def _bye_if_odd(self, round, ranking):
"""
If ranking player count is odd, pops a random player from a group of
players with the lowest score and who didn't receive a bye yet, and
gives them a bye. Returns odd-length ranking.
"""
if odd(ranking):
bye_candidates = [x for x in ranking
if not x['player'].competitor.received_bye]
if not bye_candidates:
# everyone received a bye -- it's probably messed up
# TODO: logging
return []
bye_candidates.sort(key=lambda x: x['points'])
lowest_points = bye_candidates[0]['points']
lp_group = [x for x in bye_candidates if x['points'] == lowest_points]
bye_receiver = pop_random(lp_group)
ranking.pop(ranking.index(bye_receiver))
competitor = bye_receiver['player'].competitor
competitor.received_bye = True
competitor.extra_points = 3
competitor.extra_buchholz = round.index * 3 + 1
competitor.save()
return ranking
def rmg():
while True:
maps = list(all_maps)
while len(maps) > 0:
yield pop_random(maps)
def make_pairs_random(self, round, ranking):
ranking = self._bye_if_odd(round, ranking)
while len(ranking) > 1:
yield pop_random(ranking), pop_random(ranking)