First implementation of Iterative Deepening MinMax
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3 changed files with 77 additions and 4 deletions
17
README.md
17
README.md
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@ -70,9 +70,24 @@ class MinmaxPlayerEngine(PlayerEngine):
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class RandomPlayerEngine(PlayerEngine):
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def get_move(board):
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# [...]
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```
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Il est ainsi plus aisé de tester les moteur dans notre programme de base.
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Quatre moteur "joueurs" sont implémentés :
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* `Human` pour gérer des joueurs humain, une saisir utilisateur est demandée
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sous la forme `<pos_x><pos_y>`. Il est aussi possible d'afficher le plateau
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avec la commande `print` ou les coups possibles avec `help`;
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* `Ramdom` va choisir aléatoirement le coup à jouer en fonction des coups;
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possibles;
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* `Minmax` utilise *MinMax* pour déterminer le coup à jouer avec une profondeur
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maximale définie;
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* `AphaBeta` utilise *AlphaBeta* pour déterminer le coup à jouer avec une
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profondeur maximale définie;
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* `IterativeDeepeningMinmax` utilise Minmax avec un temps maximum autorisé
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Le choix de ces moteur se fait en ligne de commande avec
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### Classes HeuristicsEngine
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@ -1,4 +1,4 @@
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import random, math
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import random, math, time
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class PlayerEngine:
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def __init__(self, player, logger, heuristic, options: dict = {}):
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@ -189,3 +189,58 @@ class AlphabetaPlayerEngine(PlayerEngine):
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))
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return alpha, nodes, leafs
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return beta, nodes, leafs
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class MinmaxDeepeningPlayerEngine(PlayerEngine):
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def get_move(self, board):
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super().get_move(board)
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value = -math.inf
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nodes = 1
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leafs = 0
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move = ''
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start_time = time.time()
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for m in board.legal_moves():
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board.push(m)
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v, n, l = self.checkMinMax(board, False, start_time)
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if v > value:
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value = v
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move = m
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self.logger.debug("found a better move: {} (heuristic:{})".format(
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move,
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value
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))
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nodes += n
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leafs += l
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board.pop()
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return move
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def checkMinMax(self, board, friend_move:bool, start_time):
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nodes = 1
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leafs = 0
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move = ''
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if time.time() >= start_time + self.options['time_limit'] or board.is_game_over():
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leafs +=1
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return self.heuristic.get(board, self.player), nodes, leafs
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if friend_move:
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value = -math.inf
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for m in board.legal_moves():
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board.push(m)
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v, n, l = self.checkMinMax(board, False, start_time)
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if v > value:
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value = v
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nodes += n
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leafs += l
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board.pop()
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else:
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value = math.inf
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for m in board.legal_moves():
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board.push(m)
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v, n, l = self.checkMinMax(board, True, start_time)
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if v < value:
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value = v
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board.pop();
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nodes += n
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leafs += l
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return value, nodes, leafs
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@ -1,7 +1,7 @@
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#!/usr/bin/env python3
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from classes.Reversi import Board
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from classes.Engines import RandomPlayerEngine, HumanPlayerEngine, MinmaxPlayerEngine, AlphabetaPlayerEngine
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from classes.Engines import RandomPlayerEngine, HumanPlayerEngine, MinmaxPlayerEngine, AlphabetaPlayerEngine, MinmaxDeepeningPlayerEngine
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from classes.Heuristic import ScoreHeuristicEngine, WeightHeuristicEngine, FullHeuristicEngine
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import logging as log
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import argparse as arg
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@ -12,7 +12,7 @@ from classes.CustomFormater import CustomFormatter
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Function to parse command line arguments
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"""
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def parse_aguments():
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engines_choices=['random', 'human', 'minmax', 'alphabeta']
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engines_choices=['random', 'human', 'minmax', 'alphabeta', 'id_minmax']
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heuristic_choices=['score', 'weight', 'full']
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parser = arg.ArgumentParser('Playing Reversi with (virtual) friend')
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@ -78,6 +78,7 @@ if __name__ == '__main__':
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"human": HumanPlayerEngine,
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"minmax": MinmaxPlayerEngine,
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"alphabeta": AlphabetaPlayerEngine,
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"id_minmax": MinmaxDeepeningPlayerEngine,
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}
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heuristic_engine = {
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"score": ScoreHeuristicEngine,
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@ -117,6 +118,7 @@ if __name__ == '__main__':
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),
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{
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'depth': args.white_depth_exploration,
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'time_limit': 10
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}
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)
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bplayer = player_engines[args.black_engine](
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@ -129,6 +131,7 @@ if __name__ == '__main__':
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),
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{
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'depth': args.black_depth_exploration,
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'time_limit': 10
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}
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)
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while ( not game.is_game_over()):
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