def cmd_LOGIN(game, nick, connection_id):
for t in [t for t in game.things if t.type_ == 'player' and t.nickname == nick]:
raise GameError('name already in use')
def cmd_LOGIN(game, nick, connection_id):
for t in [t for t in game.things if t.type_ == 'player' and t.nickname == nick]:
raise GameError('name already in use')