Add engine/rtc/reset_password.asm

2 files changed, 255 insertions, 2 deletions

diff --git a/engine/rtc/reset_password.asm b/engine/rtc/reset_password.asm
new file mode 100755
index 00000000..b935d747
--- /dev/null
+++ b/engine/rtc/reset_password.asm
@@ -0,0 +1,254 @@
+_ResetClock:
+	call ClearTilemap
+	call GetMemSGBLayout
+	call LoadStandardFont
+	call LoadFontsExtra
+	ld de, MUSIC_MAIN_MENU
+	call PlayMusic
+	ld hl, .PasswordAskResetClockText
+	call PrintText
+	ld hl, .NoYes_MenuHeader
+	call CopyMenuHeader
+	call VerticalMenu
+	ret c
+	ld a, [wMenuCursorY]
+	cp 1
+	ret z
+	call ClockResetPassword
+	jr c, .wrongpassword
+	ld a, BANK(sRTCStatusFlags)
+	call OpenSRAM
+	ld a, $80
+	ld [sRTCStatusFlags], a
+	call CloseSRAM
+	ld hl, .PasswordAskResetText
+	call PrintText
+	ret
+
+.wrongpassword
+	ld hl, .PasswordWrongText
+	call PrintText
+	ret
+
+.PasswordAskResetText:
+	text_far _PasswordAskResetText
+	text_end
+
+.PasswordWrongText:
+	text_far _PasswordWrongText
+	text_end
+
+.PasswordAskResetClockText:
+	text_far _PasswordAskResetClockText
+	text_end
+
+.NoYes_MenuHeader:
+	db 0 ; flags
+	menu_coords 14, 7, SCREEN_WIDTH - 1, TEXTBOX_Y - 1
+	dw .NoYes_MenuData
+	db 1 ; default option
+
+.NoYes_MenuData:
+	db STATICMENU_CURSOR | STATICMENU_NO_TOP_SPACING ; flags
+	db 2 ; items
+	db "NO@"
+	db "YES@"
+
+ClockResetPassword:
+	call .CalculatePassword
+	push de
+	ld hl, wStringBuffer2
+	ld bc, 5
+	xor a
+	call ByteFill
+	ld a, 4
+	ld [wStringBuffer2 + 5], a
+	ld hl, .PasswordAskEnterText
+	call PrintText
+.loop
+	call .updateIDdisplay
+.loop2
+	call JoyTextDelay
+	ldh a, [hJoyLast]
+	ld b, a
+	and A_BUTTON
+	jr nz, .confirm
+	ld a, b
+	and D_PAD
+	jr z, .loop2
+	call .dpadinput
+	ld c, 3
+	call DelayFrames
+	jr .loop
+
+.confirm
+	call .ConvertDecIDToBytes
+	pop de
+	ld a, e
+	cp l
+	jr nz, .nope
+	ld a, d
+	cp h
+	jr nz, .nope
+	and a
+	ret
+
+.nope
+	scf
+	ret
+
+.PasswordAskEnterText:
+	text_far _PasswordAskEnterText
+	text_end
+
+.updateIDdisplay
+	hlcoord 14, 15
+	ld de, wStringBuffer2
+	ld c, 5
+.loop3
+	ld a, [de]
+	add "0"
+	ld [hli], a
+	inc de
+	dec c
+	jr nz, .loop3
+	hlcoord 14, 16
+	ld bc, 5
+	ld a, " "
+	call ByteFill
+	hlcoord 14, 16
+	ld a, [wStringBuffer2 + 5]
+	ld e, a
+	ld d, 0
+	add hl, de
+	ld [hl], "▲"
+	ret
+
+.dpadinput
+	ld a, b
+	and D_LEFT
+	jr nz, .left
+	ld a, b
+	and D_RIGHT
+	jr nz, .right
+	ld a, b
+	and D_UP
+	jr nz, .up
+	ld a, b
+	and D_DOWN
+	jr nz, .down
+	ret
+
+.left
+	ld a, [wStringBuffer2 + 5]
+	and a
+	ret z
+	dec a
+	ld [wStringBuffer2 + 5], a
+	ret
+
+.right
+	ld a, [wStringBuffer2 + 5]
+	cp 4
+	ret z
+	inc a
+	ld [wStringBuffer2 + 5], a
+	ret
+
+.up
+	call .getcurrentdigit
+	ld a, [hl]
+	cp 9
+	jr z, .wraparound_up
+	inc a
+	ld [hl], a
+	ret
+
+.wraparound_up
+	ld [hl], 0
+	ret
+
+.down
+	call .getcurrentdigit
+	ld a, [hl]
+	and a
+	jr z, .wraparound_down
+	dec a
+	ld [hl], a
+	ret
+
+.wraparound_down
+	ld [hl], 9
+	ret
+
+.getcurrentdigit
+	ld a, [wStringBuffer2 + 5]
+	ld e, a
+	ld d, $0
+	ld hl, wStringBuffer2
+	add hl, de
+	ret
+
+.ConvertDecIDToBytes:
+	ld hl, 0
+	ld de, wStringBuffer2 + 4
+	ld bc, 1
+	call .ConvertToBytes
+	ld bc, 10
+	call .ConvertToBytes
+	ld bc, 100
+	call .ConvertToBytes
+	ld bc, 1000
+	call .ConvertToBytes
+	ld bc, 10000
+.ConvertToBytes:
+	ld a, [de]
+	dec de
+	push hl
+	ld hl, 0
+	call AddNTimes
+	ld c, l
+	ld b, h
+	pop hl
+	add hl, bc
+	ret
+
+.CalculatePassword:
+	ld a, BANK(sPlayerData)
+	call OpenSRAM
+	ld de, 0
+	ld hl, sPlayerData + (wPlayerID - wPlayerData)
+	ld c, 2
+	call .ComponentFromNumber
+	ld hl, sPlayerData + (wPlayerName - wPlayerData)
+	ld c, NAME_LENGTH_JAPANESE - 1
+	call .ComponentFromString
+	ld hl, sPlayerData + (wMoney - wPlayerData)
+	ld c, 3
+	call .ComponentFromNumber
+	call CloseSRAM
+	ret
+
+.ComponentFromNumber:
+	ld a, [hli]
+	add e
+	ld e, a
+	ld a, 0
+	adc d
+	ld d, a
+	dec c
+	jr nz, .ComponentFromNumber
+	ret
+
+.ComponentFromString:
+	ld a, [hli]
+	cp "@"
+	ret z
+	add e
+	ld e, a
+	ld a, 0
+	adc d
+	ld d, a
+	dec c
+	jr nz, .ComponentFromString
+	ret
diff --git a/main.asm b/main.asm
index 15a474db..a5a72b74 100644
--- a/main.asm
+++ b/main.asm
@@ -231,9 +231,8 @@ SECTION "bank23", ROMX
 
 INCLUDE "engine/menus/savemenu_copytilemapatonce.asm"
 INCLUDE "engine/phone/phonering_copytilemapatonce.asm"
+INCLUDE "engine/rtc/reset_password.asm"
 
-_ResetClock::
-	dr $8c17a, $8c310
 _DeleteSaveData::
 	dr $8c310, $8c355
 DummyPredef35::