Implement tab list display name update

Packet 0x2D with action 0x03

MinecraftClient/McTcpClient.cs

@@ -597,6 +597,21 @@ namespace MinecraftClient
             }
         }
 
+        /// <summary>
+        /// Get an online player by UUID
+        /// </summary>
+        /// <param name="uuid">Player UUID</param>
+        /// <returns>The player, or NULL if not found</returns>
+        public PlayerInfo GetPlayer(Guid uuid)
+        {
+            lock (onlinePlayers)
+            {
+                if (onlinePlayers.ContainsKey(uuid))
+                    return onlinePlayers[uuid];
+                return null;
+            }
+        }
+
         /// <summary>
         /// Registers the given plugin channel for the given bot.
         /// </summary>

MinecraftClient/Protocol/Handlers/Protocol18.cs

@@ -447,8 +447,17 @@ namespace MinecraftClient.Protocol.Handlers
                                     readNextVarInt(packetData);
                                     break;
                                 case 0x03: //Update display name
-                                    if (readNextBool(packetData))
+                                    bool hasDisplayName = readNextBool(packetData);
-                                        readNextString(packetData);
+                                    string newDisplayName = null;
+                                    if (hasDisplayName)
+                                        newDisplayName = readNextString(packetData);
+                                    PlayerInfo player = handler.GetPlayer(uuid);
+                                    if (player != null)
+                                    {
+                                        if (hasDisplayName)
+                                            player.DisplayName = newDisplayName;
+                                        else player.DisplayName = player.Name;
+                                    }
                                     break;
                                 case 0x04: //Player Leave
                                     handler.OnPlayerLeave(uuid);

MinecraftClient/Protocol/IMinecraftComHandler.cs

@@ -23,6 +23,7 @@ namespace MinecraftClient.Protocol
         string GetUserUUID();
         string GetSessionID();
         PlayerInfo[] GetOnlinePlayers();
+        PlayerInfo GetPlayer(Guid uuid);
         Location GetCurrentLocation();
         World GetWorld();
 

MinecraftClient/Protocol/PlayerInfo.cs

@@ -8,15 +8,14 @@ namespace MinecraftClient.Protocol
     /// <summary>
     /// Information about a player (player tab list item)
     /// </summary>
-    public struct PlayerInfo : IComparable<PlayerInfo>
+    public class PlayerInfo : IComparable<PlayerInfo>
     {
         private Guid _uuid;
         private string _name;
-        private string _displayName;
 
         public Guid UUID { get { return _uuid; } }
         public string Name { get { return _name; } }
-        public string DisplayName { get { return _displayName; } }
+        public string DisplayName { get; set; }
 
         /// <summary>
         /// Create a new PlayerInfo structure
@@ -27,7 +26,7 @@ namespace MinecraftClient.Protocol
         {
             _uuid = uuid;
             _name = name;
-            _displayName = name;
+            DisplayName = name;
         }
 
         /// <summary>
@@ -39,7 +38,7 @@ namespace MinecraftClient.Protocol
         public PlayerInfo(Guid uuid, string name, string displayName)
             : this(uuid, name)
         {
-            _displayName = displayName;
+            DisplayName = displayName;
         }
 
         /// <summary>