pokecrystal/engine/events/name_rater.asm

220 lines
3.7 KiB
NASM

_NameRater:
; Introduce himself
ld hl, NameRaterHelloText
call PrintText
call YesNoBox
jp c, .cancel
; Select a Pokemon from your party
ld hl, NameRaterWhichMonText
call PrintText
farcall SelectMonFromParty
jr c, .cancel
; He can't rename an egg...
ld a, [wCurPartySpecies]
cp EGG
jr z, .egg
; ... or a Pokemon you got from a trade.
call GetCurNick
call CheckIfMonIsYourOT
jr c, .traded
; This name is good, but we can do better. How about it?
ld hl, NameRaterBetterNameText
call PrintText
call YesNoBox
jr c, .cancel
; What name shall I give it then?
ld hl, NameRaterWhatNameText
call PrintText
; Load the new nickname into wStringBuffer2
xor a ; PARTYMON
ld [wMonType], a
ld a, [wCurPartySpecies]
ld [wNamedObjectIndexBuffer], a
ld [wCurSpecies], a
call GetBaseData
ld b, NAME_MON
ld de, wStringBuffer2
farcall _NamingScreen
; If the new name is empty, treat it as unchanged.
call IsNewNameEmpty
ld hl, NameRaterSameNameText
jr c, .samename
; If the new name is the same as the old name, treat it as unchanged.
call CompareNewToOld
ld hl, NameRaterSameNameText
jr c, .samename
; Copy the new name from wStringBuffer2
ld hl, wPartyMonNicknames
ld bc, MON_NAME_LENGTH
ld a, [wCurPartyMon]
call AddNTimes
ld e, l
ld d, h
ld hl, wStringBuffer2
ld bc, MON_NAME_LENGTH
call CopyBytes
ld hl, NameRaterFinishedText
.samename
push hl
call GetCurNick
ld hl, NameRaterNamedText
call PrintText
pop hl
jr .done
.traded
ld hl, NameRaterPerfectNameText
jr .done
.cancel
ld hl, NameRaterComeAgainText
jr .done
.egg
ld hl, NameRaterEggText
.done
call PrintText
ret
CheckIfMonIsYourOT:
; Checks to see if the partymon loaded in [wCurPartyMon] has the different OT as you. Returns carry if not.
ld hl, wPartyMonOT
ld bc, NAME_LENGTH
ld a, [wCurPartyMon]
call AddNTimes
ld de, wPlayerName
ld c, NAME_LENGTH
call .loop
jr c, .nope
ld hl, wPartyMon1ID
ld bc, PARTYMON_STRUCT_LENGTH
ld a, [wCurPartyMon]
call AddNTimes
ld de, wPlayerID
ld c, 2 ; number of bytes in which your ID is stored
.loop
ld a, [de]
cp [hl]
jr nz, .nope
inc hl
inc de
dec c
jr nz, .loop
and a
ret
.nope
scf
ret
IsNewNameEmpty:
; Checks to see if the nickname loaded in wStringBuffer2 is empty. If so, return carry.
ld hl, wStringBuffer2
ld c, MON_NAME_LENGTH - 1
.loop
ld a, [hli]
cp "@"
jr z, .terminator
cp " "
jr nz, .nonspace
dec c
jr nz, .loop
.terminator
scf
ret
.nonspace
and a
ret
CompareNewToOld:
; Compares the nickname in wStringBuffer2 to the previous nickname. If they are the same, return carry.
ld hl, wPartyMonNicknames
ld bc, MON_NAME_LENGTH
ld a, [wCurPartyMon]
call AddNTimes
push hl
call GetNicknameLength
ld b, c
ld hl, wStringBuffer2
call GetNicknameLength
pop hl
ld a, c
cp b
jr nz, .different
ld de, wStringBuffer2
.loop
ld a, [de]
cp "@"
jr z, .terminator
cp [hl]
jr nz, .different
inc hl
inc de
jr .loop
.different
and a
ret
.terminator
scf
ret
GetNicknameLength:
; Gets the length of the name starting at hl and returns it in c.
ld c, 0
.loop
ld a, [hli]
cp "@"
ret z
inc c
ld a, c
cp MON_NAME_LENGTH - 1
jr nz, .loop
ret
NameRaterHelloText:
text_far _NameRaterHelloText
text_end
NameRaterWhichMonText:
text_far _NameRaterWhichMonText
text_end
NameRaterBetterNameText:
text_far _NameRaterBetterNameText
text_end
NameRaterWhatNameText:
text_far _NameRaterWhatNameText
text_end
NameRaterFinishedText:
text_far _NameRaterFinishedText
text_end
NameRaterComeAgainText:
text_far _NameRaterComeAgainText
text_end
NameRaterPerfectNameText:
text_far _NameRaterPerfectNameText
text_end
NameRaterEggText:
text_far _NameRaterEggText
text_end
NameRaterSameNameText:
text_far _NameRaterSameNameText
text_end
NameRaterNamedText:
text_far _NameRaterNamedText
text_end