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team8.py
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team8.py
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# Team 8, D15C0
# Arjun Nemani 20161027
# Mashrukh Islam 20161137
import copy
class Team8():
def __init__ (self):
self.maxDepth = 4
self.winPos = [
[0,1,2,3],
[4,5,6,7],
[8,9,10,11],
[12,13,14,15],
[0,4,8,12],
[1,5,9,13],
[2,6,10,14],
[3,7,11,15],
[6,9,11,14],
[5,8,10,13],
[2,5,7,10],
[1,4,6,9]
]
self.scoreTable = {
'edge': 400,
'corner': 600,
'center': 300,
'2inrow': 13,
'block2': 40,
'3inrow': 49,
'block3': 99,
'win': 1000,
}
self.inf = 100000000
self.goodMoves = []
self.lolPos = []
def getBlockCord(self, old_move):
bx = old_move[0] / 4
cx = old_move[0] % 4
by = old_move[1] / 4
cy = old_move[1] % 4
return (bx,cx,by,cy)
def Hfunc(self, board, flag, old_move):
value = 0
glaf = 'x' if flag == 'o' else 'o'
blockCord = self.getBlockCord(old_move)
self.lolPos = []
bs = board.board_status
for pos in self.winPos:
a = [ pos[0] / 4 + blockCord[2] * 4, pos[0] % 4 + blockCord[0] * 4 ]
b = [ pos[1] / 4 + blockCord[2] * 4, pos[1] % 4 + blockCord[0] * 4 ]
c = [ pos[2] / 4 + blockCord[2] * 4, pos[2] % 4 + blockCord[0] * 4 ]
d = [ pos[3] / 4 + blockCord[2] * 4, pos[3] % 4 + blockCord[0] * 4 ]
self.lolPos.append((a,b,c,d))
# evaluate win positions
for (a,b,c,d) in self.lolPos:
p = bs[a[0]][a[1]]
q = bs[b[0]][a[1]]
r = bs[c[0]][c[1]]
s = bs[d[0]][d[1]]
if bs[a[0]][a[1]] == flag and q == flag and r == flag and s == flag:
value += self.scoreTable["win"]
elif bs[a[0]][a[1]] == glaf and q == glaf and r == glaf and s == glaf:
value -= self.scoreTable["win"]
# evaluate three in rows
for (a,b,c,d) in self.lolPos:
p = bs[a[0]][a[1]]
q = bs[b[0]][a[1]]
r = bs[c[0]][c[1]]
s = bs[d[0]][d[1]]
# 3 of self in row, one blank
if p == flag and q == flag and r == flag and s == '-':
value += self.scoreTable["3inrow"]
elif p == flag and q == flag and r == '-' and s == flag:
value += self.scoreTable["3inrow"]
elif p == flag and q == '-' and r == flag and s == flag:
value += self.scoreTable["3inrow"]
elif p == '-' and q == flag and r == flag and s == flag:
value += self.scoreTable["3inrow"]
# 3 of self in row, one blocked by opponent
elif p == flag and q == flag and r == flag and s == glaf:
value -= self.scoreTable["block3"]
elif p == flag and q == flag and r == glaf and s == flag:
value -= self.scoreTable["block3"]
elif p == flag and q == glaf and r == flag and s == flag:
value -= self.scoreTable["block3"]
elif p == glaf and q == flag and r == flag and s == flag:
value -= self.scoreTable["block3"]
# 3 of opponent in row, one blank
elif p == glaf and q == glaf and r == glaf and s == '-':
value -= self.scoreTable["3inrow"]
elif p == glaf and q == glaf and r == '-' and s == glaf:
value -= self.scoreTable["3inrow"]
elif p == glaf and q == '-' and r == glaf and s == glaf:
value -= self.scoreTable["3inrow"]
elif p == '-' and q == glaf and r == glaf and s == glaf:
value -= self.scoreTable["3inrow"]
# 3 of opponent in row, one blocked by self
elif p == glaf and q == glaf and r == glaf and s == flag:
value += self.scoreTable["block3"]
elif p == glaf and q == glaf and r == flag and s == glaf:
value += self.scoreTable["block3"]
elif p == glaf and q == flag and r == glaf and s == glaf:
value += self.scoreTable["block3"]
elif p == flag and q == glaf and r == glaf and s == glaf:
value += self.scoreTable["block3"]
# evaluate two in rows
for (a,b,c,d) in self.lolPos:
p = bs[a[0]][a[1]]
q = bs[b[0]][a[1]]
r = bs[c[0]][c[1]]
s = bs[d[0]][d[1]]
# 2 of self in row, 2 blank
if p == flag and q == flag and r == '-' and s == '-':
value += self.scoreTable["2inrow"]
elif p == flag and q == '-' and r == '-' and s == flag:
value += self.scoreTable["2inrow"]
elif p == '-' and q == '-' and r == flag and s == flag:
value += self.scoreTable["2inrow"]
elif p == '-' and q == flag and r == '-' and s == flag:
value += self.scoreTable["2inrow"]
elif p == '-' and q == flag and r == flag and s == '-':
value += self.scoreTable["2inrow"]
elif p == flag and q == '-' and r == flag and s == '-':
value += self.scoreTable["2inrow"]
# 2 of self in row, 1 blocked by opponent, 1 blank
if p == flag and q == flag and r == glaf and s == '-':
value -= self.scoreTable["block2"]
elif p == flag and q == glaf and r == '-' and s == flag:
value -= self.scoreTable["block2"]
elif p == glaf and q == '-' and r == flag and s == flag:
value -= self.scoreTable["block2"]
elif p == glaf and q == flag and r == '-' and s == flag:
value -= self.scoreTable["block2"]
elif p == glaf and q == flag and r == flag and s == '-':
value -= self.scoreTable["block2"]
elif p == flag and q == glaf and r == flag and s == '-':
value -= self.scoreTable["block2"]
elif p == flag and q == flag and r == '-' and s == glaf:
value -= self.scoreTable["block2"]
elif p == flag and q == '-' and r == glaf and s == flag:
value -= self.scoreTable["block2"]
elif p == '-' and q == glaf and r == flag and s == flag:
value -= self.scoreTable["block2"]
elif p == '-' and q == flag and r == glaf and s == flag:
value -= self.scoreTable["block2"]
elif p == '-' and q == flag and r == flag and s == glaf:
value -= self.scoreTable["block2"]
elif p == flag and q == '-' and r == flag and s == glaf:
value -= self.scoreTable["block2"]
# 2 of opponent in row, 2 blank
if p == glaf and q == glaf and r == '-' and s == '-':
value -= self.scoreTable["2inrow"]
elif p == glaf and q == '-' and r == '-' and s == glaf:
value -= self.scoreTable["2inrow"]
elif p == '-' and q == '-' and r == glaf and s == glaf:
value -= self.scoreTable["2inrow"]
elif p == '-' and q == glaf and r == '-' and s == glaf:
value -= self.scoreTable["2inrow"]
elif p == '-' and q == glaf and r == glaf and s == '-':
value -= self.scoreTable["2inrow"]
elif p == glaf and q == '-' and r == glaf and s == '-':
value -= self.scoreTable["2inrow"]
# 2 of opponent in row, 1 blocked by self, 1 blank
if p == glaf and q == glaf and r == flag and s == '-':
value += self.scoreTable["block2"]
elif p == glaf and q == flag and r == '-' and s == glaf:
value += self.scoreTable["block2"]
elif p == flag and q == '-' and r == glaf and s == glaf:
value += self.scoreTable["block2"]
elif p == flag and q == glaf and r == '-' and s == glaf:
value += self.scoreTable["block2"]
elif p == flag and q == glaf and r == glaf and s == '-':
value += self.scoreTable["block2"]
elif p == glaf and q == flag and r == glaf and s == '-':
value += self.scoreTable["block2"]
elif p == glaf and q == glaf and r == '-' and s == flag:
value += self.scoreTable["block2"]
elif p == glaf and q == '-' and r == flag and s == glaf:
value += self.scoreTable["block2"]
elif p == '-' and q == flag and r == glaf and s == glaf:
value += self.scoreTable["block2"]
elif p == '-' and q == glaf and r == flag and s == glaf:
value += self.scoreTable["block2"]
elif p == '-' and q == glaf and r == glaf and s == flag:
value += self.scoreTable["block2"]
elif p == glaf and q == '-' and r == glaf and s == flag:
value += self.scoreTable["block2"]
k = (blockCord[1], blockCord[0])
if k in [(0,0), (3,0), (0,3), (3,3)]:
value += self.scoreTable["corner"]
# self edge
elif k in [(1,0),(2,0),(0,1),(0,2),(1,3),(2,3),(3,1),(3,2)]:
value += self.scoreTable["edge"]
# self center
elif k in [(1,1),(1,2),(2,1),(2,2)]:
value += self.scoreTable["center"]
return value
def MiniMax(self, board, alpha, beta, isMaxPlayer, old_move, depth, flag):
availableMoves = board.find_valid_move_cells(old_move)
if len(availableMoves) >= 300:
print "free move -- "+str(len(availableMoves))
tempBoard = copy.deepcopy(board)
if depth == 0:
return self.Hfunc(tempBoard, flag, old_move)
else:
if isMaxPlayer:
bestVal = -self.inf
for move in availableMoves:
tempBoard.update(old_move, move, flag)
nexFlag = 'x' if flag == 'o' else 'o'
value = self.MiniMax(tempBoard, alpha, beta, False, move, depth-1, nexFlag)
if bestVal <= value:
bestVal = value
if(depth == self.maxDepth):
self.goodMoves.append(move)
alpha = max(bestVal, alpha)
if beta <= alpha:
break
return bestVal
else:
bestVal = self.inf
for move in availableMoves:
tempBoard.update(old_move, move, flag)
nexFlag = 'x' if flag == 'o' else 'o'
value = self.MiniMax(tempBoard, alpha, beta, True, move, depth-1, nexFlag)
if bestVal > value:
bestVal = value
beta = min(bestVal, beta)
if beta <= alpha:
break
return bestVal
def move(self, board, old_move, flag):
if old_move == (-1,-1):
return (5,11)
self.goodMoves = []
self.MiniMax(board, -self.inf, self.inf, True, old_move, self.maxDepth, flag)
leng = len(self.goodMoves)
return self.goodMoves[leng-1]