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board.py
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# Main file
import sys
import math
import copy
import string
import time
import os
# Board and pieces
intialPos = '0b0b0b0bb0b0b0b00b0b0b0b0000000000000000w0w0w0w00w0w0w0ww0w0w0w0'
customPos = '0b0b0b0bb0b0b0b00b0b0b000000000000000000w0w0w0w00w0w0w0ww0w0w0w0'
evalCalls = 0
class Board:
lastBoard = [[0 for i in range(8)] for j in range(8)]
def __init__(self, str):
self.board = [[0 for i in range(8)] for j in range(8)]
for i in range(63):
if str[i] == 'N':
break
row = i // 8
col = i % 8
if str[i] == '0':
continue
elif str[i] == 'w':
self.board[row][col] = 1
elif str[i] == 'b':
self.board[row][col] = -1
elif str[i] == 'W':
self.board[row][col] = 2
elif str[i] == 'B':
self.board[row][col] = -2
else:
print("Invalid input")
break
def __del__(self):
pass
def updateValue(self, x, y, value):
self.board[x][y] = value
def getValue(self, x, y):
return self.board[x][y]
def getBoard(self):
return self.board
def getString(self):
str = ''
for i in range(8):
for j in range(8):
if self.board[i][j] == 0:
str += '0'
elif self.board[i][j] == 1:
str += 'w'
elif self.board[i][j] == -1:
str += 'b'
elif self.board[i][j] == 2:
str += 'W'
elif self.board[i][j] == -2:
str += 'B'
else:
print("Invalid input")
return str
def printBoard(self):
#Print 8x8 grid
for i in range(8):
for j in range(8):
if(self.board[i][j] >= 0):
print(self.board[i][j], end = ' ')
else:
print(self.board[i][j], end = ' ')
print()
def editBoard(self, str):
for i in range(64):
if str[i] == 'N':
break
row = i // 8
col = i % 8
if str[i] == '0':
self.board[row][col] = 0
elif str[i] == 'w':
self.board[row][col] = 1
elif str[i] == 'b':
self.board[row][col] = -1
elif str[i] == 'W':
self.board[row][col] = 2
elif str[i] == 'B':
self.board[row][col] = -2
else:
print("Invalid input")
break
#Game Logic
def endGame(self, turn):
sum = 0
for i in range(8):
for j in range(8):
if(self.board[i][j] > 0):
sum += 1
if sum == 0:
print ("Win by no pieces left")
return True
sum = 0
for i in range(8):
for j in range(8):
if(self.board[i][j] < 0):
sum += 1
if sum == 0:
print ("Win by no pieces left")
return True
if not self.moveAvailable(turn):
print ("Win by no moves left")
return True
return False
def moveAvailable(self, turn):
for i in range(8):
for j in range(8):
if turn == 1:
if self.board[i][j] > 0:
if self.moveAllowed(i, j, 'L', turn):
return True
if self.moveAllowed(i, j, 'R', turn):
return True
if self.moveAllowed(i, j, '-L', turn):
return True
if self.moveAllowed(i, j, '-R', turn):
return True
if turn == -1:
if self.board[i][j] < 0:
if self.moveAllowed(i, j, 'L', turn):
return True
if self.moveAllowed(i, j, 'R', turn):
return True
if self.moveAllowed(i, j, '-L', turn):
return True
if self.moveAllowed(i, j, '-R', turn):
return True
return False
def utility(self, turn):
if not self.endGame(turn):
return 0
if not self.moveAvailable(1):
return -1
if not self.moveAvailable(-1):
return 1
countWhite = 0
countBlack = 0
for i in range(8):
for j in range(8):
if self.board[i][j] > 0:
countWhite += 1
if self.board[i][j] < 0:
countBlack += 1
if countWhite == 0:
return -1
if countBlack == 0:
return 1
return 0
def availableCapture(self, turn):
if turn == 1:
for i in range(8):
for j in range(8):
if self.board[i][j] == 1:
if i - 2 >= 0 and j - 2 >= 0 and self.board[i-1][j-1] == -1 and self.board[i-2][j-2] == 0:
return True
if i - 2 >= 0 and j + 2 < 8 and self.board[i-1][j+1] == -1 and self.board[i-2][j+2] == 0:
return True
if i - 2 >= 0 and j - 2 >= 0 and self.board[i-1][j-1] == -2 and self.board[i-2][j-2] == 0:
return True
if i - 2 >= 0 and j + 2 < 8 and self.board[i-1][j+1] == -2 and self.board[i-2][j+2] == 0:
return True
if self.board[i][j] == 2:
if i - 2 >= 0 and j - 2 >= 0 and self.board[i-1][j-1] == -1 and self.board[i-2][j-2] == 0:
return True
if i - 2 >= 0 and j + 2 < 8 and self.board[i-1][j+1] == -1 and self.board[i-2][j+2] == 0:
return True
if i - 2 >= 0 and j - 2 >= 0 and self.board[i-1][j-1] == -2 and self.board[i-2][j-2] == 0:
return True
if i - 2 >= 0 and j + 2 < 8 and self.board[i-1][j+1] == -2 and self.board[i-2][j+2] == 0:
return True
if i + 2 < 8 and j - 2 >= 0 and self.board[i+1][j-1] == -1 and self.board[i+2][j-2] == 0:
return True
if i + 2 < 8 and j + 2 < 8 and self.board[i+1][j+1] == -1 and self.board[i+2][j+2] == 0:
return True
if i + 2 < 8 and j - 2 >= 0 and self.board[i+1][j-1] == -2 and self.board[i+2][j-2] == 0:
return True
if i + 2 < 8 and j + 2 < 8 and self.board[i+1][j+1] == -2 and self.board[i+2][j+2] == 0:
return True
if turn == -1:
for i in range(8):
for j in range(8):
if self.board[i][j] == -1:
if i + 2 < 8 and j - 2 >= 0 and self.board[i+1][j-1] == 1 and self.board[i+2][j-2] == 0:
return True
if i + 2 < 8 and j + 2 < 8 and self.board[i+1][j+1] == 1 and self.board[i+2][j+2] == 0:
return True
if i + 2 < 8 and j - 2 >= 0 and self.board[i+1][j-1] == 2 and self.board[i+2][j-2] == 0:
return True
if i + 2 < 8 and j + 2 < 8 and self.board[i+1][j+1] == 2 and self.board[i+2][j+2] == 0:
return True
if self.board[i][j] == -2:
if i + 2 < 8 and j - 2 >= 0 and self.board[i+1][j-1] == 1 and self.board[i+2][j-2] == 0:
return True
if i + 2 < 8 and j + 2 < 8 and self.board[i+1][j+1] == 1 and self.board[i+2][j+2] == 0:
return True
if i + 2 < 8 and j - 2 >= 0 and self.board[i+1][j-1] == 2 and self.board[i+2][j-2] == 0:
return True
if i + 2 < 8 and j + 2 < 8 and self.board[i+1][j+1] == 2 and self.board[i+2][j+2] == 0:
return True
if i - 2 >= 0 and j - 2 >= 0 and self.board[i-1][j-1] == 1 and self.board[i-2][j-2] == 0:
return True
if i - 2 >= 0 and j + 2 < 8 and self.board[i-1][j+1] == 1 and self.board[i-2][j+2] == 0:
return True
if i - 2 >= 0 and j - 2 >= 0 and self.board[i-1][j-1] == 2 and self.board[i-2][j-2] == 0:
return True
if i - 2 >= 0 and j + 2 < 8 and self.board[i-1][j+1] == 2 and self.board[i-2][j+2] == 0:
return True
return False
def moveAllowed(self, x, y, direction, turn):
if (self.board[x][y] == 0):
return False
if (turn == 1 and self.board[x][y] < 0):
return False
if (turn == -1 and self.board[x][y] > 0):
return False
if turn == 1:
if (direction == 'L'):
if(y == 0 or x == 0):
return False
if (self.board[x-1][y-1] > 0):
return False
if (self.board[x-1][y-1] < 0):
if(x == 1 or y == 1):
return False
if(self.board[x-2][y-2] != 0):
return False
return True
if (self.board[x-1][y-1] == 0 and not self.availableCapture(turn)):
return True
if (direction == 'R'):
if(y == 7 or x == 0):
return False
if (self.board[x-1][y+1] > 0):
return False
if (self.board[x-1][y+1] < 0):
if(x == 1 or y == 6):
return False
if(self.board[x-2][y+2] != 0):
return False
return True
if (self.board[x-1][y+1] == 0 and not self.availableCapture(turn)):
return True
if (direction == '-L'):
if(self.board[x][y] != 2):
return False
if(y == 0 or x == 7):
return False
if (self.board[x+1][y-1] > 0):
return False
if (self.board[x+1][y-1] < 0):
if(x == 6 or y == 1):
return False
if(self.board[x+2][y-2] != 0):
return False
return True
if (self.board[x+1][y-1] == 0 and not self.availableCapture(turn)):
return True
if (direction == '-R'):
if(self.board[x][y] != 2):
return False
if(y == 7 or x == 7):
return False
if (self.board[x+1][y+1] > 0):
return False
if (self.board[x+1][y+1] < 0):
if(x == 6 or y == 6):
return False
if(self.board[x+2][y+2] != 0):
return False
return True
if (self.board[x+1][y+1] == 0 and not self.availableCapture(turn)):
return True
if turn == -1:
if (direction == 'L'):
if(y == 0 or x == 7):
return False
if (self.board[x+1][y-1] < 0):
return False
if (self.board[x+1][y-1] > 0):
if(x == 6 or y == 1):
return False
if(self.board[x+2][y-2] != 0):
return False
return True
if (self.board[x+1][y-1] == 0 and not self.availableCapture(turn)):
return True
if (direction == 'R'):
if(y == 7 or x == 7):
return False
if (self.board[x+1][y+1] < 0):
return False
if (self.board[x+1][y+1] > 0):
if(x == 6 or y == 6):
return False
if(self.board[x+2][y+2] != 0):
return False
return True
if (self.board[x+1][y+1] == 0 and not self.availableCapture(turn)):
return True
if (direction == '-L'):
if(self.board[x][y] != -2):
return False
if(y == 0 or x == 0):
return False
if (self.board[x-1][y-1] < 0):
return False
if (self.board[x-1][y-1] > 0):
if(x == 1 or y == 1):
return False
if(self.board[x-2][y-2] != 0):
return False
return True
if (self.board[x-1][y-1] == 0 and not self.availableCapture(turn)):
return True
if (direction == '-R'):
if(self.board[x][y] != -2):
return False
if(y == 7 or x == 0):
return False
if (self.board[x-1][y+1] < 0):
return False
if (self.board[x-1][y+1] > 0):
if(x == 1 or y == 6):
return False
if(self.board[x-2][y+2] != 0):
return False
return True
if (self.board[x-1][y+1] == 0 and not self.availableCapture(turn)):
return True
return False
def move(self, x, y, direction, turn):
if (self.board[x][y] == 0):
return False
if (turn == 1 and self.board[x][y] < 0):
return False
if (turn == -1 and self.board[x][y] > 0):
return False
if turn == 1:
if (direction == 'L'):
if(y == 0 or x == 0):
return False
if (self.board[x-1][y-1] > 0):
return False
if (self.board[x-1][y-1] < 0):
if(x == 1 or y == 1):
return False
if(self.board[x-2][y-2] != 0):
return False
self.board[x-2][y-2] = self.board[x][y]
self.board[x][y] = 0
self.board[x-1][y-1] = 0
self.promotion()
# Capture multiple piece
if(self.availableCapture(turn)):
for i in ['L', 'R', '-L', '-R']:
if self.move(x-2, y-2, i, turn):
return True
return True
if (self.board[x-1][y-1] == 0):
if(self.availableCapture(turn)):
return False
self.board[x-1][y-1] = self.board[x][y]
self.board[x][y] = 0
self.promotion()
return True
if (direction == 'R'):
if(y == 7 or x == 0):
return False
if (self.board[x-1][y+1] > 0):
return False
if (self.board[x-1][y+1] < 0):
if(x == 1 or y == 6):
return False
if(self.board[x-2][y+2] != 0):
return False
self.board[x-2][y+2] = self.board[x][y]
self.board[x][y] = 0
self.board[x-1][y+1] = 0
self.promotion()
if(self.availableCapture(turn)):
for i in ['L', 'R', '-L', '-R']:
if self.move(x-2, y+2, i, turn):
return True
return True
if (self.board[x-1][y+1] == 0):
if(self.availableCapture(turn)):
return False
self.board[x-1][y+1] = self.board[x][y]
self.board[x][y] = 0
self.promotion()
return True
if (direction == '-L'):
if(self.board[x][y] != 2):
return False
if(y == 0 or x == 7):
return False
if (self.board[x+1][y-1] > 0):
return False
if (self.board[x+1][y-1] < 0):
if(x == 6 or y == 1):
return False
if(self.board[x+2][y-2] != 0):
return False
self.board[x+2][y-2] = self.board[x][y]
self.board[x][y] = 0
self.board[x+1][y-1] = 0
if(self.availableCapture(turn)):
for i in ['L', 'R', '-L', '-R']:
if self.move(x+2, y-2, i, turn):
return True
return True
if (self.board[x+1][y-1] == 0):
if(self.availableCapture(turn)):
return False
self.board[x+1][y-1] = self.board[x][y]
self.board[x][y] = 0
return True
if (direction == '-R'):
if(self.board[x][y] != 2):
return False
if(y == 7 or x == 7):
return False
if (self.board[x+1][y+1] > 0):
return False
if (self.board[x+1][y+1] < 0):
if(x == 6 or y == 6):
return False
if(self.board[x+2][y+2] != 0):
return False
self.board[x+2][y+2] = self.board[x][y]
self.board[x][y] = 0
self.board[x+1][y+1] = 0
if(self.availableCapture(turn)):
for i in ['L', 'R', '-L', '-R']:
if self.move(x+2, y+2, i, turn):
return True
return True
if (self.board[x+1][y+1] == 0):
if(self.availableCapture(turn)):
return False
self.board[x+1][y+1] = self.board[x][y]
self.board[x][y] = 0
return True
if turn == -1:
if (direction == 'L'):
if(y == 0 or x == 7):
return False
if (self.board[x+1][y-1] < 0):
return False
if (self.board[x+1][y-1] > 0):
if(x == 6 or y == 1):
return False
if(self.board[x+2][y-2] != 0):
return False
self.board[x+2][y-2] = self.board[x][y]
self.board[x][y] = 0
self.board[x+1][y-1] = 0
self.promotion()
if(self.availableCapture(turn)):
for i in ['L', 'R', '-L', '-R']:
if self.move(x+2, y-2, i, turn):
return True
return True
if (self.board[x+1][y-1] == 0):
if(self.availableCapture(turn)):
return False
self.board[x+1][y-1] = self.board[x][y]
self.board[x][y] = 0
self.promotion()
return True
if (direction == 'R'):
if(y == 7 or x == 7):
return False
if (self.board[x+1][y+1] < 0):
return False
if (self.board[x+1][y+1] > 0):
if(x == 6 or y == 6):
return False
if(self.board[x+2][y+2] != 0):
return False
self.board[x+2][y+2] = self.board[x][y]
self.board[x][y] = 0
self.board[x+1][y+1] = 0
self.promotion()
if(self.availableCapture(turn)):
for i in ['L', 'R', '-L', '-R']:
if self.move(x+2, y+2, i, turn):
return True
return True
if (self.board[x+1][y+1] == 0):
if(self.availableCapture(turn)):
return False
self.board[x+1][y+1] = self.board[x][y]
self.board[x][y] = 0
self.promotion()
return True
if (direction == '-L'):
if(self.board[x][y] != -2):
return False
if(y == 0 or x == 0):
return False
if (self.board[x-1][y-1] < 0):
return False
if (self.board[x-1][y-1] > 0):
if(x == 1 or y == 1):
return False
if(self.board[x-2][y-2] != 0):
return False
self.board[x-2][y-2] = self.board[x][y]
self.board[x][y] = 0
self.board[x-1][y-1] = 0
if(self.availableCapture(turn)):
for i in ['L', 'R', '-L', '-R']:
if self.move(x-2, y-2, i, turn):
return True
return True
if (self.board[x-1][y-1] == 0):
if(self.availableCapture(turn)):
return False
self.board[x-1][y-1] = self.board[x][y]
self.board[x][y] = 0
return True
if (direction == '-R'):
if(self.board[x][y] != -2):
return False
if(y == 7 or x == 0):
return False
if (self.board[x-1][y+1] < 0):
return False
if (self.board[x-1][y+1] > 0):
if(x == 1 or y == 6):
return False
if(self.board[x-2][y+2] != 0):
return False
self.board[x-2][y+2] = self.board[x][y]
self.board[x][y] = 0
self.board[x-1][y+1] = 0
if(self.availableCapture(turn)):
for i in ['L', 'R', '-L', '-R']:
if self.move(x-2, y+2, i, turn):
return True
return True
if (self.board[x-1][y+1] == 0):
if(self.availableCapture(turn)):
return False
self.board[x-1][y+1] = self.board[x][y]
self.board[x][y] = 0
return True
return False
def promotion(self):
for i in range(8):
if self.board[0][i] == 1:
self.board[0][i] = 2
if self.board[7][i] == -1:
self.board[7][i] = -2
return
def betterPrintBoard(self):
print(' 0 1 2 3 4 5 6 7')
for i in range(8):
print(i, end=' ')
for j in range(8):
if (self.board[i][j] == 0):
print('.', end = ' ')
elif(self.board[i][j] > 0):
print(self.board[i][j], end = ' ')
else:
print(self.board[i][j], end = '')
print()
def listOfSquares(self, turn):
# Assign 0 0 as 0 to 7 7 as 63.
# Return list of square numbers that are occupied by the player
moveList = []
for i in range(8):
for j in range(8):
if turn == 1:
if self.board[i][j] > 0:
moveList.append(i*8 + j)
if turn == -1:
if self.board[i][j] < 0:
moveList.append(i*8 + j)