feat: player propeties

.github/workflows/main.yml

@@ -49,7 +49,7 @@ jobs:
       - name: Setup dotnet
         uses: actions/setup-dotnet@v1
         with:
-          dotnet-version: 8.0.x
+          dotnet-version: 7.0.x
       - name: Build
         shell: bash
         run: |

Ragon.Client/Sources/Entity/RagonEntity.cs

@@ -55,7 +55,6 @@ namespace Ragon.Client
     public ushort Id { get; private set; }
     public ushort Type { get; private set; }
     
-
     public RagonAuthority Authority { get; private set; }
     public RagonPlayer Owner { get; private set; }
     public RagonEntityState State { get; private set; }

Ragon.Client/Sources/Handler/PlayerUserDataHandler.cs

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2024 Eduard Kargin <kargin.eduard@gmail.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+using Ragon.Protocol;
+
+namespace Ragon.Client
+{
+
+  internal class PlayerUserDataHandler: IHandler
+  {
+    private RagonPlayerCache _playerCache;
+    private RagonListenerList _listenerList;
+
+    public PlayerUserDataHandler(
+      RagonPlayerCache playerCache,
+      RagonListenerList listenerList
+    )
+    {
+      _playerCache = playerCache;
+      _listenerList = listenerList;
+    }
+    public void Handle(RagonBuffer reader)
+    {
+      var playerPeerId = reader.ReadUShort();
+      var player = _playerCache.GetPlayerByPeer(playerPeerId);
+
+      if (player != null)
+      {
+        player.UserData.Read(reader);
+        
+        _listenerList.OnPlayerUserData(player);
+        
+        return;
+      }
+      
+      RagonLog.Warn("Received user data for unknown player.");
+    }
+  }
+}

Ragon.Client/Sources/Handler/RoomEventHandler.cs

@@ -50,6 +50,6 @@ public class RoomEventHandler : IHandler
     if (player.IsLocal && executionMode == RagonReplicationMode.LocalAndServer)
       return;
 
-    _client.Room.Event(eventCode, player, buffer);
+    _client.Room.HandleEvent(eventCode, player, buffer);
   }
 }

Ragon.Client/Sources/Handler/RoomUserDataHandler.cs

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2024 Eduard Kargin <kargin.eduard@gmail.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+using Ragon.Protocol;
+
+namespace Ragon.Client
+{
+  internal class RoomUserDataHandler : IHandler
+  {
+    private readonly RagonClient _client;
+    private readonly RagonListenerList _listenerList;
+
+    public RoomUserDataHandler(RagonClient client, RagonListenerList listenerList)
+    {
+      _client = client;
+      _listenerList = listenerList;
+    }
+
+    public void Handle(RagonBuffer reader)
+    {
+      _client.Room?.HandleUserData(reader);
+      _listenerList.OnRoomUserData();
+    }
+  }
+}

Ragon.Client/Sources/IUserData.cs

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2024 Eduard Kargin <kargin.eduard@gmail.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+using Ragon.Protocol;
+
+namespace Ragon.Client;
+
+public interface IUserData
+{
+  public byte[] this[string key] { get; set; }
+  bool Dirty { get; }
+  void Read(RagonBuffer buffer);
+  void Write(RagonBuffer buffer);
+}

Ragon.Client/Sources/Listener/IRagonListener.cs

@@ -25,7 +25,10 @@ namespace Ragon.Client
     IRagonSceneListener, 
     IRagonOwnershipChangedListener,
     IRagonPlayerJoinListener, 
-    IRagonPlayerLeftListener
+    IRagonPlayerLeftListener,
+    IRagonRoomListListener,
+    IRagonRoomUserDataListener,
+    IRagonPlayerUserDataListener
   {
     
   }

Ragon.Client/Sources/Listener/IRagonPlayerUserDataListener.cs

@@ -0,0 +1,22 @@
+/*
+ * Copyright 2023 Eduard Kargin <kargin.eduard@gmail.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Ragon.Client;
+
+public interface IRagonPlayerUserDataListener
+{
+  void OnPlayerUserDataUpdated(RagonClient client, RagonPlayer player);
+}

Ragon.Client/Sources/Listener/IRagonRoomUserDataListener.cs

@@ -0,0 +1,6 @@
+namespace Ragon.Client;
+
+public interface IRagonRoomUserDataListener
+{
+  public void OnUserDataUpdated(RagonClient client);
+}

Ragon.Client/Sources/RagonClient.cs

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023 Eduard Kargin <kargin.eduard@gmail.com>
+ * Copyright 2023-2024 Eduard Kargin <kargin.eduard@gmail.com>
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -98,31 +98,37 @@ namespace Ragon.Client
 
       _writeBuffer = new RagonBuffer();
       _readBuffer = new RagonBuffer();
-      _session = new RagonSession(this, _writeBuffer);
-
       _playerCache = new RagonPlayerCache();
+      _session = new RagonSession(this, _writeBuffer);
       _entityCache = new RagonEntityCache(this, _playerCache, _sceneCollector);
 
       _handlers = new IHandler[byte.MaxValue];
       _handlers[(byte)RagonOperation.AUTHORIZED_SUCCESS] = new AuthorizeSuccessHandler(this, _listeners);
       _handlers[(byte)RagonOperation.AUTHORIZED_FAILED] = new AuthorizeFailedHandler(_listeners);
-      _handlers[(byte)RagonOperation.JOIN_SUCCESS] = new JoinSuccessHandler(this, _listeners, _playerCache, _entityCache);
+      _handlers[(byte)RagonOperation.JOIN_SUCCESS] =
+        new JoinSuccessHandler(this, _listeners, _playerCache, _entityCache);
       _handlers[(byte)RagonOperation.JOIN_FAILED] = new JoinFailedHandler(_listeners);
       _handlers[(byte)RagonOperation.LEAVE_ROOM] = new LeaveRoomHandler(this, _listeners, _entityCache);
-      _handlers[(byte)RagonOperation.OWNERSHIP_ROOM_CHANGED] = new OwnershipRoomHandler(_listeners, _playerCache, _entityCache);
-      _handlers[(byte)RagonOperation.OWNERSHIP_ENTITY_CHANGED] = new EntityOwnershipHandler(_listeners, _playerCache, _entityCache);
+      _handlers[(byte)RagonOperation.OWNERSHIP_ROOM_CHANGED] =
+        new OwnershipRoomHandler(_listeners, _playerCache, _entityCache);
+      _handlers[(byte)RagonOperation.OWNERSHIP_ENTITY_CHANGED] =
+        new EntityOwnershipHandler(_listeners, _playerCache, _entityCache);
       _handlers[(byte)RagonOperation.PLAYER_JOINED] = new PlayerJoinHandler(_playerCache, _listeners);
       _handlers[(byte)RagonOperation.PLAYER_LEAVED] = new PlayerLeftHandler(_entityCache, _playerCache, _listeners);
       _handlers[(byte)RagonOperation.LOAD_SCENE] = new SceneLoadHandler(this, _listeners);
-      _handlers[(byte)RagonOperation.CREATE_ENTITY] = new EntityCreateHandler(this, _playerCache, _entityCache, _entityListener);
+      _handlers[(byte)RagonOperation.CREATE_ENTITY] =
+        new EntityCreateHandler(this, _playerCache, _entityCache, _entityListener);
       _handlers[(byte)RagonOperation.REMOVE_ENTITY] = new EntityRemoveHandler(_entityCache);
       _handlers[(byte)RagonOperation.REPLICATE_ENTITY_STATE] = new StateEntityHandler(_entityCache);
       _handlers[(byte)RagonOperation.REPLICATE_ENTITY_EVENT] = new EntityEventHandler(_playerCache, _entityCache);
       _handlers[(byte)RagonOperation.REPLICATE_ROOM_EVENT] = new RoomEventHandler(this, _playerCache);
-      _handlers[(byte)RagonOperation.SNAPSHOT] = new SnapshotHandler(this, _listeners, _entityCache, _playerCache, _entityListener);
+      _handlers[(byte)RagonOperation.SNAPSHOT] =
+        new SnapshotHandler(this, _listeners, _entityCache, _playerCache, _entityListener);
       _handlers[(byte)RagonOperation.TIMESTAMP_SYNCHRONIZATION] = new TimestampHandler(this);
       _handlers[(byte)RagonOperation.REPLICATE_RAW_DATA] = new RoomDataHandler(_playerCache, _listeners);
       _handlers[(byte)RagonOperation.ROOM_LIST_UPDATED] = new RoomListHandler(_session, _listeners);
+      _handlers[(byte)RagonOperation.ROOM_DATA_UPDATED] = new RoomUserDataHandler(this, _listeners);
+      _handlers[(byte)RagonOperation.PLAYER_DATA_UPDATED] = new PlayerUserDataHandler(_playerCache, _listeners);
 
       var protocolRaw = RagonVersion.Parse(protocol);
       _connection.Connect(address, port, protocolRaw);
@@ -148,6 +154,8 @@ namespace Ragon.Client
           _entityCache.WriteState(_writeBuffer);
 
           SendTimestamp();
+          SendRoomUserData();
+          SendPlayerUserData();
         }
 
         _stats.Update(_connection.BytesSent, _connection.BytesReceived, _connection.Ping, dt);
@@ -164,6 +172,7 @@ namespace Ragon.Client
         _status = RagonStatus.DISCONNECTED;
         _connection.Disconnect();
       }
+
       _connection.Dispose();
     }
 
@@ -180,6 +189,8 @@ namespace Ragon.Client
     public void AddListener(IRagonSceneRequestListener listener) => _listeners.Add(listener);
     public void AddListener(IRagonDataListener listener) => _listeners.Add(listener);
     public void AddListener(IRagonRoomListListener listener) => _listeners.Add(listener);
+    public void AddListener(IRagonPlayerUserDataListener listener) => _listeners.Add(listener);
+    public void AddListener(IRagonRoomUserDataListener listener) => _listeners.Add(listener);
     public void RemoveListener(IRagonListener listener) => _listeners.Remove(listener);
     public void RemoveListener(IRagonAuthorizationListener listener) => _listeners.Remove(listener);
     public void RemoveListener(IRagonConnectionListener listener) => _listeners.Remove(listener);
@@ -193,6 +204,8 @@ namespace Ragon.Client
     public void RemoveListener(IRagonSceneRequestListener listener) => _listeners.Remove(listener);
     public void RemoveListener(IRagonDataListener listener) => _listeners.Remove(listener);
     public void RemoveListener(IRagonRoomListListener listener) => _listeners.Remove(listener);
+    public void RemoveListener(IRagonRoomUserDataListener listener) => _listeners.Remove(listener);
+    public void RemoveListener(IRagonPlayerUserDataListener listener) => _listeners.Remove(listener);
 
     #endregion
 
@@ -232,6 +245,38 @@ namespace Ragon.Client
       _writeBuffer.Write(value.Int1, 32);
     }
 
+    private void SendRoomUserData()
+    {
+      if (_room == null) return;
+
+      var props = _room.UserData;
+      if (!props.Dirty) return;
+
+      _writeBuffer.Clear();
+      _writeBuffer.WriteOperation(RagonOperation.ROOM_DATA_UPDATED);
+
+      props.Write(_writeBuffer);
+
+      var sendData = _writeBuffer.ToArray();
+      _connection.Reliable.Send(sendData);
+    }
+
+    private void SendPlayerUserData()
+    {
+      if (_playerCache.Local == null) return;
+
+      var props = _playerCache.Local.UserData;
+      if (!props.Dirty) return;
+
+      _writeBuffer.Clear();
+      _writeBuffer.WriteOperation(RagonOperation.PLAYER_DATA_UPDATED);
+
+      props.Write(_writeBuffer);
+
+      var sendData = _writeBuffer.ToArray();
+      _connection.Reliable.Send(sendData);
+    }
+
     private void OnConnected()
     {
       RagonLog.Trace("Connected");

Ragon.Client/Sources/RagonListenerList.cs

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023 Eduard Kargin <kargin.eduard@gmail.com>
+ * Copyright 2023-2024 Eduard Kargin <kargin.eduard@gmail.com>
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -33,6 +33,8 @@ namespace Ragon.Client
     private readonly List<IRagonPlayerLeftListener> _playerLeftListeners = new();
     private readonly List<IRagonDataListener> _dataListeners = new();
     private readonly List<IRagonRoomListListener> _roomListListeners = new();
+    private readonly List<IRagonRoomUserDataListener> _roomUserDataListeners = new();
+    private readonly List<IRagonPlayerUserDataListener> _playerUserDataListeners = new();
     private readonly List<Action> _delayedActions = new();
 
     public RagonListenerList(RagonClient client)
@@ -51,6 +53,8 @@ namespace Ragon.Client
       _ownershipChangedListeners.Add(listener);
       _playerJoinListeners.Add(listener);
       _playerLeftListeners.Add(listener);
+      _roomUserDataListeners.Add(listener);
+      _playerUserDataListeners.Add(listener);
     }
 
     public void Remove(IRagonListener listener)
@@ -66,6 +70,8 @@ namespace Ragon.Client
         _ownershipChangedListeners.Remove(listener);
         _playerJoinListeners.Remove(listener);
         _playerLeftListeners.Remove(listener);
+        _roomUserDataListeners.Remove(listener);
+        _playerUserDataListeners.Remove(listener);
       });
     }
 
@@ -137,6 +143,16 @@ namespace Ragon.Client
       _roomListListeners.Add(listener);
     }
 
+    public void Add(IRagonRoomUserDataListener listener)
+    {
+      _roomUserDataListeners.Add(listener);
+    }
+    
+    public void Add(IRagonPlayerUserDataListener listener)
+    {
+      _playerUserDataListeners.Add(listener);
+    }
+
     public void Remove(IRagonDataListener listener)
     {
       _delayedActions.Add(() => _dataListeners.Remove(listener));
@@ -197,6 +213,16 @@ namespace Ragon.Client
       _delayedActions.Add(() => _roomListListeners.Remove(listener));
     }
 
+    public void Remove(IRagonRoomUserDataListener listener)
+    {
+      _delayedActions.Add(() => _roomUserDataListeners.Remove(listener));
+    }
+    
+    public void Remove(IRagonPlayerUserDataListener listener)
+    {
+      _delayedActions.Add(() => _playerUserDataListeners.Remove(listener));
+    }
+
     public void OnAuthorizationSuccess(string playerId, string playerName, string payload)
     {
       foreach (var listener in _authorizationListeners)
@@ -280,5 +306,17 @@ namespace Ragon.Client
       foreach (var listListener in _roomListListeners)
         listListener.OnRoomListUpdate(roomInfos);
     }
+
+    public void OnRoomUserData()
+    {
+      foreach (var userDataListener in _roomUserDataListeners)
+        userDataListener.OnUserDataUpdated(_client);
+    }
+
+    public void OnPlayerUserData(RagonPlayer player)
+    {
+      foreach(var playerUserDataListener in _playerUserDataListeners)
+        playerUserDataListener.OnPlayerUserDataUpdated(_client, player);
+    }
   }
 }

Ragon.Client/Sources/RagonPlayer.cs

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023 Eduard Kargin <kargin.eduard@gmail.com>
+ * Copyright 2023-2024 Eduard Kargin <kargin.eduard@gmail.com>
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,6 +24,7 @@ namespace Ragon.Client
     public ushort PeerId { get; set; }
     public bool IsRoomOwner { get; set; }
     public bool IsLocal { get; set; }
+    public IUserData UserData { get; private set; }
     
     public RagonPlayer(ushort peerId, string playerId, string name, bool isRoomOwner, bool isLocal)
     {
@@ -32,6 +33,7 @@ namespace Ragon.Client
       IsLocal = isLocal;
       Name = name;
       Id = playerId;
+      UserData = isLocal ? new RagonUserData() : new RagonUserDataReadOnly();
     }
   }
 }

Ragon.Client/Sources/RagonPlayerCache.cs

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023 Eduard Kargin <kargin.eduard@gmail.com>
+ * Copyright 2023-2024 Eduard Kargin <kargin.eduard@gmail.com>
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

Ragon.Client/Sources/RagonRoom.cs

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023 Eduard Kargin <kargin.eduard@gmail.com>
+ * Copyright 2023-2024 Eduard Kargin <kargin.eduard@gmail.com>
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,7 +18,7 @@ using Ragon.Protocol;
 
 namespace Ragon.Client
 {
-  public class RagonRoom: IDisposable
+  public class RagonRoom : IDisposable
   {
     private class EventSubscription : IDisposable
     {
@@ -49,11 +49,12 @@ namespace Ragon.Client
 
     private delegate void OnEventDelegate(RagonPlayer player, RagonBuffer serializer);
 
-    private RagonClient _client;
-    private RagonScene _scene;
-    private RagonEntityCache _entityCache;
-    private RagonPlayerCache _playerCache;
-    private RoomParameters _parameters;
+    private readonly RagonClient _client;
+    private readonly RagonScene _scene;
+    private readonly RagonEntityCache _entityCache;
+    private readonly RagonPlayerCache _playerCache;
+    private readonly RoomParameters _parameters;
+    private readonly RagonUserData _userData;
 
     public string Id => _parameters.RoomId;
     public int MinPlayers => _parameters.Min;
@@ -63,10 +64,15 @@ namespace Ragon.Client
     public IReadOnlyList<RagonPlayer> Players => _playerCache.Players;
     public RagonPlayer Local => _playerCache.Local;
     public RagonPlayer Owner => _playerCache.Owner;
+    public RagonUserData UserData => _userData;
 
     private readonly Dictionary<int, OnEventDelegate> _events = new Dictionary<int, OnEventDelegate>();
-    private readonly Dictionary<int, List<Action<RagonPlayer, IRagonEvent>>> _localListeners = new Dictionary<int, List<Action<RagonPlayer, IRagonEvent>>>();
-    private readonly Dictionary<int, List<Action<RagonPlayer, IRagonEvent>>> _listeners = new Dictionary<int, List<Action<RagonPlayer, IRagonEvent>>>();
+
+    private readonly Dictionary<int, List<Action<RagonPlayer, IRagonEvent>>> _localListeners =
+      new Dictionary<int, List<Action<RagonPlayer, IRagonEvent>>>();
+
+    private readonly Dictionary<int, List<Action<RagonPlayer, IRagonEvent>>> _listeners =
+      new Dictionary<int, List<Action<RagonPlayer, IRagonEvent>>>();
 
     public RagonRoom(RagonClient client,
       RagonEntityCache entityCache,
@@ -79,6 +85,7 @@ namespace Ragon.Client
       _entityCache = entityCache;
       _playerCache = playerCache;
       _scene = scene;
+      _userData = new RagonUserData();
     }
 
     internal void Cleanup()
@@ -92,7 +99,7 @@ namespace Ragon.Client
       _scene.Update(sceneName);
     }
 
-    internal void Event(ushort eventCode, RagonPlayer caller, RagonBuffer buffer)
+    internal void HandleEvent(ushort eventCode, RagonPlayer caller, RagonBuffer buffer)
     {
       if (_events.TryGetValue(eventCode, out var evnt))
         evnt?.Invoke(caller, buffer);
@@ -100,6 +107,11 @@ namespace Ragon.Client
         RagonLog.Warn($"Handler event on entity {Id} with eventCode {eventCode} not defined");
     }
 
+    internal void HandleUserData(RagonBuffer buffer)
+    {
+      _userData.Read(buffer);
+    }
+    
     public IDisposable OnEvent<TEvent>(Action<RagonPlayer, TEvent> callback) where TEvent : IRagonEvent, new()
     {
       var t = new TEvent();
@@ -138,8 +150,12 @@ namespace Ragon.Client
     public void LoadScene(string sceneName) => _scene.Load(sceneName);
     public void SceneLoaded() => _scene.SceneLoaded();
 
-    public void ReplicateEvent<TEvent>(TEvent evnt, RagonTarget target, RagonReplicationMode mode) where TEvent : IRagonEvent, new() => _scene.ReplicateEvent(evnt, target, mode);
-    public void ReplicateEvent<TEvent>(TEvent evnt, RagonPlayer target, RagonReplicationMode mode) where TEvent : IRagonEvent, new() => _scene.ReplicateEvent(evnt, target, mode);
+    public void ReplicateEvent<TEvent>(TEvent evnt, RagonTarget target, RagonReplicationMode mode)
+      where TEvent : IRagonEvent, new() => _scene.ReplicateEvent(evnt, target, mode);
+
+    public void ReplicateEvent<TEvent>(TEvent evnt, RagonPlayer target, RagonReplicationMode mode)
+      where TEvent : IRagonEvent, new() => _scene.ReplicateEvent(evnt, target, mode);
+
     public void ReplicateData(byte[] data, bool reliable = false) => _scene.ReplicateData(data, reliable);
 
     public void CreateEntity(RagonEntity entity) => CreateEntity(entity, null);

Ragon.Client/Sources/RagonUserData.cs

@@ -0,0 +1,70 @@
+/*
+ * Copyright 2024 Eduard Kargin <kargin.eduard@gmail.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+using Ragon.Protocol;
+
+namespace Ragon.Client
+{
+  public class RagonUserData: IUserData
+  {
+    public byte[] this[string key]
+    {
+      get => _properties[key];
+      set
+      {
+        _properties[key] = value;
+        
+        _dirty = true;
+      }
+    }
+    public bool Dirty => _dirty;
+
+    private bool _dirty = false;
+    private readonly Dictionary<string, byte[]> _properties = new();
+    
+    public RagonUserData()
+    {
+    }
+
+    public void Read(RagonBuffer buffer)
+    {
+      _properties.Clear();
+      
+      var len = buffer.ReadUShort();
+      for (int i = 0; i < len; i++)
+      {
+        var key = buffer.ReadString();
+        var valueSize = buffer.ReadUShort();
+        var value = buffer.ReadBytes(valueSize);
+
+        _properties[key] = value;
+      }  
+    }
+
+    public void Write(RagonBuffer buffer)
+    {
+      buffer.WriteUShort((ushort)_properties.Count);
+      foreach (var property in _properties)
+      {
+        buffer.WriteString(property.Key);
+        buffer.WriteUShort((ushort) property.Value.Length);
+        buffer.WriteBytes(property.Value);
+      }
+      
+      _dirty = false;
+    }
+  }
+}

Ragon.Client/Sources/RagonUserDataReadOnly.cs

@@ -0,0 +1,65 @@
+/*
+ * Copyright 2024 Eduard Kargin <kargin.eduard@gmail.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+using Ragon.Protocol;
+
+namespace Ragon.Client;
+
+public class RagonUserDataReadOnly : IUserData
+{
+  public byte[] this[string key]
+  {
+    get => _properties[key];
+    set { }
+  }
+
+  public bool Dirty => _dirty;
+
+  private bool _dirty = false;
+  private readonly Dictionary<string, byte[]> _properties = new();
+
+  public RagonUserDataReadOnly()
+  {
+  }
+
+  public void Write(RagonBuffer buffer)
+  {
+    buffer.WriteUShort((ushort)_properties.Count);
+    foreach (var property in _properties)
+    {
+      buffer.WriteString(property.Key);
+      buffer.WriteUShort((ushort)property.Value.Length);
+      buffer.WriteBytes(property.Value);
+    }
+
+    _dirty = false;
+  }
+
+  public void Read(RagonBuffer buffer)
+  {
+    _properties.Clear();
+
+    var len = buffer.ReadUShort();
+    for (int i = 0; i < len; i++)
+    {
+      var key = buffer.ReadString();
+      var valueSize = buffer.ReadUShort();
+      var value = buffer.ReadBytes(valueSize);
+
+      _properties[key] = value;
+    }
+  }
+}

Ragon.Protocol/Sources/RagonBuffer.cs

@@ -283,6 +283,7 @@ namespace Ragon.Protocol
       _write += numBits;
     }
     
+
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public uint Read(int numBits = 16)
     {

Ragon.Protocol/Sources/RagonOperation.cs

@@ -45,5 +45,7 @@ namespace Ragon.Protocol
     TRANSFER_ENTITY_OWNERSHIP = 24,
     TIMESTAMP_SYNCHRONIZATION = 25,
     ROOM_LIST_UPDATED = 26,
+    PLAYER_DATA_UPDATED = 27,
+    ROOM_DATA_UPDATED = 28,
   }
 }

Ragon.Relay/Ragon.Relay.csproj

@@ -3,7 +3,7 @@
     <PropertyGroup>
         <OutputType>Exe</OutputType>
         <RootNamespace>Ragon.Relay</RootNamespace>
-        <TargetFramework>net8.0</TargetFramework>
+        <TargetFrameworks>net7.0;net8.0</TargetFrameworks>
     </PropertyGroup>
 
     <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">

Ragon.Relay/relay.config.json

@@ -10,6 +10,7 @@
   "limitPlayersPerRoom": 20,
   "limitRooms": 200,
   "limitBufferedEvents": 50,
+  "limitUserData": 1024,
   "webHooks":
   {
     "room-created": "http://127.0.0.1:3000/service/create-room",

Ragon.Server/Sources/Data/RagonData.cs

@@ -0,0 +1,23 @@
+using Ragon.Protocol;
+
+namespace Ragon.Server.Data;
+
+public class RagonData
+{
+  private byte[] _data;
+  public bool IsDirty { get; set; }
+  public byte[] Data
+  {
+    get => _data;
+    set
+    {
+      _data = value;
+      IsDirty = true;
+    }
+  }
+
+  public RagonData(byte[] data)
+  {
+    _data = data;
+  }
+}

Ragon.Server/Sources/Handler/AuthorizationOperation.cs

@@ -29,16 +29,19 @@ public sealed class AuthorizationOperation: BaseOperation
   private readonly RagonWebHookPlugin _webhook;
   private readonly RagonContextObserver _observer;
   private readonly RagonBuffer _writer;
+  private readonly RagonServerConfiguration _configuration;
   
   public AuthorizationOperation(
     RagonBuffer reader,
     RagonBuffer writer,
     RagonWebHookPlugin webhook,
-    RagonContextObserver observer): base(reader, writer)
+    RagonContextObserver observer,
+    RagonServerConfiguration configuration): base(reader, writer)
   {
     _webhook = webhook;
     _observer = observer;
     _writer = writer;
+    _configuration = configuration;
   }
   
   public override void Handle(RagonContext context, NetworkChannel channel)
@@ -55,7 +58,7 @@ public sealed class AuthorizationOperation: BaseOperation
       return;
     }
 
-    var configuration = context.Configuration; 
+    var configuration = _configuration; 
     var key = Reader.ReadString();
     var name = Reader.ReadString();
     var payload = Reader.ReadString();

Ragon.Server/Sources/Handler/EntityCreateOperation.cs

@@ -44,7 +44,7 @@ public sealed class EntityCreateOperation : BaseOperation
       Authority = eventAuthority,
       AttachId = attachId,
       StaticId = 0,
-      BufferedEvents = context.Configuration.LimitBufferedEvents,
+      BufferedEvents = context.LimitBufferedEvents,
     };
     
     var entity = new RagonEntity(entityParameters);

Ragon.Server/Sources/Handler/PlayerUserDataOperation.cs

@@ -0,0 +1,40 @@
+using NLog;
+using Ragon.Protocol;
+using Ragon.Server.IO;
+using Ragon.Server.Lobby;
+
+namespace Ragon.Server.Handler
+{
+  public class PlayerUserDataOperation : BaseOperation
+  {
+    private readonly ILogger _logger = LogManager.GetCurrentClassLogger();
+    private readonly int _userDataLimit;
+    
+    public PlayerUserDataOperation(
+      RagonBuffer reader,
+      RagonBuffer writer,
+      int userDataLimit
+    ) : base(reader, writer)
+    {
+      _userDataLimit = userDataLimit;
+    }
+
+    public override void Handle(RagonContext context, NetworkChannel channel)
+    {
+      if (context.ConnectionStatus == ConnectionStatus.Unauthorized)
+      {
+        _logger.Warn($"Player {context.Connection.Id} not authorized for this request");
+        return;
+      }
+
+      var playerUserData = Reader.ReadBytes(Reader.Capacity);
+      if (playerUserData.Length > _userDataLimit)
+      {
+        _logger.Warn($"Player {context.Connection.Id} exceeded user data limit");
+        return;
+      }
+      
+      context.UserData.Data = playerUserData;
+    }
+  }
+}

Ragon.Server/Sources/Handler/RoomUserDataOperation.cs

@@ -0,0 +1,57 @@
+/*
+ * Copyright 2023 Eduard Kargin <kargin.eduard@gmail.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+using NLog;
+using Ragon.Protocol;
+using Ragon.Server.IO;
+using Ragon.Server.Lobby;
+
+namespace Ragon.Server.Handler;
+
+public sealed class RoomUserDataOperation : BaseOperation
+{
+  private readonly ILogger _logger = LogManager.GetCurrentClassLogger();
+  private readonly int _userDataLimit;
+  
+  public RoomUserDataOperation(
+    RagonBuffer reader,
+    RagonBuffer writer,
+    int userDataLimit
+  ) : base(reader, writer)
+  {
+    _userDataLimit = userDataLimit;
+  }
+
+  public override void Handle(RagonContext context, NetworkChannel channel)
+  {
+    if (context.ConnectionStatus == ConnectionStatus.Unauthorized)
+    {
+      _logger.Warn($"Player {context.Connection.Id} not authorized for this request");
+      return;
+    }
+
+    var roomUserData = Reader.ReadBytes(Reader.Capacity);
+    if (roomUserData.Length > _userDataLimit)
+    {
+      _logger.Warn("Room user data is too big");
+      return;
+    }
+    
+    var room = context.Room;
+    if (room != null)
+      room.UserData.Data = roomUserData;
+  }
+}

Ragon.Server/Sources/Handler/SceneLoadedOperation.cs

@@ -62,7 +62,7 @@ public sealed class SceneLoadedOperation : BaseOperation
           Authority = eventAuthority,
           AttachId = 0,
           StaticId = staticId,
-          BufferedEvents = context.Configuration.LimitBufferedEvents,
+          BufferedEvents = context.LimitBufferedEvents,
         };
 
         var entity = new RagonEntity(entityParameters);

Ragon.Server/Sources/Lobby/RagonLobbyPlayer.cs

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+using Ragon.Server.Data;
 using Ragon.Server.IO;
 
 namespace Ragon.Server.Lobby;
@@ -36,7 +37,7 @@ public class RagonLobbyPlayer
   {
     Id = id;
     Name = name;
-    Payload = payload;
     Connection = connection;
+    Payload = payload;
   }
 }

Ragon.Server/Sources/Plugin/Web/RagonWebHookPlugin.cs

@@ -16,6 +16,7 @@
 
 using System.Net;
 using System.Net.Http.Json;
+using System.Text;
 using Newtonsoft.Json;
 using Ragon.Protocol;
 using Ragon.Server.Handler;

Ragon.Server/Sources/RagonContext.cs

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+using Ragon.Server.Data;
 using Ragon.Server.IO;
 using Ragon.Server.Lobby;
 using Ragon.Server.Time;
@@ -26,28 +27,28 @@ public class RagonContext
   public ConnectionStatus ConnectionStatus { get; set; }
   public INetworkConnection Connection { get; }
   public IExecutor Executor { get; private set; }
-  public RagonServerConfiguration Configuration { get; private set; }
+  public int LimitBufferedEvents { get; private set; }
   public IRagonLobby Lobby { get; private set; }
   public RagonLobbyPlayer? LobbyPlayer { get; private set; }
-
   public RagonRoom? Room { get; private set; }
   public RagonRoomPlayer? RoomPlayer { get; private set; }
-
+  public RagonData UserData { get; private set; }
   public RagonScheduler Scheduler { get; private set; }
 
   public RagonContext(
     INetworkConnection connection,
-    RagonServerConfiguration configuration,
     IExecutor executor,
     IRagonLobby lobby,
-    RagonScheduler scheduler)
+    RagonScheduler scheduler,
+    int limitBufferedEvents)
   {
     ConnectionStatus = ConnectionStatus.Unauthorized;
-    Configuration = configuration;
+    LimitBufferedEvents = limitBufferedEvents;
     Connection = connection;
     Executor = executor;
     Lobby = lobby;
     Scheduler = scheduler;
+    UserData = new RagonData(Array.Empty<byte>());
   }
 
   internal void SetPlayer(RagonLobbyPlayer player)
@@ -64,5 +65,4 @@ public class RagonContext
 
     Room.AttachPlayer(RoomPlayer);
   }
-  
 }

Ragon.Server/Sources/RagonServer.cs

@@ -74,11 +74,13 @@ public class RagonServer : IRagonServer, INetworkListener
     var contextObserver = new RagonContextObserver(_contextsByPlayerId);
     
     _scheduler.Run(new RagonActionTimer(SendRoomList, 1.0f));
+    _scheduler.Run(new RagonActionTimer(SendPlayerUserData, 0.2f));
+    _scheduler.Run(new RagonActionTimer(SendRoomUserData, 0.2f));
     
     _serverPlugin.OnAttached(this);
 
     _handlers = new BaseOperation[byte.MaxValue];
-    _handlers[(byte)RagonOperation.AUTHORIZE] = new AuthorizationOperation(_reader, _writer, _webhooks, contextObserver);
+    _handlers[(byte)RagonOperation.AUTHORIZE] = new AuthorizationOperation(_reader, _writer, _webhooks, contextObserver, configuration);
     _handlers[(byte)RagonOperation.JOIN_OR_CREATE_ROOM] = new RoomJoinOrCreateOperation(_reader, _writer, plugin, _webhooks);
     _handlers[(byte)RagonOperation.CREATE_ROOM] = new RoomCreateOperation(_reader, _writer, plugin, _webhooks);
     _handlers[(byte)RagonOperation.JOIN_ROOM] = new RoomJoinOperation(_reader, _writer, _webhooks);
@@ -94,6 +96,8 @@ public class RagonServer : IRagonServer, INetworkListener
     _handlers[(byte)RagonOperation.TIMESTAMP_SYNCHRONIZATION] = new TimestampSyncOperation(_reader, _writer);
     _handlers[(byte)RagonOperation.REPLICATE_ROOM_EVENT] = new RoomEventOperation(_reader, _writer);
     _handlers[(byte)RagonOperation.REPLICATE_RAW_DATA] = new RoomDataOperation(_reader, _writer);
+    _handlers[(byte)RagonOperation.ROOM_DATA_UPDATED] = new RoomUserDataOperation(_reader, _writer, _configuration.LimitUserData);
+    _handlers[(byte)RagonOperation.PLAYER_DATA_UPDATED] = new PlayerUserDataOperation(_reader, _writer, _configuration.LimitUserData);
 
     _logger.Trace($"Server Tick Rate: {_configuration.ServerTickRate}");
   }
@@ -150,7 +154,7 @@ public class RagonServer : IRagonServer, INetworkListener
 
   public void OnConnected(INetworkConnection connection)
   {
-    var context = new RagonContext(connection, _configuration, _executor, _lobby, _scheduler);
+    var context = new RagonContext(connection, _executor, _lobby, _scheduler, _configuration.LimitBufferedEvents);
 
     _logger.Trace($"Connected: {connection.Id}");
     _contextsByConnection.Add(connection.Id, context);
@@ -244,6 +248,43 @@ public class RagonServer : IRagonServer, INetworkListener
     }
   }
 
+  public void SendPlayerUserData()
+  {
+    foreach (var (_, value) in _contextsByPlayerId)
+    {
+      if (value.UserData.IsDirty)
+      {
+        _writer.Clear();
+        _writer.WriteOperation(RagonOperation.PLAYER_DATA_UPDATED);
+        _writer.WriteUShort(value.Connection.Id);
+        _writer.WriteBytes(value.UserData.Data);
+        
+        var sendData = _writer.ToArray();
+        _server.Broadcast(sendData, NetworkChannel.RELIABLE);
+        
+        value.UserData.IsDirty = false;
+      }
+    }
+  }
+  
+  public void SendRoomUserData()
+  {
+    foreach (var room in _lobby.Rooms)
+    {
+      if (room.UserData.IsDirty)
+      {
+        _writer.Clear();
+        _writer.WriteOperation(RagonOperation.ROOM_DATA_UPDATED);
+        _writer.WriteBytes(room.UserData.Data);
+        
+        var sendData = _writer.ToArray();
+        _server.Broadcast(sendData, NetworkChannel.RELIABLE);
+
+        room.UserData.IsDirty = false;
+      }
+    }
+  }
+
   public BaseOperation ResolveHandler(RagonOperation operation)
   {
     return _handlers[(byte)operation];

Ragon.Server/Sources/RagonServerConfiguration.cs

@@ -39,6 +39,7 @@ public struct RagonServerConfiguration
   public int LimitPlayersPerRoom;
   public int LimitRooms;
   public int LimitBufferedEvents;
+  public int LimitUserData;
   public Dictionary<string, string> WebHooks;
 
   private static readonly Logger Logger = LogManager.GetCurrentClassLogger();

Ragon.Server/Sources/Room/IRagonRoom.cs

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+using Ragon.Server.Data;
 using Ragon.Server.Entity;
 using Ragon.Server.IO;
 
@@ -26,6 +27,7 @@ public interface IRagonRoom
   public int PlayerMin { get; }
   public int PlayerMax { get; }
   public int PlayerCount { get; }
+  public RagonData UserData { get; }
   
   RagonRoomPlayer GetPlayerByConnection(INetworkConnection connection);
   RagonRoomPlayer GetPlayerById(string id);

Ragon.Server/Sources/Room/RagonRoom.cs

@@ -15,6 +15,7 @@
  */
 
 using Ragon.Protocol;
+using Ragon.Server.Data;
 using Ragon.Server.Entity;
 using Ragon.Server.IO;
 using Ragon.Server.Plugin;
@@ -30,6 +31,7 @@ public class RagonRoom : IRagonRoom, IRagonAction
   public int PlayerMin { get; private set; }
   public int PlayerCount => WaitPlayersList.Count;
 
+  public RagonData UserData { get; set; }
   public RagonRoomPlayer Owner { get; private set; }
   public RagonBuffer Writer { get; }
   public IRoomPlugin Plugin { get; private set; }
@@ -66,6 +68,7 @@ public class RagonRoom : IRagonRoom, IRagonAction
 
     _entitiesDirtySet = new HashSet<RagonEntity>();
 
+    UserData = new RagonData(Array.Empty<byte>());
     Writer = new RagonBuffer();
   }
 

Ragon.Server/Sources/Room/RagonRoomPlayer.cs

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+using Ragon.Server.Data;
 using Ragon.Server.Entity;
 using Ragon.Server.IO;