-
Notifications
You must be signed in to change notification settings - Fork 4
/
Arena.py
169 lines (142 loc) · 6.1 KB
/
Arena.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
from __future__ import print_function
import numpy as np
from pytorch_classification.utils import Bar, AverageMeter
import time, datetime, os
from Debug import Debug
from checkers.CheckersLogic import Move
class Arena():
"""
An Arena class where any 2 agents can be pit against each other.
"""
def __init__(self, player1, player2, game, display=None):
"""
Input:
player 1,2: two functions that takes board as input, return action
game: Game object
display: a function that takes board as input and prints it (e.g.
display in othello/OthelloGame). Is necessary for verbose
mode.
see othello/OthelloPlayers.py for an example. See pit.py for pitting
human players/other baselines with each other.
"""
self.player1 = player1
self.player2 = player2
self.game = game
self.display = display
self.debug = Debug()
dt = datetime.datetime.now().strftime("%Y-%m-%d_%H-%M-%S")
self.folder = os.path.join("Debug", "Arena", dt+"_"+str(os.getpid()))
os.makedirs(self.folder)
self.print_boards = False
def playGame(self, verbose=False):
"""
Executes one episode of a game.
Returns:
either
winner: player who won the game (1 if player1, -1 if player2)
or
draw result returned from the game that is neither 1, -1, nor 0; currently this is 0.0001
"""
# reset player's state
self.player1.reset()
self.player2.reset()
players = [self.player2, None, self.player1]
curPlayer = 1
board = self.game.getInitBoard()
it = 0
lastMove = []
while self.game.getGameEnded(board, curPlayer)==0:
it+=1
#if verbose:
# assert(self.display)
# print("Turn ", str(it), "Player ", str(curPlayer))
# self.display(board)
canonicalBoard = self.game.getCanonicalForm(board, curPlayer)
if lastMove and not board.last_long_capture:
players[curPlayer+1].makeOpponentMove(lastMove)
del lastMove[:]
action = players[curPlayer+1].play(canonicalBoard)
valids = self.game.getValidMoves(canonicalBoard,1)
if valids[action]==0:
print(action)
canonicalBoard.display()
assert valids[action] >0, "Illegal move: "+str(Move.parse_action(action))
# board.legal_moves = canonicalBoard.legal_moves
#self.debug.print_legal_moves(board)
previousBoard = board
action = canonicalBoard.transform_action_for_board(action, board)
board, curPlayer = self.game.getNextState(board, curPlayer, action)
lastMove.append(board.executed_moves[-1])
# debug next state
board.id = previousBoard.id + "-?"
if board.halfMoves > 100:
print("info: board.id:", previousBoard.id, "=>", board.id, ", pieces:", board.count_pieces(), ", halfMoves:", board.halfMoves, ", no-progress:", board.noProgressCount)
if self.print_boards:
s = self.game.stringRepresentation(previousBoard)
s1 = self.game.stringRepresentation(board)
self.debug.print_to_file(board, s1, "Newly generated position, previous one: "+s)
#board.display()
#input("press enter to continue: ");
result = curPlayer * self.game.getGameEnded(board, curPlayer)
if verbose:
assert(self.display)
print("Game over: Turn ", str(it), "Result ", str(result))
self.display(board)
# print game record to a file
self.game.printGameRecord(board, curPlayer, self.folder)
return result
def playGames(self, num, verbose=False):
"""
Plays num games in which player1 starts num/2 games and player2 starts
num/2 games.
Returns:
oneWon: games won by player1
twoWon: games won by player2
draws: games won by nobody
"""
eps_time = AverageMeter()
bar = Bar('Arena.playGames', max=num)
end = time.time()
eps = 0
maxeps = int(num)
num = int(num/2)
oneWon = 0
twoWon = 0
draws = 0
for _ in range(num):
eps += 1
print("")
print("Episode ",eps)
gameResult = self.playGame(verbose=verbose)
if gameResult==1:
oneWon+=1
elif gameResult==-1:
twoWon+=1
else:
draws+=1
# bookkeeping + plot progress
eps_time.update(time.time() - end)
end = time.time()
bar.suffix = '({eps}/{maxeps}) Eps Time: {et:.3f}s | Total: {total:} | ETA: {eta:}'.format(eps=eps, maxeps=maxeps, et=eps_time.avg,
total=bar.elapsed_td, eta=bar.eta_td)
bar.next()
self.player1, self.player2 = self.player2, self.player1
for _ in range(num):
eps += 1
print("")
print("Episode ",eps)
gameResult = self.playGame(verbose=verbose)
if gameResult==-1:
oneWon+=1
elif gameResult==1:
twoWon+=1
else:
draws+=1
# bookkeeping + plot progress
eps_time.update(time.time() - end)
end = time.time()
bar.suffix = '({eps}/{maxeps}) Eps Time: {et:.3f}s | Total: {total:} | ETA: {eta:}'.format(eps=eps, maxeps=maxeps, et=eps_time.avg,
total=bar.elapsed_td, eta=bar.eta_td)
bar.next()
bar.finish()
return oneWon, twoWon, draws