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#!/usr/bin/env python
class User:
def __init__(self, bag):
''' Initialize the Computer class.
@param bag: the bag with letters.
'''
self.__letters = bag.remove_letters()
def get_letters(self):
''' Return the list of Letters.
@return: the list of elements.
'''
return self.__letters
def letters_length(self):
''' Return the length of the list of Letters.
@return: the number of elements.
'''
return len(self.__letters)
def get_letter_at(self, index):
''' Get the letter at the specified index of the list.
@param index: the index
@return: the Letter
'''
return self.__letter[index]
def add_letter(self, letter):
''' Add a new Letter to the list of Letters.
@param letter: the new Letter.
'''
self.__letters.append(letter)
def swap_letters(self, bag, letters):
''' Return the given list of Letters to the bag, and take
the same amount from the bag.
@param bag: the bag
@param letters: the list of Letters.
@return: True if it is possible otherwise False.
'''
from_bag = bag.remove_letters(len(letters))
if from_bag == -1:
return False
elif len(from_bag) == len(letters):
bag.add_letters(letters)
for l in letters:
self.get_letters().remove(l)
for l in from_bag:
self.add_letter(l)
return True
else:
bag.add_letters(from_bag)
return False
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