Private & Protected в ООП

Програмиране с Python

Курс във Факултета по Математика и Информатика към СУ

Решение на Шахматни фенове от Рая Симеонова

Обратно към всички решения

Към профила на Рая Симеонова

Резултати

  • 10 точки от тестове
  • 0 бонус точки
  • 10 точки общо
  • 17 успешни тест(а)
  • 0 неуспешни тест(а)

Код

import itertools
class ChessException(Exception):
pass
class ChessPosition:
def __init__(self, fen):
self._fen = fen
self._chessboard = {}
chessboard_rows = fen.split('/')
chessboard_rows.reverse()
pawn_invalid_position = False
white_kings_count = 0
black_kings_count = 0
for row_number, row in enumerate(chessboard_rows, start=1):
col = 'A'
for figure in row:
increment_col_by = 1
if figure.isdigit():
increment_col_by = int(figure)
else:
position = col + str(row_number)
self._chessboard[position] = figure
if row_number in [1, 8] and figure.casefold() == 'p':
pawn_invalid_position = True
if figure == 'k':
black_kings_count += 1
black_king_position = position
if figure == 'K':
white_kings_count += 1
white_king_position = position
col = chr(ord(col) + increment_col_by)
self._validate_kings_count(white_kings_count, black_kings_count)
self._validate_kings_position(white_king_position, black_king_position)
if pawn_invalid_position:
raise ChessException("pawns")
def get_white_score(self):
allowed = {"R", "B", "K", "N", "Q", "P"}
return self._get_score(allowed)
def get_black_score(self):
allowed = {"r", "b", "k", "n", "q", "p"}
return self._get_score(allowed)
def white_is_winning(self):
return self.get_white_score() > self.get_black_score()
def black_is_winning(self):
return self.get_black_score() > self.get_white_score()
def is_equal(self):
return self.get_white_score() == self.get_black_score()
def __str__(self):
return self._fen
def __len__(self):
return len(self._chessboard)
def __getitem__(self, key):
return self._chessboard[key] if key in self._chessboard else None
def _get_score(self, allowed):
figures = []
for figure in self._chessboard.values():
if figure in allowed:
figures.append(figure.casefold())
return ChessScore(figures)
def _validate_kings_position(self, white_king_position, black_king_position):
black_king_col, black_king_row = [*black_king_position]
forbidden_cols = [chr(ord(black_king_col) - 1), black_king_col, chr(ord(black_king_col) + 1)]
forbidden_rows = [str(int(black_king_row) - 1), black_king_row, str(int(black_king_row) + 1)]
forbidden_positions = [''.join(pair) for pair in list(itertools.product(forbidden_cols, forbidden_rows))]
if white_king_position in forbidden_positions:
raise ChessException("kings")
def _validate_kings_count(self, white_kings_count, black_kings_count):
if white_kings_count != 1 or black_kings_count != 1:
raise ChessException("kings")
class ChessScore:
_figure_points = {
'r': 5,
'n': 3,
'b': 3,
'q': 9,
'k': 4,
'p': 1,
}
def __init__(self, figures):
self._score = 0
for figure in figures:
self._score += self._figure_points[figure.casefold()]
def __int__(self):
return self._score
def __lt__(self, other):
return self._score < other._score
def __le__(self, other):
return self._score <= other._score
def __eq__(self, other):
return self._score == other._score
def __nq__(self, other):
return self._score != other._score
def __gt__(self, other):
return self._score > other._score
def __add__(self, other):
return self._score + other._score
def __sub__(self, other):
return self._score - other._score

Лог от изпълнението

.................
----------------------------------------------------------------------
Ran 17 tests in 0.155s

OK

История (2 версии и 3 коментара)

Рая обнови решението на 29.11.2022 14:34 (преди над 1 година)

+import itertools
+
+
+class ChessException(Exception):
+
+ def __init__(self, message):
+ self._message = message
+ super().__init__(message)
+
+
+class ChessPosition:
+
+ def __init__(self, fen):
+ self._fen = fen
+ self._chessboard = {}
+ chessboard_rows = fen.split('/')
+ chessboard_rows.reverse()
+
+ pawn_invalid_position = False
+ white_kings_count = 0
+ black_kings_count = 0
+
+ for row_number, row in enumerate(chessboard_rows, start=1):
+ col = 'A'
+ for figure in row:
+ increment_col_by = 1
+
+ if(figure.isdigit()):
+ increment_col_by = int(figure)
+ else:
+ position = col + str(row_number)
+ self._chessboard[position] = figure
+
+ if(row_number in [1, 8] and figure.casefold() == 'p'):
+ pawn_invalid_position = True
+
+ if(figure == 'k'):
+ black_kings_count += 1
+ black_king_position = position
+
+ if(figure == 'K'):
+ white_kings_count += 1
+ white_king_position = position
+
+ col = chr(ord(col) + increment_col_by)
+
+ self.__is_valid_kings_count(white_kings_count, black_kings_count)
+ self.__is_valid_kings_position(white_king_position, black_king_position)
+
+ if(pawn_invalid_position):
+ raise ChessException("pawns")
+
+ def get_white_score(self):
+ allowed = {"R", "B", "K", "N", "Q", "P"}
+ return self.__get_score(allowed)
+
+ def get_black_score(self):
+ allowed = {"r", "b", "k", "n", "q", "p"}
+ return self.__get_score(allowed)
+
+ def white_is_winning(self):
+ return self.get_white_score() > self.get_black_score()
+
+ def black_is_winning(self):
+ return self.get_black_score() > self.get_white_score()
+
+ def is_equal(self):
+ return self.get_white_score() == self.get_black_score()
+
+ def __str__(self):
+ return self._fen
+
+ def __len__(self):
+ return len(self._chessboard)
+
+ def __getitem__(self, key):
+ return self._chessboard[key] if key in self._chessboard else None
+
+ def __get_score(self, allowed):
+ figures = []
+ for figure in self._chessboard.values():
+ if figure in allowed:
+ figures.append(figure.casefold())
+
+ return ChessScore(figures)
+
+ def __is_valid_kings_position(self, white_king_position, black_king_position):
+ black_king_col, black_king_row = [*black_king_position]
+ forbidden_cols = [chr(ord(black_king_col) - 1), black_king_col, chr(ord(black_king_col) + 1)]
+ forbidden_rows = [str(int(black_king_row) - 1), black_king_row, str(int(black_king_row) + 1)]
+ forbidden_positions = [''.join(pair) for pair in list(itertools.product(forbidden_cols, forbidden_rows))]
+
+ if(white_king_position in forbidden_positions):
+ raise ChessException("kings")
+
+ def __is_valid_kings_count(self, white_kings_count, black_kings_count):
+ if(white_kings_count != 1 or black_kings_count != 1):
+ raise ChessException("kings")
+
+
+class ChessScore:
+
+ _figure_points = {
+ 'r': 5,
+ 'n': 3,
+ 'b': 3,
+ 'q': 9,
+ 'k': 4,
+ 'p': 1,
+ }
+
+ def __init__(self, figures):
+ self._score = 0
+ for figure in figures:
+ self._score += self._figure_points[figure.casefold()]
+
+ def __int__(self):
+ return self._score
+
+ def __lt__(self, other):
+ return self._score < other._score
+
+ def __le__(self, other):
+ return self._score <= other._score
+
+ def __eq__(self, other):
+ return self._score == other._score
+
+ def __nq__(self, other):
+ return self._score != other._score
+
+ def __gt__(self, other):
+ return self._score > other._score
+
+ def __add__(self, other):
+ return self._score + other._score
+
+ def __sub__(self, other):
+ return self._score - other._score

Рая обнови решението на 29.11.2022 16:25 (преди над 1 година)

import itertools
class ChessException(Exception):
+ pass
- def __init__(self, message):
- self._message = message
- super().__init__(message)
-
class ChessPosition:
def __init__(self, fen):
self._fen = fen
self._chessboard = {}
chessboard_rows = fen.split('/')
chessboard_rows.reverse()
pawn_invalid_position = False
white_kings_count = 0
black_kings_count = 0
for row_number, row in enumerate(chessboard_rows, start=1):
col = 'A'
for figure in row:
increment_col_by = 1
- if(figure.isdigit()):
+ if figure.isdigit():
increment_col_by = int(figure)
else:
position = col + str(row_number)
self._chessboard[position] = figure
- if(row_number in [1, 8] and figure.casefold() == 'p'):
+ if row_number in [1, 8] and figure.casefold() == 'p':
pawn_invalid_position = True
- if(figure == 'k'):
+ if figure == 'k':
black_kings_count += 1
black_king_position = position
- if(figure == 'K'):
+ if figure == 'K':
white_kings_count += 1
white_king_position = position
col = chr(ord(col) + increment_col_by)
- self.__is_valid_kings_count(white_kings_count, black_kings_count)
- self.__is_valid_kings_position(white_king_position, black_king_position)
+ self._validate_kings_count(white_kings_count, black_kings_count)
+ self._validate_kings_position(white_king_position, black_king_position)
- if(pawn_invalid_position):
+ if pawn_invalid_position:
raise ChessException("pawns")
def get_white_score(self):
allowed = {"R", "B", "K", "N", "Q", "P"}
- return self.__get_score(allowed)
+ return self._get_score(allowed)
def get_black_score(self):
allowed = {"r", "b", "k", "n", "q", "p"}
- return self.__get_score(allowed)
+ return self._get_score(allowed)
def white_is_winning(self):
return self.get_white_score() > self.get_black_score()
def black_is_winning(self):
return self.get_black_score() > self.get_white_score()
def is_equal(self):
return self.get_white_score() == self.get_black_score()
def __str__(self):
return self._fen
def __len__(self):
return len(self._chessboard)
def __getitem__(self, key):
return self._chessboard[key] if key in self._chessboard else None
- def __get_score(self, allowed):
+ def _get_score(self, allowed):
figures = []
for figure in self._chessboard.values():
if figure in allowed:
figures.append(figure.casefold())
return ChessScore(figures)
- def __is_valid_kings_position(self, white_king_position, black_king_position):
+ def _validate_kings_position(self, white_king_position, black_king_position):
black_king_col, black_king_row = [*black_king_position]
forbidden_cols = [chr(ord(black_king_col) - 1), black_king_col, chr(ord(black_king_col) + 1)]
forbidden_rows = [str(int(black_king_row) - 1), black_king_row, str(int(black_king_row) + 1)]
forbidden_positions = [''.join(pair) for pair in list(itertools.product(forbidden_cols, forbidden_rows))]
- if(white_king_position in forbidden_positions):
+ if white_king_position in forbidden_positions:
raise ChessException("kings")
- def __is_valid_kings_count(self, white_kings_count, black_kings_count):
- if(white_kings_count != 1 or black_kings_count != 1):
+ def _validate_kings_count(self, white_kings_count, black_kings_count):
+ if white_kings_count != 1 or black_kings_count != 1:
raise ChessException("kings")
class ChessScore:
_figure_points = {
'r': 5,
'n': 3,
'b': 3,
'q': 9,
'k': 4,
'p': 1,
}
def __init__(self, figures):
self._score = 0
for figure in figures:
self._score += self._figure_points[figure.casefold()]
def __int__(self):
return self._score
def __lt__(self, other):
return self._score < other._score
def __le__(self, other):
return self._score <= other._score
def __eq__(self, other):
return self._score == other._score
def __nq__(self, other):
return self._score != other._score
def __gt__(self, other):
return self._score > other._score
def __add__(self, other):
return self._score + other._score
def __sub__(self, other):
return self._score - other._score