2 files changed, 179 insertions, 0 deletions
diff --git a/engine/link/time_capsule.asm b/engine/link/time_capsule.asm
new file mode 100755
index 00000000..adbb3300
--- /dev/null
+++ b/engine/link/time_capsule.asm
@@ -0,0 +1,140 @@
+; These functions seem to be related to backwards compatibility
+
+ValidateOTTrademon:
+	ld a, [wceee]
+	ld hl, wOTPartyMon1Species
+	call GetPartyLocation
+	push hl
+	ld a, [wceee]
+	inc a
+	ld c, a
+	ld b, 0
+	ld hl, wOTPartyCount
+	add hl, bc
+	ld a, [hl]
+	pop hl
+	cp EGG
+	jr z, .matching_or_egg
+	cp [hl]
+	jr nz, .abnormal
+
+.matching_or_egg
+	ld b, h
+	ld c, l
+	ld hl, MON_LEVEL
+	add hl, bc
+	ld a, [hl]
+	cp MAX_LEVEL + 1
+	jr nc, .abnormal
+	ld a, [wLinkMode]
+	cp LINK_TIMECAPSULE
+	jr nz, .normal
+	ld hl, wOTPartySpecies
+	ld a, [wceee]
+	ld c, a
+	ld b, 0
+	add hl, bc
+	ld a, [hl]
+
+	; Magnemite and Magneton's types changed
+	; from Electric to Electric/Steel.
+	cp MAGNEMITE
+	jr z, .normal
+	cp MAGNETON
+	jr z, .normal
+
+	ld [wCurSpecies], a
+	call GetBaseData
+	ld hl, wLinkOTPartyMonTypes
+	add hl, bc
+	add hl, bc
+	ld a, [wBaseType1]
+	cp [hl]
+	jr nz, .abnormal
+	inc hl
+	ld a, [wBaseType2]
+	cp [hl]
+	jr nz, .abnormal
+
+.normal
+	and a
+	ret
+
+.abnormal
+	scf
+	ret
+
+Functionfb6ed:
+	ld a, [wceed]
+	ld d, a
+	ld a, [wPartyCount]
+	ld b, a
+	ld c, $0
+.loop
+	ld a, c
+	cp d
+	jr z, .next
+	push bc
+	ld a, c
+	ld hl, wPartyMon1HP
+	call GetPartyLocation
+	pop bc
+	ld a, [hli]
+	or [hl]
+	jr nz, .done
+
+.next
+	inc c
+	dec b
+	jr nz, .loop
+	ld a, [wceee]
+	ld hl, wOTPartyMon1HP
+	call GetPartyLocation
+	ld a, [hli]
+	or [hl]
+	jr nz, .done
+	scf
+	ret
+
+.done
+	and a
+	ret
+
+PlaceTradePartnerNamesAndParty:
+	hlcoord 2, 0
+	ld de, wPlayerName
+	call PlaceString
+	hlcoord 2, 8
+	ld de, wOTPlayerName
+	call PlaceString
+	hlcoord 7, 1
+	ld de, wPartySpecies
+	call .PlaceSpeciesNames
+	hlcoord 7, 9
+	ld de, wOTPartySpecies
+.PlaceSpeciesNames:
+	ld c, 0
+.loop
+	ld a, [de]
+	cp -1
+	ret z
+	ld [wNamedObjectIndexBuffer], a
+	push bc
+	push hl
+	push de
+	push hl
+	ld a, c
+	ldh [hProduct], a
+	call GetPokemonName
+	pop hl
+	call PlaceString
+	pop de
+	inc de
+	pop hl
+	ld bc, SCREEN_WIDTH
+	add hl, bc
+	pop bc
+	inc c
+	jr .loop
+
+INCLUDE "data/pokemon/gen1_base_special.asm"
diff --git a/engine/link/time_capsule_2.asm b/engine/link/time_capsule_2.asm
new file mode 100755
index 00000000..6640f6b0
--- /dev/null
+++ b/engine/link/time_capsule_2.asm
@@ -0,0 +1,39 @@
+ConvertMon_2to1:
+; Takes the Gen 2 Pokemon number stored in wTempSpecies,
+; finds it in the Pokered_MonIndices table,
+; and returns its index in wTempSpecies.
+	push bc
+	push hl
+	ld a, [wTempSpecies]
+	ld b, a
+	ld c, 0
+	ld hl, Pokered_MonIndices
+.loop
+	inc c
+	ld a, [hli]
+	cp b
+	jr nz, .loop
+	ld a, c
+	ld [wTempSpecies], a
+	pop hl
+	pop bc
+	ret
+
+ConvertMon_1to2:
+; Takes the Gen 1 Pokemon number stored in wTempSpecies
+; and returns the corresponding value from Pokered_MonIndices in wTempSpecies.
+	push bc
+	push hl
+	ld a, [wTempSpecies]
+	dec a
+	ld hl, Pokered_MonIndices
+	ld b, 0
+	ld c, a
+	add hl, bc
+	ld a, [hl]
+	ld [wTempSpecies], a
+	pop hl
+	pop bc
+	ret
+
+INCLUDE "data/pokemon/gen1_order.asm"