Fix FileFormats/bin gitignore

.gitignore

@@ -24,6 +24,8 @@ bld/
 [Oo]bj/
 [Ll]og/
 
+!Lotd/FileFormats/[Bb]in
+
 # Visual Studio 2015 cache/options directory
 .vs/
 # Uncomment if you have tasks that create the project's static files in wwwroot

Lotd/FileFormats/bin/CardLimits.cs

@@ -0,0 +1,59 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+
+namespace Lotd.FileFormats
+{
+    /// <summary>
+    /// Holds limited / banned card information (pd_limits.bin)
+    /// </summary>
+    public class CardLimits : FileData
+    {
+        public HashSet<short> Forbidden { get; private set; }
+        public HashSet<short> Limited { get; private set; }
+        public HashSet<short> SemiLimited { get; private set; }
+
+        public CardLimits()
+        {
+            Forbidden = new HashSet<short>();
+            Limited = new HashSet<short>();
+            SemiLimited = new HashSet<short>();
+        }
+
+        public override void Load(BinaryReader reader, long length)
+        {
+            ReadCardIds(reader, Forbidden);
+            ReadCardIds(reader, Limited);
+            ReadCardIds(reader, SemiLimited);
+        }
+
+        public override void Save(BinaryWriter writer)
+        {
+            WriteCardIds(writer, Forbidden);
+            WriteCardIds(writer, Limited);
+            WriteCardIds(writer, SemiLimited);
+        }
+
+        private void ReadCardIds(BinaryReader reader, HashSet<short> cardIds)
+        {
+            cardIds.Clear();
+
+            short count = reader.ReadInt16();
+            for (int i = 0; i < count; i++)
+            {
+                cardIds.Add(reader.ReadInt16());
+            }
+        }
+
+        private void WriteCardIds(BinaryWriter writer, HashSet<short> cardIds)
+        {
+            writer.Write((short)cardIds.Count);
+            foreach (ushort cardId in cardIds)
+            {
+                writer.Write(cardId);
+            }
+        }
+    }
+}