// gen_swimmers --poly=-7,-27:6,-56:78,-23:66,7 --swimmers=5 --sep=20
poly = pts={-7,-27:6,-56:78,-23:66,7}
swimmer = name=p01, x=54.9, y=-5.1
swimmer = name=p02, x=20.8, y=-33.8
swimmer = name=p03, x=38.95, y=-19.38
swimmer = name=p04, x=12.39, y=-52.32
swimmer = name=p05, x=0.2, y=-35.39