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path: root/src/engine/copy_card_name.asm
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; copy the name and level of the card at wLoadedCard1 to wDefaultText
; a = length in number of tiles (the resulting string will be padded with spaces to match it)
_CopyCardNameAndLevel:
	push bc
	push de
	ld [wCardNameLength], a
	ld hl, wLoadedCard1Name
	ld a, [hli]
	ld h, [hl]
	ld l, a
	ld de, wDefaultText
	push de
	call CopyText ; copy card name to wDefaultText
	pop hl
	ld a, [hli]
	cp TX_HALFWIDTH
	jp z, _CopyCardNameAndLevel_HalfwidthText

; the name doesn't start with TX_HALFWIDTH
; this doesn't appear to be ever the case (unless caller manipulates wLoadedCard1Name)
	ld a, [wCardNameLength]
	ld c, a
	ld a, [wLoadedCard1Type]
	cp TYPE_ENERGY
	jr nc, .level_done ; jump if energy or trainer
	ld a, [wLoadedCard1Level]
	or a
	jr z, .level_done
	inc c
	inc c
	ld a, [wLoadedCard1Level]
	cp 10
	jr c, .level_done
	inc c ; second digit
.level_done
	ld hl, wLoadedCard1Name
	ld a, [hli]
	ld h, [hl]
	ld l, a
	ld de, wDefaultText
	push de
	call CopyText
	pop hl
	push de
	ld e, c
	call GetTextLengthInTiles
	add e
	ld c, a
	pop hl
	push hl
.fill_loop
	ld a, $70
	ld [hli], a
	dec c
	jr nz, .fill_loop
	ld [hl], TX_END
	pop hl
	ld a, [wLoadedCard1Type]
	cp TYPE_ENERGY
	jr nc, .done
	ld a, [wLoadedCard1Level]
	or a
	jr z, .done
	ld a, TX_SYMBOL
	ld [hli], a
	ld [hl], SYM_Lv
	inc hl
	ld a, [wLoadedCard1Level]
	cp 10
	jr c, .one_digit
	ld [hl], TX_SYMBOL
	inc hl
	ld b, SYM_0 - 1
.first_digit_loop
	inc b
	sub 10
	jr nc, .first_digit_loop
	add 10
	ld [hl], b ; first digit
	inc hl
.one_digit
	ld [hl], TX_SYMBOL
	inc hl
	add SYM_0
	ld [hl], a ; last (or only) digit
	inc hl
.done
	pop de
	pop bc
	ret

; the name starts with TX_HALFWIDTH
_CopyCardNameAndLevel_HalfwidthText:
	ld a, [wCardNameLength]
	inc a
	add a
	ld b, a
	ld hl, wDefaultText
.find_end_text_loop
	dec b
	ld a, [hli]
	or a ; TX_END
	jr nz, .find_end_text_loop
	dec hl
	ld a, [wLoadedCard1Type]
	cp TYPE_ENERGY
	jr nc, .level_done
	ld a, [wLoadedCard1Level]
	or a
	jr z, .level_done
	ld c, a
	ld a, " "
	ld [hli], a
	dec b
	ld a, "L"
	ld [hli], a
	dec b
	ld a, "v"
	ld [hli], a
	dec b
	ld a, c
	cp 10
	jr c, .got_level
	push bc
	ld b, "0" - 1
.first_digit_loop
	inc b
	sub 10
	jr nc, .first_digit_loop
	add 10
	ld [hl], b ; first digit
	inc hl
	pop bc
	ld c, a
	dec b
.got_level
	ld a, c
	add "0"
	ld [hli], a ; last (or only) digit
	dec b
.level_done
	push hl
	ld a, " "
.fill_spaces_loop
	ld [hli], a
	dec b
	jr nz, .fill_spaces_loop
	ld [hl], TX_END
	pop hl
	pop de
	pop bc
	ret