wip

fix: websocket server now can receive large messages
fix: buffer resize on read array

.dockerignore

@@ -0,0 +1,25 @@
+**/.dockerignore
+**/.env
+**/.git
+**/.gitignore
+**/.project
+**/.settings
+**/.toolstarget
+**/.vs
+**/.vscode
+**/.idea
+**/*.*proj.user
+**/*.dbmdl
+**/*.jfm
+**/azds.yaml
+**/bin
+**/charts
+**/docker-compose*
+**/Dockerfile*
+**/node_modules
+**/npm-debug.log
+**/obj
+**/secrets.dev.yaml
+**/values.dev.yaml
+LICENSE
+README.md

.github/workflows/main.yml

@@ -19,7 +19,7 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           tag_name: ${{ github.ref }}
-          release_name: Ragon.SimpleServer-${{ github.ref }}
+          release_name: Ragon.Relay-${{ github.ref }}
           prerelease: true
 
   build:
@@ -49,14 +49,14 @@ jobs:
       - name: Setup dotnet
         uses: actions/setup-dotnet@v1
         with:
-          dotnet-version: 6.0.x
+          dotnet-version: 8.0.x
       - name: Build
         shell: bash
         run: |
-          release_name="Ragon.SimpleServer-${{ env.TAG }}-${{ matrix.target }}"
+          release_name="Ragon.Relay-${{ env.TAG }}-${{ matrix.target }}"
           
           # Build everything
-          dotnet publish Ragon.SimpleServer/Ragon.SimpleServer.csproj -c Release --runtime "${{ matrix.target }}" -p:PublishSingleFile=true -o "$release_name"
+          dotnet publish Ragon.Relay/Ragon.Relay.csproj -c Release --runtime "${{ matrix.target }}" -p:PublishSingleFile=true -o "$release_name"
           
           # Pack files        
           7z a -tzip "${release_name}.zip" "./${release_name}/*"
@@ -69,6 +69,6 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           upload_url: ${{ needs.release.outputs.upload_url }}
-          asset_path: Ragon.SimpleServer-${{ env.TAG }}-${{ matrix.target }}.zip
-          asset_name: Ragon.SimpleServer-${{ env.TAG }}-${{ matrix.target }}.zip
+          asset_path: Ragon.Relay-${{ env.TAG }}-${{ matrix.target }}.zip
+          asset_name: Ragon.Relay-${{ env.TAG }}-${{ matrix.target }}.zip
           asset_content_type: application/zip

.gitignore

@@ -1,6 +1,9 @@
 .DS_Store
 .idea
 .vs
+.vscode
 obj
 bin
-*.user
+*.user
+*.dylib
+*.dll

LICENSE.md

@@ -0,0 +1,202 @@
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+
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+   Copyright {yyyy} {name of copyright owner}
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+	 

README.md

@@ -0,0 +1,31 @@
+<p align="center">
+  <img src="Images/logo.png">
+</p>
+
+## Ragon Server
+
+Ragon is fully free, small and high perfomance room based game server with plugin based architecture.
+
+  <a href="https://www.ragon-server.com/docs/overview">Documentation</a>
+
+### Features:
+- Effective
+- Free
+- Lobby
+- Room based architecture
+- Сustomizable authorization
+- Сustomizable server-side logic via plugins with flexible API*(2)
+- No CCU limitations*(1)
+- No Room count limitations
+- Reliable UDP
+
+### Requirements
+- OSX, Windows, Linux(Ubuntu, Debian)
+- .NET 6.0
+
+### Dependencies
+* ENet-Sharp [v2.4.8]
+
+### Tips
+\* Limited to 4095 CCU by library ENet-Sharp (1)
+\* Non finally (2)

Ragon.Client/Ragon.Client.csproj

@@ -0,0 +1,27 @@
+
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+        <LangVersion>10</LangVersion>
+        <RootNamespace>Ragon.Client.Simulation</RootNamespace>
+        <Authors>Eduard Kargin</Authors>
+        <TargetFramework>netstandard2.0</TargetFramework>
+    </PropertyGroup>
+
+    <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
+      <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+      <DebugType>none</DebugType>
+      <OutputPath></OutputPath>
+    </PropertyGroup>
+
+    <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
+      <OutputPath></OutputPath>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\Ragon.Protocol\Ragon.Protocol.csproj" />
+    </ItemGroup>
+
+</Project>

Ragon.Client/Sources/Handler/AuthorizeFailedHandler.cs

@@ -0,0 +1,35 @@
+/*
+ * 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.
+ * 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 AuthorizeFailedHandler: IHandler
+{
+  private readonly RagonListenerList _listenerList;
+  public AuthorizeFailedHandler(RagonListenerList list)
+  {
+    _listenerList = list;
+  }
+  
+  public void Handle(RagonStream reader)
+  {
+    var message = reader.ReadString();
+    _listenerList.OnAuthorizationFailed(message);
+  }
+}

Ragon.Client/Sources/Handler/AuthorizeSuccessHandler.cs

@@ -0,0 +1,44 @@
+/*
+ * 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.
+ * 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 AuthorizeSuccessHandler: IHandler
+{
+  private readonly RagonListenerList _listenerList;
+  private readonly RagonClient _client;
+  
+  public AuthorizeSuccessHandler(
+    RagonClient client,
+    RagonListenerList listenerList)
+  {
+    _client = client;
+    _listenerList = listenerList;
+  }
+  
+  public void Handle(RagonStream reader)
+  {
+    var playerId = reader.ReadString();
+    var playerName = reader.ReadString();
+    var playerPayload = reader.ReadString();
+
+    _client.UpdateState(RagonState.LOBBY);
+    _listenerList.OnAuthorizationSuccess(playerId, playerName, playerPayload);
+  }
+}

Ragon.Client/Sources/Handler/IHandler.cs

@@ -0,0 +1,25 @@
+/*
+ * 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.
+ * 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 IHandler
+{
+  public void Handle(RagonStream reader);
+}

Ragon.Client/Sources/Handler/JoinFailedHandler.cs

@@ -0,0 +1,36 @@
+/*
+ * 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.
+ * 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 JoinFailedHandler: IHandler
+{
+  private readonly RagonListenerList _listenerList;
+  
+  public JoinFailedHandler(RagonListenerList listenerList)
+  {
+    _listenerList = listenerList;
+  }
+  
+  public void Handle(RagonStream reader)
+  {
+    var message = reader.ReadString();
+    _listenerList.OnFailed(message);
+  }
+}

Ragon.Client/Sources/Handler/JoinSuccessHandler.cs

@@ -0,0 +1,88 @@
+/*
+ * 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.
+ * 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 struct RoomParameters
+{
+  public RoomParameters(string roomId, string playerId, string ownerId, ushort min, ushort max)
+  {
+    RoomId = roomId;
+    PlayerId = playerId;
+    OwnerId = ownerId;
+    Min = min;
+    Max = max;
+  }
+
+  public string RoomId { get; private set; }
+  public string PlayerId { get; private set; }
+  public string OwnerId { get; private set; }
+  public ushort Min { get; private set; }
+  public ushort Max { get; private set; }
+}
+
+internal class JoinSuccessHandler : IHandler
+{
+  private readonly RagonListenerList _listenerList;
+  private readonly RagonPlayerCache _playerCache;
+  private readonly RagonClient _client;
+  private readonly RagonRoom _room;
+
+  public JoinSuccessHandler(
+    RagonClient client,
+    RagonRoom room
+  )
+  {
+    _client = client;
+    _room = room;
+  }
+
+  public void Handle(RagonStream reader)
+  {
+    var roomId = reader.ReadString();
+    var min = reader.ReadUShort();
+    var max = reader.ReadUShort();
+    var localId = reader.ReadString();
+    var ownerId = reader.ReadString();
+    var roomInfo = new RoomParameters(roomId, localId, ownerId, min, max);
+    
+    _playerCache.SetOwnerAndLocal(ownerId, localId);
+    _room.Reset(roomInfo);
+    _room.UserData.Read(reader);
+
+    var playersCount = reader.ReadUShort();
+    RagonLog.Trace("Players: " + playersCount);
+    for (var i = 0; i < playersCount; i++)
+    {
+      var playerPeerId = reader.ReadUShort();
+      var playerId = reader.ReadString();
+      var playerName = reader.ReadString();
+
+      var player = _playerCache.AddPlayer(playerPeerId, playerId, playerName);
+
+      player.UserData.Read(reader);
+
+      RagonLog.Trace($"Player {playerPeerId} - {playerId} - {playerName}");
+    }
+
+    _client.UpdateState(RagonState.ROOM);
+
+    _listenerList.OnJoined();
+  }
+}

Ragon.Client/Sources/Handler/LeaveRoomHandler.cs

@@ -0,0 +1,41 @@
+/*
+ * 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.
+ * 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 LeaveRoomHandler : IHandler
+{
+  private readonly RagonClient _client;
+  private readonly RagonListenerList _listenerList;
+  
+  public LeaveRoomHandler(
+    RagonClient client,
+    RagonListenerList listenerList)
+  {
+    _client = client;
+    _listenerList = listenerList;
+  }
+
+  public void Handle(RagonStream reader)
+  {    
+    _listenerList.OnLeft();
+    
+    _client.Room.Clear();
+  }
+}

Ragon.Client/Sources/Handler/OwnershipRoomHandler.cs

@@ -0,0 +1,50 @@
+/*
+ * 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.
+ * 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 OwnershipRoomHandler : IHandler
+{
+  private readonly RagonListenerList _listenerList;
+  private readonly RagonPlayerCache _playerCache;
+
+  public OwnershipRoomHandler(
+    RagonListenerList listenerList,
+    RagonPlayerCache playerCache)
+  {
+    _listenerList = listenerList;
+    _playerCache = playerCache;
+  }
+
+  public void Handle(RagonStream reader)
+  {
+    var newOwnerId = reader.ReadUShort();
+    var player = _playerCache.GetPlayerByPeer(newOwnerId);
+    if (player == null)
+    {
+      RagonLog.Warn($"Player with peerId:{newOwnerId} not found in cache");
+      
+      _playerCache.Dump();
+      return;
+    }
+
+    _playerCache.OnOwnershipChanged(newOwnerId);
+    _listenerList.OnOwnershipChanged(player);
+  }
+}

Ragon.Client/Sources/Handler/PlayerJoinHandler.cs

@@ -0,0 +1,50 @@
+/*
+ * 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.
+ * 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 PlayerJoinHandler : IHandler
+{
+  private RagonPlayerCache _playerCache;
+  private RagonListenerList _listenerList;
+
+  public PlayerJoinHandler(
+    RagonPlayerCache playerCache,
+    RagonListenerList listenerList
+  )
+  {
+    _playerCache = playerCache;
+    _listenerList = listenerList;
+  }
+
+  public void Handle(RagonStream reader)
+  {
+    var playerPeerId = reader.ReadUShort();
+    var playerId = reader.ReadString();
+    var playerName = reader.ReadString();
+
+    _playerCache.AddPlayer(playerPeerId, playerId, playerName);
+
+    var player = _playerCache.GetPlayerById(playerId);
+    if (player != null)
+      _listenerList.OnPlayerJoined(player);
+    else
+      RagonLog.Warn($"Player with Id:{playerId} not found in cache");
+  }
+}

Ragon.Client/Sources/Handler/PlayerLeftHandler.cs

@@ -0,0 +1,63 @@
+/*
+ * 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.
+ * 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 PlayerLeftHandler : IHandler
+{
+  private RagonPlayerCache _playerCache;
+  private RagonListenerList _listenerList;
+
+  public PlayerLeftHandler(
+    RagonPlayerCache playerCache,
+    RagonListenerList listenerList
+  )
+  {
+    _playerCache = playerCache;
+    _listenerList = listenerList;
+  }
+
+  public void Handle(RagonStream reader)
+  {
+    var playerId = reader.ReadString();
+    var player = _playerCache.GetPlayerById(playerId);
+    if (player != null)
+    {
+      _playerCache.RemovePlayer(playerId);
+      _listenerList.OnPlayerLeft(player);
+
+      var entities = reader.ReadUShort();
+      var toDeleteIds = new ushort[entities];
+      for (var i = 0; i < entities; i++)
+      {
+        var entityId = reader.ReadUShort();
+        toDeleteIds[i] = entityId;
+      }
+
+    
+      // var emptyPayload = new RagonPayload(0);
+      // foreach (var id in toDeleteIds)
+        // _entityCache.OnDestroy(id, emptyPayload);
+    }
+    else
+    {
+      RagonLog.Warn($"Player with Id:{playerId} not found in cache");
+    }
+  }
+}

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(RagonStream reader)
+    {
+      var playerPeerId = reader.ReadUShort();
+      var player = _playerCache.GetPlayerByPeer(playerPeerId);
+
+      if (player != null)
+      {
+        var changes = player.UserData.Read(reader);
+        
+        _listenerList.OnPlayerUserData(player, changes);
+        
+        return;
+      }
+      
+      RagonLog.Warn("Received user data for unknown player.");
+    }
+  }
+}

Ragon.Client/Sources/Handler/RoomEventHandler.cs

@@ -0,0 +1,55 @@
+/*
+ * 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.
+ * 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 RoomEventHandler : IHandler
+{
+  private readonly RagonClient _client;
+  private readonly RagonPlayerCache _playerCache;
+
+  public RoomEventHandler(
+    RagonClient client,
+    RagonPlayerCache playerCache
+  )
+  {
+    _client = client;
+    _playerCache = playerCache;
+  }
+
+  public void Handle(RagonStream buffer)
+  {
+    var eventCode = buffer.ReadUShort();
+    var peerId = buffer.ReadUShort();
+    var executionMode = (RagonReplicationMode) buffer.ReadByte();
+
+    var player = _playerCache.GetPlayerByPeer(peerId);
+    if (player == null)
+    {
+      RagonLog.Error($"Player with peerId:{peerId} not found as owner of event with code:{eventCode}");
+
+      _playerCache.Dump();
+      return;
+    }
+
+    if (player.IsLocal && executionMode == RagonReplicationMode.LocalAndServer)
+      return;
+
+    _client.Room.HandleEvent(eventCode, player, buffer);
+  }
+}

Ragon.Client/Sources/Handler/RoomListHandler.cs

@@ -0,0 +1,43 @@
+using Ragon.Protocol;
+
+namespace Ragon.Client;
+
+internal class RoomListHandler: IHandler
+{
+  private RagonListenerList _listenerList;
+  private RagonSession _session;
+  
+  public RoomListHandler(RagonSession session, RagonListenerList list)
+  {
+    _session = session;
+    _listenerList = list;
+  }
+  
+  public void Handle(RagonStream reader)
+  {
+    var roomCount = reader.ReadUShort();
+    var roomList = new RagonRoomInformation[roomCount];
+    for (int i = 0; i < roomCount; i++)
+    {
+      var id = reader.ReadString();
+      var scene = reader.ReadString();
+      var maxPlayers = reader.ReadUShort();
+      var minPlayers = reader.ReadUShort();
+      var players = reader.ReadUShort();
+
+      var roomInfo = new RagonRoomInformation()
+      {
+        Id = id,
+        Scene = scene,
+        PlayerCount = players,
+        PlayerMax = maxPlayers,
+        PlayerMin = minPlayers,
+        Properties = new Dictionary<string, byte[]>() 
+      };
+      
+      roomList[i] = roomInfo;
+    }
+    
+    _listenerList.OnRoomList(roomList);
+  }
+}

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(RagonStream reader)
+    {
+      var changes = _client.Room?.UserData.Read(reader);
+      _listenerList.OnRoomUserData(changes);
+    }
+  }
+}

Ragon.Client/Sources/Handler/TimestampHandler.cs

@@ -0,0 +1,21 @@
+using Ragon.Protocol;
+
+namespace Ragon.Client;
+
+public class TimestampHandler: IHandler
+{
+  private readonly RagonClient _client;
+  public TimestampHandler(RagonClient client)
+  {
+    _client = client;
+  }
+  
+  public void Handle(RagonStream buffer)
+  {
+    var timestamp0 = (uint)buffer.ReadInt(); 
+    var timestamp1 = (uint)buffer.ReadInt();
+    var value = new DoubleToUInt { Int0 = timestamp0, Int1 = timestamp1 };
+    
+    _client.UpdateTimestamp(value.Double);
+  }
+}

Ragon.Client/Sources/IO/INetworkChannel.cs

@@ -0,0 +1,22 @@
+/*
+ * 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.
+ * 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 INetworkChannel
+{
+  void Send(byte[] data);
+}

Ragon.Client/Sources/IO/INetworkConnection.cs

@@ -0,0 +1,37 @@
+/*
+ * 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.
+ * 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 INetworkConnection: IRagonConnection
+{
+    public INetworkChannel Reliable { get; }
+    public INetworkChannel Unreliable { get; }
+    public Action<byte[]> OnData { get; set; }
+    public Action OnConnected { get; set; }
+    public Action<RagonDisconnect> OnDisconnected { get; set; }
+    public ulong BytesSent { get; }
+    public  ulong BytesReceived { get; }
+    public int Ping { get;  }
+    public void Prepare();
+    public void Connect(string address, ushort port, uint protocol);
+    public void Disconnect();
+    public void Update();
+    public void Dispose();
+}

Ragon.Client/Sources/IO/NetworkStatistics.cs

@@ -0,0 +1,62 @@
+/*
+ * 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.
+ * 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 class NetworkStatistics
+{
+  private const double Interval = 1.0d;
+  private double _upstreamBandwidth = 0d;
+  private double _downstreamBandwidth = 0d;
+  private double _time = 0d;
+  private ulong _upstreamData = 0;
+  private ulong _downstreamData = 0;
+  private ulong _sent = 0;
+  private ulong _received = 0;
+  private int _ping;
+
+  public int Ping => _ping;
+  public double UpstreamBandwidth => _upstreamBandwidth;
+  public double DownstreamBandwidth => _downstreamBandwidth;
+  
+  public void Update(ulong sent, ulong received, int ping, float dt)
+  {
+    _sent = sent;
+    _received = received;
+    _ping = ping;
+    
+    _time += dt;
+    if (_time >= Interval)
+    {
+      if (_upstreamData > 0)
+      {
+        _upstreamData = _sent - _upstreamData;
+        _upstreamBandwidth = (_upstreamData / _time) / 1000 ;
+      }
+
+      if (_downstreamData > 0)
+      {
+        _downstreamData = _received - _downstreamData;
+        _downstreamBandwidth = (_downstreamData / _time) / 1000;
+      }
+
+      _upstreamData = _sent;
+      _downstreamData = _received;
+      _time -= Interval;
+    }
+  }
+}

Ragon.Client/Sources/IRagonConnection.cs

@@ -0,0 +1,22 @@
+/*
+ * 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.
+ * 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 IRagonConnection
+{
+  public void Close();
+}

Ragon.Client/Sources/IRagonEvent.cs

@@ -0,0 +1,24 @@
+/*
+ * 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.
+ * 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 IRagonEvent: IRagonSerializable
+  {
+  }
+}

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; }
+  IReadOnlyList<string> Read(RagonStream buffer);
+  void Write(RagonStream buffer);
+}

Ragon.Client/Sources/Listener/IRagonAuthorizationListener.cs

@@ -0,0 +1,24 @@
+/*
+ * 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.
+ * 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 IRagonAuthorizationListener
+{
+  void OnAuthorizationSuccess(RagonClient client, string playerId, string playerName);
+  void OnAuthorizationFailed(RagonClient client, string message);
+}

Ragon.Client/Sources/Listener/IRagonConnectionListener.cs

@@ -0,0 +1,25 @@
+/*
+ * 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.
+ * 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 IRagonConnectionListener
+{
+  void OnConnected(RagonClient client);
+  void OnDisconnected(RagonClient client, RagonDisconnect reason);
+}

Ragon.Client/Sources/Listener/IRagonDataListener.cs

@@ -0,0 +1,22 @@
+/*
+ * 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.
+ * 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 IRagonDataListener
+{
+  public void OnData(RagonClient client, RagonPlayer player, byte[] data);
+}

Ragon.Client/Sources/Listener/IRagonFailedListener.cs

@@ -0,0 +1,22 @@
+/*
+ * 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.
+ * 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 IRagonFailedListener
+{
+  void OnFailed(RagonClient client, string message);
+}

Ragon.Client/Sources/Listener/IRagonJoinListener.cs

@@ -0,0 +1,22 @@
+/*
+ * 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.
+ * 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 IRagonJoinListener
+{
+  void OnJoined(RagonClient client);
+}

Ragon.Client/Sources/Listener/IRagonLeftListener.cs

@@ -0,0 +1,22 @@
+/*
+ * 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.
+ * 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 IRagonLeftListener
+{
+  void OnLeft(RagonClient client);
+}

Ragon.Client/Sources/Listener/IRagonListener.cs

@@ -0,0 +1,34 @@
+/*
+ * 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.
+ * 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 IRagonListener : 
+    IRagonAuthorizationListener, 
+    IRagonConnectionListener, 
+    IRagonFailedListener,
+    IRagonJoinListener, 
+    IRagonLeftListener, 
+    IRagonOwnershipChangedListener,
+    IRagonPlayerJoinListener, 
+    IRagonPlayerLeftListener,
+    IRagonRoomListListener,
+    IRagonRoomUserDataListener,
+    IRagonPlayerUserDataListener
+  {
+    
+  }
+}

Ragon.Client/Sources/Listener/IRagonOwnershipChangedListener.cs

@@ -0,0 +1,22 @@
+/*
+ * 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.
+ * 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 IRagonOwnershipChangedListener
+{
+  void OnOwnershipChanged(RagonClient client, RagonPlayer player);
+}

Ragon.Client/Sources/Listener/IRagonPlayerJoinListener.cs

@@ -0,0 +1,22 @@
+/*
+ * 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.
+ * 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 IRagonPlayerJoinListener
+{
+  void OnPlayerJoined(RagonClient client, RagonPlayer player);
+}

Ragon.Client/Sources/Listener/IRagonPlayerLeftListener.cs

@@ -0,0 +1,22 @@
+/*
+ * 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.
+ * 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 IRagonPlayerLeftListener
+{
+  void OnPlayerLeft(RagonClient client, RagonPlayer player);
+}

Ragon.Client/Sources/Listener/IRagonPlayerUserDataListener.cs

@@ -0,0 +1,22 @@
+/*
+ * 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.
+ * 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, IReadOnlyList<string> changes);
+}

Ragon.Client/Sources/Listener/IRagonRoomListListener.cs

@@ -0,0 +1,6 @@
+namespace Ragon.Client;
+
+public interface IRagonRoomListListener
+{
+  public void OnRoomListUpdate(RagonClient client, IReadOnlyList<RagonRoomInformation> roomsInfos);
+}

Ragon.Client/Sources/Listener/IRagonRoomUserDataListener.cs

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

Ragon.Client/Sources/Log/IRagonLogger.cs

@@ -0,0 +1,26 @@
+/*
+ * 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.
+ * 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 IRagonLogger
+  {
+    public void Warn(string message);
+    public void Trace(string message);
+    public void Info(string message);
+    public void Error(string message);
+  }
+}

Ragon.Client/Sources/Log/Loggers/RagonConsoleLogger.cs

@@ -0,0 +1,41 @@
+/*
+ * 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.
+ * 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 class RagonConsoleLogger: IRagonLogger
+  {
+    public void Warn(string message)
+    {
+     Console.WriteLine($"[WARN] {message}"); 
+    }
+    
+    public void Trace(string message)
+    {
+      Console.WriteLine($"[TRACE] {message}");
+    }
+    
+    public void Info(string message)
+    {
+      Console.WriteLine($"[INFO] {message}");
+    }
+    
+    public void Error(string message)
+    {
+      Console.WriteLine($"[ERROR] {message}");
+    }
+  }
+}

Ragon.Client/Sources/Log/RagonLog.cs

@@ -0,0 +1,29 @@
+/*
+ * 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.
+ * 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 class RagonLog
+  {
+    private static IRagonLogger _ragonLogger;
+    static RagonLog() => _ragonLogger = new RagonConsoleLogger();
+    public static void Set(IRagonLogger logger) => _ragonLogger = logger;
+    public static void Warn(string message) => _ragonLogger.Warn(message);
+    public static void Trace(string message) => _ragonLogger.Trace(message);
+    public static void Info(string message) => _ragonLogger.Info(message);
+    public static void Error(string message) => _ragonLogger.Error(message);
+  }
+}

Ragon.Client/Sources/Log/RagonLogLevel.cs

@@ -0,0 +1,26 @@
+/*
+ * 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.
+ * 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 enum RagonLogLevel
+{
+  ALL,
+  CONNECTION,
+  STATE,
+  EVENT,
+  ROOM,
+}

Ragon.Client/Sources/RagonClient.cs

@@ -0,0 +1,255 @@
+/*
+ * 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.
+ * 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 sealed class RagonClient
+  {
+    private readonly INetworkConnection _connection;
+    private readonly NetworkStatistics _stats;
+
+    private IHandler[] _handlers;
+    private RagonStream _readBuffer;
+    private RagonStream _writeBuffer;
+    private RagonRoom _room;
+    private RagonSession _session;
+    private RagonListenerList _listeners;
+    private RagonPlayerCache _playerCache;
+    private RagonEventCache _eventCache;
+    private RagonState _state;
+
+    private double _serverTimestamp;
+    private float _replicationRate = 0;
+    private float _replicationTime = 0;
+
+    public double ServerTimestamp => _serverTimestamp;
+    public IRagonConnection Connection => _connection;
+    public RagonState State => _state;
+    public RagonSession Session => _session;
+    public RagonEventCache Event => _eventCache;
+    public NetworkStatistics Statistics => _stats;
+    public RagonRoom Room => _room;
+
+    internal RagonStream Buffer => _writeBuffer;
+    internal INetworkChannel Reliable => _connection.Reliable;
+    internal INetworkChannel Unreliable => _connection.Unreliable;
+
+    #region PUBLIC
+
+    public RagonClient(INetworkConnection connection, int rate)
+    {
+      _listeners = new RagonListenerList(this);
+
+      _connection = connection;
+      _connection.OnData += OnData;
+      _connection.OnConnected += OnConnected;
+      _connection.OnDisconnected += OnDisconnected;
+
+      _replicationRate = (1000.0f / rate) / 1000.0f;
+      _replicationTime = 0;
+
+      _eventCache = new RagonEventCache();
+      _writeBuffer = new RagonStream();
+      _readBuffer = new RagonStream();
+      _playerCache = new RagonPlayerCache();
+      _session = new RagonSession(this, _writeBuffer);
+      _room = new RagonRoom(this, _playerCache);
+      _stats = new NetworkStatistics();
+      _state = RagonState.DISCONNECTED;
+      
+      _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, _room);
+      _handlers[(byte)RagonOperation.JOIN_FAILED] = new JoinFailedHandler(_listeners);
+      _handlers[(byte)RagonOperation.LEAVE_ROOM] = new LeaveRoomHandler(this, _listeners);
+      _handlers[(byte)RagonOperation.OWNERSHIP_ROOM_CHANGED] = new OwnershipRoomHandler(_listeners, _playerCache);
+      _handlers[(byte)RagonOperation.PLAYER_JOINED] = new PlayerJoinHandler(_playerCache, _listeners);
+      _handlers[(byte)RagonOperation.PLAYER_LEAVED] = new PlayerLeftHandler(_playerCache, _listeners);
+      _handlers[(byte)RagonOperation.REPLICATE_ROOM_EVENT] = new RoomEventHandler(this, _playerCache);
+      _handlers[(byte)RagonOperation.TIMESTAMP_SYNCHRONIZATION] = new TimestampHandler(this);
+      _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);
+    }
+    
+    public void Connect(string address, ushort port, string protocol)
+    {
+      var protocolRaw = RagonVersion.Parse(protocol);
+      _connection.Connect(address, port, protocolRaw);
+    }
+
+    public void Disconnect()
+    {
+      _state = RagonState.DISCONNECTED;
+      _room.Clear();
+      
+      _connection.Disconnect();
+
+      OnDisconnected(RagonDisconnect.MANUAL);
+    }
+
+    public void Update(float dt)
+    {
+      if (_state != RagonState.DISCONNECTED)
+      {
+        _replicationTime += dt;
+        if (_replicationTime >= _replicationRate)
+        {
+          _replicationTime = 0;
+        
+          SendTimestamp();
+          SendRoomUserData();
+          SendPlayerUserData();
+        }
+
+        _stats.Update(_connection.BytesSent, _connection.BytesReceived, _connection.Ping, dt);
+      }
+
+      _listeners.Update();
+      _connection.Update();
+    }
+
+    public void Dispose()
+    {
+      if (_state != RagonState.DISCONNECTED)
+      {
+        _state = RagonState.DISCONNECTED;
+        _connection.Disconnect();
+      }
+
+      _connection.Dispose();
+    }
+
+    public void AddListener(IRagonListener listener) => _listeners.Add(listener);
+    public void AddListener(IRagonAuthorizationListener listener) => _listeners.Add(listener);
+    public void AddListener(IRagonConnectionListener listener) => _listeners.Add(listener);
+    public void AddListener(IRagonFailedListener listener) => _listeners.Add(listener);
+    public void AddListener(IRagonJoinListener listener) => _listeners.Add(listener);
+    public void AddListener(IRagonLeftListener listener) => _listeners.Add(listener);
+    public void AddListener(IRagonOwnershipChangedListener listener) => _listeners.Add(listener);
+    public void AddListener(IRagonPlayerJoinListener listener) => _listeners.Add(listener);
+    public void AddListener(IRagonPlayerLeftListener 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);
+    public void RemoveListener(IRagonFailedListener listener) => _listeners.Remove(listener);
+    public void RemoveListener(IRagonJoinListener listener) => _listeners.Remove(listener);
+    public void RemoveListener(IRagonLeftListener listener) => _listeners.Remove(listener);
+    public void RemoveListener(IRagonOwnershipChangedListener listener) => _listeners.Remove(listener);
+    public void RemoveListener(IRagonPlayerJoinListener listener) => _listeners.Remove(listener);
+    public void RemoveListener(IRagonPlayerLeftListener 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
+
+    #region INTERNAL
+    
+    internal void UpdateState(RagonState state)
+    {
+      _state = state;
+    }
+
+    internal void UpdateTimestamp(double time)
+    {
+      _serverTimestamp = time;
+    }
+
+    #endregion
+
+    #region PRIVATE
+
+    private void SendTimestamp()
+    {
+      var timestamp = RagonTime.CurrentTimestamp();
+      var value = new DoubleToUInt()
+      {
+        Double = timestamp,
+      };
+
+      _writeBuffer.Clear();
+      _writeBuffer.WriteOperation(RagonOperation.TIMESTAMP_SYNCHRONIZATION);
+      _writeBuffer.WriteInt((int)value.Int0);
+      _writeBuffer.WriteInt((int)value.Int1);
+    }
+
+    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");
+
+      _listeners.OnConnected();
+      _state = RagonState.CONNECTED;
+    }
+
+    private void OnDisconnected(RagonDisconnect reason)
+    {
+      RagonLog.Trace($"Disconnected: {reason}");
+
+      _listeners.OnDisconnected(reason);
+      _state = RagonState.DISCONNECTED;
+    }
+
+    private void OnData(byte[] data)
+    {
+      _readBuffer.Clear();
+      _readBuffer.FromArray(data);
+
+      var operation = _readBuffer.ReadByte();
+      _handlers[operation].Handle(_readBuffer);
+    }
+
+    #endregion
+  }
+}

Ragon.Client/Sources/RagonEventCache.cs

@@ -0,0 +1,77 @@
+/*
+ * 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.
+ * 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 class RagonEventCache
+{
+  private readonly Dictionary<Type, ushort> _eventsRegistryByType = new();
+  private readonly HashSet<ushort> _codes = new();
+  private readonly HashSet<Type> _types = new();
+  private ushort _eventIdGenerator = 0;
+
+  public ushort GetEventCode<TEvent>(TEvent _) where TEvent : IRagonEvent
+  {
+    var type = typeof(TEvent);
+   
+    if (!_eventsRegistryByType.TryGetValue(type, out var eventCode))
+    {
+      RagonLog.Error($"Event with type {type} not registered");
+      return 0;
+    }
+    
+    return eventCode;
+  }
+
+  public void Register<T>() where T : IRagonEvent, new()
+  {
+    var type = typeof(T);
+    if (_types.Contains(type))
+    {
+      RagonLog.Trace($"[Ragon] Event already registered: {type.Name}");
+      return;
+    }
+
+    RagonLog.Trace($"[Ragon] Registered Event: {type.Name} - {_eventIdGenerator}");
+
+    _eventsRegistryByType.Add(type, _eventIdGenerator);
+    _codes.Add(_eventIdGenerator);
+    _types.Add(type);
+    
+    _eventIdGenerator++;
+  }
+
+  public void Register<T>(ushort evntCode) where T : IRagonEvent, new()
+  {
+    var type = typeof(T);
+    if (_codes.Contains(evntCode) || _types.Contains(type))
+    {
+      RagonLog.Warn($"[Ragon] Event already registered: {type.Name} - {evntCode}");
+      return;
+    }
+
+    RagonLog.Trace($"[Ragon] Registered Event: {type.Name} - {evntCode}");
+
+    _codes.Add(evntCode);
+    _types.Add(type);
+    _eventsRegistryByType.Add(type, evntCode);
+  }
+
+  public T Create<T>() where T : IRagonEvent, new()
+  {
+    return new T();
+  }
+}

Ragon.Client/Sources/RagonListenerList.cs

@@ -0,0 +1,269 @@
+/*
+ * 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.
+ * 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 RagonListenerList
+  {
+    private readonly RagonClient _client;
+    private readonly List<IRagonAuthorizationListener> _authorizationListeners = new();
+    private readonly List<IRagonConnectionListener> _connectionListeners = new();
+    private readonly List<IRagonFailedListener> _failedListeners = new();
+    private readonly List<IRagonJoinListener> _joinListeners = new();
+    private readonly List<IRagonLeftListener> _leftListeners = new();
+    private readonly List<IRagonOwnershipChangedListener> _ownershipChangedListeners = new();
+    private readonly List<IRagonPlayerJoinListener> _playerJoinListeners = new();
+    private readonly List<IRagonPlayerLeftListener> _playerLeftListeners = 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)
+    {
+      _client = client;
+    }
+
+    public void Add(IRagonListener listener)
+    {
+      _authorizationListeners.Add(listener);
+      _connectionListeners.Add(listener);
+      _failedListeners.Add(listener);
+      _joinListeners.Add(listener);
+      _leftListeners.Add(listener);
+      _ownershipChangedListeners.Add(listener);
+      _playerJoinListeners.Add(listener);
+      _playerLeftListeners.Add(listener);
+      _roomUserDataListeners.Add(listener);
+      _playerUserDataListeners.Add(listener);
+    }
+
+    public void Remove(IRagonListener listener)
+    {
+      _delayedActions.Add(() =>
+      {
+        _authorizationListeners.Remove(listener);
+        _connectionListeners.Remove(listener);
+        _failedListeners.Remove(listener);
+        _joinListeners.Remove(listener);
+        _leftListeners.Remove(listener);
+        _ownershipChangedListeners.Remove(listener);
+        _playerJoinListeners.Remove(listener);
+        _playerLeftListeners.Remove(listener);
+        _roomUserDataListeners.Remove(listener);
+        _playerUserDataListeners.Remove(listener);
+      });
+    }
+
+    public void Update()
+    {
+      foreach (var action in _delayedActions)
+        action.Invoke();
+
+      _delayedActions.Clear();
+    }
+
+    public void Add(IRagonAuthorizationListener listener)
+    {
+      _authorizationListeners.Add(listener);
+    }
+
+    public void Add(IRagonConnectionListener listener)
+    {
+      _connectionListeners.Add(listener);
+    }
+
+    public void Add(IRagonFailedListener listener)
+    {
+      _failedListeners.Add(listener);
+    }
+
+    public void Add(IRagonJoinListener listener)
+    {
+      _joinListeners.Add(listener);
+    }
+
+    public void Add(IRagonLeftListener listener)
+    {
+      _leftListeners.Add(listener);
+    }
+
+    public void Add(IRagonOwnershipChangedListener listener)
+    {
+      _ownershipChangedListeners.Add(listener);
+    }
+
+    public void Add(IRagonPlayerJoinListener listener)
+    {
+      _playerJoinListeners.Add(listener);
+    }
+
+    public void Add(IRagonPlayerLeftListener listener)
+    {
+      _playerLeftListeners.Add(listener);
+    }
+
+    public void Add(IRagonRoomListListener listener)
+    {
+      _roomListListeners.Add(listener);
+    }
+
+    public void Add(IRagonRoomUserDataListener listener)
+    {
+      _roomUserDataListeners.Add(listener);
+    }
+    
+    public void Add(IRagonPlayerUserDataListener listener)
+    {
+      _playerUserDataListeners.Add(listener);
+    }
+
+    public void Remove(IRagonAuthorizationListener listener)
+    {
+      _delayedActions.Add(() => _authorizationListeners.Remove(listener));
+    }
+
+    public void Remove(IRagonConnectionListener listener)
+    {
+      _delayedActions.Add(() => _connectionListeners.Remove(listener));
+    }
+
+    public void Remove(IRagonFailedListener listener)
+    {
+      _delayedActions.Add(() => _failedListeners.Remove(listener));
+    }
+
+    public void Remove(IRagonJoinListener listener)
+    {
+      _delayedActions.Add(() => _joinListeners.Remove(listener));
+    }
+
+    public void Remove(IRagonLeftListener listener)
+    {
+      _delayedActions.Add(() => _leftListeners.Remove(listener));
+    }
+
+    public void Remove(IRagonOwnershipChangedListener listener)
+    {
+      _delayedActions.Add(() => _ownershipChangedListeners.Remove(listener));
+    }
+
+    public void Remove(IRagonPlayerJoinListener listener)
+    {
+      _delayedActions.Add(() => _playerJoinListeners.Remove(listener));
+    }
+
+    public void Remove(IRagonPlayerLeftListener listener)
+    {
+      _delayedActions.Add(() => _playerLeftListeners.Remove(listener));
+    }
+
+    public void Remove(IRagonRoomListListener listener)
+    {
+      _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)
+        listener.OnAuthorizationSuccess(_client, playerId, playerName);
+    }
+
+    public void OnAuthorizationFailed(string message)
+    {
+      foreach (var listener in _authorizationListeners)
+        listener.OnAuthorizationFailed(_client, message);
+    }
+
+    public void OnLeft()
+    {
+      foreach (var listener in _leftListeners)
+        listener.OnLeft(_client);
+    }
+
+    public void OnFailed(string message)
+    {
+      foreach (var listener in _failedListeners)
+        listener.OnFailed(_client, message);
+    }
+
+    public void OnOwnershipChanged(RagonPlayer player)
+    {
+      foreach (var listener in _ownershipChangedListeners)
+        listener.OnOwnershipChanged(_client, player);
+    }
+
+    public void OnPlayerLeft(RagonPlayer player)
+    {
+      foreach (var listener in _playerLeftListeners)
+        listener.OnPlayerLeft(_client, player);
+    }
+
+    public void OnPlayerJoined(RagonPlayer player)
+    {
+      foreach (var listener in _playerJoinListeners)
+        listener.OnPlayerJoined(_client, player);
+    }
+
+    public void OnJoined()
+    {
+      foreach (var listener in _joinListeners)
+        listener.OnJoined(_client);
+    }
+
+    public void OnConnected()
+    {
+      foreach (var listener in _connectionListeners)
+        listener.OnConnected(_client);
+    }
+
+    public void OnDisconnected(RagonDisconnect disconnect)
+    {
+      foreach (var listener in _connectionListeners)
+        listener.OnDisconnected(_client, disconnect);
+    }
+
+    public void OnRoomList(RagonRoomInformation[] roomInfos)
+    {
+      foreach (var listListener in _roomListListeners)
+        listListener.OnRoomListUpdate(_client, roomInfos);
+    }
+
+    public void OnRoomUserData(IReadOnlyList<string> changes)
+    {
+      foreach (var userDataListener in _roomUserDataListeners)
+        userDataListener.OnUserDataUpdated(_client, changes);
+    }
+
+    public void OnPlayerUserData(RagonPlayer player, IReadOnlyList<string> changes)
+    {
+      foreach(var playerUserDataListener in _playerUserDataListeners)
+        playerUserDataListener.OnPlayerUserDataUpdated(_client, player, changes);
+    }
+  }
+}

Ragon.Client/Sources/RagonPlayer.cs

@@ -0,0 +1,39 @@
+/*
+ * 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.
+ * 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
+{
+  [Serializable]
+  public class RagonPlayer
+  {
+    public string Id { get; private set; }
+    public string Name { get; set; }
+    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)
+    {
+      PeerId = peerId;
+      IsRoomOwner = isRoomOwner;
+      IsLocal = isLocal;
+      Name = name;
+      Id = playerId;
+      UserData = isLocal ? new RagonUserData() : new RagonUserDataReadOnly();
+    }
+  }
+}

Ragon.Client/Sources/RagonPlayerCache.cs

@@ -0,0 +1,119 @@
+/*
+ * 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.
+ * 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 sealed class RagonPlayerCache
+{
+  private readonly List<RagonPlayer> _players = new();
+  private readonly Dictionary<string, RagonPlayer> _playersById = new();
+  private readonly Dictionary<ushort, RagonPlayer> _playersByConnection = new();
+
+  public IReadOnlyList<RagonPlayer> Players => _players;
+  public RagonPlayer Owner { get; private set; }
+  public RagonPlayer Local { get; private set; }
+  public bool IsRoomOwner => _ownerId == _localId;
+
+  public RagonPlayer? GetPlayerById(string playerId)
+  {
+    if (_playersById.TryGetValue(playerId, out var player))
+      return player;
+
+    return null;
+  }
+
+  public RagonPlayer? GetPlayerByPeer(ushort peerId)
+  {
+    if (_playersByConnection.TryGetValue(peerId, out var player))
+      return player;
+
+    return null;
+  }
+
+  private string _ownerId;
+  private string _localId;
+
+  public void SetOwnerAndLocal(string ownerId, string localId)
+  {
+    _ownerId = ownerId;
+    _localId = localId;
+  }
+
+  public RagonPlayer AddPlayer(ushort peerId, string playerId, string playerName)
+  {
+    if (_playersById.ContainsKey(playerId))
+      return null;
+
+    var isOwner = playerId == _ownerId;
+    var isLocal = playerId == _localId;
+
+    RagonLog.Trace($"Added player {peerId}|{playerId}|{playerName} IsOwner: {isOwner} isLocal: {isLocal}");
+
+    var player = new RagonPlayer(peerId, playerId, playerName, isOwner, isLocal);
+
+    if (player.IsLocal)
+      Local = player;
+
+    if (player.IsRoomOwner)
+      Owner = player;
+
+    _players.Add(player);
+    _playersById.Add(player.Id, player);
+    _playersByConnection.Add(player.PeerId, player);
+    
+    return player;
+  }
+
+  public void RemovePlayer(string playerId)
+  {
+    if (_playersById.TryGetValue(playerId, out var player))
+    {
+      _players.Remove(player);
+      _playersById.Remove(playerId);
+      _playersByConnection.Remove(player.PeerId);
+    }
+  }
+
+  public void OnOwnershipChanged(ushort playerPeerId)
+  {
+    foreach (var player in _players)
+    {
+      if (player.PeerId == playerPeerId)
+      {
+        Owner = player;
+        Owner.IsRoomOwner = true;
+      }
+    }
+  }
+
+
+  public void Cleanup()
+  {
+    _players.Clear();
+    _playersByConnection.Clear();
+    _playersById.Clear();
+  }
+
+  public void Dump()
+  {
+    RagonLog.Trace("Players: ");
+    RagonLog.Trace("[Connection] [ID] [Name]");
+    foreach (var player in _players)
+    {
+      RagonLog.Trace($"[{player.PeerId}] {player.Id} {player.Name}");
+    }
+  }
+}

Ragon.Client/Sources/RagonRoom.cs

@@ -0,0 +1,199 @@
+/*
+ * 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.
+ * 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 RagonRoom
+  {
+    private class EventSubscription : IDisposable
+    {
+      private List<Action<RagonPlayer, IRagonEvent>> _callbacks;
+      private List<Action<RagonPlayer, IRagonEvent>> _localCallbacks;
+      private Action<RagonPlayer, IRagonEvent> _callback;
+
+      public EventSubscription(
+        List<Action<RagonPlayer, IRagonEvent>> callbacks,
+        List<Action<RagonPlayer, IRagonEvent>> localCallbacks,
+        Action<RagonPlayer, IRagonEvent> callback)
+      {
+        _callbacks = callbacks;
+        _localCallbacks = localCallbacks;
+        _callback = callback;
+      }
+
+      public void Dispose()
+      {
+        _callbacks?.Remove(_callback);
+        _localCallbacks?.Remove(_callback);
+
+        _callbacks = null!;
+        _localCallbacks = null!;
+        _callback = null!;
+      }
+    }
+
+    private delegate void OnEventDelegate(RagonPlayer player, RagonStream serializer);
+
+    private readonly RagonClient _client;
+    private readonly RagonPlayerCache _playerCache;
+    private RoomParameters _parameters;
+    private RagonUserData _userData;
+
+    public string Id => _parameters.RoomId;
+    public int MinPlayers => _parameters.Min;
+    public int MaxPlayers => _parameters.Max;
+
+    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();
+
+    private readonly Dictionary<int, List<Action<RagonPlayer, IRagonEvent>>> _localListeners = new();
+
+    private readonly Dictionary<int, List<Action<RagonPlayer, IRagonEvent>>> _listeners = new();
+    
+    public RagonRoom(RagonClient client, RagonPlayerCache playerCache)
+    {
+      _client = client;
+      _playerCache = playerCache;
+      
+    }
+
+    public void Reset(RoomParameters parameters)
+    {
+      Clear();
+    
+      _userData = new RagonUserData();
+      _parameters = parameters;
+      _playerCache.Cleanup();
+    }
+    
+    internal void HandleEvent(ushort eventCode, RagonPlayer caller, RagonStream buffer)
+    {
+      if (_events.TryGetValue(eventCode, out var evnt))
+        evnt?.Invoke(caller, buffer);
+      else
+        RagonLog.Warn($"Handler event {Id} with eventCode {eventCode} not defined");
+    }
+
+    internal void HandleUserData(RagonStream buffer)
+    {
+      _userData.Read(buffer);
+    }
+
+    public IDisposable OnEvent<TEvent>(Action<RagonPlayer, TEvent> callback) where TEvent : IRagonEvent, new()
+    {
+      var t = new TEvent();
+      var eventCode = _client.Event.GetEventCode(t);
+      var action = (RagonPlayer player, IRagonEvent eventData) => callback.Invoke(player, (TEvent)eventData);
+      
+      if (!_listeners.TryGetValue(eventCode, out var callbacks))
+      {
+        callbacks = new List<Action<RagonPlayer, IRagonEvent>>();
+        _listeners.Add(eventCode, callbacks);
+      }
+
+      if (!_localListeners.TryGetValue(eventCode, out var localCallbacks))
+      {
+        localCallbacks = new List<Action<RagonPlayer, IRagonEvent>>();
+        _localListeners.Add(eventCode, localCallbacks);
+      }
+
+      callbacks.Add(action);
+      localCallbacks.Add(action);
+
+      if (!_events.ContainsKey(eventCode))
+      {
+        _events.Add(eventCode, (player, serializer) =>
+        {
+          t.Deserialize(serializer);
+
+          foreach (var callbackListener in callbacks)
+            callbackListener.Invoke(player, t);
+        });
+      }
+
+      return new EventSubscription(callbacks, localCallbacks, action);
+    }
+
+    public void ReplicateEvent<TEvent>(TEvent evnt, RagonTarget target, RagonReplicationMode replicationMode)
+      where TEvent : IRagonEvent, new()
+    {
+      var evntId = _client.Event.GetEventCode(evnt);
+      var buffer = _client.Buffer;
+
+      {
+        if (replicationMode == RagonReplicationMode.Local &&
+            _localListeners.TryGetValue(evntId, out var localListeners))
+        {
+          foreach (var listener in localListeners)
+            listener.Invoke(_client.Room.Local, evnt);
+          return;
+        }
+      }
+
+      {
+        if (replicationMode == RagonReplicationMode.LocalAndServer &&
+            _localListeners.TryGetValue(evntId, out var localListeners))
+        {
+          foreach (var listener in localListeners)
+            listener.Invoke(_client.Room.Local, evnt);
+        }
+      }
+
+      buffer.Clear();
+      buffer.WriteOperation(RagonOperation.REPLICATE_ROOM_EVENT);
+      buffer.WriteUShort(evntId);
+      buffer.WriteByte((byte)replicationMode);
+      buffer.WriteByte((byte)target);
+
+      evnt.Serialize(buffer);
+
+      var sendData = buffer.ToArray();
+      _client.Reliable.Send(sendData);
+    }
+
+    public void ReplicateEvent<TEvent>(TEvent evnt, RagonPlayer target, RagonReplicationMode replicationMode)
+      where TEvent : IRagonEvent, new()
+    {
+      var evntId = _client.Event.GetEventCode(evnt);
+      var buffer = _client.Buffer;
+
+      buffer.Clear();
+      buffer.WriteOperation(RagonOperation.REPLICATE_ROOM_EVENT);
+      buffer.WriteUShort(evntId);
+      buffer.WriteByte((byte)replicationMode);
+      buffer.WriteByte((byte)RagonTarget.Player);
+      buffer.WriteUShort(target.PeerId);
+
+      evnt.Serialize(buffer);
+
+      var sendData = buffer.ToArray();
+      _client.Reliable.Send(sendData);
+    }
+
+    public void Clear()
+    {
+      _events.Clear();
+      _listeners.Clear();
+      _localListeners.Clear();
+    }
+  }
+}

Ragon.Client/Sources/RagonRoomInformation.cs

@@ -0,0 +1,12 @@
+namespace Ragon.Client
+{
+  public struct RagonRoomInformation
+  {
+    public string Id;
+    public string Scene;
+    public int PlayerMax;
+    public int PlayerMin;
+    public int PlayerCount;
+    public Dictionary<string, byte[]> Properties;
+  }
+}

Ragon.Client/Sources/RagonSession.cs

@@ -0,0 +1,109 @@
+/*
+ * 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.
+ * 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 RagonSession
+  {
+    private readonly RagonClient _client;
+    
+    private readonly RagonStream _buffer;
+
+    public RagonSession(RagonClient client, RagonStream buffer)
+    {
+      _client = client;
+      _buffer = buffer;
+    }
+
+    public void CreateOrJoin(string sessionName, int minPlayers, int maxPlayers)
+    {
+      var parameters = new RagonRoomParameters() { Min = minPlayers, Max = maxPlayers };
+      CreateOrJoin(parameters);
+    }
+
+    public void CreateOrJoin(RagonRoomParameters parameters)
+    {
+      _buffer.Clear();
+      _buffer.WriteOperation(RagonOperation.JOIN_OR_CREATE_ROOM);
+
+      parameters.Serialize(_buffer);
+
+      var sendData = _buffer.ToArray();
+      _client.Reliable.Send(sendData);
+    }
+
+    public void Create(string sessionName, int minPlayers, int maxPlayers)
+    {
+      Create(null, new RagonRoomParameters() { Min = minPlayers, Max = maxPlayers });
+    }
+
+    public void Create(string roomId, string sessionName, int minPlayers, int maxPlayers)
+    {
+      Create(roomId, new RagonRoomParameters() { Min = minPlayers, Max = maxPlayers });
+    }
+
+    public void Create(string roomId, RagonRoomParameters parameters)
+    {
+      _buffer.Clear();
+      _buffer.WriteOperation(RagonOperation.CREATE_ROOM);
+
+      if (roomId != null)
+      {
+        _buffer.WriteBool(true);
+        _buffer.WriteString(roomId);
+      }
+      else
+      {
+        _buffer.WriteBool(false);
+      }
+
+      parameters.Serialize(_buffer);
+
+      var sendData = _buffer.ToArray();
+      _client.Reliable.Send(sendData);
+    }
+
+    public void Leave()
+    {
+      var sendData = new[] { (byte)RagonOperation.LEAVE_ROOM };
+      _client.Reliable.Send(sendData);
+    }
+
+    public void Join(string roomId)
+    {
+      _buffer.Clear();
+      _buffer.WriteOperation(RagonOperation.JOIN_ROOM);
+      _buffer.WriteString(roomId);
+
+      var sendData = _buffer.ToArray();
+      _client.Reliable.Send(sendData);
+    }
+
+    public void AuthorizeWithKey(string key, string playerName, string payload = "")
+    {
+      _buffer.Clear();
+      _buffer.WriteOperation(RagonOperation.AUTHORIZE);
+      _buffer.WriteString(key);
+      _buffer.WriteString(playerName);
+      _buffer.WriteString(payload);
+
+      var sendData = _buffer.ToArray();
+      _client.Reliable.Send(sendData);
+    }
+  }
+}

Ragon.Client/Sources/RagonState.cs

@@ -0,0 +1,26 @@
+/*
+ * 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.
+ * 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 enum RagonState
+  {
+    DISCONNECTED,
+    CONNECTED,
+    ROOM,
+    LOBBY,
+  }
+}

Ragon.Client/Sources/RagonUserData.cs

@@ -0,0 +1,104 @@
+/*
+ * 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;
+
+        if (!_changesCache.ContainsKey(key))
+        {
+          _localChanges.Add(key);
+          _changesCache.Add(key, true);
+        }
+      }
+    }
+
+    public void Remove(string key)
+    {
+      if (_properties.Remove(key))
+      {
+        if (!_changesCache.ContainsKey(key))
+        {
+          _localChanges.Add(key);
+          _changesCache.Add(key, true);
+        }
+      }
+    }
+
+    public bool Dirty => _localChanges.Count > 0;
+
+    private readonly List<string> _localChanges = new();
+    private readonly Dictionary<string, bool> _changesCache = new();
+    private readonly Dictionary<string, byte[]> _properties = new();
+
+    public RagonUserData()
+    {
+    }
+
+    public IReadOnlyList<string> Read(RagonStream buffer)
+    {
+      var len = buffer.ReadUShort();
+      var changes = new List<string>(len);
+      for (int i = 0; i < len; i++)
+      {
+        var key = buffer.ReadString();
+        var valueSize = buffer.ReadUShort();
+        if (valueSize > 0)
+        {
+          var value = buffer.ReadBinary(valueSize);
+          _properties[key] = value;
+        }
+        else
+        {
+          _properties.Remove(key);
+        }
+
+        changes.Add(key);
+      }
+
+      return changes;
+    }
+
+    public void Write(RagonStream buffer)
+    {
+      buffer.WriteUShort((ushort)_localChanges.Count);
+      foreach (var propertyChanged in _localChanges)
+      {
+        buffer.WriteString(propertyChanged);
+        if (_properties.TryGetValue(propertyChanged, out var property))
+        {
+          buffer.WriteUShort((ushort)property.Length);
+          buffer.WriteBinary(property);
+        }
+        else
+        {
+          buffer.WriteUShort(0);
+        }
+      }
+
+      _localChanges.Clear();
+    }
+  }
+}

Ragon.Client/Sources/RagonUserDataReadOnly.cs

@@ -0,0 +1,67 @@
+/*
+ * 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(RagonStream buffer)
+  {
+  
+  }
+
+  public IReadOnlyList<string> Read(RagonStream buffer)
+  {
+    var len = buffer.ReadUShort();
+    var changes = new List<string>(len);
+    for (int i = 0; i < len; i++)
+    {
+      var key = buffer.ReadString();
+      var valueSize = buffer.ReadUShort();  
+      if (valueSize > 0)
+      {
+        var value = buffer.ReadBinary(valueSize);
+        _properties[key] = value;
+          
+      }
+      else
+      {
+        _properties.Remove(key);
+      }
+        
+      changes.Add(key);
+    }
+
+    return changes;
+  }
+}

Ragon.Common/Ragon.Common.csproj

@@ -1,21 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-    <PropertyGroup>
-        <ImplicitUsings>disable</ImplicitUsings>
-        <Nullable>disable</Nullable>
-        <LangVersion>8</LangVersion>
-        <TargetFramework>netstandard2.1</TargetFramework>
-    </PropertyGroup>
-
-    <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
-      <OutputPath></OutputPath>
-      <DebugSymbols>false</DebugSymbols>
-      <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-      <DefineConstants>TRACE;NETSTACK_SPAN</DefineConstants>
-    </PropertyGroup>
-
-    <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
-      <OutputPath></OutputPath>
-      <DefineConstants>TRACE;NETSTACK_SPAN</DefineConstants>
-    </PropertyGroup>
-</Project>

Ragon.Common/Sources/RagonAuthority.cs

@@ -1,9 +0,0 @@
-namespace Ragon.Common
-{
-  public enum RagonAuthority: byte
-  {
-    NONE,
-    OWNER_ONLY,
-    ALL,
-  }
-}

Ragon.Common/Sources/RagonOperation.cs

@@ -1,31 +0,0 @@
-namespace Ragon.Common
-{
-  public enum RagonOperation: byte
-  {
-    AUTHORIZE,
-    AUTHORIZED_SUCCESS,
-    AUTHORIZED_FAILED,
-    
-    JOIN_OR_CREATE_ROOM,
-    CREATE_ROOM,
-    JOIN_ROOM,
-    LEAVE_ROOM,
-    OWNERSHIP_CHANGED,
-    JOIN_SUCCESS,
-    JOIN_FAILED,
-    
-    LOAD_SCENE,
-    SCENE_LOADED,
-
-    PLAYER_JOINED,
-    PLAYER_LEAVED,
-    
-    CREATE_ENTITY,
-    DESTROY_ENTITY,
-    SNAPSHOT,
-    
-    REPLICATE_ENTITY_STATE,
-    REPLICATE_ENTITY_EVENT,
-    REPLICATE_EVENT,
-  }
-}

Ragon.Common/Sources/RagonReplicationMode.cs

@@ -1,10 +0,0 @@
-namespace Ragon.Common
-{
-  public enum RagonReplicationMode: byte
-  {
-    LOCAL,
-    SERVER,
-    LOCAL_AND_SERVER,
-    BUFFERED,
-  }
-}

Ragon.Common/Sources/RagonRoomParameters.cs

@@ -1,24 +0,0 @@
-
-namespace Ragon.Common
-{
-  public class RagonRoomParameters: IRagonSerializable
-  {
-    public string Map { get; set; }
-    public int Min { get; set; } 
-    public int Max { get; set; } 
-    
-    public void Serialize(RagonSerializer buffer)
-    {
-      buffer.WriteString(Map);
-      buffer.WriteInt(Min);
-      buffer.WriteInt(Max);
-    }
-
-    public void Deserialize(RagonSerializer buffer)
-    {
-      Map = buffer.ReadString();
-      Min = buffer.ReadInt();
-      Max = buffer.ReadInt();
-    }
-  }
-}

Ragon.Common/Sources/RagonSerializable.cs

@@ -1,8 +0,0 @@
-namespace Ragon.Common
-{
-  public interface IRagonSerializable
-  {
-    public void Serialize(RagonSerializer serializer);
-    public void Deserialize(RagonSerializer serializer);
-  }
-}

Ragon.Common/Sources/RagonTarget.cs

@@ -1,9 +0,0 @@
-namespace Ragon.Common
-{
-  public enum RagonTarget: byte
-  {
-    OWNER,
-    EXCEPT_OWNER,
-    ALL,
-  }
-}

Ragon.Protocol/Ragon.Protocol.csproj

@@ -0,0 +1,32 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <ImplicitUsings>disable</ImplicitUsings>
+        <Nullable>disable</Nullable>
+        <LangVersion>8</LangVersion>
+        <RootNamespace>Ragon.Common</RootNamespace>
+        <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
+        <Title>Ragon.Protocol</Title>
+        <Copyright>Eduard Kargin</Copyright>
+        <Version>1.4.0</Version>
+        <Authors>Eduard Kargin</Authors>
+        <PackageProjectUrl>https://ragon.io</PackageProjectUrl>
+        <RepositoryUrl>https://github.com/edmand46/Ragon</RepositoryUrl>
+        <RepositoryType>Source</RepositoryType>
+        <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>
+        <TargetFramework>netstandard2.0</TargetFramework>
+    </PropertyGroup>
+
+    <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
+      <OutputPath></OutputPath>
+      <DebugSymbols>false</DebugSymbols>
+      <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+      <DefineConstants>TRACE;NETSTACK_SPAN</DefineConstants>
+    </PropertyGroup>
+
+    <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
+      <OutputPath></OutputPath>
+      <DefineConstants>TRACE;</DefineConstants>
+      <DebugType>none</DebugType>
+    </PropertyGroup>
+</Project>

Ragon.Protocol/Sources/RagonAuthority.cs

@@ -0,0 +1,26 @@
+/*
+ * 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.
+ * 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.Protocol
+{
+  public enum RagonAuthority: byte
+  {
+    None,
+    OwnerOnly,
+    All,
+  }
+}

Ragon.Protocol/Sources/RagonBuffer.cs

@@ -0,0 +1,501 @@
+/*
+ * 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.
+ * 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.
+ */
+
+/*
+ *  Copyright (c) 2018 Stanislav Denisov, Maxim Munnig
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a copy
+ *  of this software and associated documentation files (the "Software"), to deal
+ *  in the Software without restriction, including without limitation the rights
+ *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *  copies of the Software, and to permit persons to whom the Software is
+ *  furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in all
+ *  copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ *  SOFTWARE.
+ */
+
+/*
+ *  Copyright (c) 2018 Alexander Shoulson
+ *
+ *  This software is provided 'as-is', without any express or implied
+ *  warranty. In no event will the authors be held liable for any damages
+ *  arising from the use of this software.
+ *  Permission is granted to anyone to use this software for any purpose,
+ *  including commercial applications, and to alter it and redistribute it
+ *  freely, subject to the following restrictions:
+ *
+ *  1. The origin of this software must not be misrepresented; you must not
+ *     claim that you wrote the original software. If you use this software
+ *     in a product, an acknowledgment in the product documentation would be
+ *     appreciated but is not required.
+ *  2. Altered source versions must be plainly marked as such, and must not be
+ *     misrepresented as being the original software.
+ *  3. This notice may not be removed or altered from any source distribution.
+ */
+
+
+using System;
+using System.Diagnostics;
+using System.Runtime.CompilerServices;
+using System.Text;
+
+namespace Ragon.Protocol
+{
+  public class RagonBuffer
+  {
+    private int _read;
+    private int _write;
+    private uint[] _buckets;
+    private byte[] _rawData;
+    private readonly UTF8Encoding _utf8Encoding = new UTF8Encoding(false, true);
+
+    public byte[] RawData => _rawData;
+    public int ReadOffset => _read;
+    public int WriteOffset => _write;
+    public int Length => ((_write - 1) >> 3) + 1;
+    public int Capacity => _write - _read - 1;
+
+    public RagonBuffer(int capacity = 128)
+    {
+      _buckets = new uint[capacity];
+      _rawData = Array.Empty<byte>();
+      _read = 0;
+      _write = 0;
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public void WriteBool(bool value)
+    {
+      Write(value ? 1u : 0u, 1);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public bool ReadBool()
+    {
+      return Read(1) == 1u;
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public void WriteByte(byte value)
+    {
+      Write(value, 8);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public byte ReadByte()
+    {
+      return (byte)Read(8);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public void WriteOperation(RagonOperation operation)
+    {
+      Write((byte)operation, 8);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public RagonOperation ReadOperation()
+    {
+      return (RagonOperation)Read(8);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public void WriteFloat(float value)
+    {
+      var bytes = BitConverter.GetBytes(value);
+      WriteBytes(bytes);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public float ReadFloat()
+    {
+      var bytes = ReadBytes(4);
+      var value = BitConverter.ToSingle(bytes, 0);
+      return value;
+    }
+    
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public void WriteFloat(float value, float min, float max, float precision)
+    {
+      var requiredBits = DeBruijn.Log2((uint)((max - min) * (1.0f / precision) + 0.5f)) + 1;
+      var mask = (uint)((1L << requiredBits) - 1);
+      var compressedValue = (uint)((value - min) * (1f / precision) + 0.5f) & mask;
+
+      Write(compressedValue, requiredBits);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public float ReadFloat(float min, float max, float precision)
+    {
+      var requiredBits = DeBruijn.Log2((uint)((max - min) * (1.0f / precision) + 0.5f)) + 1;
+      var compressedValue = Read(requiredBits);
+
+      float adjusted = compressedValue * precision + min;
+
+      if (adjusted < min)
+        adjusted = min;
+      else if (adjusted > max)
+        adjusted = max;
+
+      return adjusted;
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public void WriteInt(int value)
+    {
+      var bytes = BitConverter.GetBytes(value);
+      
+      WriteBytes(bytes);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public int ReadInt()
+    {
+      var bytes = ReadBytes(4);
+      var value = BitConverter.ToInt32(bytes, 0);
+
+      return value;
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public void WriteInt(int value, int min, int max)
+    {
+      var maxValue = Math.Max(Math.Abs(min), Math.Abs(max));
+      var requiredBits = Bits.Compute(maxValue);
+      uint compressedValue = (uint)((value << 1) ^ (value >> 31));
+
+      Write(compressedValue, requiredBits);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public int ReadInt(int min, int max)
+    {
+      var maxValue = Math.Max(Math.Abs(min), Math.Abs(max));
+      var requiredBits = Bits.Compute(maxValue);
+      var compressedValue = Read(requiredBits);
+      var value = (int)((compressedValue >> 1) ^ (-(int)(compressedValue & 1)));
+
+      return value;
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public void WriteUShort(ushort value)
+    {
+      Write(value, 16);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public ushort ReadUShort()
+    {
+      return (ushort)Read(16);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public void WriteString(string str)
+    {
+      var data = _utf8Encoding.GetBytes(str);
+      var len = (uint)data.Length;
+      Write(len, 16);
+      WriteBytes(data);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public string ReadString()
+    {
+      var len = (int)Read(16);
+      var data = ReadBytes(len);
+      var str = _utf8Encoding.GetString(data);
+      return str;
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public uint Read(int numBits, int offset)
+    {
+      var currentBucketIndex = offset >> 5;
+      var used = offset & 0x0000001F;
+
+      var chunkMask = ((1UL << numBits) - 1) << used;
+      var scratch = (ulong)_buckets[currentBucketIndex];
+
+      if (currentBucketIndex + 1 < _buckets.Length)
+        scratch |= (ulong)_buckets[currentBucketIndex + 1] << 32;
+
+      var result = (scratch & chunkMask) >> used;
+
+      return (uint)result;
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public void Write(uint value, int numBits, int offset)
+    {
+      Debug.Assert(!(numBits < 0));
+      Debug.Assert(!(numBits > 32));
+
+      var index = offset >> 5;
+      var used = offset & 0x0000001F;
+
+      var valueMask = (1UL << numBits) - 1;
+      var prepared = (value & valueMask) << used;
+      var scratch = _buckets[index] | (ulong)_buckets[index + 1] << 32;
+      var result = scratch | prepared;
+
+      _buckets[index] = (uint)result;
+      _buckets[index + 1] = (uint)(result >> 32);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public void Write(uint value, int numBits = 16)
+    {
+      var currentBucketIndex = _write >> 5;
+      var used = _write & 0x0000001F;
+      var mask = (1UL << used) - 1;
+      var scratch = _buckets[currentBucketIndex] & mask;
+      var result = scratch | ((ulong)value << used);
+
+      if (currentBucketIndex + 1 >= _buckets.Length)
+        Resize(1);
+
+      _buckets[currentBucketIndex] = (uint)result;
+      _buckets[currentBucketIndex + 1] = (uint)(result >> 32);
+
+      _write += numBits;
+    }
+    
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public uint Read(int numBits = 16)
+    {
+      var currentBucketIndex = _read >> 5;
+      var used = _read & 0x0000001F;
+
+      var chunkMask = ((1UL << numBits) - 1) << used;
+      var scratch = (ulong)_buckets[currentBucketIndex];
+
+      if (currentBucketIndex + 1 < _buckets.Length)
+        scratch |= (ulong)_buckets[currentBucketIndex + 1] << 32;
+
+      var result = (scratch & chunkMask) >> used;
+
+      _read += numBits;
+
+      return (uint)result;
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    [Obsolete("Do not use this method, will be removed")]
+    public void WriteBytes(byte[] data)
+    {
+      var len = data.Length;
+      for (int i = 0; i < len; i++)
+        Write(data[i], 8);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    [Obsolete("Do not use this method, will be removed")]
+    public byte[] ReadBytes(int len)
+    {
+      var data = new byte[len];
+      for (int i = 0; i < len; i++)
+        data[i] = (byte)Read(8);
+
+      return data;
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public void ReadArray(uint[] data, int size)
+    {
+      var used = _read & 0x0000001F;
+      var index = _read >> 5;
+      var limit = (size + 32 - 1) / 32;
+      var capacity = size;
+
+      if (index + limit >= _buckets.Length)
+        Resize(size);
+      
+      for (int i = 0; i < limit; i++)
+      {
+        var dataSize = capacity > 32 ? 32 : capacity;
+        var mask = (1UL << dataSize) - 1;
+        var bucketRaw = (ulong)_buckets[index];
+        if (index + 1 < _buckets.Length)
+          bucketRaw |= (ulong)_buckets[index + 1] << 32;
+
+        var bucket = bucketRaw >> used;
+        var result = bucket & mask;
+
+        data[i] = (uint)result;
+        if (i + 1 < data.Length)
+          data[i + 1] = (uint)(result >> 32);
+
+        index += 1;
+        capacity -= dataSize;
+      }
+
+      _read += size;
+    }
+
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public void WriteArray(uint[] data, int size)
+    {
+      var used = _write & 0x0000001F;
+      var index = _write >> 5;
+      var limit = (size + 32 - 1) / 32;
+
+      if (index + limit >= _buckets.Length)
+        Resize(size);
+
+      for (var i = 0; i < limit; i += 1)
+      {
+        var prepared = (ulong)data[i] << used;
+        var mask = (1UL << used) - 1;
+        var scratch = _buckets[index] & mask;
+        var result = scratch | prepared;
+
+        _buckets[index] = (uint)result;
+        _buckets[index + 1] = (uint)(result >> 32);
+
+        index += 1;
+      }
+
+      _write += size;
+    }
+
+    public void Clear()
+    {
+      _read = 0;
+      _write = 0;
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public void CopyFrom(RagonBuffer buffer, int size)
+    {
+      WriteArray(buffer._buckets, size);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public void ToBuffer(RagonBuffer buffer, int size)
+    {
+      ReadArray(buffer._buckets, size);
+    }
+
+    public void FromArray(byte[] data)
+    {
+      var length = data.Length;
+      var bucketsCount = length / 4 + 1;
+
+      if (_buckets.Length < bucketsCount)
+        _buckets = new uint[bucketsCount];
+
+      for (var i = 0; i < bucketsCount; i++)
+      {
+        var dataIdx = i * 4;
+        var bucket = 0u;
+
+        if (dataIdx < length)
+          bucket = data[dataIdx];
+
+        if (dataIdx + 1 < length)
+          bucket |= (uint)data[dataIdx + 1] << 8;
+
+        if (dataIdx + 2 < length)
+          bucket |= (uint)data[dataIdx + 2] << 16;
+
+        if (dataIdx + 3 < length)
+          bucket |= (uint)data[dataIdx + 3] << 24;
+
+        _buckets[i] = bucket;
+      }
+
+      int positionInByte = Bits.FindBitPosition(data[length - 1]);
+
+      _write = ((length - 1) * 8) + positionInByte;
+      _read = 0;
+      _rawData = data;
+    }
+
+    public byte[] ToArray()
+    {
+      Write(1, 1);
+
+      var data = new byte[Length];
+      int bucketsCount = (_write >> 5) + 1;
+      int length = data.Length;
+
+      for (int i = 0; i < bucketsCount; i++)
+      {
+        int dataIdx = i * 4;
+        uint bucket = _buckets[i];
+
+        if (dataIdx < length)
+          data[dataIdx] = (byte)(bucket);
+
+        if (dataIdx + 1 < length)
+          data[dataIdx + 1] = (byte)(bucket >> 8);
+
+        if (dataIdx + 2 < length)
+          data[dataIdx + 2] = (byte)(bucket >> 16);
+
+        if (dataIdx + 3 < length)
+          data[dataIdx + 3] = (byte)(bucket >> 24);
+      }
+
+      return data;
+    }
+
+    public void ToArray(byte[] outData)
+    {
+      Write(1, 1);
+
+      var bucketsCount = (_write >> 5) + 1;
+      var length = Length;
+
+      for (int i = 0; i < bucketsCount; i++)
+      {
+        var dataIdx = i * 4;
+        var bucket = _buckets[i];
+
+        if (dataIdx < length)
+          outData[dataIdx] = (byte)bucket;
+
+        if (dataIdx + 1 < length)
+          outData[dataIdx + 1] = (byte)(bucket >> 8);
+
+        if (dataIdx + 2 < length)
+          outData[dataIdx + 2] = (byte)(bucket >> 16);
+
+        if (dataIdx + 3 < length)
+          outData[dataIdx + 3] = (byte)(bucket >> 24);
+      }
+    }
+
+    private void Resize(int capacity)
+    {
+      var buckets = new uint[_buckets.Length * 2 + capacity];
+      Array.Copy(_buckets, buckets, _buckets.Length);
+      _buckets = buckets;
+    }
+  }
+}

Ragon.Protocol/Sources/RagonDisconnect.cs

@@ -0,0 +1,9 @@
+namespace Ragon.Protocol
+{
+  public enum RagonDisconnect
+  {
+    MANUAL,
+    TIMEOUT,
+    SERVER,
+  }
+}

Ragon.Protocol/Sources/RagonOperation.cs

@@ -0,0 +1,41 @@
+/*
+ * 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.
+ * 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.Protocol
+{
+  public enum RagonOperation : byte
+  {
+    AUTHORIZE = 1,
+    AUTHORIZED_SUCCESS = 2,
+    AUTHORIZED_FAILED = 3,
+    JOIN_OR_CREATE_ROOM = 4,
+    CREATE_ROOM = 5,
+    JOIN_ROOM = 6,
+    LEAVE_ROOM = 7,
+    OWNERSHIP_ROOM_CHANGED = 9,
+    JOIN_SUCCESS = 10,
+    JOIN_FAILED = 11,
+    PLAYER_JOINED = 14,
+    PLAYER_LEAVED = 15,
+    REPLICATE_ROOM_EVENT = 22,
+    TRANSFER_ROOM_OWNERSHIP = 23,
+    TIMESTAMP_SYNCHRONIZATION = 25,
+    ROOM_LIST_UPDATED = 26,
+    PLAYER_DATA_UPDATED = 27,
+    ROOM_DATA_UPDATED = 28,
+  }
+}

Ragon.Protocol/Sources/RagonReplicationMode.cs

@@ -0,0 +1,27 @@
+/*
+ * 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.
+ * 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.Protocol
+{
+  public enum RagonReplicationMode: byte
+  {
+    Local,
+    Server,
+    LocalAndServer,
+    Buffered,
+  }
+}

Ragon.Protocol/Sources/RagonRoomParameters.cs

@@ -0,0 +1,37 @@
+/*
+ * 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.
+ * 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.Protocol
+{
+  public class RagonRoomParameters
+  {
+    public int Min { get; set; } 
+    public int Max { get; set; } 
+    
+    public void Serialize(RagonStream buffer)
+    {
+      buffer.WriteInt(Min);
+      buffer.WriteInt(Max);
+    }
+
+    public void Deserialize(RagonStream buffer)
+    {
+      Min = buffer.ReadInt();
+      Max = buffer.ReadInt();
+    }
+  }
+}

Ragon.Protocol/Sources/RagonSerializable.cs

@@ -0,0 +1,25 @@
+/*
+ * 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.
+ * 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.Protocol
+{
+  public interface IRagonSerializable
+  {
+    public void Serialize(RagonStream buffer);
+    public void Deserialize(RagonStream buffer);
+  }
+}

Ragon.Protocol/Sources/RagonStream.cs

@@ -3,8 +3,7 @@ using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 using System.Text;
 
-
-namespace Ragon.Common
+namespace Ragon.Protocol
 {
   [StructLayout(LayoutKind.Explicit)]
   internal struct ValueConverter
@@ -22,16 +21,16 @@ namespace Ragon.Common
     [FieldOffset(7)] public byte Byte7;
   }
 
-  public class RagonSerializer
+  public class RagonStream
   {
     private byte[] _data;
     private int _offset;
     private int _size;
-    
+
     public int Lenght => _offset;
     public int Size => _size - _offset;
 
-    public RagonSerializer(int capacity = 256)
+    public RagonStream(int capacity = 256)
     {
       _data = new byte[capacity];
       _offset = 0;
@@ -44,7 +43,7 @@ namespace Ragon.Common
       _size = _offset;
       _offset = 0;
     }
-    
+
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public void AddOffset(int offset)
     {
@@ -72,7 +71,7 @@ namespace Ragon.Common
     public int WriteBool(bool value)
     {
       ResizeIfNeed(1);
-      _data[_offset] = value ? (byte) 1 : (byte) 0;
+      _data[_offset] = value ? (byte)1 : (byte)0;
       _offset += 1;
       return 1;
     }
@@ -91,7 +90,7 @@ namespace Ragon.Common
     public int WriteInt(int value)
     {
       ResizeIfNeed(4);
-      var converter = new ValueConverter() {Int = value};
+      var converter = new ValueConverter() { Int = value };
       _data[_offset] = converter.Byte0;
       _data[_offset + 1] = converter.Byte1;
       _data[_offset + 2] = converter.Byte2;
@@ -99,12 +98,12 @@ namespace Ragon.Common
       _offset += 4;
       return 4;
     }
-    
+
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public int WriteInt(int value, int offset)
     {
       ResizeIfNeed(4);
-      var converter = new ValueConverter() {Int = value};
+      var converter = new ValueConverter() { Int = value };
       _data[offset] = converter.Byte0;
       _data[offset + 1] = converter.Byte1;
       _data[offset + 2] = converter.Byte2;
@@ -115,7 +114,8 @@ namespace Ragon.Common
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public int ReadInt()
     {
-      var converter = new ValueConverter {Byte0 = _data[_offset], Byte1 = _data[_offset + 1], Byte2 = _data[_offset + 2], Byte3 = _data[_offset + 3]};
+      var converter = new ValueConverter
+        { Byte0 = _data[_offset], Byte1 = _data[_offset + 1], Byte2 = _data[_offset + 2], Byte3 = _data[_offset + 3] };
       _offset += 4;
       return converter.Int;
     }
@@ -127,11 +127,11 @@ namespace Ragon.Common
       WriteLong(value, _offset);
       _offset += 8;
     }
-    
+
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public int WriteLong(long value, int offset)
     {
-      var converter = new ValueConverter() {Long = value};
+      var converter = new ValueConverter() { Long = value };
       _data[offset] = converter.Byte0;
       _data[offset + 1] = converter.Byte1;
       _data[offset + 2] = converter.Byte2;
@@ -164,7 +164,7 @@ namespace Ragon.Common
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public int WriteFloat(float value)
     {
-      var converter = new ValueConverter() {Float = value};
+      var converter = new ValueConverter() { Float = value };
       WriteInt(converter.Int);
       return 4;
     }
@@ -173,7 +173,7 @@ namespace Ragon.Common
     public float ReadFloat()
     {
       var rawValue = ReadInt();
-      var converter = new ValueConverter() {Int = rawValue};
+      var converter = new ValueConverter() { Int = rawValue };
       var value = converter.Float;
       return value;
     }
@@ -181,105 +181,94 @@ namespace Ragon.Common
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public int WriteString(string value)
     {
-      var rawData = Encoding.UTF8.GetBytes(value).AsSpan();
-      ResizeIfNeed(2 + rawData.Length);
-      WriteUShort((ushort) rawData.Length);
-      var data = _data.AsSpan().Slice(_offset, rawData.Length);
-      rawData.CopyTo(data);
-      _offset += rawData.Length;
+      var rawData = Encoding.UTF8.GetBytes(value);
+      var len = rawData.Length;
+      ResizeIfNeed(2 + len);
+      WriteUShort((ushort)len);
 
-      return rawData.Length + 2;
+      Buffer.BlockCopy(rawData, 0, _data, _offset, len);
+      
+      _offset += len;
+
+      return len + 2;
     }
 
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public string ReadString()
     {
-      var lenght = ReadUShort();
-      var stringRaw = _data.AsSpan().Slice(_offset, lenght);
-      var str = Encoding.UTF8.GetString(stringRaw);
-      _offset += lenght;
+      var len = ReadUShort();
+      var rawData = new byte[len];
+
+      Buffer.BlockCopy(_data, _offset, rawData, 0, len);
+
+      var str = Encoding.UTF8.GetString(rawData);
+      _offset += len;
       return str;
     }
 
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    public ReadOnlySpan<byte> ReadData(int lenght)
+    public byte[] ReadBinary(int len)
     {
-      var data = _data.AsSpan();
-      var payloadData = data.Slice(_offset, lenght);
+      if (len >= _data.Length)
+        return Array.Empty<byte>();
 
-      _offset += payloadData.Length;
-      return payloadData;
+      var payload = new byte[len];
+      Buffer.BlockCopy(_data, _offset, payload, 0, len);
+
+      _offset += len;
+
+      return payload;
     }
 
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    public int WriteData(ref ReadOnlySpan<byte> payload)
+    public void WriteBinary(byte[] payload)
     {
       ResizeIfNeed(payload.Length);
 
-      var data = _data.AsSpan();
-      var payloadData = data.Slice(_offset, payload.Length);
+      Array.Copy(payload, 0, _data, _offset, payload.Length);
 
-      payload.CopyTo(payloadData);
       _offset += payload.Length;
-      return payload.Length;
     }
 
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    public Span<byte> GetWritableData(int lenght)
-    {
-      ResizeIfNeed(lenght);
-
-      var data = _data.AsSpan();
-      var payloadData = data.Slice(_offset, lenght);
-
-      _offset += lenght;
-      return payloadData;
-    }
-
-    [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    public int WriteOperation(RagonOperation ragonOperation)
+    public void WriteOperation(RagonOperation operation)
     {
       ResizeIfNeed(1);
 
-      _data[_offset] = (byte) ragonOperation;
+      _data[_offset] = (byte)operation;
       _offset += 1;
-
-      return 1;
     }
 
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public RagonOperation ReadOperation()
     {
-      var op = (RagonOperation) _data[_offset];
+      var op = (RagonOperation)_data[_offset];
       _offset += 1;
       return op;
     }
 
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    public int WriteUShort(ushort value)
+    public void WriteUShort(ushort value)
     {
       ResizeIfNeed(2);
 
-      _data[_offset] = (byte) (value & 0x00FF);
-      _data[_offset + 1] = (byte) ((value & 0xFF00) >> 8);
+      _data[_offset] = (byte)(value & 0x00FF);
+      _data[_offset + 1] = (byte)((value & 0xFF00) >> 8);
       _offset += 2;
-
-      return 2;
     }
-    
+
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    public int WriteUShort(ushort value, int offset)
+    public void WriteUShort(ushort value, int offset)
     {
       ResizeIfNeed(2);
-      _data[offset] = (byte) (value & 0x00FF);
-      _data[offset + 1] = (byte) ((value & 0xFF00) >> 8);
-      return 2;
+      _data[offset] = (byte)(value & 0x00FF);
+      _data[offset + 1] = (byte)((value & 0xFF00) >> 8);
     }
 
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public ushort ReadUShort()
     {
-      var value = (ushort) (_data[_offset] + (_data[_offset + 1] << 8));
+      var value = (ushort)(_data[_offset] + (_data[_offset + 1] << 8));
       _offset += 2;
       return value;
     }
@@ -290,21 +279,6 @@ namespace Ragon.Common
       _size = 0;
     }
 
-    public void ToSpan(ref Span<byte> data)
-    {
-      var span = _data.AsSpan();
-      var dataSpan = span.Slice(0, _offset);
-      dataSpan.CopyTo(data);
-    }
-
-    public void FromSpan(ref ReadOnlySpan<byte> data)
-    {
-      Clear();
-      ResizeIfNeed(data.Length);
-      var dataSpan = _data.AsSpan();
-      data.CopyTo(dataSpan);
-      _size = data.Length;
-    }
 
     public void FromArray(byte[] data)
     {

Ragon.Protocol/Sources/RagonTarget.cs

@@ -0,0 +1,28 @@
+/*
+ * 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.
+ * 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.Protocol
+{
+  public enum RagonTarget: byte
+  {
+    Owner,
+    ExceptOwner,
+    ExceptInvoker,
+    All,
+    Player,
+  }
+}

Ragon.Protocol/Sources/RagonUtils.cs

@@ -0,0 +1,105 @@
+/*
+ * 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.
+ * 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 System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+namespace Ragon.Protocol
+{
+  [StructLayout(LayoutKind.Explicit)]
+  public struct DoubleToUInt
+  {
+    [FieldOffset(0)]
+    public double Double;
+    
+    [FieldOffset(0)]
+    public uint Int0;
+    
+    [FieldOffset(4)]
+    public uint Int1;
+  }
+  
+  public static class RagonTime {
+    public static double CurrentTimestamp()
+    {
+      var currentTime = System.DateTime.UtcNow.ToUniversalTime().Subtract(
+        new System.DateTime(1970, 1, 1, 0, 0, 0, System.DateTimeKind.Utc)
+      ).TotalMilliseconds;
+      
+      return currentTime; 
+    }
+  }
+  
+  public static class DeBruijn
+  {
+    private static readonly int[] _lookup = new int[32]
+    {
+      0, 9, 1, 10, 13, 21, 2, 29, 11, 14, 16, 18, 22, 25, 3, 30,
+      8, 12, 20, 28, 15, 17, 24, 7, 19, 27, 23, 6, 26, 5, 4, 31
+    };
+
+    public static int Log2(uint value)
+    {
+      value |= value >> 1;
+      value |= value >> 2;
+      value |= value >> 4;
+      value |= value >> 8;
+      value |= value >> 16;
+
+      return _lookup[(value * 0x07C4ACDDU) >> 27];
+    }
+  }
+  
+  public static class Bits
+  {
+    static int[] _lookup = new int[256];
+
+    static Bits()
+    {
+      _lookup[0] = 0;
+      for (int i = 0; i < 256; i++)
+        _lookup[i] = (i & 1) + _lookup[i / 2];
+    }
+
+    [MethodImpl(256)]
+    public static int Compute(int value)
+    {
+      var count = 0;
+      do
+      {
+        value >>= 8;
+        count += 8;
+      } while (value > 0);
+
+      return count;
+    }
+
+    [MethodImpl(256)]
+    public static int FindBitPosition(byte data)
+    {
+      int shiftCount = 0;
+
+      while (data > 0)
+      {
+        data >>= 1;
+        shiftCount++;
+      }
+
+      return shiftCount;
+    }
+  }
+}

Ragon.Protocol/Sources/RagonVersion.cs

@@ -0,0 +1,45 @@
+/*
+ * 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.
+ * 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.Protocol
+{
+  public static class RagonVersion
+  {
+    public static uint Parse(string version)
+    {
+      var strings = version.Split('.');
+      if (strings.Length < 3)
+        return 0;
+      
+      var parts = new uint[] {0, 0, 0};
+      for (int i = 0; i < parts.Length; i++)
+      {
+        if (!uint.TryParse(strings[i], out var v))
+          return 0;
+
+        parts[i] = v;
+      }
+      
+      return (parts[0] << 16) | (parts[1] << 8) | parts[2];
+    }
+
+    public static string Parse(uint version)
+    {
+      return (version >> 16 & 0xFF) + "." + (version >> 8 & 0xFF) + "." + (version & 0xFF);
+    }
+  }
+}

Ragon.Relay/Dockerfile

@@ -0,0 +1,16 @@
+FROM mcr.microsoft.com/dotnet/sdk:7.0 AS build-env
+
+WORKDIR /App
+
+COPY . ./
+
+RUN dotnet restore
+RUN dotnet publish -c Release -o out
+
+FROM mcr.microsoft.com/dotnet/runtime:7.0
+
+WORKDIR /App
+
+COPY --from=build-env /App/out .
+
+ENTRYPOINT ["Ragon.Relay"]

Ragon.Relay/Program.cs

@@ -0,0 +1,27 @@
+/*
+ * 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.
+ * 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.Relay
+{
+  class Program
+  {
+    static void Main(string[] args)
+    {
+      var relay = new Relay();
+      relay.Start();
+    }
+  }
+}

Ragon.Relay/Ragon.Relay.csproj

@@ -0,0 +1,37 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <RootNamespace>Ragon.Relay</RootNamespace>
+        <TargetFramework>net8.0</TargetFramework>
+    </PropertyGroup>
+
+    <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
+      <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <None Update="NLog.config">
+        <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      </None>
+      <None Update="relay.config.json">
+        <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      </None>
+      <None Update="libenet.dylib">
+        <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      </None>
+    </ItemGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\Ragon.Server\Ragon.Server.csproj" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <PackageReference Include="ENet-CSharp" Version="2.4.8" />
+      <PackageReference Include="Google.Protobuf" Version="3.29.0" />
+      <PackageReference Include="MsgPack.Cli" Version="1.0.1" />
+      <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+      <PackageReference Include="NLog" Version="5.3.2" />
+    </ItemGroup>
+
+</Project>

Ragon.Relay/Sources/Logger/RelayLogger.cs

@@ -0,0 +1,40 @@
+using System;
+using NLog;
+using Ragon.Server.Logging;
+
+namespace Ragon.Relay;
+
+public class RelayLogger: IRagonLogger
+{
+  private Logger _nlogger;
+  
+  public RelayLogger(string tag)
+  {
+    _nlogger = LogManager.GetLogger(tag);
+  }
+  
+  public void Warning(string message)
+  {
+    _nlogger.Warn(message);
+  }
+
+  public void Info(string message)
+  {
+    _nlogger.Info(message);
+  }
+
+  public void Error(string message)
+  {
+    _nlogger.Error(message);
+  }
+
+  public void Error(Exception ex)
+  {
+    _nlogger.Error(ex);
+  }
+
+  public void Trace(string message)
+  {
+    _nlogger.Trace(message);
+  }
+}

Ragon.Relay/Sources/Logger/RelayLoggerFactory.cs

@@ -0,0 +1,11 @@
+using Ragon.Server.Logging;
+
+namespace Ragon.Relay;
+
+public class RelayLoggerFactory: IRagonLoggerFactory
+{
+  public IRagonLogger GetLogger(string tag)
+  {
+    return new RelayLogger(tag);
+  }
+}

Ragon.Relay/Sources/Plugin/RelayRoomPlugin.cs

@@ -0,0 +1,23 @@
+using System;
+using Ragon.Server.Plugin;
+
+namespace Ragon.Relay;
+
+public class RelayRoomPlugin: BaseRoomPlugin
+{
+  public void Tick(float dt)
+  {
+    
+  }
+  public void OnAttached()
+  {
+    Console.WriteLine("Room attached");
+    
+    
+  }
+
+  public void OnDetached()
+  {
+    Console.WriteLine("Room detached");
+  }
+}

Ragon.Relay/Sources/Plugin/RelayServerPlugin.cs

@@ -0,0 +1,43 @@
+using Ragon.Server;
+using Ragon.Server.Lobby;
+using Ragon.Server.Plugin;
+using Ragon.Server.Time;
+
+namespace Ragon.Relay
+{
+  public class RelayServerPlugin : BaseServerPlugin
+  {
+    private RelayConfiguration _relayConfiguration;
+    private RagonScheduler _scheduler;
+    private RagonConnectionRegistry _connectionRegistry;
+    private IRagonLobby _lobby;
+    private Reporter _reporter;
+
+    public RelayServerPlugin(RelayConfiguration config)
+    {
+      _relayConfiguration = config;
+    }
+
+    public override void OnAttached(IRagonServer server)
+    {
+      base.OnAttached(server);
+      
+      _lobby = server.Lobby;
+      _connectionRegistry = server.ConnectionRegistry;
+      _scheduler = server.Scheduler;
+      _reporter = new Reporter(_relayConfiguration, server, "127.0.0.1", 5000);
+
+      server.Scheduler.Run(new RagonActionTimer(() => _reporter.Done(), 1, -1));
+    }
+
+    public override bool OnCommand(string command, string payload)
+    {
+      return true;
+    }
+
+    public override IRoomPlugin CreateRoomPlugin(RoomInformation information)
+    {
+      return new RelayRoomPlugin();
+    }
+  }
+}

Ragon.Relay/Sources/Relay.cs

@@ -0,0 +1,81 @@
+/*
+ * 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.
+ * 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 System.IO;
+using System.Threading;
+using Newtonsoft.Json;
+using Ragon.Server;
+using Ragon.Server.IO;
+using Ragon.Server.Logging;
+using Ragon.Server.Plugin;
+using Ragon.Server.WebSocketServer;
+using Ragon.Transport;
+
+namespace Ragon.Relay
+{
+  public class Relay
+  {
+    public void Start()
+    {
+      LoggerManager.SetLoggerFactory(new RelayLoggerFactory());
+
+      var logger = LoggerManager.GetLogger("Relay");
+      logger.Info("Relay Application");
+
+      var data = File.ReadAllText("relay.config.json");
+      var configuration = JsonConvert.DeserializeObject<RelayConfiguration>(data);
+      var serverType = RagonServerConfiguration.GetServerType(configuration.ServerType);
+
+      INetworkServer networkServer = new ENetServer();
+      IServerPlugin plugin = new RelayServerPlugin();
+      
+      switch (serverType)
+      {
+        case ServerType.ENET:
+          networkServer = new ENetServer();
+          break;
+        case ServerType.WEBSOCKET:
+          networkServer = new WebSocketServer();
+          break;
+      }
+
+      var serverConfiguration = new RagonServerConfiguration()
+      {
+        LimitConnections = configuration.LimitConnections,
+        LimitRooms = configuration.LimitRooms,
+        LimitBufferedEvents = configuration.LimitBufferedEvents,
+        LimitPlayersPerRoom = configuration.LimitPlayersPerRoom,
+        LimitUserDataSize = configuration.LimitUserDataSize,
+        LimitPropertySize = configuration.LimitPropertySize,
+        Port = configuration.Port,
+        Protocol = configuration.Protocol,
+        ServerKey = configuration.ServerKey,
+        ServerTickRate = configuration.ServerTickRate,
+        ServerAddress = configuration.ServerAddress,
+      };
+      
+      var relay = new RagonServer(networkServer, plugin, serverConfiguration);
+      relay.Listen();
+      while (relay.IsRunning)
+      {
+        relay.Tick();
+        Thread.Sleep(1);
+      }
+
+      relay.Dispose();
+    }
+  }
+}

Ragon.Relay/Sources/RelayConfiguration.cs

@@ -0,0 +1,21 @@
+using System;
+
+namespace Ragon.Relay
+{
+  [Serializable]
+  public struct RelayConfiguration
+  {
+    public string ServerKey;
+    public string ServerType;
+    public string ServerAddress;
+    public ushort ServerTickRate;
+    public string Protocol;
+    public ushort Port;
+    public int LimitConnections;
+    public int LimitPlayersPerRoom;
+    public int LimitRooms;
+    public int LimitBufferedEvents;
+    public int LimitUserDataSize;
+    public int LimitPropertySize;
+  }
+}

Ragon.Relay/Sources/Reporter/Client.cs

@@ -0,0 +1,44 @@
+using System;
+using System.Net;
+using System.Net.Sockets;
+using Ragon.Server.Logging;
+
+namespace Ragon.Relay;
+
+public class Client
+{
+  private readonly UdpClient _udpClient;
+  private readonly IPEndPoint _endpoint;
+  private readonly IRagonLogger _logger;
+  
+  public Client(string host, int port)
+  {
+    _logger = LoggerManager.GetLogger("Client");
+    _udpClient = new UdpClient();
+    _endpoint = new IPEndPoint(IPAddress.Parse(host), port);
+  }
+  
+  public void Send(byte[] data)
+  {
+    try
+    {
+      _udpClient.BeginSend(data, data.Length, _endpoint, SendCallback, null);
+    }
+    catch (Exception ex)
+    {
+      _logger.Error(ex.Message);
+    }
+  }
+
+  private void SendCallback(IAsyncResult ar)
+  {
+    try
+    {
+      _udpClient.EndSend(ar);
+    }
+    catch (Exception ex)
+    {
+      _logger.Error(ex.Message);
+    }
+  }
+}

Ragon.Relay/Sources/Reporter/Reporter.cs

@@ -0,0 +1,56 @@
+using Google.Protobuf;
+using Google.Protobuf.Collections;
+using Ragon.Server;
+
+namespace Ragon.Relay;
+
+public class Reporter
+{
+  private readonly Client _client;
+  private readonly IRagonServer _server;
+  private readonly RelayConfiguration _configuration;
+
+  public Reporter(
+    RelayConfiguration relayConfiguration,
+    IRagonServer server,
+    string host,
+    int port
+  )
+  {
+    _client = new Client(host, port);
+    _server = server;
+    _configuration = relayConfiguration;
+  }
+
+  public void Done()
+  {
+    for (var i = 0; i < 10; i++)
+    {
+      var message = new Data();
+      message.Statistics = new Statistics()
+      {
+        Connections = _server.ConnectionRegistry.Contexts.Count,
+        ConnectionsLimit = _configuration.LimitConnections,
+        Rooms = _server.Lobby.Rooms.Count,
+        RoomsLimit = _configuration.LimitRooms,
+      };
+
+      var room = new Room()
+      {
+        Id = $"Room ID {i}",
+      };
+
+      for (var j = 0; j < 10; j++)
+      {
+        room.Players.Add(new Player()
+        {
+          Id = $"Player ID {i}",
+        });
+      }
+
+      message.Room = room;
+
+      _client.Send(message.ToByteArray());
+    }
+  }
+}

Ragon.Relay/Sources/Transport/ENet/ENetConnection.cs

@@ -0,0 +1,44 @@
+/*
+ * 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.
+ * 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 ENet;
+using Ragon.Server.IO;
+
+namespace Ragon.Transport;
+
+public sealed class ENetConnection: INetworkConnection
+{
+  private static ushort _iterator = 0;
+  public ushort Id { get; }
+  public INetworkChannel Reliable { get; private set; }
+  public INetworkChannel Unreliable { get; private set; }
+  private Peer _peer;
+  
+  public ENetConnection(Peer peer)
+  {
+    _peer = peer;
+    
+    // Id = (ushort) peer.ID;
+    Id = _iterator++;
+    Reliable = new ENetReliableChannel(peer, NetworkChannel.RELIABLE);
+    Unreliable = new ENetUnreliableChannel(peer, NetworkChannel.UNRELIABLE);
+  }
+  
+  public void Close()
+  {
+    _peer.Disconnect(0);
+  }
+}

Ragon.Relay/Sources/Transport/ENet/ENetReliableChannel.cs

@@ -0,0 +1,54 @@
+/*
+ * 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.
+ * 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 ENet;
+using Ragon.Protocol;
+using Ragon.Server.IO;
+
+namespace Ragon.Transport;
+
+public sealed class ENetReliableChannel: INetworkChannel
+{
+  private Peer _peer;
+  private byte _channelId;
+  private byte[] _data;
+  
+  public ENetReliableChannel(Peer peer, NetworkChannel channel)
+  {
+    _peer = peer;
+    _data = new byte[1500];
+    _channelId = (byte) channel;
+  }
+  
+  public void Send(byte[] data)
+  {
+    var newPacket = new Packet();
+    newPacket.Create(data, data.Length, PacketFlags.Reliable);
+    
+    _peer.Send(_channelId, ref newPacket);
+  }
+
+  public void Send(RagonStream buffer)
+  {
+    _data = buffer.ToArray();
+    
+    var newPacket = new Packet();
+    newPacket.Create(_data, _data.Length, PacketFlags.Reliable);
+    
+    _peer.Send(_channelId, ref newPacket);
+  }
+}

Ragon.Relay/Sources/Transport/ENet/ENetServer.cs

@@ -0,0 +1,141 @@
+/*
+ * 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.
+ * 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 System;
+using ENet;
+using Ragon.Protocol;
+using Ragon.Server.IO;
+using Ragon.Server.Logging;
+
+namespace Ragon.Transport;
+
+public sealed class ENetServer : INetworkServer
+{
+  private readonly Host _host = new();
+  private readonly IRagonLogger _logger = LoggerManager.GetLogger(nameof(ENetServer));
+
+  private ENetConnection[] _connections = Array.Empty<ENetConnection>();
+  private INetworkListener _listener;
+  private uint _protocol;
+  private Event _event;
+
+  public void Listen(INetworkListener listener, NetworkConfiguration configuration)
+  {
+    Library.Initialize();
+
+    _connections = new ENetConnection[configuration.LimitConnections];
+
+    _listener = listener;
+    _protocol = configuration.Protocol;
+
+    var address = new Address
+    {
+      Port = (ushort)configuration.Port,
+    };
+
+    _host.Create(address, _connections.Length, 2, 0, 0, 1024 * 1024);
+
+    var protocolDecoded = RagonVersion.Parse(_protocol);
+    _logger.Info($"Listen at {configuration.Address}:{configuration.Port}");
+    _logger.Info($"Protocol: {protocolDecoded}");
+  }
+
+  public void Update()
+  {
+    bool polled = false;
+    while (!polled)
+    {
+      if (_host.CheckEvents(out _event) <= 0)
+      {
+        if (_host.Service(0, out _event) <= 0)
+          break;
+
+        polled = true;
+      }
+
+      switch (_event.Type)
+      {
+        case EventType.None:
+        {
+          _logger.Trace("None event");
+          break;
+        }
+        case EventType.Connect:
+        {
+          if (!IsValidProtocol(_event.Data))
+          {
+            _logger.Warning(
+              $"Mismatched protocol Server: {RagonVersion.Parse(_protocol)} Client: {RagonVersion.Parse(_event.Data)}, close connection");
+            _event.Peer.DisconnectNow(0);
+            break;
+          }
+
+          var connection = new ENetConnection(_event.Peer);
+
+          _connections[_event.Peer.ID] = connection;
+          _listener.OnConnected(connection);
+          break;
+        }
+        case EventType.Disconnect:
+        {
+          var connection = _connections[_event.Peer.ID];
+          _listener.OnDisconnected(connection);
+          break;
+        }
+        case EventType.Timeout:
+        {
+          var connection = _connections[_event.Peer.ID];
+          _listener.OnTimeout(connection);
+          break;
+        }
+        case EventType.Receive:
+        {
+          var peerId = (ushort)_event.Peer.ID;
+          var connection = _connections[peerId];
+          var dataRaw = new byte[_event.Packet.Length];
+
+          _event.Packet.CopyTo(dataRaw);
+          _event.Packet.Dispose();
+
+          _listener.OnData(connection, (NetworkChannel)_event.ChannelID, dataRaw);
+          break;
+        }
+      }
+    }
+  }
+
+  public void Broadcast(byte[] data, NetworkChannel channel)
+  {
+    var packet = new Packet();
+    var flag = channel == NetworkChannel.RELIABLE ? PacketFlags.Reliable : PacketFlags.None;
+
+    packet.Create(data, flag);
+
+    _host.Broadcast((byte)channel, ref packet);
+  }
+
+  public void Stop()
+  {
+    _host?.Dispose();
+
+    Library.Deinitialize();
+  }
+
+  private bool IsValidProtocol(uint protocol)
+  {
+    return protocol == _protocol;
+  }
+}

Ragon.Relay/Sources/Transport/ENet/ENetUnreliableChannel.cs

@@ -0,0 +1,52 @@
+/*
+ * 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.
+ * 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 ENet;
+using Ragon.Protocol;
+using Ragon.Server.IO;
+
+namespace Ragon.Transport;
+
+public sealed class ENetUnreliableChannel: INetworkChannel
+{
+  private Peer _peer;
+  private byte _channelId;
+  private byte[] _data;
+  
+  public ENetUnreliableChannel(Peer peer, NetworkChannel channel)
+  {
+    _peer = peer;
+    _channelId = (byte) channel;
+  }
+  
+  public void Send(byte[] data)
+  {
+    var newPacket = new Packet();
+    newPacket.Create(data, data.Length, PacketFlags.None);
+
+    _peer.Send(_channelId, ref newPacket);
+  }
+  
+  public void Send(RagonStream buffer)
+  {
+    _data = buffer.ToArray();
+    
+    var newPacket = new Packet();
+    newPacket.Create(_data, _data.Length, PacketFlags.None);
+    
+    _peer.Send(_channelId, ref newPacket);
+  }
+}

Ragon.Relay/Sources/Transport/WebSocket/Executor/Executor.cs

@@ -0,0 +1,79 @@
+/*
+ * 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.
+ * 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 System;
+using System.Collections.Generic;
+using System.Threading.Channels;
+using System.Threading.Tasks;
+
+namespace Ragon.Server.IO;
+
+public class Executor : TaskScheduler
+{
+  private readonly ChannelReader<Task> _reader;
+  private readonly ChannelWriter<Task> _writer;
+  private readonly Queue<Task> _pendingTasks;
+  private readonly TaskFactory _taskFactory;
+
+  public Task Run(Action action, TaskCreationOptions task)
+  {
+    return _taskFactory.StartNew(action, task);
+  }
+
+  public Executor()
+  {
+    var channel = Channel.CreateUnbounded<Task>(new UnboundedChannelOptions()
+    {
+      SingleReader = true, 
+      SingleWriter = true,
+    });
+    
+    _reader = channel.Reader;
+    _writer = channel.Writer;
+
+    _taskFactory = new TaskFactory(this);
+    _pendingTasks = new Queue<Task>();
+  }
+
+  protected override IEnumerable<Task>? GetScheduledTasks()
+  {
+    throw new NotSupportedException();
+  }
+
+  protected override void QueueTask(Task task)
+  {
+    _writer.TryWrite(task);
+  }
+
+  protected override bool TryExecuteTaskInline(Task task, bool taskWasPreviouslyQueued)
+  {
+    return false;
+  }
+
+  public void Update()
+  {
+    while (_reader.TryRead(out var task))
+    {
+      TryExecuteTask(task);
+
+      if (task.Status == TaskStatus.Running)
+        _pendingTasks.Enqueue(task);
+    }
+
+    while (_pendingTasks.TryDequeue(out var task))
+      _writer.TryWrite(task);
+  }
+}

Ragon.Relay/Sources/Transport/WebSocket/WebSocketConnection.cs

@@ -0,0 +1,69 @@
+/*
+ * 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.
+ * 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 System;
+using System.Net.WebSockets;
+using System.Threading;
+using System.Threading.Tasks;
+using Ragon.Server.IO;
+using Ragon.Server.Logging;
+
+namespace Ragon.Server.WebSocketServer;
+
+public sealed class WebSocketConnection : INetworkConnection
+{
+    private readonly IRagonLogger _logger = LoggerManager.GetLogger(nameof(WebSocketConnection));
+    public ushort Id { get; }
+    public INetworkChannel Reliable { get; private set; }
+    public INetworkChannel Unreliable { get; private set; }
+
+    public WebSocket Socket { get; private set; }
+    private WebSocketReliableChannel[] _channels;
+
+    public WebSocketConnection(WebSocket webSocket, ushort peerId)
+    {
+        Id = peerId;
+        Socket = webSocket;
+
+        var reliableChannel = new WebSocketReliableChannel(webSocket);
+        var unreliableChannel = new WebSocketReliableChannel(webSocket);
+
+        _channels = new[] { reliableChannel, unreliableChannel };
+
+        Reliable = reliableChannel;
+        Unreliable = unreliableChannel;
+    }
+
+    public void Close()
+    {
+        Socket.CloseAsync(WebSocketCloseStatus.NormalClosure, null, CancellationToken.None);
+    }
+    
+    public async Task Flush()
+    {
+        foreach (var channel in _channels)
+        {
+            try
+            {
+                await channel.Flush();
+            }
+            catch (Exception ex)
+            {
+                _logger.Error(ex);
+            }
+        }
+    }
+}

Ragon.Relay/Sources/Transport/WebSocket/WebSocketReliableChannel.cs

@@ -0,0 +1,55 @@
+/*
+ * 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.
+ * 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 System.Collections.Generic;
+using System.Net.WebSockets;
+using System.Threading;
+using System.Threading.Tasks;
+using Ragon.Protocol;
+using Ragon.Server.IO;
+
+namespace Ragon.Server.WebSocketServer;
+
+public class WebSocketReliableChannel : INetworkChannel
+{
+    private Queue<byte[]> _queue;
+    private WebSocket _socket;
+
+    public WebSocketReliableChannel(WebSocket webSocket)
+    {
+        _socket = webSocket;
+        _queue = new Queue<byte[]>(512);
+    }
+
+    public void Send(byte[] data)
+    {
+        _queue.Enqueue(data);
+    }
+
+    public void Send(RagonStream buffer)
+    {
+        var sendData = buffer.ToArray();
+        _queue.Enqueue(sendData);
+    }
+
+    public async Task Flush()
+    {
+        while (_queue.TryDequeue(out var sendData) && _socket.State == WebSocketState.Open)
+        {
+            await _socket.SendAsync(sendData, WebSocketMessageType.Binary, WebSocketMessageFlags.EndOfMessage, CancellationToken.None);
+        }
+    }
+}

Ragon.Relay/Sources/Transport/WebSocket/WebSocketServer.cs

@@ -0,0 +1,176 @@
+/*
+ * 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.
+ * 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 System;
+using System.Buffers;
+using System.Collections.Generic;
+using System.Net;
+using System.Net.WebSockets;
+using System.Threading;
+using Ragon.Protocol;
+using Ragon.Server.IO;
+using Ragon.Server.Logging;
+
+namespace Ragon.Server.WebSocketServer;
+
+public class WebSocketServer : INetworkServer
+{
+  private readonly IRagonLogger _logger = LoggerManager.GetLogger(nameof(WebSocketServer));
+  
+  private INetworkListener _networkListener;
+  private Stack<ushort> _sequencer;
+  private Executor _executor;
+  private HttpListener _httpListener;
+  private WebSocketConnection[] _connections;
+  private List<WebSocketConnection> _activeConnections;
+  private CancellationTokenSource _cancellationTokenSource;
+
+  public WebSocketServer()
+  {
+    _sequencer = new Stack<ushort>();
+    _connections = Array.Empty<WebSocketConnection>();
+    _activeConnections = new List<WebSocketConnection>();
+    _executor = new Executor();
+  }
+  
+  public async void StartAccept(CancellationToken cancellationToken)
+  {
+    while (!cancellationToken.IsCancellationRequested)
+    {
+      WebSocketConnection connection = null!;
+      try
+      {
+        var context = await _httpListener.GetContextAsync();
+        if (!context.Request.IsWebSocketRequest)
+        {
+          context.Response.StatusCode = 200;
+          context.Response.ContentLength64 = 0;
+          context.Response.Close();
+          continue;
+        }
+        
+        var webSocketContext = await context.AcceptWebSocketAsync(null);
+        var webSocket = webSocketContext.WebSocket;
+        var peerId = _sequencer.Pop();
+        
+        connection = new WebSocketConnection(webSocket, peerId);  
+      }
+      catch (Exception ex)
+      {
+          _logger.Error(ex);
+          continue;
+      }
+      
+      _connections[connection.Id] = connection;
+      
+      StartListen(connection, cancellationToken);
+    }
+  }
+
+  async void StartListen(WebSocketConnection connection, CancellationToken cancellationToken)
+  {
+    _activeConnections.Add(connection);
+    _networkListener.OnConnected(connection);
+
+    var webSocket = connection.Socket;
+    var rawData = new byte[2048];
+    var rawDataBuffer = new Memory<byte>(rawData);
+    var data = new ArrayBufferWriter<byte>();
+    
+    while (webSocket.State == WebSocketState.Open || !cancellationToken.IsCancellationRequested)
+    {
+      try
+      {
+        while (true)
+        {
+          var result = await webSocket.ReceiveAsync(rawDataBuffer, cancellationToken);
+          var payload = rawDataBuffer.Slice(0, result.Count);
+          
+          data.Write(payload.Span);
+          
+          if (result.EndOfMessage)
+            break;
+        }
+        
+        if (data.WrittenCount > 0)
+        {
+          _networkListener.OnData(connection, NetworkChannel.RELIABLE, data.WrittenMemory.ToArray());
+          
+          data.Clear();
+        }
+      }
+      catch (Exception ex)
+      {
+        break;
+      }
+    }
+
+    _sequencer.Push(connection.Id);
+    _activeConnections.Remove(connection);
+    
+    _networkListener.OnDisconnected(connection);
+  }
+
+  public void Update()
+  {
+    _executor.Update();
+    
+    Flush();
+  }
+
+  public void Broadcast(byte[] data, NetworkChannel channel)
+  {
+    foreach (var activeConnection in _activeConnections)
+      activeConnection.Reliable.Send(data);    
+  }
+
+  public async void Flush()
+  {
+    foreach (var conn in _activeConnections)
+      await conn.Flush();
+  }
+
+  public void Listen(
+    INetworkListener listener,
+    NetworkConfiguration configuration
+  )
+  {
+    _networkListener = listener;
+    _cancellationTokenSource = new CancellationTokenSource();
+
+    var limit = (ushort)configuration.LimitConnections;
+    for (ushort i = limit; i != 0; i--)
+      _sequencer.Push(i);
+
+    _sequencer.Push(0);
+
+    _connections = new WebSocketConnection[configuration.LimitConnections];
+    
+    _httpListener = new HttpListener();
+    _httpListener.Prefixes.Add($"http://{configuration.Address}:{configuration.Port}/");
+    _httpListener.Start();
+
+    var protocolDecoded = RagonVersion.Parse(configuration.Protocol);
+    _logger.Info($"Listen at http://{configuration.Address}:{configuration.Port}/");
+    _logger.Info($"Protocol: {protocolDecoded}");
+  }
+
+  public void Stop()
+  {
+    _cancellationTokenSource.Cancel();
+    _httpListener.Stop();
+  }
+}

Ragon.Relay/relay.config.json

@@ -0,0 +1,14 @@
+{
+  "serverKey": "defaultkey",
+  "serverType": "enet",
+  "serverAddress": "*",
+  "serverTickRate": 30,
+  "protocol": "1.0.0",
+  "port": 8000,
+  "limitConnections": 4095,
+  "limitPlayersPerRoom": 20,
+  "limitRooms": 200,
+  "limitBufferedEvents": 50,
+  "limitUserDataSize": 1024,
+  "limitPropertySize": 512
+}

Ragon.Server.WebSocketServer/Ragon.Server.WebSocketServer.csproj

@@ -0,0 +1,28 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+        <RootNamespace>Ragon.WebSockets</RootNamespace>
+        <TargetFrameworks>net6.0;net7.0;net8.0</TargetFrameworks>
+        <Copyright>Eduard Kargin</Copyright>
+        <Authors>Eduard Kargin</Authors>
+        <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
+        <Version>1.4.0</Version>
+        <Title>Ragon Server WebSocket</Title>
+        <Description>Ragon Server WebSocket transport</Description>
+        <PackageProjectUrl>https://ragon.io</PackageProjectUrl>
+        <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>
+        <RepositoryUrl>https://github.com/edmand46/Ragon</RepositoryUrl>
+        <RepositoryType>Source</RepositoryType>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\Ragon.Server\Ragon.Server.csproj" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <Folder Include="Sources\" />
+    </ItemGroup>
+
+</Project>

Ragon.Server/Ragon.Server.csproj

@@ -0,0 +1,25 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+        <RootNamespace>Ragon.Core</RootNamespace>
+        <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
+        <Version>1.4.0</Version>
+        <Title>Ragon.Server</Title>
+        <Copyright>Eduard Kargin</Copyright>
+        <Authors>Eduard Kargin</Authors>
+        <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>
+        <PackageProjectUrl>https://ragon.io</PackageProjectUrl>
+        <RepositoryUrl>https://github.com/edmand46/Ragon</RepositoryUrl>
+        <RepositoryType>Source</RepositoryType>
+        <LangVersion>10</LangVersion>
+        <TargetFrameworks>net6.0;net7.0;net8.0</TargetFrameworks>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <ProjectReference Include="..\Ragon.Protocol\Ragon.Protocol.csproj" />
+    </ItemGroup>
+
+
+</Project>

Ragon.Server/Sources/Data/RagonData.cs

@@ -0,0 +1,66 @@
+using Ragon.Protocol;
+
+namespace Ragon.Server.Data;
+
+public class RagonData
+{
+  private readonly Dictionary<string, byte[]> _data = new Dictionary<string, byte[]>();
+
+  public bool IsDirty { get; private set; }
+
+  public RagonData()
+  {
+  }
+
+  public void Read(RagonStream buffer)
+  {
+    var len = buffer.ReadUShort();
+    for (int i = 0; i < len; i++)
+    {
+      var key = buffer.ReadString();
+      var valueSize = buffer.ReadUShort();
+      if (valueSize > 0)
+      {
+        var value = buffer.ReadBinary(valueSize);
+        _data[key] = value;
+      }
+      else
+      {
+        _data[key] = Array.Empty<byte>();
+      }
+    }
+  }
+
+  public void Write(RagonStream buffer)
+  {
+    buffer.WriteUShort((ushort)_data.Count);
+    foreach (var prop in _data)
+    {
+      buffer.WriteString(prop.Key);
+      buffer.WriteUShort((ushort)prop.Value.Length);
+      buffer.WriteBinary(prop.Value);
+    }
+
+    var toDelete = _data
+      .Where(p => p.Value.Length == 0)
+      .Select(p => p.Key);
+    
+    foreach (var prop in toDelete)
+      _data.Remove(prop);
+
+    IsDirty = false;
+  }
+
+  public void Snapshot(RagonStream buffer)
+  {
+    buffer.WriteUShort((ushort)_data.Count);
+    foreach (var prop in _data)
+    {
+      buffer.WriteString(prop.Key);
+      buffer.WriteUShort((ushort)prop.Value.Length);
+      buffer.WriteBinary(prop.Value);
+      
+      Console.WriteLine($"Key: {prop.Key} Value: {prop.Value.Length}");
+    }
+  }
+}

Ragon.Server/Sources/Event/RagonEvent.cs

@@ -0,0 +1,51 @@
+/*
+ * 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.
+ * 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;
+using Ragon.Server.Room;
+
+namespace Ragon.Server.Event;
+
+public class RagonEvent
+{
+  public RagonRoomPlayer Invoker { get; private set; }
+  public ushort EventCode { get; private set; }
+  public ushort Size => (ushort)_size;
+
+  private uint[] _data = new uint[128];
+  private int _size = 0;
+
+  public RagonEvent(
+    RagonRoomPlayer invoker,
+    ushort eventCode
+  )
+  {
+    Invoker = invoker;
+    EventCode = eventCode;
+  }
+
+  public void Read(RagonStream buffer)
+  {
+                // _size = buffer.Capacity;
+                // buffer.ReadArray(_data, _size);
+  }
+
+  public void Write(RagonStream buffer)
+  {
+    // if (_size <= 0) return;
+    // buffer.WriteArray(_data, _size);
+  }
+}