From 2c421727e5a05f027a31e6935a6c7ec3e04e32d5 Mon Sep 17 00:00:00 2001
From: Brennen Raimer <brennen.raimer@gmail.com>
Date: Fri, 10 Apr 2020 16:23:34 -0400
Subject: [PATCH] add Hand and NullCollections

---
 BearOnline/cards/collections/__init__.py      |  6 ++++-
 BearOnline/cards/collections/_hand.py         |  6 +++++
 .../cards/collections/_nullcollection.py      | 26 +++++++++++++++++++
 3 files changed, 37 insertions(+), 1 deletion(-)
 create mode 100644 BearOnline/cards/collections/_hand.py
 create mode 100644 BearOnline/cards/collections/_nullcollection.py

diff --git a/BearOnline/cards/collections/__init__.py b/BearOnline/cards/collections/__init__.py
index 8b13789..5b08f36 100644
--- a/BearOnline/cards/collections/__init__.py
+++ b/BearOnline/cards/collections/__init__.py
@@ -1 +1,5 @@
-
+from ._cardcollection import CardCollection
+from ._deck import Deck
+from ._playingcarddeck import PlayingCardDeck
+from ._nullcollection import NullDeck
+from ._hand import Hand
diff --git a/BearOnline/cards/collections/_hand.py b/BearOnline/cards/collections/_hand.py
new file mode 100644
index 0000000..dfffbd2
--- /dev/null
+++ b/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)
+        
\ No newline at end of file
diff --git a/BearOnline/cards/collections/_nullcollection.py b/BearOnline/cards/collections/_nullcollection.py
new file mode 100644
index 0000000..5523e0b
--- /dev/null
+++ b/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")
\ No newline at end of file