def try_to_block_oppoent_immediate_win(self, color):
# xoooo.
# ooo.o
# oo.oo
result = []
EMPTY_POINT = where1d(self.board == EMPTY)
opponent = GoBoardUtil.opponent(color)
for point in EMPTY_POINT:
if self.check_in_line_with_empty(
point, 1, opponent, 5, False,
False) or self.check_in_line_with_empty(
point, self.NS, opponent, 5, False,
False) or self.check_in_line_with_empty(
point, self.NS + 1, opponent, 5, False,
False) or self.check_in_line_with_empty(
point, self.NS - 1, opponent, 5, False, False):
# print(str(color) + " block with " + str(point))
result.append(point)
return result
def try_to_play_immediate_win(self, color):
# xxxx.
# xxx.x
# xx.xx
# xxx.xxx
result = []
EMPTY_POINT = where1d(self.board == EMPTY)
for point in EMPTY_POINT:
if self.check_in_line_with_empty(
point, 1, color, 5, False,
False) or self.check_in_line_with_empty(
point, self.NS, color, 5, False,
False) or self.check_in_line_with_empty(
point, self.NS + 1, color, 5, False,
False) or self.check_in_line_with_empty(
point, self.NS - 1, color, 5, False, False):
# print(str(color) + " immediate win " + str(point))
result.append(point)
return result
def open_four(self, color):
# if you have a move that creates an open four position of type .XXXX., then play it.
# Examples of this scenario are: .X.XX. and .XXX..
found_points = []
empty_pts = where1d(self.board == 0)
for point in empty_pts:
if self.straight_check(point, 1, color, 4, False, True): #f (1)
found_points.append(point)
elif self.straight_check(point, self.NS, color, 4, False, True):
found_points.append(point)
elif self.straight_check(point, self.NS + 1, color, 4, False,
True):
found_points.append(point)
elif self.straight_check(point, self.NS - 1, color, 4, False,
True):
found_points.append(point)
return found_points
def _detect_and_process_capture(self, nb_point):
"""
Check whether opponent block on nb_point is captured.
If yes, remove the stones.
Returns the stone if only a single stone was captured,
and returns None otherwise.
This result is used in play_move to check for possible ko
"""
if self._fast_liberty_check(nb_point):
return None
opp_block = self._block_of(nb_point)
if self._has_liberty(opp_block):
return None
captures = list(where1d(opp_block))
self.board[captures] = EMPTY
self.liberty_of[captures] = NULLPOINT
single_capture = None
if len(captures) == 1:
single_capture = nb_point
return single_capture
def block_open_four(self, color):
EMPTY_POINT = where1d(self.board == EMPTY)
patterns = {
'.x.xx.': 0,
'.xx.x.': 0,
'?.xxx..': 1,
'..xxx.?': 0,
'-.xxx.-': 1
}
for point in EMPTY_POINT:
for pattern in patterns.keys():
for shift in [
1, -1, self.NS, -self.NS, self.NS + 1, -self.NS - 1,
self.NS - 1, -self.NS + 1
]:
isFound, result = self.check_pattern(
pattern, point, color, shift, patterns[pattern])
if isFound:
return result
return []
def try_play_intersection(self, color):
# .
# .oo..
# o
# o
# .
EMPTY_POINT = where1d(self.board == EMPTY)
for point in EMPTY_POINT:
count = 0
if self.check_in_line_with_empty(point, 1, color, 3, False, True):
count += 1
if self.check_in_line_with_empty(point, self.NS, color, 3, False,
True):
count += 1
if self.check_in_line_with_empty(point, self.NS + 1, color, 3,
False, True):
count += 1
if self.check_in_line_with_empty(point, self.NS - 1, color, 3,
False, True):
count += 1
if count >= 2:
# print(str(color) + " win intersection " + str(point))
return point
return False
def get_empty_points(self):
"""
Return:
The empty points on the board
"""
return where1d(self.board == EMPTY)
def get_color_points(self, color):
"""
Return:
All points of color on the board
"""
return where1d(self.board == color)
def get_color_points(self, color):
return where1d(self.board == color)
def winDetection(self):
myWins = []
theirWins = []
my2mWins = []
their2mWins = []
size = self.size
startPoint = size + 2
points = where1d(self.board == self.current_player)
#print("Horizontal")
# horizontal checks
for rowStart in range(startPoint, startPoint + size * size + 1,
size + 1):
winStr = ""
for point in range(rowStart, rowStart + size):
winStr += self.getPointRep(self.current_player, point)
# check 2-move wins
if len(winStr) == 6:
self.checkThreat(threatDict, winStr, my2mWins, their2mWins,
point, 1)
# reduce the string to a 5-long string
winStr = winStr[1:]
# check for 1-move wins
if len(winStr) == 5:
if self.checkWin(winDict, winStr, myWins, theirWins, point,
1):
# return early if we found a win, because we can just play that
return myWins, [], [], []
#print("Vertical")
# vertical checks
for colStart in range(startPoint, startPoint + size):
winStr = ""
for point in range(colStart,
colStart + (size + 1) * (size - 1) + 1,
size + 1):
winStr += self.getPointRep(self.current_player, point)
if len(winStr) == 6:
self.checkThreat(threatDict, winStr, my2mWins, their2mWins,
point, size + 1)
winStr = winStr[1:]
if len(winStr) == 5:
if self.checkWin(winDict, winStr, myWins, theirWins, point,
size + 1):
# return early if we found a win, because we can just play that
return myWins, [], [], []
# diagonal I
#print("Diag I")
exists = size - 5
checkRight = startPoint + 1
checkDown = startPoint + size + 1
dIStarts = [startPoint]
for i in range(0, exists):
dIStarts.append(checkDown)
dIStarts.append(checkRight)
checkRight += 1
checkDown += size + 1
dSize = size
reduceDSize = True
for start in dIStarts:
point = start
winStr = ""
for i in range(0, dSize):
winStr += self.getPointRep(self.current_player, point)
if len(winStr) == 6:
self.checkThreat(threatDict, winStr, my2mWins, their2mWins,
point, size + 2)
winStr = winStr[1:]
if len(winStr) == 5:
#print(winStr)
if self.checkWin(winDict, winStr, myWins, theirWins, point,
size + 2):
# return early if we found a win, because we can just play that
return myWins, [], [], []
point += size + 2
if reduceDSize:
dSize -= 1
reduceDSize = not reduceDSize
# diagonal II
#print("diag II")
checkLeft = startPoint + (size - 1) - 1
checkDown = startPoint + (size - 1) + (size + 1)
dIIStarts = [startPoint + size - 1]
exists = size - 5
for i in range(0, exists):
dIIStarts.append(checkLeft)
dIIStarts.append(checkDown)
checkLeft -= 1
checkDown += size + 1
dSize = size
reduceDSize = True
for start in dIIStarts:
point = start
winStr = ""
for i in range(0, dSize):
winStr += self.getPointRep(self.current_player, point)
if len(winStr) == 6:
self.checkThreat(threatDict, winStr, my2mWins, their2mWins,
point, size)
winStr = winStr[1:]
if len(winStr) == 5:
#print(winStr)
if self.checkWin(winDict, winStr, myWins, theirWins, point,
size):
# return early if we found a win, because we can just play that
return myWins, [], [], []
point += size
if reduceDSize:
dSize -= 1
reduceDSize = not reduceDSize
return myWins, theirWins, my2mWins, their2mWins
def BlockOpenFour(self):
color = WHITE + BLACK - self.current_player
moves = where1d(self.board == EMPTY)
move_list = []
for i in moves:
rowc, rows, rd, rs1, rs2 = self.checkrow2(i, color)
colc, cols, cd, cs1, cs2 = self.checkcol2(i, color)
d1c, d1s, d1, ds1, ds2 = self.checkd12(i, color)
d2c, d2s, d2, d21, d22 = self.checkd22(i, color)
if rowc == 4 and rows == 1:
if rd == 1 and self.board[i + 5] == 0:
move_list.append(i + 5)
move_list.append(i)
elif rd == -1 and self.board[i - 5] == 0:
move_list.append(i + 5)
move_list.append(i)
if colc == 4 and cols == 1:
if cd == 1:
if self.board[i + 5 * self.NS] == 0:
move_list.append(i + 5 * self.NS)
move_list.append(i)
elif cd == -1:
if self.board[i - 5 * self.NS] == 0:
move_list.append(i - 5 * self.NS)
move_list.append(i)
if d1c == 4 and d1s == 1:
if d1 == 1:
if self.board[i + 5 * (self.NS + 1)] == 0:
move_list.append(i + 5 * (self.NS + 1))
move_list.append(i)
elif d1 == -1:
if self.board[i - 5 * (self.NS + 1)] == 0:
move_list.append(i - 5 * (self.NS + 1))
move_list.append(i)
if d2c == 4 and d2s == 1:
if d2 == 1:
if self.board[i + 5 * (self.NS - 1)] == 0:
move_list.append(i + 5 * (self.NS - 1))
move_list.append(i)
elif d2 == -1:
if self.board[i - 5 * (self.NS - 1)] == 0:
move_list.append(i - 5 * (self.NS - 1))
move_list.append(i)
if rowc == 4 and rows == 2:
move_list.append(i)
if colc == 4 and cols == 2:
move_list.append(i)
if d1c == 4 and d1s == 2:
move_list.append(i)
if d2c == 4 and d2s == 2:
move_list.append(i)
if rowc == 4 and rows == 2 and rd == 0:
move_list.append(rs1)
move_list.append(rs2)
if colc == 4 and cols == 2 and cd == 0:
move_list.append(cs1)
move_list.append(cs2)
if d1c == 4 and d1s == 2 and d1 == 0:
move_list.append(ds1)
move_list.append(ds2)
if d2c == 4 and d2s == 2 and d2 == 0:
move_list.append(d21)
move_list.append(d22)
move_list = list(set(move_list))
return move_list
def count_colors(goboard):
count = []
for color in range(BORDER + 1):
points_in_color = where1d(goboard.board == color)
count.append(len(points_in_color))
return count
def gogui_rules_final_result_cmd(
self, args): #----------Done----------------------
""" Implement this function for Assignment 1
This command checks if the game is over
and outputs one of the following game results: """
result = "unknown"
colour = self.board.current_player
if colour == 1:
colour = 'b'
else:
colour = 'w'
#print("#############:", colour)
board_color = colour.lower()
color = color_to_int(board_color)
moves = GoBoardUtil.generate_legal_moves(self.board,
self.board.current_player)
gtp_moves = []
for move in moves:
# check if a PASS
if move == "PASS":
continue
coords = point_to_coord(move, self.board.size)
if self.board.board[move] != 0:
continue
board_copy = self.board.copy()
opp_color = GoBoardUtil.opponent(color)
board_copy.board[move] = color
capture = False
single_captures = []
neighbors = board_copy._neighbors(move)
No = False
for nb in neighbors:
if board_copy.board[nb] == opp_color:
single_capture = None
opp_block = board_copy._block_of(nb)
if not board_copy._has_liberty(opp_block):
captures = list(where1d(opp_block))
board_copy.board[captures] = 0
if len(captures) == 1:
single_capture = nb
if len(captures) >= 1:
No = True
break
if single_capture != None:
# use single captures to detect suicide
single_captures.append(single_capture)
if not No:
if single_captures != []:
continue
block = board_copy._block_of(move)
if not board_copy._has_liberty(block): # undo suicide move
continue
gtp_moves.append(format_point(coords))
if not gtp_moves:
result = GoBoardUtil.opponent(color)
if result == 1:
result = 'black'
elif result == 2:
result = 'white'
self.respond(result)
def play_cmd(self, args): #-----------Done--------------------
""" Modify this function for Assignment 1
play a move args[1] for given color args[0] in {'b','w'}
Check in following order:
wrong color
wrong coordinate
occupied
capture
suicide
"""
try:
board_color = args[0].lower()
board_move = args[1]
color = color_to_int(board_color)
#wrong color
self.board.current_player
if self.board.current_player != color:
#figure out a way to implement this elegantly
self.respond("illegal move: \"{}\" wrong color".format(
" ".join(args)))
return
#Check if move is "PASS"
if board_move.lower() == "pass":
#Pass is not allowd so generate Illegal move message
self.respond("illegal move: \"{}\" wrong coordinate".format(
" ".join(args)))
return
else:
coord = move_to_coord(board_move, self.board.size)
if coord:
move = coord_to_point(coord[0], coord[1], self.board.size)
# check for spot occupation, ex. empty
if self.board.board[move] != 0:
self.respond("illegal move: \"{}\" occupied".format(
" ".join(args)))
return
board_copy = self.board.copy()
#test for captures, then suicide
# General case: deal with captures, suicide, and next ko point
opp_color = GoBoardUtil.opponent(color)
board_copy.board[move] = color
capture = False
single_captures = []
neighbors = board_copy._neighbors(move)
for nb in neighbors:
if board_copy.board[nb] == opp_color:
single_capture = None
opp_block = board_copy._block_of(nb)
if not board_copy._has_liberty(opp_block):
captures = list(where1d(opp_block))
board_copy.board[captures] = 0
if len(captures) == 1:
single_capture = nb
if len(captures) >= 1:
self.respond("illegal move: \"{}\" capture".format(
" ".join(args)))
return
if single_capture != None:
# use single captures to detect suicide
single_captures.append(single_capture)
if single_captures != []:
self.respond("illegal move: \"{}\" capture".format(
" ".join(args)))
return
block = board_copy._block_of(move)
if not board_copy._has_liberty(block): # undo suicide move
self.respond("illegal move: \"{}\" suicide".format(
" ".join(args)))
return
# try to playe the move
if not self.board.play_move(move, color):
#false, probably the wrong move
self.respond("Illegal move: {}".format(board_move))
return
self.respond()
except Exception as e:
# return an error message
self.respond('Error: {}'.format(str(e)))
self.respond("illegal Move: \"{}\" wrong coordinate ex".format(
" ".join(args)))
def valid_point(self):
a = where1d(self.board == BLACK)
b = where1d(self.board == WHITE)
c = where1d(self.board == EMPTY)
return np.concatenate([a, b, c])
def order_the_point(self, color):
white_points = where1d(self.board == WHITE)
black_points = where1d(self.board == BLACK)
final_final_list = []
final_4 = []
final_3 = []
final_2 = []
final_1 = []
if color == 2:
for point in white_points:
# check 4 block first:
# here we need 2 lists to track the duplicate elements
if self.check_n(point, 4) != False:
list_temp = self.check_n(point, 4)
list_4 = [x for x in list_temp if x not in final_4]
# for all points
final_4 = final_4 + list_4
for point in white_points:
if self.check_n(point, 3) != False:
list_temp = self.check_n(point, 3)
# remove the duplication
list_3 = [x for x in list_temp if x not in final_3]
# combine these 2
final_3 = final_3 + list_3
final_3 = [x for x in final_3 if x not in final_4]
final_final_list = final_4 + final_3
for point in white_points:
if self.check_n(point, 2) != False:
list_temp = self.check_n(point, 2)
# remove the duplication
list_2 = [x for x in list_temp if x not in final_2]
final_2 = final_2 + list_2
final_2 = [x for x in final_2 if x not in final_final_list]
final_final_list = final_final_list + final_2
for point in white_points:
if self.check_n(point, 1) != False:
list_temp = self.check_n(point, 1)
# remove the duplication
list_1 = [x for x in list_temp if x not in final_1]
final_1 = final_1 + list_1
final_1 = [x for x in final_1 if x not in final_final_list]
final_final_list = final_final_list + final_1
list_temp = self.generate_legal_moves(color)
total_list = [x for x in list_temp if x not in final_final_list]
final_final_list = final_final_list + total_list
else:
for point in black_points:
# check 4 block first:
# here we need 2 lists to track the duplicate elements
if self.check_n(point, 4) != False:
list_temp = self.check_n(point, 4)
list_4 = [x for x in list_temp if x not in final_4]
# for all points
final_4 = final_4 + list_4
for point in black_points:
if self.check_n(point, 3) != False:
list_temp = self.check_n(point, 3)
# remove the duplication
list_3 = [x for x in list_temp if x not in final_3]
# combine these 2
final_3 = final_3 + list_3
final_3 = [x for x in final_3 if x not in final_4]
final_final_list = final_4 + final_3
for point in black_points:
if self.check_n(point, 2) != False:
list_temp = self.check_n(point, 2)
# remove the duplication
list_2 = [x for x in list_temp if x not in final_2]
final_2 = final_2 + list_2
final_2 = [x for x in final_2 if x not in final_final_list]
final_final_list = final_final_list + final_2
for point in black_points:
if self.check_n(point, 1) != False:
list_temp = self.check_n(point, 1)
# remove the duplication
list_1 = [x for x in list_temp if x not in final_1]
final_1 = final_1 + list_1
final_1 = [x for x in final_1 if x not in final_final_list]
final_final_list = final_final_list + final_1
list_temp = self.generate_legal_moves(color)
total_list = [x for x in list_temp if x not in final_final_list]
final_final_list = final_final_list + total_list
return final_final_list
def scan_board(self):
myWins = []
theirWins = []
my2mWins = []
their2mWins = []
size = self.size
startPoint = size + 2
points = where1d(self.board == self.current_player)
# Horizontal Checks
for rowStart in range(startPoint, startPoint + size * size + 1,
size + 1):
winStr = "#" # start with border to get track specials
for point in range(rowStart, rowStart + size):
winStr += self.getPointRep(self.current_player, point)
if len(winStr) >= 7:
#print(winStr[-7:])
if winStr[-7:] in specialBlockFourDict:
adj = specialBlockFourDict[winStr[-7:]]
their2mWins.append(point - adj)
# check 2-move wins
if len(winStr) >= 6:
self.checkThreat(threatDict, winStr[-6:], my2mWins,
their2mWins, point, 1)
# check for 1-move wins
if len(winStr) >= 5:
self.checkWin(winDict, winStr[-5:], myWins, theirWins,
point, 1)
# account for final border
winStr += "#"
if len(winStr) >= 7:
if winStr[-7:] in specialBlockFourDict:
adj = specialBlockFourDict[winStr[-7:]] - 1
their2mWins.append(point - adj)
# Vertical Checks
for colStart in range(startPoint, startPoint + size):
winStr = "#"
for point in range(colStart,
colStart + (size + 1) * (size - 1) + (size + 2),
size + 1):
winStr += self.getPointRep(self.current_player, point)
if len(winStr) >= 7:
#print(winStr[-7:])
if winStr[-7:] in specialBlockFourDict:
i = specialBlockFourDict[winStr[-7:]]
adj = i * (size + 1)
their2mWins.append(point - adj)
# check 2-move wins
if len(winStr) >= 6:
self.checkThreat(threatDict, winStr[-6:], my2mWins,
their2mWins, point, size + 1)
# check for 1-move wins
if len(winStr) >= 5:
self.checkWin(winDict, winStr[-5:], myWins, theirWins,
point, size + 1)
# diagonal I
exists = size - 5
checkRight = startPoint + 1
checkDown = startPoint + size + 1
dIStarts = [startPoint]
for i in range(0, exists):
dIStarts.append(checkDown)
dIStarts.append(checkRight)
checkRight += 1
checkDown += size + 1
dSize = size
reduceDSize = True
for start in dIStarts:
point = start
winStr = "#"
for i in range(0, dSize):
winStr += self.getPointRep(self.current_player, point)
# check 2-move wins
if len(winStr) >= 7:
if winStr[-7:] in specialBlockFourDict:
i = specialBlockFourDict[winStr[-7:]]
adj = i * (size + 2)
their2mWins.append(point - adj)
if len(winStr) >= 6:
self.checkThreat(threatDict, winStr[-6:], my2mWins,
their2mWins, point, size + 2)
# check for 1-move wins
if len(winStr) >= 5:
self.checkWin(winDict, winStr[-5:], myWins, theirWins,
point, size + 2)
point += size + 2
winStr += "#"
if len(winStr) >= 7:
if winStr[-7:] in specialBlockFourDict:
i = specialBlockFourDict[winStr[-7:]]
adj = i * (size + 2)
their2mWins.append(point - adj)
if reduceDSize:
dSize -= 1
reduceDSize = not reduceDSize
# diagonal II
checkLeft = startPoint + (size - 1) - 1
checkDown = startPoint + (size - 1) + (size + 1)
dIIStarts = [startPoint + size - 1]
exists = size - 5
for i in range(0, exists):
dIIStarts.append(checkLeft)
dIIStarts.append(checkDown)
checkLeft -= 1
checkDown += size + 1
dSize = size
reduceDSize = True
for start in dIIStarts:
point = start
winStr = "#"
for i in range(0, dSize):
winStr += self.getPointRep(self.current_player, point)
# check 2-move wins
if len(winStr) >= 7:
if winStr[-7:] in specialBlockFourDict:
i = specialBlockFourDict[winStr[-7:]]
adj = i * (size + 2)
their2mWins.append(point - adj)
# check 2-move wins
if len(winStr) >= 6:
self.checkThreat(threatDict, winStr[-6:], my2mWins,
their2mWins, point, size)
# check for 1-move wins
if len(winStr) >= 5:
self.checkWin(winDict, winStr[-5:], myWins, theirWins,
point, size)
point += size
winStr += "#"
if len(winStr) >= 7:
if winStr[-7:] in specialBlockFourDict:
i = specialBlockFourDict[winStr[-7:]]
adj = i * (size)
their2mWins.append(point - adj)
if reduceDSize:
dSize -= 1
reduceDSize = not reduceDSize
myWins = list(set(myWins))
theirWins = list(set(theirWins))
my2mWins = list(set(my2mWins))
their2mWins = list(set(their2mWins))
return myWins, theirWins, my2mWins, their2mWins
def genmove_cmd(self, args): #------------Done---------------------
""" Modify this function for Assignment 1 """
""" generate a move for color args[0] in {'b','w'} """
board_color = args[0].lower()
color = color_to_int(board_color)
move = self.go_engine.get_move(self.board, color)
move_coord = point_to_coord(move, self.board.size)
move_as_string = format_point(move_coord)
# our code
colour = 1
if board_color == 'w':
colour == 2
elif board_color == 'b':
colour == 1
moves = GoBoardUtil.generate_legal_moves(self.board, colour)
gtp_moves = []
for Move in moves:
# check if a PASS
if Move == "PASS":
continue
coords = point_to_coord(Move, self.board.size)
if self.board.board[Move] != 0:
continue
board_copy = self.board.copy()
opp_color = GoBoardUtil.opponent(color)
board_copy.board[Move] = color
capture = False
single_captures = []
neighbors = board_copy._neighbors(move)
No = False
for nb in neighbors:
if board_copy.board[nb] == opp_color:
single_capture = None
opp_block = board_copy._block_of(nb)
if not board_copy._has_liberty(opp_block):
captures = list(where1d(opp_block))
board_copy.board[captures] = 0
if len(captures) == 1:
single_capture = nb
if len(captures) >= 1:
No = True
break
if single_capture != None:
# use single captures to detect suicide
single_captures.append(single_capture)
if not No:
if single_captures != []:
continue
block = board_copy._block_of(Move)
if not board_copy._has_liberty(block): # undo suicide move
continue
gtp_moves.append(format_point(coords))
print(*gtp_moves)
if not gtp_moves:
self.respond("resign")
else:
if format_point(move_coord) in gtp_moves:
self.board.play_move(move, color)
self.respond(move_as_string)
else:
self.respond("Illegal move: {}".format(move_as_string))
