public override async ValueTask HandleMessageAsync(IMessageReader reader, MessageType messageType)
{
using var messageCopy = reader.Copy();
// Trigger connect event.
if (_isFirst)
{
_isFirst = false;
await _recorder.WriteConnectAsync(this);
}
// Check if we were in-game before handling the message.
var inGame = Player?.Game != null;
if (!_recordAfter)
{
// Trigger message event.
await _recorder.WriteMessageAsync(this, messageCopy, messageType);
}
// Handle the message.
await base.HandleMessageAsync(reader, messageType);
// Player created a game.
if (reader.Tag == MessageFlags.HostGame)
{
_createdGame = true;
}
else if (reader.Tag == MessageFlags.JoinGame && _createdGame)
{
_createdGame = false;
// We created a game and are now in-game, store that event.
if (!inGame && Player?.Game != null)
{
await _recorder.WriteGameCreatedAsync(this, Player.Game.Code);
}
_recordAfter = false;
// Trigger message event.
await _recorder.WriteMessageAsync(this, messageCopy, messageType);
}
if (_recordAfter)
{
// Trigger message event.
await _recorder.WriteMessageAsync(this, messageCopy, messageType);
}
}
public override async ValueTask HandleMessageAsync(IMessageReader reader, MessageType messageType)
{
var flag = reader.Tag;
_logger.LogTrace("[{0}] Server got {1}.", Id, flag);
switch (flag)
{
case MessageFlags.HostGame:
{
// Read game settings.
var gameInfo = Message00HostGameC2S.Deserialize(reader, out _);
// Create game.
var game = await _gameManager.CreateAsync(this, gameInfo);
if (game == null)
{
await DisconnectAsync(DisconnectReason.GameMissing);
return;
}
// Code in the packet below will be used in JoinGame.
using (var writer = MessageWriter.Get(MessageType.Reliable))
{
Message00HostGameS2C.Serialize(writer, game.Code);
await Connection.SendAsync(writer);
}
break;
}
case MessageFlags.JoinGame:
{
Message01JoinGameC2S.Deserialize(reader, out var gameCode);
var game = _gameManager.Find(gameCode);
if (game == null)
{
await DisconnectAsync(DisconnectReason.GameMissing);
return;
}
var result = await game.AddClientAsync(this);
switch (result.Error)
{
case GameJoinError.None:
break;
case GameJoinError.InvalidClient:
await DisconnectAsync(DisconnectReason.Custom, "Client is in an invalid state.");
break;
case GameJoinError.Banned:
await DisconnectAsync(DisconnectReason.Banned);
break;
case GameJoinError.GameFull:
await DisconnectAsync(DisconnectReason.GameFull);
break;
case GameJoinError.InvalidLimbo:
await DisconnectAsync(DisconnectReason.Custom, "Invalid limbo state while joining.");
break;
case GameJoinError.GameStarted:
await DisconnectAsync(DisconnectReason.GameStarted);
break;
case GameJoinError.GameDestroyed:
await DisconnectAsync(DisconnectReason.Custom, DisconnectMessages.Destroyed);
break;
case GameJoinError.Custom:
await DisconnectAsync(DisconnectReason.Custom, result.Message);
break;
default:
await DisconnectAsync(DisconnectReason.Custom, "Unknown error.");
break;
}
break;
}
case MessageFlags.StartGame:
{
if (!IsPacketAllowed(reader, true))
{
return;
}
await Player!.Game.HandleStartGame(reader);
break;
}
// No idea how this flag is triggered.
case MessageFlags.RemoveGame:
break;
case MessageFlags.RemovePlayer:
{
if (!IsPacketAllowed(reader, true))
{
return;
}
Message04RemovePlayerC2S.Deserialize(
reader,
out var playerId,
out var reason);
await Player!.Game.HandleRemovePlayer(playerId, (DisconnectReason)reason);
break;
}
case MessageFlags.GameData:
case MessageFlags.GameDataTo:
{
if (!IsPacketAllowed(reader, false))
{
return;
}
var toPlayer = flag == MessageFlags.GameDataTo;
// Handle packet.
using var readerCopy = reader.Copy();
var verified = await Player!.Game.HandleGameDataAsync(readerCopy, Player, toPlayer);
if (verified)
{
// Broadcast packet to all other players.
using (var writer = MessageWriter.Get(messageType))
{
if (toPlayer)
{
var target = reader.ReadPackedInt32();
reader.CopyTo(writer);
await Player.Game.SendToAsync(writer, target);
}
else
{
reader.CopyTo(writer);
await Player.Game.SendToAllExceptAsync(writer, Id);
}
}
}
break;
}
case MessageFlags.EndGame:
{
if (!IsPacketAllowed(reader, true))
{
return;
}
Message08EndGameC2S.Deserialize(
reader,
out var gameOverReason);
await Player!.Game.HandleEndGame(reader, gameOverReason);
break;
}
case MessageFlags.AlterGame:
{
if (!IsPacketAllowed(reader, true))
{
return;
}
Message10AlterGameC2S.Deserialize(
reader,
out var gameTag,
out var value);
if (gameTag != AlterGameTags.ChangePrivacy)
{
return;
}
await Player!.Game.HandleAlterGame(reader, Player, value);
break;
}
case MessageFlags.KickPlayer:
{
if (!IsPacketAllowed(reader, true))
{
return;
}
Message11KickPlayerC2S.Deserialize(
reader,
out var playerId,
out var isBan);
await Player!.Game.HandleKickPlayer(playerId, isBan);
break;
}
case MessageFlags.GetGameListV2:
{
Message16GetGameListC2S.Deserialize(reader, out var options, out _);
await OnRequestGameListAsync(options);
break;
}
default:
_logger.LogWarning("Server received unknown flag {0}.", flag);
break;
}
#if DEBUG
if (flag != MessageFlags.GameData &&
flag != MessageFlags.GameDataTo &&
flag != MessageFlags.EndGame &&
reader.Position < reader.Length)
{
_logger.LogWarning(
"Server did not consume all bytes from {0} ({1} < {2}).",
flag,
reader.Position,
reader.Length);
}
#endif
}
