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drive.py
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drive.py
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import piece
class Drive(piece.Piece):
"""
Class that represents the Drive piece.
"""
def __init__(self, lowerSide):
self.ID = id(Drive)
self.origin = Drive
self.lowerSide = lowerSide
self.canPromote = False
def __repr__(self):
if self.lowerSide is None:
return "__"
if self.lowerSide:
return " d"
else:
return " D"
def generatePossibleMoves(self, board, start):
"""
:param board: the chess board
:param start: the starting position
:return: all valid moves of drive starting from index position.
"""
i, j = start.getX(), start.getY()
candidate = [(i+1, j), (i-1,j), (i, j+1), (i, j-1), (i+1,j+1), (i-1, j-1),
(i+1, j-1), (i-1, j+1)]
res = []
for x, y in candidate:
if 0 <= x <= 4 and 0 <= y <= 4 and \
(not board[x][y].getPiece() or board[x][y].getPiece().isLower() != start.getPiece().isLower()):
res.append(board[x][y])
return res
def canMove(self, player, board, start, end, changeCapture = True):
"""
:param player: the current player
:param board: the chess board
:param start: the starting position
:param end: the ending position
:param changeCapture: boolean indicating whether the captureList needs to be changed
:return: whether the player could move from start to end in the given board
"""
if not self.checkMoveBasics(start, end):
return False
allMoves = self.generatePossibleMoves(board, start)
if end not in allMoves:
return False
if end.getPiece():
if changeCapture:
player.setCapture(end.getPiece().origin(player.lowerSide))
end.setPiece(start.getPiece())
start.setPiece(None)
return True