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from __future__ import annotations
from datetime import datetime
class Player:
all_players: list[Player] = []
name: str
elo: int
total_games: int
def __init__(self, name: str):
self.name = name
self.elo = 1000
self.total_games = 0
self.all_players.append(self)
def __str__(self):
return self.name
@staticmethod
def print_ladder():
print(f"Ladder ({datetime.now().strftime('%d/%m/%Y %H:%M')}):")
print("=" * 30)
for rank, player in enumerate(
sorted(Player.all_players, key=lambda player: player.elo, reverse=True)
):
print(
f"{rank+1}.\t{player.name:<20}: {player.elo:>4d} points, {player.total_games:>3d} games"
)
Emma = Player(name="Emma")
Kim = Player(name="Kim")
Pierre = Player(name="Pierre")
Theo = Player(name="Théo")
Leila = Player(name="Leïla")
Martin = Player(name="Martin")
Clementine = Player(name="Clémentine")
Thomas = Player(name="Thomas")
Baptiste = Player(name="Baptiste")
Tanguy = Player(name="Tanguy")
D = 400
K = 32
class Game:
scores: dict[Player, int]
played_at: datetime
def __str__(self) -> str:
total_points = sum(self.scores.values())
return f"Game played at {self.played_at} ({total_points} total points)"
def __init__(self, played_at: datetime, scores: dict[Player, int]):
self.scores = scores
self.played_at = played_at
def get_players_elo_updates(self) -> dict[Player, float]:
players_elo_updates = {player: 0.0 for player in self.scores}
for player in self.scores:
player.total_games += 1
for player_1, score_1 in self.scores.items():
for player_2, score_2 in self.scores.items():
if player_1 != player_2:
expected_score = 1 / (1 + 10 ** ((player_2.elo - player_1.elo) / D))
result = (
1.0 if score_1 > score_2 else 0.0 if score_1 < score_2 else 0.5
)
players_elo_updates[player_1] += K * (result - expected_score)
return players_elo_updates
games: list[Game] = [
Game(
datetime(2022, 11, 11, 16, 30),
{Theo: 53, Leila: 32, Clementine: 53, Emma: 48, Kim: 50, Martin: 51},
),
Game(
datetime(2022, 11, 11, 17, 0),
{Emma: 53, Kim: 57, Pierre: 48, Theo: 44, Leila: 32, Martin: 57},
),
Game(
datetime(2022, 11, 11, 18, 45),
{Thomas: 58, Baptiste: 45, Pierre: 54, Theo: 65, Emma: 42, Martin: 53},
),
Game(
datetime(2022, 11, 11, 21, 0),
{Kim: 50, Theo: 50, Emma: 53, Clementine: 55, Pierre: 46, Baptiste: 54},
),
Game(
datetime(2022, 11, 11, 21, 30),
{
Kim: 41,
Leila: 32,
Theo: 48,
Emma: 49,
Clementine: 52,
Pierre: 54,
Baptiste: 59,
},
),
Game(
datetime(2022, 11, 11, 22, 0), {Clementine: 47, Pierre: 46, Theo: 57, Emma: 42}
),
Game(
datetime(2022, 11, 11, 22, 32), {Clementine: 43, Pierre: 51, Theo: 40, Emma: 39}
),
Game(
datetime(2022, 11, 12, 12, 48),
{Pierre: 58, Theo: 52, Emma: 59, Thomas: 50, Baptiste: 52},
),
Game(datetime(2022, 11, 12, 13, 18), {Emma: 41, Theo: 53, Pierre: 44}),
Game(datetime(2022, 11, 12, 13, 47), {Emma: 65, Thomas: 59, Pierre: 54}),
Game(
datetime(2022, 11, 12, 14, 15),
{Pierre: 57, Emma: 52, Martin: 45, Clementine: 47},
),
Game(datetime(2022, 11, 12, 14, 47), {Pierre: 51, Emma: 47, Clementine: 56}),
Game(
datetime(2022, 11, 12, 19, 6),
{Clementine: 43, Kim: 47, Theo: 13, Pierre: 47, Emma: 62},
),
Game(
datetime(2022, 11, 13, 12, 31),
{Theo: 43, Thomas: 37, Tanguy: 44, Pierre: 47, Emma: 61},
),
Game(
datetime(2022, 11, 13, 12, 54),
{
Tanguy: 54,
Clementine: 47,
Theo: 65,
Thomas: 44,
Pierre: 60,
Kim: 58,
Emma: 46,
},
),
Game(datetime(2022, 11, 13, 13, 25), {Pierre: 52, Emma: 68, Clementine: 57}),
]
for game in games:
print(game)
print("=" * 30)
players_elo_updates = game.get_players_elo_updates()
for (player, elo_update) in players_elo_updates.items():
player.elo += int(elo_update)
print(f"\t{player.name:<20}{int(elo_update):+}\t({player.elo:>4d})")
Player.print_ladder()
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