def mkDevice(screen, x, y, id):
if id.isdigit():
subnet = Subnet(screen, x, y)
subnet.IP = IP(int(id))
return subnet
elif id == "N":
dns = DNS(screen, x, y)
dns.IP = str(ord(list(id)[0]))
return dns
elif id.isupper():
router = Router(screen, x, y)
router.IP = str(ord(list(id)[0]))
router.selected = router.IP == "66"
return router
elif id.islower():
if id == "h":
host = Client(screen, x, y)
host.name = "Alice"
host.corespondent = "Bob"
elif id == "x":
host = Client(screen, x, y)
host.name = "Bob"
host.corespondent = "Alice"
else:
host = Host(screen, x ,y)
host.IP = str(ord(list(id)[0]))
return host
else:
print "Unrecognized unique identifier in sprite map"
return None
