def __init__(self, board: Board, addr: str):
# a reference to the board
self.board = board
# the position address
self.address = addr
# the piece currently in this position
self.piece: Union[tuple, Piece] = ()
try:
assert address.is_valid(self.address) is True
except AssertionError as e:
print("Tried initializing position with invalid address")
raise e
def copy_board(self, original=None) -> dict:
"""Copy the board state."""
original = original or self.positions
positions: dict = {}
for let in address.LETTERS: # iterate through columns
positions[let] = {}
for num in address.NUMBERS: # iterate through rows
addr = let + num
if address.is_valid(addr):
if num == 0:
pos = Position(self, "b0")
else:
pos = Position(self, addr)
if original[let][int(num)].is_tiger():
pos.place_tiger()
elif original[let][int(num)].is_goat():
pos.place_goat()
positions[let][int(num)] = pos
return positions
def clear(self):
"""
Reset the board.
"""
self.positions = {}
for let in address.LETTERS: # iterate through columns
self.positions[let] = {}
for num in address.NUMBERS: # iterate through rows
addr = let + num
# check if this position ID is valid
if address.is_valid(addr):
if num == 0:
pos = Position(self, "b0")
else:
pos = Position(self, addr)
self.positions[let][int(num)] = pos
# also reset the number of captured pieces
self.num_captured = 0
self.num_moves = 0
self.is_all_goats_placed = False