ref: 156f2cc3ef66ccaf21bfe1c8a5066928e772ffac
dir: /home/region.asm/
IsInJohto:: ; Return 0 if the player is in Johto, and 1 in Kanto. ld a, [wMapGroup] ld b, a ld a, [wMapNumber] ld c, a call GetWorldMapLocation cp LANDMARK_FAST_SHIP jr z, .Johto cp LANDMARK_SPECIAL jr nz, .CheckRegion ld a, [wBackupMapGroup] ld b, a ld a, [wBackupMapNumber] ld c, a call GetWorldMapLocation .CheckRegion: cp KANTO_LANDMARK jr nc, .Kanto .Johto: xor a ; JOHTO_REGION ret .Kanto: ld a, KANTO_REGION ret ret_2f3e:: ret