Put PlayingCardLibrary in separate project

PlayCardsLibrary/PlayCardsLibrary.csproj

@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

PlayCardsLibrary/PlayingCards.cs

@@ -0,0 +1,77 @@
+namespace PlayingCardsLibrary
+{
+    public enum Suit { Spades, Clubs, Diamonds, Hearts }
+
+    public enum PictureCard { Jack = 1, Queen, King, Ace }
+
+    public class Card
+    {
+        public string Value;
+        public Suit Suit;
+        public string NamedValue => Value + " of " + Suit;
+        public bool IsPicture => Enum.IsDefined(typeof(PictureCard), Value);
+        public bool IsNumber => !Enum.IsDefined(typeof(PictureCard), Value);
+        public bool IsBlack  => (Enum.GetName(Suit) == "Spades" || Enum.GetName(Suit) == "Clubs");
+        public bool IsRed => (Enum.GetName(Suit) == "Diamonds" || Enum.GetName(Suit) == "Hearts");
+    }
+
+    public class Deck
+    {
+        public static List<Card> Cards = new();
+        public static void Enumerate()
+        {
+            foreach (Suit suit in Enum.GetValues(typeof(Suit)))
+            {
+                // Add number cards
+                for (int i = 2; i <= 10; i++)
+                {
+                    Cards.Add(new Card()
+                    {
+                        Value = i.ToString(),
+                        Suit = suit
+                    });
+                }
+
+                // Add picture cards
+                foreach (PictureCard pictureCard in Enum.GetValues(typeof(PictureCard)))
+                {
+                    Cards.Add(new Card()
+                    {
+                        Value = Enum.GetName(pictureCard),
+                        Suit = suit
+                    });
+                }
+            }
+        }
+
+        private static Random rng = new();
+        public static void Shuffle()
+        {
+            Cards = Cards.OrderBy(a => rng.Next()).ToList();
+        }
+    }
+
+    public class Actions
+    {
+        public static bool MoveCard(List<Card> From, List<Card> To, Card card = null)
+        {
+            if (From.Count() == 0)
+            {
+                return false; // No cards available to move
+            }
+
+            if (card is null)
+            {
+                card = From.FirstOrDefault(); // FIFO
+            }
+
+            if (From.Contains(card) && !To.Contains(card))
+            {
+                To.Add(card);
+                From.Remove(card);
+                return true;
+            }
+            return false; // If we're here, something went bang
+        }
+    }
+}