update .gitignore

implemented concrete PlayingCard class

.gitignore

@@ -638,6 +638,7 @@ DerivedData/
 # Icon must end with two \r
 Icon
 
+
 # Thumbnails
 ._*
 
@@ -683,3 +684,4 @@ $RECYCLE.BIN/
 # Windows shortcuts
 *.lnk
 
+.vscode/settings.json

BearOnline/cards/__init__.py

@@ -0,0 +1,2 @@
+from ._card import Card
+from ._playingcard import PlayingCard

BearOnline/cards/_card.py

@@ -0,0 +1,25 @@
+import abc
+from abc import ABC
+from functools import total_ordering
+
+@total_ordering
+class Card(ABC):
+    def __init__(self, rank, suit):
+        self._rank = rank
+        self._suit = suit
+
+    @abc.abstractmethod
+    def __lt__(self, other):
+        pass
+    
+    @abc.abstractmethod
+    def __eq__(self, other):
+        pass
+
+    @property
+    def rank(self):
+        return self._rank
+
+    @property
+    def suit(self):
+        return self._suit

BearOnline/cards/_playingcard.py

@@ -0,0 +1,65 @@
+from itertools import chain
+
+from . import Card
+
+
+class PlayingCard(Card):
+
+    # internal class attributes for a playing card including valid suits and ranks
+    suits = {"SPADES": "BLACK", "CLUBS": "BLACK",
+              "HEARTS": "RED", "DIAMONDS": "RED"}
+
+    ranks = {rank[0].upper() if not rank.isnumeric() else rank: rank.upper() for rank in ["ace"]+[str(i)
+                                                                                                   for i in range(2, 11)] + ["jack", "queen", "king"]}
+
+    # assign an absolute numeric value to each rank for easy compairison.  Ace is 0 to make it high/low
+    _values = {rank: value for value, rank in enumerate(ranks.keys())}
+
+    def __init__(self, rank, suit):
+        # do some validation of rank and suit
+        if not isinstance(rank, str):
+            try:
+                if str(rank).isnumeric():
+                    rank = str(rank)
+                else:
+                    raise ValueError
+            except ValueError:
+                raise ValueError(f"Rank should be a string")
+
+        if not isinstance(suit, str):
+            raise TypeError("Suit should be a string.")
+
+        if not suit.lower().strip() in self.suits.keys():
+            raise ValueError(
+                f"'{suit.capitalize()}' is not a valid suit in a standard playing card deck")
+
+        if not rank.upper() in chain(self.ranks.keys(), self.ranks.values()):
+            raise IndexError(
+                f"'{rank.capitalize()}' is out of the range of valid playing card ranks")
+
+        # initialize the class and store its color
+        super().__init__(rank.upper(), suit.upper())
+        self._color = self.suits[suit]
+
+    # define __lt__ and __eq__ (< and =) as required by abstract Card class to take advantage of total ordering of Card
+    def __eq__(self, other):
+        if not isinstance(other, PlayingCard) or issubclass(other, PlayingCard):
+            raise NotImplementedError(f"Comparison of {type(self).__name__} to {type(other).__name__} is not supported")
+        return self._values[self.rank] == self._values[other.rank]
+
+    def __lt__(self, other):
+        if not isinstance(other, PlayingCard) or issubclass(other, PlayingCard):
+            raise NotImplementedError(f"Comparison of {type(self).__name__} to {type(other).__name__} is not supported")
+        # since Ace is 0, it will always pass one of these two conditions so it is always less than
+        return (self._values[self.rank] < self._values[other.rank]) or (-1 * self._values[self.rank] > -1 * self._values[other.rank])
+
+    # the total ordering of Card won't get __gt__ (>) right because it's not equivalent to not __lt__ because of Ace, so explicitly define it
+    def __gt__(self, other):
+        if not isinstance(other, PlayingCard) or issubclass(other, PlayingCard):
+            raise NotImplementedError(f"Comparison of {type(self).__name__} to {type(other).__name__} is not supported")
+        # since Ace is 0, it will always pass one of these two conditions so it is always greater than
+        return (self._values[self.rank] > self._values[other.rank]) or (-1 * self._values[self.rank] < -1 * self._values[other.rank])
+
+    @property
+    def color(self):
+        return self._color

BearOnline/cards/collections/__init__.py

@@ -0,0 +1,5 @@
+from ._cardcollection import CardCollection
+from ._deck import Deck
+from ._playingcarddeck import PlayingCardDeck
+from ._nullcollection import NullDeck
+from ._hand import Hand

BearOnline/cards/collections/_cardcollection.py

@@ -0,0 +1,10 @@
+from collections import deque
+
+from .. import Card
+
+class CardCollection(deque):
+    def __init__(self, iterable, maxlen=None):
+        if not len(iterable) == 0 or all([isinstance(Card, item) for item in iterable]):
+            raise TypeError("CardCollections must only contain Cards")
+        else:
+            super().__init__(iterable, maxlen)

BearOnline/cards/collections/_deck.py

@@ -0,0 +1,34 @@
+from collections.abc import Iterable
+from itertools import cycle
+from more_itertools import random_permutation
+
+from ._cardcollection import CardCollection
+
+class Deck(CardCollection):
+    def draw(self):
+        return self.pop()
+
+    def shuffle(self):
+        shuffled = list(random_permutation(self))
+        self.clear()
+        self.extend(shuffled)
+        return self
+
+    def deal(self, card_collections, cards_per_rotation=1, max_rotations=None):
+        if not issubclass(card_collections, Iterable) or not all([issubclass(CardCollection, collection) for collection in card_collections]):
+            raise TypeError("You can only deal cards to an iterable containing CardCollections")
+
+        if max_rotations is None:
+            rotation = cycle(card_collections)
+        elif isinstance(max_rotations, int):
+            rotation = card_collections * max_rotations
+        else:
+            raise TypeError("Max rotations should be a positive integer")
+
+        for card_collection in rotation:
+            try:
+                for _ in range(cards_per_rotation):
+                    card_collection.append(self.draw())
+            except IndexError:
+                break
+        

BearOnline/cards/collections/_hand.py

@@ -0,0 +1,6 @@
+from ._cardcollection import CardCollection
+
+class Hand(CardCollection):
+    def __init__(self, max_handsize=None):
+        super().__init__([], max_handsize)
+        

BearOnline/cards/collections/_nullcollection.py

@@ -0,0 +1,26 @@
+from ._deck import Deck
+
+
+class NullDeck(Deck):
+    def __init__(self):
+        """Initializes an empty deck that can never contain cards.  Useful as a placeholder to prevent cards from being played to a space.
+        """
+        super().__init__([], 0)
+
+    def __add__(self, *args, **kwargs):
+        raise NotImplementedError("Cards can not be added to a NullDeck")
+
+    def __iadd__(self, *args, **kwargs):
+        raise NotImplementedError("Cards can not be added to a NullDeck")
+
+    def append(self, *args, **kwargs):
+        raise NotImplementedError("Cards can not be added to a NullDeck")
+
+    def appendleft(self, *args, **kwargs):
+        raise NotImplementedError("Cards can not be added to a NullDeck")
+
+    def extend(self, *args, **kwargs):
+        raise NotImplementedError("Cards can not be added to a NullDeck")
+
+    def extendleft(self, *args, **kwargs):
+        raise NotImplementedError("Cards can not be added to a NullDeck")

BearOnline/cards/collections/_playingcarddeck.py

@@ -0,0 +1,9 @@
+from itertools import product, starmap
+from ._deck import Deck
+from .. import PlayingCard
+
+class PlayingCardDeck(Deck):
+    def __init__(self):
+        #initialize the deck with the product of the ranks and suits
+        super().__init__(list(starmap(PlayingCard, product(PlayingCard.ranks.keys(), PlayingCard.suits.keys()))))
+        

BearOnline/game/_player.py

@@ -0,0 +1,85 @@
+from collections.abc import Iterable
+from functools import singledispatch
+
+from ..cards.collections import Hand
+from ..cards import Card
+
+class Player(object):
+
+    valid_roles = {"dealer","host","guest"}
+
+    def __init__(self, name, roles={}):
+        self._name = name
+        self._hand = Hand()
+        self._score = 0
+        if not roles:
+            roles = {}
+        elif isinstance(roles, str):
+            if roles in self.valid_roles:
+                roles = {roles}
+            else:
+                raise ValueError(f"{roles} is not a valid role.")
+        elif isinstance(roles, Iterable):
+            if all([role in self.valid_roles for role in roles]):
+                self._roles = set(roles)
+            else:
+                raise ValueError(f"{', '.join(set(roles) - self.valid_roles)} are not valid roles")
+        else:
+            raise TypeError("Role should be a string or iterable")
+
+    @singledispatch
+    def __add__(self, other):
+        pass
+
+    @__add__.register
+    def _(self, other: int):
+        self.score += other
+
+    @__add__.register
+    def _(self, other: Card):
+        self._hand.append(other)
+    
+    @property
+    def hand(self):
+        return self._hand
+
+    @property
+    def name(self):
+        return self._name
+
+    @name.setter
+    def name(self, value):
+        self._name = value
+
+    @property
+    def score(self):
+        return self._score
+
+    @score.setter
+    def score(self, value):
+        self._score = value
+
+    @property
+    def roles(self):
+        return self._roles
+
+    @roles.setter
+    def roles(self, value):
+        if not value in self.valid_roles:
+            raise ValueError(f"Invalid Player role {value}")
+
+        if (value == "host" or "host" in value) and "host" in self._roles:
+            raise RuntimeError("Once a player is the host, they are the host forever")
+
+        if isinstance(value, str):
+            self._roles ^= set((value,))
+        elif isinstance(Iterable, value):
+            self._roles ^= set(value)
+        else:
+            raise TypeError("Invalid role type")
+
+    @property
+    def cards_in_hand(self):
+        return len(self._hand)
+
+