class EloTests(unittest.TestCase, CalculatorTests):
def setUp(self):
self.calculator = EloCalculator()
def test_one_on_one(self):
game_info = EloGameInfo(1200, 200)
teams = Match([{1: (1200, 25)}, {2: (1400, 25)}], [1, 2])
new_ratings = self.calculator.new_ratings(teams, game_info)
self.assertMatchQuality(
0.4805, self.calculator.match_quality(teams, game_info))
self.assertRating(1218.99, new_ratings.rating_by_id(1))
self.assertRating(1381.01, new_ratings.rating_by_id(2))
class EloTests(unittest.TestCase, CalculatorTests):
def setUp(self):
self.calculator = EloCalculator()
def test_one_on_one(self):
game_info = EloGameInfo(1200, 200)
teams = Match([{1: (1200, 25)},
{2: (1400, 25)}],
[1, 2])
new_ratings = self.calculator.new_ratings(teams, game_info)
self.assertMatchQuality(0.4805, self.calculator.match_quality(teams, game_info))
self.assertRating(1218.99, new_ratings.rating_by_id(1))
self.assertRating(1381.01, new_ratings.rating_by_id(2))
class EloService(object):
def __init__(self):
self.calculator = EloCalculator()
def update(self, match, session):
ranking = [1, 2] if match.winner == match.user_1 else [2, 1]
skills_match = SkillsMatch([{
1: match.user_1.elo
}, {
2: match.user_2.elo
}], ranking)
new_ratings = self.calculator.new_ratings(skills_match)
print(new_ratings)
match.user_1.elo = new_ratings.rating_by_id(1).mean
match.user_2.elo = new_ratings.rating_by_id(2).mean
session.add(match.user_1)
session.add(match.user_2)
session.commit()
def save(self, *args, **kwargs):
obj = super(Match, self).save(*args, **kwargs)
win = {}
loss = {}
if self.victory == self.TEAM_A:
winners = self.team_a_players.all()
lossers = self.team_b_players.all()
elif self.victory == self.TEAM_B:
winners = self.team_a_players.all()
lossers = self.team_b_players.all()
else:
return obj
for player in winners:
player.victories += 1
player.save()
win.update({
player.id: (player.ranking, self.FACTOR),
})
for player in lossers:
player.losses += 1
player.save()
loss.update({
player.id: (player.ranking, self.FACTOR),
})
# elo rating
calculator = EloCalculator()
game_info = EloGameInfo(self.BASE_ELO, self.BETA)
teams = MatchElo([win, loss], [1, 2])
new_ratings = calculator.new_ratings(teams, game_info)
for player in winners:
player.ranking = int(new_ratings.rating_by_id(player.id).mean)
player.save()
for player in lossers:
player.ranking = int(new_ratings.rating_by_id(player.id).mean)
player.save()
return obj