ref: a7dca30971a049a525e33bc43eaf2b18ce899c5e dir: /data/maps/headers/Route15.asm/
map_header Route15, ROUTE_15, OVERWORLD, WEST | EAST connection west, FuchsiaCity, FUCHSIA_CITY, -4 connection east, Route14, ROUTE_14, -18 end_map_header