1 files changed, 226 insertions, 0 deletions
diff --git a/event/lucky_number.asm b/event/lucky_number.asm
new file mode 100644
index 000000000..4488cfcc9
--- /dev/null
+++ b/event/lucky_number.asm
@@ -0,0 +1,226 @@
+Special_CheckForLuckyNumberWinners: ; 4d87a
+	xor a
+	ld [ScriptVar], a
+	ld [wFoundMatchingIDInParty], a
+	ld a, [PartyCount]
+	and a
+	ret z
+	ld d, a
+	ld hl, PartyMon1ID
+	ld bc, PartySpecies
+.PartyLoop:
+	ld a, [bc]
+	inc bc
+	cp EGG
+	call nz, .CompareLuckyNumberToMonID
+	push bc
+	ld bc, PARTYMON_STRUCT_LENGTH
+	add hl, bc
+	pop bc
+	dec d
+	jr nz, .PartyLoop
+	ld a, BANK(sBox)
+	call GetSRAMBank
+	ld a, [sBoxCount]
+	and a
+	jr z, .SkipOpenBox
+	ld d, a
+	ld hl, sBoxMon1ID
+	ld bc, sBoxSpecies
+.OpenBoxLoop:
+	ld a, [bc]
+	inc bc
+	cp EGG
+	jr z, .SkipOpenBoxMon
+	call .CompareLuckyNumberToMonID
+	jr nc, .SkipOpenBoxMon
+	ld a, 1
+	ld [wFoundMatchingIDInParty], a
+
+.SkipOpenBoxMon:
+	push bc
+	ld bc, BOXMON_STRUCT_LENGTH
+	add hl, bc
+	pop bc
+	dec d
+	jr nz, .OpenBoxLoop
+
+.SkipOpenBox:
+	call CloseSRAM
+	ld c, $0
+.BoxesLoop:
+	ld a, [wCurBox]
+	and $f
+	cp c
+	jr z, .SkipBox
+	ld hl, .BoxBankAddresses
+	ld b, 0
+	add hl, bc
+	add hl, bc
+	add hl, bc
+	ld a, [hli]
+	call GetSRAMBank
+	ld a, [hli]
+	ld h, [hl]
+	ld l, a ; hl now contains the address of the loaded box in SRAM
+	ld a, [hl]
+	and a
+	jr z, .SkipBox ; no mons in this box
+	push bc
+	ld b, h
+	ld c, l
+	inc bc
+	ld de, sBoxMon1ID - sBox
+	add hl, de
+	ld d, a
+.BoxNLoop:
+	ld a, [bc]
+	inc bc
+	cp EGG
+	jr z, .SkipBoxMon
+
+	call .CompareLuckyNumberToMonID ; sets ScriptVar and CurPartySpecies appropriately
+	jr nc, .SkipBoxMon
+	ld a, 1
+	ld [wFoundMatchingIDInParty], a
+
+.SkipBoxMon:
+	push bc
+	ld bc, BOXMON_STRUCT_LENGTH
+	add hl, bc
+	pop bc
+	dec d
+	jr nz, .BoxNLoop
+	pop bc
+
+.SkipBox:
+	inc c
+	ld a, c
+	cp NUM_BOXES
+	jr c, .BoxesLoop
+
+	call CloseSRAM
+	ld a, [ScriptVar]
+	and a
+	ret z ; found nothing
+	farcall TrainerRankings_LuckyNumberShow
+	ld a, [wFoundMatchingIDInParty]
+	and a
+	push af
+	ld a, [CurPartySpecies]
+	ld [wNamedObjectIndexBuffer], a
+	call GetPokemonName
+	ld hl, .FoundPartymonText
+	pop af
+	jr z, .print
+	ld hl, .FoundBoxmonText
+
+.print
+	jp PrintText
+
+.CompareLuckyNumberToMonID: ; 4d939
+	push bc
+	push de
+	push hl
+	ld d, h
+	ld e, l
+	ld hl, Buffer1
+	lb bc, PRINTNUM_LEADINGZEROS | 2, 5
+	call PrintNum
+	ld hl, LuckyNumberDigit1Buffer
+	ld de, wLuckyIDNumber
+	lb bc, PRINTNUM_LEADINGZEROS | 2, 5
+	call PrintNum
+	ld b, 5
+	ld c, 0
+	ld hl, LuckyNumberDigit5Buffer
+	ld de, Buffer5
+.loop
+	ld a, [de]
+	cp [hl]
+	jr nz, .done
+	dec de
+	dec hl
+	inc c
+	dec b
+	jr nz, .loop
+
+.done
+	pop hl
+	push hl
+	ld de, -6
+	add hl, de
+	ld a, [hl]
+	pop hl
+	pop de
+	push af
+	ld a, c
+	ld b, 1
+	cp 5
+	jr z, .okay
+	ld b, 2
+	cp 3
+	jr nc, .okay
+	ld b, 3
+	cp 2
+	jr nz, .nomatch
+
+.okay
+	inc b
+	ld a, [ScriptVar]
+	and a
+	jr z, .bettermatch
+	cp b
+	jr c, .nomatch
+
+.bettermatch
+	dec b
+	ld a, b
+	ld [ScriptVar], a
+	pop bc
+	ld a, b
+	ld [CurPartySpecies], a
+	pop bc
+	scf
+	ret
+
+.nomatch
+	pop bc
+	pop bc
+	and a
+	ret
+
+.BoxBankAddresses: ; 4d99f
+	dba sBox1
+	dba sBox2
+	dba sBox3
+	dba sBox4
+	dba sBox5
+	dba sBox6
+	dba sBox7
+	dba sBox8
+	dba sBox9
+	dba sBox10
+	dba sBox11
+	dba sBox12
+	dba sBox13
+	dba sBox14
+
+.FoundPartymonText: ; 0x4d9c9
+	; Congratulations! We have a match with the ID number of @  in your party.
+	text_jump UnknownText_0x1c1261
+	db "@"
+
+.FoundBoxmonText: ; 0x4d9ce
+	; Congratulations! We have a match with the ID number of @  in your PC BOX.
+	text_jump UnknownText_0x1c12ae
+	db "@"
+
+Special_PrintTodaysLuckyNumber: ; 4d9d3
+	ld hl, StringBuffer3
+	ld de, wLuckyIDNumber
+	lb bc, PRINTNUM_LEADINGZEROS | 2, 5
+	call PrintNum
+	ld a, "@"
+	ld [StringBuffer3 + 5], a
+	ret