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chess board.txt
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Q6.def enumerate_moves(x, y):
potential_moves = [] # moves before clean up function
# ------------------------------------------------------------------------------
# resolve pawn moves. 4 possible moves maximally
if board[x][y] == "bPawn":
potential_moves.append([[x+1], [y]])
# if the pawn is in the second rank (has not moved)
try:
if board[x+2][y] == "" and x == 1 and board[x+1][y] == "":
potential_moves.append([[x+2], [y]])
except IndexError:
pass
try:
if board[x+1][y+1][0] == "w":
potential_moves.append([x+1], [y+1])
except IndexError:
pass
try:
if board[x+1][y-1][0] == "w":
potential_moves.append([x+1], [y-1])
except IndexError:
pass
# ------------------------------------------------------------------------------
# resolve knight moves. 8 possible moves maximally
elif board[x][y] == "bKnight":
potential_moves.append([[x+2], [y+1]])
potential_moves.append([[x+2], [y-1]])
potential_moves.append([[x+1], [y+2]])
potential_moves.append([[x+1], [y+2]])
potential_moves.append([[x-2], [y-1]])
potential_moves.append([[x-2], [y+1]])
potential_moves.append([[x-1], [y+2]])
potential_moves.append([[x-1], [y-2]])
# ------------------------------------------------------------------------------
elif board[x][y] == "bBishop":
# down and right
a = x + 1
b = y + 1
while (7 > a >= 0 and 7 > b >= 0) and (board[a][b] == ""):
potential_moves.append([[a], [b]])
try:
if board[a+1][b+1][0] == "w":
potential_moves.append([[a+1], [b+1]])
except IndexError:
pass
a += 1
b += 1
# down and left
a = x + 1
b = y - 1
while (7 > a >= 0 and 7 > b >= 0) and (board[a][b] == ""):
potential_moves.append([[a], [b]])
try:
if board[a+1][b-1][0] == "w":
potential_moves.append([[a+1], [b-1]])
except IndexError:
pass
a += 1
b -= 1
# up and right
a = x - 1
b = y + 1
while (7 > a >= 0 and 7 > b >= 0) and (board[a][b] == ""):
potential_moves.append([[a], [b]])
try:
if board[a-1][b+1][0] == "w":
potential_moves.append([[a-1], [b+1]])
except IndexError:
pass
a -= 1
b += 1
# up and left
a = x - 1
b = y - 1
while (7 > a >= 0 and 7 > b >= 0) and (board[a][b] == ""):
potential_moves.append([[a], [b]])
try:
if board[a-1][b-1][0] == "w":
potential_moves.append([[a-1], [b-1]])
except IndexError:
pass
a -= 1
b -= 1
# ------------------------------------------------------------------------------
elif board[x][y] == "bRook":
# down
a = x + 1
b = y
while (7 > a >= 0 and 7 > b >= 0) and (board[a][b] == ""):
potential_moves.append([[a], [b]])
try:
if board[a+1][b][0] == "w":
potential_moves.append([[a+1], [b]])
except IndexError:
pass
a += 1
# left
a = x
b = y - 1
while (7 > a >= 0 and 7 > b >= 0) and (board[a][b] == ""):
potential_moves.append([[a], [b]])
try:
if board[a][b-1][0] == "w":
potential_moves.append([[a], [b-1]])
except IndexError:
pass
b -= 1
# up
a = x - 1
b = y
while (7 > a >= 0 and 7 > b >= 0) and (board[a][b] == ""):
potential_moves.append([[a], [b]])
try:
if board[a-1][b][0] == "w":
potential_moves.append([[a-1], [b]])
except IndexError:
pass
a -= 1
# right
a = x
b = y + 1
while (7 > a >= 0 and 7 > b >= 0) and (board[a][b] == ""):
potential_moves.append([[a], [b]])
try:
if board[a][b+1][0] == "w":
potential_moves.append([[a], [b+1]])
except IndexError:
pass
b += 1
# ------------------------------------------------------------------------------
elif board[x][y] == "bQueen":
# down and right
a = x + 1
b = y + 1
while (7 > a >= 0 and 7 > b >= 0) and (board[a][b] == ""):
potential_moves.append([[a], [b]])
try:
if board[a+1][b+1][0] == "w":
potential_moves.append([[a+1], [b+1]])
except IndexError:
pass
a += 1
b += 1
# down and left
a = x + 1
b = y - 1
while (7 > a >= 0 and 7 > b >= 0) and (board[a][b] == ""):
potential_moves.append([[a], [b]])
try:
if board[a+1][b-1][0] == "w":
potential_moves.append([[a+1], [b-1]])
except IndexError:
pass
a += 1
b -= 1
# up and right
a = x - 1
b = y + 1
while (7 > a >= 0 and 7 > b >= 0) and (board[a][b] == ""):
potential_moves.append([[a], [b]])
try:
if board[a-1][b+1][0] == "w":
potential_moves.append([[a-1], [b+1]])
except IndexError:
pass
a -= 1
b += 1
# up and left
a = x - 1
b = y - 1
while (7 > a >= 0 and 7 > b >= 0) and (board[a][b] == ""):
potential_moves.append([[a], [b]])
try:
if board[a-1][b-1][0] == "w":
potential_moves.append([[a-1], [b-1]])
except IndexError:
pass
a -= 1
b -= 1
# down
a = x + 1
b = y
while (7 > a >= 0 and 7 > b >= 0) and (board[a][b] == ""):
potential_moves.append([[a], [b]])
try:
if board[a+1][b][0] == "w":
potential_moves.append([[a+1], [b]])
except IndexError:
pass
a += 1
# left
a = x
b = y - 1
while (7 > a >= 0 and 7 > b >= 0) and (board[a][b] == ""):
potential_moves.append([[a], [b]])
try:
if board[a][b-1][0] == "w":
potential_moves.append([[a], [b-1]])
except IndexError:
pass
b -= 1
# up
a = x - 1
b = y
while (7 > a >= 0 and 7 > b >= 0) and (board[a][b] == ""):
potential_moves.append([[a], [b]])
try:
if board[a-1][b][0] == "w":
potential_moves.append([[a-1], [b]])
except IndexError:
pass
a -= 1
# right
a = x
b = y + 1
while (7 > a >= 0 and 7 > b >= 0) and (board[a][b] == ""):
potential_moves.append([[a], [b]])
try:
if board[a][b+1][0] == "w":
potential_moves.append([[a], [b+1]])
except IndexError:
pass
b += 1
# ------------------------------------------------------------------------------
elif board[x][y] == "bKing":
potential_moves.append([[x+1], [y]])
potential_moves.append([[x+1], [y+1]])
potential_moves.append([[x], [y+1]])
potential_moves.append([[x-1], [y+1]])
potential_moves.append([[x-1], [y]])
potential_moves.append([[x-1], [y-1]])
potential_moves.append([[x], [y-1]])
potential_moves.append([[x+1], [y-1]])
# ------------------------------------------------------------------------------
moves = append_strip_negatives(potential_moves)
return moves
#this code was run by Medha Vaid