def __init__(self, inputs, width, height, piece_list):
self.display = GuiDisplay(width,
height,
title='Intro to AI -- 67842 -- Ex1')
self.inputs = inputs
self.piece_list = piece_list
self.num_players = len(inputs)
self.board_w = width
self.board_h = height
self.turn_num = 0
self.passed = [False] * self.num_players
self.score = [0] * self.num_players
self.board = Board(self.board_w, self.board_h, self.num_players,
self.piece_list)
# Set up initial corners for each player
if self.num_players > 1:
self.board.connected[1, 0, self.board_w - 1] = True
if self.num_players > 2:
self.board.connected[2, self.board_h - 1, 0] = True
if self.num_players > 3:
self.board.connected[3, self.board_h - 1,
self.board_h - 1] = True
def play_approximate_search(problem):
back_trace = problem.solve()
display = GuiDisplay(problem.board.board_w, problem.board.board_h, title='Intro to AI -- 67842 -- Ex1')
board = problem.get_start_state()
for action in back_trace:
board.add_move(0, action)
display.draw_board(board, dots=problem.targets)
print("Expanded nodes: %d, score: %d" % (problem.expanded, board.score(0)))
def play_simple_search(problem, search_func):
back_trace = search_func(problem)
display = GuiDisplay(problem.board.board_w, problem.board.board_h, title='Intro to AI -- 67842 -- Ex1')
board = problem.get_start_state()
if problem.__class__ == BlokusCornersProblem:
dots = [(board.board_h - 1, board.board_w - 1), (0, board.board_w - 1), (board.board_h - 1, 0)]
else:
try:
dots = problem.targets
except AttributeError:
dots = []
for action in back_trace:
board.add_move(0, action)
display.draw_board(board, dots=dots)
print("Expanded nodes: %d, score: %d" % (problem.expanded, board.score(0)))
class GameEngine(object):
"""
Game engine class stores the current game state and controls when to
get input/draw output
"""
def __init__(self, inputs, width, height, piece_list):
self.display = GuiDisplay(width,
height,
title='Intro to AI -- 67842 -- Ex1')
self.inputs = inputs
self.piece_list = piece_list
self.num_players = len(inputs)
self.board_w = width
self.board_h = height
self.turn_num = 0
self.passed = [False] * self.num_players
self.score = [0] * self.num_players
self.board = Board(self.board_w, self.board_h, self.num_players,
self.piece_list)
# Set up initial corners for each player
if self.num_players > 1:
self.board.connected[1, 0, self.board_w - 1] = True
if self.num_players > 2:
self.board.connected[2, self.board_h - 1, 0] = True
if self.num_players > 3:
self.board.connected[3, self.board_h - 1,
self.board_h - 1] = True
def play_turn(self):
"""
Play a single round of turns.
Check for empty moves from the inputs (signalling passes) and ask for
new moves if illegal moves are provided.
"""
self.turn_num += 1
# print "Starting turn %d" % self.turn_num
for p in range(self.num_players):
if self.passed[p]:
continue
self.display.draw_board(self.board)
while True:
move = self.inputs[p].get_move(p, self.board)
if move is None:
self.passed[p] = True
break
if not self.board.pieces[p, move.piece_index]:
print("Error: piece has already been used. Try again:")
continue
try:
self.score[p] += self.board.add_move(p, move)
self.board.pieces[p, move.piece_index] = False
break
except ValueError:
print("Error: move is illegal. Try again:")
def all_players_passed(self):
"""
Return True if all players have passed.
"""
for p in range(self.num_players):
if not self.passed[p]:
return False
return True
def _print_scores(self):
for p in range(self.num_players):
print("Player %d: %d pts" % (p + 1, self.score[p]))
def play_game(self):
if len(self.inputs) != 4:
print("Error: Need 4 players for a game. ")
sys.exit(1)
while not self.all_players_passed():
self.play_turn()
self._print_scores()
return self.score