// 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=14, y=-38.3
swimmer = name=p02, x=69.9, y=-7.5
swimmer = name=p03, x=41.2, y=-8.5
swimmer = name=p04, x=40.04, y=-29.26
swimmer = name=p05, x=22.8, y=-18.7