backgammon/bot.py

from cup import Cup
from network import Network
from board import Board

import tensorflow as tf
import numpy as np
import random

class Bot:
    def __init__(self, sym, config = None, name = "unnamed"):
        self.config = config
        self.cup = Cup()
        self.sym = sym
        self.graph = tf.Graph()
        with self.graph.as_default():
            self.session = tf.Session()
            self.network = Network(self.session, config, name)
            self.network.restore_model()
            variables_names = [v.name for v in tf.trainable_variables()]
            values = self.session.run(variables_names)
            for k, v in zip(variables_names, values):
                print("Variable: ", k)
                print("Shape: ", v.shape)
                print(v)

    def restore_model(self):
        with self.graph.as_default():
            self.network.restore_model()

    def get_session(self):
        return self.session
        
    def get_sym(self):
        return self.sym

    def get_network(self):
        return self.network

    def make_move(self, board, sym, roll):
        # print(Board.pretty(board))
        legal_moves = Board.calculate_legal_states(board, sym, roll)
        moves_and_scores = [ (move, self.network.eval_state(np.array(move).reshape(1,26))) for move in legal_moves ]
        scores = [ x[1] for x in moves_and_scores ]
        best_move_pair = moves_and_scores[np.array(scores).argmax()]
        #print("Found the best state, being:", np.array(move_scores).argmax())
        return best_move_pair