteInBox:
+; Displays a pokemon's front sprite in a pop-up window.
+; [wcf91] = pokemon internal id number
+	ld a, 1
+	ld [H_AUTOBGTRANSFERENABLED], a
+	call Delay3
+	xor a
+	ld [hWY], a
+	call SaveScreenTilesToBuffer1
+	ld a, MON_SPRITE_POPUP
+	ld [wTextBoxID], a
+	call DisplayTextBoxID
+	call UpdateSprites
+	ld a, [wcf91]
+	ld [wd0b5], a
+	call GetMonHeader
+	ld de, vChars1 + $310
+	call LoadMonFrontSprite
+	ld a, $80
+	ld [hStartTileID], a
+	coord hl, 10, 11
+	predef AnimateSendingOutMon
+	call WaitForTextScrollButtonPress
+	call LoadScreenTilesFromBuffer1
+	call Delay3
+	ld a, $90
+	ld [hWY], a
+	ret
+
+PrintBlackboardLinkCableText:
+	call EnableAutoTextBoxDrawing
+	ld a, $1
+	ld [wDoNotWaitForButtonPressAfterDisplayingText], a
+	ld a, [wHiddenObjectFunctionArgument]
+	call PrintPredefTextID
+	ret
+
+LinkCableHelp:
+	TX_ASM
+	call SaveScreenTilesToBuffer1
+	ld hl, LinkCableHelpText1
+	call PrintText
+	xor a
+	ld [wMenuItemOffset], a ; not used
+	ld [wCurrentMenuItem], a
+	ld [wLastMenuItem], a
+	ld a, A_BUTTON | B_BUTTON
+	ld [wMenuWatchedKeys], a
+	ld a, 3
+	ld [wMaxMenuItem], a
+	ld a, 2
+	ld [wTopMenuItemY], a
+	ld a, 1
+	ld [wTopMenuItemX], a
+.linkHelpLoop
+	ld hl, wd730
+	set 6, [hl]
+	coord hl, 0, 0
+	ld b, 8
+	ld c, 14
+	call TextBoxBorder
+	coord hl, 2, 2
+	ld de, HowToLinkText
+	call PlaceString
+	ld hl, LinkCableHelpText2
+	call PrintText
+	call HandleMenuInput
+	bit 1, a ; pressed b
+	jr nz, .exit
+	ld a, [wCurrentMenuItem]
+	cp 3 ; pressed a on "STOP READING"
+	jr z, .exit
+	ld hl, wd730
+	res 6, [hl]
+	ld hl, LinkCableInfoTexts
+	add a
+	ld d, 0
+	ld e, a
+	add hl, de
+	ld a, [hli]
+	ld h, [hl]
+	ld l, a
+	call PrintText
+	jp .linkHelpLoop
+.exit
+	ld hl, wd730
+	res 6, [hl]
+	call LoadScreenTilesFromBuffer1
+	jp TextScriptEnd
+
+LinkCableHelpText1:
+	TX_FAR _LinkCableHelpText1
+	db "@"
+
+LinkCableHelpText2:
+	TX_FAR _LinkCableHelpText2
+	db "@"
+
+HowToLinkText:
+	db   "LINK-INFO"
+	next "KOLOSSEUM"
+	next "HANDELSCENTER"
+	next "VERLASSEN@"
+
+LinkCableInfoTexts:
+	dw LinkCableInfoText1
+	dw LinkCableInfoText2
+	dw LinkCableInfoText3
+
+LinkCableInfoText1:
+	TX_FAR _LinkCableInfoText1
+	db "@"
+
+LinkCableInfoText2:
+	TX_FAR _LinkCableInfoText2
+	db "@"
+
+LinkCableInfoText3:
+	TX_FAR _LinkCableInfoText3
+	db "@"
+
+ViridianSchoolBlackboard:
+	TX_ASM
+	call SaveScreenTilesToBuffer1
+	ld hl, ViridianSchoolBlackboardText1
+	call PrintText
+	xor a
+	ld [wMenuItemOffset], a
+	ld [wCurrentMenuItem], a
+	ld [wLastMenuItem], a
+	ld a, D_LEFT | D_RIGHT | A_BUTTON | B_BUTTON
+	ld [wMenuWatchedKeys], a
+	ld a, 2
+	ld [wMaxMenuItem], a
+	ld a, 2
+	ld [wTopMenuItemY], a
+	ld a, 1
+	ld [wTopMenuItemX], a
+.blackboardLoop
+	ld hl, wd730
+	set 6, [hl]
+	coord hl, 0, 0
+	lb bc, 6, 10
+	call TextBoxBorder
+	coord hl, 1, 2
+	ld de, StatusAilmentText1
+	call PlaceString
+	coord hl, 6, 2
+	ld de, StatusAilmentText2
+	call PlaceString
+	ld hl, ViridianSchoolBlackboardText2
+	call PrintText
+	call HandleMenuInput ; pressing up and down is handled in here
+	bit 1, a ; pressed b
+	jr nz, .exitBlackboard
+	bit 4, a ; pressed right
+	jr z, .didNotPressRight
+	; move cursor to right column
+	ld a, 2
+	ld [wMaxMenuItem], a
+	ld a, 2
+	ld [wTopMenuItemY], a
+	ld a, 6
+	ld [wTopMenuItemX], a
+	ld a, 3 ; in the the right column, use an offset to prevent overlap
+	ld [wMenuItemOffset], a
+	jr .blackboardLoop
+.didNotPressRight
+	bit 5, a ; pressed left
+	jr z, .didNotPressLeftOrRight
+	; move cursor to left column
+	ld a, 2
+	ld [wMaxMenuItem], a
+	ld a, 2
+	ld [wTopMenuItemY], a
+	ld a, 1
+	ld [wTopMenuItemX], a
+	xor a
+	ld [wMenuItemOffset], a
+	jr .blackboardLoop
+.didNotPressLeftOrRight
+	ld a, [wCurrentMenuItem]
+	ld b, a
+	ld a, [wMenuItemOffset]
+	add b
+	cp 5 ; cursor is pointing to "QUIT"
+	jr z, .exitBlackboard
+	; we must have pressed a on a status condition
+	; so print the text
+	ld hl, wd730
+	res 6, [hl]
+	ld hl, ViridianBlackboardStatusPointers
+	add a
+	ld d, 0
+	ld e, a
+	add hl, de
+	ld a, [hli]
+	ld h, [hl]
+	ld l, a
+	call PrintText
+	jp .blackboardLoop
+.exitBlackboard
+	ld hl, wd730
+	res 6, [hl]
+	call LoadScreenTilesFromBuffer1
+	jp TextScriptEnd
+
+ViridianSchoolBlackboardText1:
+	TX_FAR _ViridianSchoolBlackboardText1
+	db "@"
+
+ViridianSchoolBlackboardText2:
+	TX_FAR _ViridianSchoolBlackboardText2
+	db "@"
+
+StatusAilmentText1:
+	db   " SLF"
+	next " GIF"
+	next " PAR@"
+
+StatusAilmentText2:
+	db   " BRT"
+	next " GFR"
+	next " ZUR.@"
+
+ViridianBlackboardStatusPointers:
+	dw ViridianBlackboardSleepText
+	dw ViridianBlackboardPoisonText
+	dw ViridianBlackboardPrlzText
+	dw ViridianBlackboardBurnText
+	dw ViridianBlackboardFrozenText
+
+ViridianBlackboardSleepText:
+	TX_FAR _ViridianBlackboardSleepText
+	db "@"
+
+ViridianBlackboardPoisonText:
+	TX_FAR _ViridianBlackboardPoisonText
+	db "@"
+
+ViridianBlackboardPrlzText:
+	TX_FAR _ViridianBlackboardPrlzText
+	db "@"
+
+ViridianBlackboardBurnText:
+	TX_FAR _ViridianBlackboardBurnText
+	db "@"
+
+ViridianBlackboardFrozenText:
+	TX_FAR _ViridianBlackboardFrozenText
+	db "@"
+
+PrintTrashText:
+	call EnableAutoTextBoxDrawing
+	tx_pre_jump VermilionGymTrashText
+
+VermilionGymTrashText:
+	TX_FAR _VermilionGymTrashText
+	db "@"
+
+GymTrashScript:
+	call EnableAutoTextBoxDrawing
+	ld a, [wHiddenObjectFunctionArgument]
+	ld [wGymTrashCanIndex], a
+
+; Don't do the trash can puzzle if it's already been done.
+	CheckEvent EVENT_2ND_LOCK_OPENED
+	jr z, .ok
+
+	tx_pre_jump VermilionGymTrashText
+
+.ok
+	CheckEventReuseA EVENT_1ST_LOCK_OPENED
+	jr nz, .trySecondLock
+
+	ld a, [wFirstLockTrashCanIndex]
+	ld b, a
+	ld a, [wGymTrashCanIndex]
+	cp b
+	jr z, .openFirstLock
+
+	tx_pre_id VermilionGymTrashText
+	jr .done
+
+.openFirstLock
+; Next can is trying for the second switch.
+	SetEvent EVENT_1ST_LOCK_OPENED
+
+	ld hl, GymTrashCans
+	ld a, [wGymTrashCanIndex]
+	; * 5
+	ld b, a
+	add a
+	add a
+	add b
+
+	ld d, 0
+	ld e, a
+	add hl, de
+	ld a, [hli]
+
+; There is a bug in this code. It should calculate a value in the range [0, 3]
+; but if the mask and random number don't have any 1 bits in common, then
+; the result of the AND will be 0. When 1 is subtracted from that, the value
+; will become $ff. This will result in 255 being added to hl, which will cause
+; hl to point to one of the zero bytes that pad the end of the ROM bank.
+; Trash can 0 was intended to be able to have the second lock only when the
+; first lock was in trash can 1 or 3. However, due to this bug, trash can 0 can
+; have the second lock regardless of which trash can had the first lock.
+
+	ld [hGymTrashCanRandNumMask], a
+	push hl
+	call Random
+	swap a
+	ld b, a
+	ld a, [hGymTrashCanRandNumMask]
+	and b
+	dec a
+	pop hl
+
+	ld d, 0
+	ld e, a
+	add hl, de
+	ld a, [hl]
+	and $f
+	ld [wSecondLockTrashCanIndex], a
+
+	tx_pre_id VermilionGymTrashSuccessText1
+	jr .done
+
+.trySecondLock
+	ld a, [wSecondLockTrashCanIndex]
+	ld b, a
+	ld a, [wGymTrashCanIndex]
+	cp b
+	jr z, .openSecondLock
+
+; Reset the cans.
+	ResetEvent EVENT_1ST_LOCK_OPENED
+	call Random
+
+	and $e
+	ld [wFirstLockTrashCanIndex], a
+
+	tx_pre_id VermilionGymTrashFailText
+	jr .done
+
+.openSecondLock
+; Completed the trash can puzzle.
+	SetEvent EVENT_2ND_LOCK_OPENED
+	ld hl, wCurrentMapScriptFlags
+	set 6, [hl]
+
+	tx_pre_id VermilionGymTrashSuccessText3
+
+.done
+	jp PrintPredefTextID
+
+GymTrashCans:
+; byte 0: mask for random number
+; bytes 1-4: indices of the trash cans that can have the second lock
+;            (but see the comment above explaining a bug regarding this)
+; Note that the mask is simply the number of valid trash can indices that
+; follow. The remaining bytes are filled with 0 to pad the length of each entry
+; to 5 bytes.
+	db 2,  1,  3,  0,  0 ; 0
+	db 3,  0,  2,  4,  0 ; 1
+	db 2,  1,  5,  0,  0 ; 2
+	db 3,  0,  4,  6,  0 ; 3
+	db 4,  1,  3,  5,  7 ; 4
+	db 3,  2,  4,  8,  0 ; 5
+	db 3,  3,  7,  9,  0 ; 6
+	db 4,  4,  6,  8, 10 ; 7
+	db 3,  5,  7, 11,  0 ; 8
+	db 3,  6, 10, 12,  0 ; 9
+	db 4,  7,  9, 11, 13 ; 10
+	db 3,  8, 10, 14,  0 ; 11
+	db 2,  9, 13,  0,  0 ; 12
+	db 3, 10, 12, 14,  0 ; 13
+	db 2, 11, 13,  0,  0 ; 14
+
+VermilionGymTrashSuccessText1:
+	TX_FAR _VermilionGymTrashSuccessText1
+	TX_ASM
+	call WaitForSoundToFinish
+	ld a, SFX_SWITCH
+	call PlaySound
+	call WaitForSoundToFinish
+	jp TextScriptEnd
+
+; unused
+VermilionGymTrashSuccessText2:
+	TX_FAR _VermilionGymTrashSuccessText2
+	db "@"
+
+; unused
+VermilionGymTrashSuccesPlaySfx:
+	TX_ASM
+	call WaitForSoundToFinish
+	ld a, SFX_SWITCH
+	call PlaySound
+	call WaitForSoundToFinish
+	jp TextScriptEnd
+
+VermilionGymTrashSuccessText3:
+	TX_FAR _VermilionGymTrashSuccessText3
+	TX_ASM
+	call WaitForSoundToFinish
+	ld a, SFX_GO_INSIDE
+	call PlaySound
+	call WaitForSoundToFinish
+	jp TextScriptEnd
+
+VermilionGymTrashFailText:
+	TX_FAR _VermilionGymTrashFailText
+	TX_ASM
+	call WaitForSoundToFinish
+	ld a, SFX_DENIED
+	call PlaySound
+	call WaitForSoundToFinish
+	jp TextScriptEnd