def evaluate_ai(self, evaluated_ai):
start_time = time.time()
self.reset()
# The games are separated in half.
# The first part is the games for which the evaluated AI is black
# and the second one is those for which the evaluator is black.
states1 = [egn.GameState() for _ in range(self.num_games // 2)]
states2 = [
egn.GameState() for _ in range(self.num_games - len(states1))
]
# Whether it's the evaluator's turn in states1.
evaluator_plays1 = False
while states1 or states2:
player1 = self.evaluator_ai if evaluator_plays1 else evaluated_ai
player2 = evaluated_ai if evaluator_plays1 else self.evaluator_ai
if states1:
moves1 = player1.best_moves(states1)
self.update_states(states1, moves1, evaluator_plays1)
if states2:
moves2 = player2.best_moves(states2)
self.update_states(states2, moves2, not evaluator_plays1)
evaluator_plays1 = not evaluator_plays1
# Compute results
self.compute_results()
self.duration = time.time() - start_time
def ai_vs_ai_step(self, nb_moves, print_moves=False, print_outcome=False):
s = egn.GameState()
if print_moves:
print()
print(s.string_board())
print('\n')
for i in range(1, nb_moves+1):
instruction = input('')
if instruction == 's':
break
if instruction == 'c':
s.undo()
if print_moves: self.print_move(s, "cancel", i)
continue
best_move = self.AI.best_move()
if best_move == "resign":
if print_outcome: self.print_outcome(s, i)
break
s.update(best_move)
if print_moves: self.print_move(s, best_move, i)
def usi_engine(self, usi_engine_name):
s = egn.GameState()
while True:
# Catch the command sent by the GUI.
usi_command = input()
# The engine is being registered.
if usi_command == "usi":
print("id name", usi_engine_name)
print("usiok")
elif usi_command == "isready":
print("readyok")
# Save the opponent's last move and update the current game state.
elif re.search("position startpos moves", usi_command):
last_move = usi_command.split()[-1]
s.update(last_move)
# Make a move.
elif re.search("go", usi_command):
best_move = self.AI.best_move()
s.update(best_move)
print("bestmove", best_move)
elif usi_command == "quit":
break
def ai_vs_player(self):
s = egn.GameState()
print()
player_side = input("Select your side (b or w) : ")
print()
print("Initial board position :")
print(s.string_board())
print('\n')
i = 1
while True:
if s.playing_side == player_side:
move = input(f"Move number {i} by {s.playing_side} : ")
s.update(move)
else:
move = self.AI.best_move()
s.update(move)
print(f"Move number {i} by {s.playing_side} : {move}")
if move == "quit":
break
elif move == "resign":
print(f"{s.playing_side} resigns")
break
print("Board after move :")
print(s.string_board())
print()
i += 1
def ai_vs_ai(self, max_moves, print_moves=False, print_outcome=False):
s = egn.GameState()
if print_moves:
print()
print(s.string_board())
print('\n')
for i in range(1, max_moves + 1):
best_move = self.AI.best_move(s)
if best_move == "resign":
if print_outcome: self.print_outcome(s, i)
break
s.update(best_move)
if print_moves: self.print_move(s, best_move, i)
def player_vs_player(self):
s = egn.GameState()
print()
print(s.string_board())
print('\n')
i = 1
while True:
move = input(f"Move number {i} by {s.playing_side} : ")
if move == "resign":
print(f"{s.playing_side} resigns")
break
elif move == 'c':
s.undo()
else:
s.update(move)
print("Board after move :")
print(s.string_board())
print()
i += 1