On 4/26/2016 8:56 PM, Random832 wrote:
what exactly do you mean by property decorators? If you're just
accessing them in a dictionary what's the benefit over having the
values be simple attributes rather than properties?
After considering the feedback I got for sanity checking my code, I've
decided to simplify the base class for the chess pieces (see code
below). All the variables are stored inside a dictionary with most
values accessible through properties. A custom dictionary can be loaded
through the constructor and or saved out through the fetch_state method.
The subclasses only have to implement the is_move_valid method, which is
different for each type of chess piece.
Thank you,
Chris R.
class Piece(object):
def __init__(self, color, position, state=None):
if state is None:
self._state = {
'class': self.__class__.__name__,
'color': color,
'first_move': True,
'initial_position': position,
'move_count': 0,
'name': color.title() + ' ' + self.__class__.__name__,
'notation': color.title()[:1] +
self.__class__.__name__[:1],
'position': position
}
else:
self._state = state
@property
def color(self):
return self._state['color']
def fetch_state(self):
return self._state
def is_move_valid(self, new_position, board_state):
raise NotImplementedError
@property
def move_count(self):
return self._state['move_count']
@property
def name(self):
return self._state['name']
@property
def notation(self):
return self._state['notation']
@property
def position(self):
return self._state['position']
@position.setter
def position(self, position):
self._state['position'] = position
if self._state['first_move']:
self._state['first_move'] = False
self._state['move_count'] += 1
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