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featurecomputation.py
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from numpy import *
import time
def other(player):
if player == 1:
return 2
elif player == 2:
return 1
else:
print("player not recognised in other()")
def numpieces(board, player, row = 'all'):
row = relativerow(board, player, row)
if row == 'all':
return sum(sum(board == player))
else:
return sum(sum(board[row] == player))
def numpieces2(board, player):
return (board == player) * 1
def relativerow(board, player, row):
bsize = int(sqrt(size(board)))
if row == 'all':
return 'all'
elif player == 2:
return bsize - (1 + row)
return row
def nummoves(board, player, row = 'all'): # when row = 7 always returns 0
row = relativerow(board, player, row)
bsize = int(sqrt(size(board)))
moves = 0
essentialboard = (board == player) * 1
enemyessentialboard = (board == other(player) * 1)
#essentialboard[essentialboard == 0] = 2
forewardmoves = zeros((bsize, bsize))
forewardrightmoves = zeros((bsize, bsize))
forewardleftmoves = zeros((bsize, bsize))
if player == 1: # player 1 moves down board
forewardmoves[1:bsize] = essentialboard[1:bsize] + essentialboard[0:bsize-1]
forewardrightmoves[1:bsize, 1:bsize] = essentialboard[1:bsize, 1:bsize] + essentialboard[0:bsize-1, 0:bsize-1]
forewardleftmoves[1:bsize, 0:bsize-1] = essentialboard[1:bsize, 0:bsize-1] + essentialboard[0:bsize-1, 1:bsize]
elif player == 2: # player 2 moves up board
forewardmoves[0:bsize-1] = essentialboard[0:bsize-1] + essentialboard[1:bsize]
forewardrightmoves[0:bsize-1, 1:bsize] = essentialboard[0:bsize-1, 1:bsize] + essentialboard[1:bsize, 0:bsize-1]
forewardleftmoves[0:bsize-1, 0:bsize-1] = essentialboard[0:bsize-1, 0:bsize-1] + essentialboard[1:bsize, 1:bsize]
else:
print("player not recognised")
forewardleftmoves[forewardleftmoves == 2] = 0
forewardrightmoves[forewardrightmoves == 2] = 0
forewardmoves[forewardmoves == 2] = 0
forewardleftmoves -= essentialboard
forewardrightmoves -= essentialboard
forewardmoves -= (essentialboard + enemyessentialboard)
if row == 'all':
moves = sum(sum(forewardleftmoves == 1)) + sum(sum(forewardrightmoves == 1)) + sum(sum(forewardmoves == 1))
else:
moves = sum(forewardleftmoves[row] == 1) + sum(forewardrightmoves[row] == 1) + sum(forewardmoves[row] == 1)
return moves
def nummoves2(board, player): # when row = 7 always returns 0
bsize = int(sqrt(size(board)))
moves = 0
essentialboard = (board == player) * 1
enemyessentialboard = (board == other(player) * 1)
#essentialboard[essentialboard == 0] = 2
forewardmoves = zeros((bsize, bsize))
forewardrightmoves = zeros((bsize, bsize))
forewardleftmoves = zeros((bsize, bsize))
if player == 1: # player 1 moves down board
forewardmoves[1:bsize] = essentialboard[1:bsize] + essentialboard[0:bsize-1]
forewardrightmoves[1:bsize, 1:bsize] = essentialboard[1:bsize, 1:bsize] + essentialboard[0:bsize-1, 0:bsize-1]
forewardleftmoves[1:bsize, 0:bsize-1] = essentialboard[1:bsize, 0:bsize-1] + essentialboard[0:bsize-1, 1:bsize]
elif player == 2: # player 2 moves up board
forewardmoves[0:bsize-1] = essentialboard[0:bsize-1] + essentialboard[1:bsize]
forewardrightmoves[0:bsize-1, 1:bsize] = essentialboard[0:bsize-1, 1:bsize] + essentialboard[1:bsize, 0:bsize-1]
forewardleftmoves[0:bsize-1, 0:bsize-1] = essentialboard[0:bsize-1, 0:bsize-1] + essentialboard[1:bsize, 1:bsize]
else:
print("player not recognised")
forewardleftmoves[forewardleftmoves == 2] = 0
forewardrightmoves[forewardrightmoves == 2] = 0
forewardmoves[forewardmoves == 2] = 0
forewardleftmoves -= essentialboard
forewardrightmoves -= essentialboard
forewardmoves -= (essentialboard + enemyessentialboard)
moves = (forewardleftmoves == 1)*1 + (forewardrightmoves == 1)*1 + (forewardmoves == 1)*1
return moves
def numtakes(board, player, row = 'all'):
row = relativerow(board, player, row)
bsize = int(sqrt(size(board)))
takes = 0
essentialboard = (board == player) * 1
enemyessentialboard = (board == other(player)) * 2
forewardrightmoves = zeros((bsize, bsize))
forewardleftmoves = zeros((bsize, bsize))
if player == 1: # player 1 moves down board
forewardrightmoves[1:bsize, 1:bsize] = essentialboard[0:bsize-1, 0:bsize-1] + enemyessentialboard[1:bsize, 1:bsize]
forewardleftmoves[1:bsize, 0:bsize-1] = essentialboard[0:bsize-1, 1:bsize] + enemyessentialboard[1:bsize, 0:bsize-1]
elif player == 2: # player 2 moves up board
forewardrightmoves[0:bsize-1, 1:bsize] = essentialboard[1:bsize, 0:bsize-1] + enemyessentialboard[0:bsize-1, 1:bsize]
forewardleftmoves[0:bsize-1, 0:bsize-1] = essentialboard[1:bsize, 1:bsize] + enemyessentialboard[0:bsize-1, 0:bsize-1]
else:
print("player not recognised")
if row == 'all':
takes = sum(sum(forewardleftmoves == 3)) + sum(sum(forewardrightmoves == 3))
else:
takes = sum(forewardleftmoves[row] == 3) + sum(forewardrightmoves[row] == 3)
return takes
def numtakes2(board, player):
bsize = int(sqrt(size(board)))
takes = 0
essentialboard = (board == player) * 1
enemyessentialboard = (board == other(player)) * 2
forewardrightmoves = zeros((bsize, bsize))
forewardleftmoves = zeros((bsize, bsize))
if player == 1: # player 1 moves down board
forewardrightmoves[1:bsize, 1:bsize] = essentialboard[0:bsize-1, 0:bsize-1] + enemyessentialboard[1:bsize, 1:bsize]
forewardleftmoves[1:bsize, 0:bsize-1] = essentialboard[0:bsize-1, 1:bsize] + enemyessentialboard[1:bsize, 0:bsize-1]
elif player == 2: # player 2 moves up board
forewardrightmoves[0:bsize-1, 1:bsize] = essentialboard[1:bsize, 0:bsize-1] + enemyessentialboard[0:bsize-1, 1:bsize]
forewardleftmoves[0:bsize-1, 0:bsize-1] = essentialboard[1:bsize, 1:bsize] + enemyessentialboard[0:bsize-1, 0:bsize-1]
else:
print("player not recognised")
takes = (forewardleftmoves == 3)*1 + (forewardrightmoves == 3)*1
return takes
def numsafe(board, player, degree, row = 'all'):
row = relativerow(board, player, row)
if row == 'all':
nsafe = sum(sum(safemap(board, player) == degree))
else:
nsafe = sum(sum(safemap(board, player)[row] == degree))
return nsafe
def numsafe2(board, player):
return safemap(board, player)
def numsafedegree1(board, player, row = 'all'):
return numsafe(board, player, 1, row)
def numsafedegree2(board, player, row = 'all'):
return numsafe(board, player, 2, row)
def safemap(board, player):
bsize = int(sqrt(size(board)))
essentialboard = (board == player) * 1
forewardrightmoves = zeros((bsize, bsize))
forewardleftmoves = zeros((bsize, bsize))
nsafe = 0
smap = zeros((bsize, bsize))
if player == 1: # player 1 moves down board
forewardrightmoves[1:bsize, 1:bsize] = essentialboard[0:bsize-1, 0:bsize-1] + essentialboard[1:bsize, 1:bsize]
forewardleftmoves[1:bsize, 0:bsize-1] = essentialboard[0:bsize-1, 1:bsize] + essentialboard[1:bsize, 0:bsize-1]
elif player == 2: # player 2 moves up board
forewardrightmoves[0:bsize-1, 1:bsize] = essentialboard[1:bsize, 0:bsize-1] + essentialboard[0:bsize-1, 1:bsize]
forewardleftmoves[0:bsize-1, 0:bsize-1] = essentialboard[1:bsize, 1:bsize] + essentialboard[0:bsize-1, 0:bsize-1]
else:
print("player not recognised")
s1 = zeros((bsize, bsize))
s2 = zeros((bsize, bsize))
s1[forewardrightmoves == 2] = 1
s2[forewardleftmoves == 2] = 1
smap = s1 + s2
return smap
def numunsafe(board, player, row = 'all'):
row = relativerow(board, player, row)
if row == 'all':
nunsafe = numpieces(board, player) - sum(sum(safemap(board, player) != 0))
else:
nunsafe = numpieces(board, player, row) - sum(safemap(board, player)[row] != 0)
return nunsafe
def numunsafe2(board, player):
essentialboard = (board == player) * 1
return (((numsafe2(board, player) == 0)*1) == essentialboard)*1
test = zeros((8,8))
test[(0,1),:] = 1
test[(6,7),:] = 2
test
test2 = zeros((8,8))
test2[4,(2,4,6)] = 1
test2[5, 3:6] = 2
test2
test3 = copy(test2)
test3[3,(1,3,5)] = 1
test3
test4 = zeros((8,8))
test4[0, 1] = 1
test4[1, 0] = 2
test4
#print(numpieces2(test, 2))
# print(test4)
# print('')
# print(numunsafe2(test4, 2))
#print(nummoves2(test4, 2))
#numpieces(test, 1)
#nummoves(test3, 2, 3) # 22
#numtakes(test3, 1, 5)
#numsafe(test3, 1, 2)
#safemap(test3, 1)
#numunsafe(test3, 2, 5)