private static void DeserializeShotBroadcast(BitBuffer buffer, ShotBroadcast shotBroadcast)
{
shotBroadcast.ShotId = buffer.GetInt();
shotBroadcast.UserID = buffer.GetInt();
shotBroadcast.PlayerShotID = buffer.GetInt();
shotBroadcast.PlayerDied = buffer.GetInt() > 0;
}
public static PacketType ServerDeserializeInput(BitBuffer buffer, List <Commands> commandsList,
List <Shot> shotsList, ShotBroadcast shotBroadcast, PlayerJoined p, out int playerDisconnect)
{
var messageType = buffer.GetByte();
playerDisconnect = -1;
if (messageType == (byte)PacketType.PLAYER_JOINED_ACK)
{
DeserializePlayerJoinedAck(p, buffer);
return(PacketType.PLAYER_JOINED_ACK);
}
if (messageType == (byte)PacketType.COMMANDS)
{
DeserializeCommands(commandsList, buffer);
return(PacketType.COMMANDS);
}
if (messageType == (byte)PacketType.PLAYER_SHOT)
{
DeserializeShot(shotsList, buffer);
return(PacketType.PLAYER_SHOT);
}
if (messageType == (byte)PacketType.SHOT_BROADCAST_ACK)
{
DeserializeShotBroadcast(buffer, shotBroadcast); // SAME AS SHOTBROADCAST; BUT ITS AN ACK
return(PacketType.SHOT_BROADCAST_ACK);
}
if (messageType == (byte)PacketType.PLAYER_DISCONNECT)
{
playerDisconnect = PlayerDisconnectDeserialize(buffer);
}
return(PacketType.PLAYER_DISCONNECT);
}
public static void ClientSerializeShotBroadcastAck(ShotBroadcast shotBroadcast, BitBuffer buffer)
{
buffer.PutByte((byte)PacketType.SHOT_BROADCAST_ACK);
buffer.PutInt(shotBroadcast.ShotId);
buffer.PutInt(shotBroadcast.UserID);
buffer.PutInt(shotBroadcast.PlayerShotID);
buffer.PutInt(shotBroadcast.PlayerDied ? 1 : 0);
}
public static void ShotBroadcastMessage(BitBuffer buffer, ShotBroadcast shot)
{
buffer.PutByte((byte)PacketType.SHOT_BROADCAST);
buffer.PutInt(shot.ShotId);
buffer.PutInt(shot.UserID);
buffer.PutInt(shot.PlayerShotID);
buffer.PutInt(shot.PlayerDied ? 1 : 0);
}
public static PacketType ClientDeserialize(List <Snapshot> interpolationBuffer, PlayerJoined playerJoined, BitBuffer buffer,
int displaySeq, CommandsList clientCommands, int cmdSeq, List <Shot> shots, int shotSeq,
ShotBroadcast shotBroadcast, out int commandSnapshotAck, out int playerDisconnect)
{
commandSnapshotAck = -1;
var messageType = buffer.GetByte();
playerDisconnect = -1;
if (messageType == (byte)PacketType.UPDATE_MESSAGE)
{
ClientDeserializeUpdate(interpolationBuffer, buffer, displaySeq, clientCommands, out commandSnapshotAck);
return(PacketType.UPDATE_MESSAGE);
}
if (messageType == (byte)PacketType.PLAYER_JOINED)
{
PlayerJoinedDeserialize(playerJoined, buffer);
return(PacketType.PLAYER_JOINED);
}
if (messageType == (byte)PacketType.COMMANDS_ACK_MESSAGE)
{
int receivedAckSequence = ClientDeserializeAck(buffer);
clientCommands.Ack(receivedAckSequence);
return(PacketType.COMMANDS_ACK_MESSAGE);
}
if (messageType == (byte)PacketType.SHOT_ACK)
{
int receivedShotAckSeq = ClientDeserializeShotAck(buffer);
int count = 0;
foreach (var shot in shots)
{
if (shot.Seq <= receivedShotAckSeq)
{
count++;
}
}
shots.RemoveRange(0, count);
return(PacketType.SHOT_ACK);
}
if (messageType == (byte)PacketType.SHOT_BROADCAST)
{
DeserializeShotBroadcast(buffer, shotBroadcast);
return(PacketType.SHOT_BROADCAST);
}
if (messageType == (byte)PacketType.PLAYER_DISCONNECT)
{
playerDisconnect = PlayerDisconnectDeserialize(buffer);
}
return(PacketType.PLAYER_DISCONNECT);
}
private void AckBroadcastShot(int userID, ShotBroadcast shotBroadcast)
{
var pendingAcks = clients[shotBroadcast.UserID].unackedShotBroadcasts;
if (pendingAcks.ContainsKey(shotBroadcast))
{
pendingAcks[shotBroadcast].RemoveAll(
x => x == userID);
if (pendingAcks.Count == 0)
{
clients[shotBroadcast.UserID].unackedShotBroadcasts.Remove(shotBroadcast);
}
}
}
private void BroadcastShot(Shot shot, bool playerDied)
{
ShotBroadcast s = new ShotBroadcast
{
ShotId = shotCount, UserID = shot.UserID, PlayerShotID = shot.PlayerShotID, PlayerDied = playerDied
};
clients[shot.UserID].unackedShotBroadcasts[s] = new List <int>();
foreach (var client in clients)
{
Channel channel = client.Value.channel;
var packet = Packet.Obtain();
Serializer.ShotBroadcastMessage(packet.buffer, shot, playerDied);
packet.buffer.Flush();
var remoteEp = client.Value.dest;
channel.Send(packet, remoteEp);
packet.Free();
clients[shot.UserID].unackedShotBroadcasts[s].Add(client.Key);
}
}
private void UpdateServer()
{
serverTime += Time.deltaTime;
foreach (var cubeClientPair in clients)
{
int userID = cubeClientPair.Key;
var cubeClient = cubeClientPair.Value;
var packet = cubeClient.channel.GetPacket();
while (packet != null)
{
var buffer = packet.buffer;
List <Commands> commandsList = new List <Commands>();
List <Shot> shotsList = new List <Shot>();
ShotBroadcast s = new ShotBroadcast();
PlayerJoined p = new PlayerJoined();
int playerDisconnect;
var packetType = Serializer.ServerDeserializeInput(buffer, commandsList, shotsList, s, p, out playerDisconnect);
// TODO: use generics to avoid code repetition,
// as shots and commands are handled the same way
switch (packetType)
{
case PacketType.PLAYER_JOINED_ACK:
AckPlayerJoinedBroadcast(userID, p);
break;
case PacketType.COMMANDS:
StoreCommands(userID, cubeClient, commandsList);
break;
case PacketType.PLAYER_SHOT:
StoreShots(userID, cubeClient, shotsList);
break;
case PacketType.SHOT_BROADCAST_ACK:
AckBroadcastShot(userID, s);
break;
case PacketType.PLAYER_DISCONNECT:
playersToDisconnect.Add(playerDisconnect);
break;
default:
throw new ArgumentOutOfRangeException();
}
packet = cubeClient.channel.GetPacket();
}
}
foreach (var userID in playersToDisconnect)
{
DisconnectPlayer(userID);
}
playersToDisconnect.Clear();
if (accum >= sendRate)
{
foreach (var cubeClientPair in clients)
{
if (!cubeClientPair.Value.Confirmed) // PlayerJoined not acked yet
{
continue;
}
int userID = cubeClientPair.Key;
var cubeClient = cubeClientPair.Value;
var pendingCommands = cubeClientPair.Value.pendingCommands;
int lastCommandsReceived = clients[userID].cmdSeqReceived;
Dictionary <int, ServerClientInfo> confirmedClients = clients.Where(
x => x.Value.Confirmed).ToDictionary(
x => x.Key,
x => x.Value);
// Serialize snapshot
var packet = Packet.Obtain();
var cmdSeq = (pendingCommands.Count > 0)
? pendingCommands[0].Seq - 1 // only send command Seq that has been applied to snapshot
: lastCommandsReceived;
Serializer.ServerWorldSerialize(confirmedClients, packet.buffer, seq,
serverTime, cmdSeq);
packet.buffer.Flush();
var remoteEp = cubeClientPair.Value.dest;
cubeClient.channel.Send(packet, remoteEp);
packet.Free();
}
accum -= sendRate;
seq++;
}
}