void CheckSendRate()
{
if (SendMessagesAllowed && syncInterval > 0 && sendTimer < Time.time)
{
sendTimer = Time.time + syncInterval;
using (PooledNetworkWriter writer = NetworkWriterPool.GetWriter())
{
if (WriteParameters(writer))
{
SendAnimationParametersMessage(writer.ToArray());
}
}
}
}
/// <summary>
/// This function invokes the registered handler function for a message.
/// <para>Network connections used by the NetworkClient and NetworkServer use this function for handling network messages.</para>
/// </summary>
/// <typeparam name="T">The message type to unregister.</typeparam>
/// <param name="msg">The message object to process.</param>
/// <returns>Returns true if the handler was successfully invoked</returns>
public bool InvokeHandler <T>(T msg, int channelId) where T : NetworkMessage
{
using (PooledNetworkWriter writer = NetworkWriterPool.GetWriter())
{
// if it is a value type, just use typeof(T) to avoid boxing
// this works because value types cannot be derived
// if it is a reference type (for example NetworkMessage),
// ask the message for the real type
int msgType = MessagePacker.GetId(default(T) != null ? typeof(T) : msg.GetType());
MessagePacker.Pack(msg, writer);
ArraySegment <byte> segment = writer.ToArraySegment();
using (PooledNetworkReader networkReader = NetworkReaderPool.GetReader(segment))
return(InvokeHandler(msgType, networkReader, channelId));
}
}
void CheckSendRate()
{
float now = Time.time;
if (SendMessagesAllowed && syncInterval >= 0 && now > nextSendTime)
{
nextSendTime = now + syncInterval;
using (PooledNetworkWriter writer = NetworkWriterPool.GetWriter()) {
if (WriteParameters(writer))
{
SendAnimationParametersMessage(writer.ToArray());
}
}
}
}
void UpdateClient()
{
// send to server if we have local authority (and aren't the server)
// -> only if connectionToServer has been initialized yet too
// check only each 'syncInterval'
if (!IsServer && IsClientWithAuthority && Time.time - lastClientSendTime >= syncInterval)
{
if (HasEitherMovedRotatedScaled())
{
// serialize
// local position/rotation for VR support
using (PooledNetworkWriter writer = NetworkWriterPool.GetWriter())
{
SerializeIntoWriter(writer, TargetComponent.transform.localPosition, TargetComponent.transform.localRotation, TargetComponent.transform.localScale);
// send to server
CmdClientToServerSync(writer.ToArray());
}
}
lastClientSendTime = Time.time;
}
// apply interpolation on client for all players
// unless this client has authority over the object. could be
// himself or another object that he was assigned authority over
if (!IsClientWithAuthority && goal != null)
{
// teleport or interpolate
if (NeedsTeleport())
{
// local position/rotation for VR support
ApplyPositionRotationScale(goal.LocalPosition, goal.LocalRotation, goal.LocalScale);
// reset data points so we don't keep interpolating
start = null;
goal = null;
}
else
{
// local position/rotation for VR support
ApplyPositionRotationScale(InterpolatePosition(start, goal, TargetComponent.transform.localPosition),
InterpolateRotation(start, goal, TargetComponent.transform.localRotation),
InterpolateScale(start, goal, TargetComponent.transform.localScale));
}
}
}
internal void SendSpawnMessage(NetworkIdentity identity, NetworkConnection conn)
{
if (identity.serverOnly)
{
return;
}
// for easier debugging
if (LogFilter.Debug)
{
Debug.Log("Server SendSpawnMessage: name=" + identity.name + " sceneId=" + identity.sceneId.ToString("X") + " netid=" + identity.NetId);
}
// one writer for owner, one for observers
using (PooledNetworkWriter ownerWriter = NetworkWriterPool.GetWriter(), observersWriter = NetworkWriterPool.GetWriter())
{
// serialize all components with initialState = true
// (can be null if has none)
(int ownerWritten, int observersWritten) = identity.OnSerializeAllSafely(true, ownerWriter, observersWriter);
// convert to ArraySegment to avoid reader allocations
// (need to handle null case too)
ArraySegment <byte> ownerSegment = ownerWritten > 0 ? ownerWriter.ToArraySegment() : default;
ArraySegment <byte> observersSegment = observersWritten > 0 ? observersWriter.ToArraySegment() : default;
var msg = new SpawnMessage
{
netId = identity.NetId,
isLocalPlayer = conn.Identity == identity,
isOwner = identity.ConnectionToClient == conn,
sceneId = identity.sceneId,
assetId = identity.AssetId,
// use local values for VR support
position = identity.transform.localPosition,
rotation = identity.transform.localRotation,
scale = identity.transform.localScale
};
// use owner segment if 'conn' owns this identity, otherwise
// use observers segment
msg.payload = msg.isOwner ? ownerSegment : observersSegment;
conn.Send(msg);
}
}
public static byte[] PackMessage(int msgType, MessageBase msg)
{
using (PooledNetworkWriter writer = NetworkWriterPool.GetWriter())
{
try
{
// write message type
writer.WriteInt16((short)msgType);
// serialize message into writer
msg.Serialize(writer);
// return byte[]
return(writer.ToArray());
}
finally { }
}
}
public static void Send <T>(IEnumerable <NetworkConnection> connections, T msg, int channelId = Channels.DefaultReliable) where T : IMessageBase
{
using (PooledNetworkWriter writer = NetworkWriterPool.GetWriter())
{
// pack message into byte[] once
MessagePacker.Pack(msg, writer);
var segment = writer.ToArraySegment();
int count = 0;
foreach (NetworkConnection conn in connections)
{
// send to all connections, but don't wait for them
_ = conn.SendAsync(segment);
count++;
}
NetworkDiagnostics.OnSend(msg, channelId, segment.Count, count);
}
}
void FixedUpdate()
{
if (!SendMessagesAllowed)
{
return;
}
CheckSendRate();
if (m_MotionStateUpdate)
{
//Update the motionHash
using (PooledNetworkWriter writer = NetworkWriterPool.GetWriter())
{
WriteParameters(writer);
SendMotionMessage(m_Motion.currentState.serializationKey, writer.ToArray());
}
}
}
/// <summary>
/// This function invokes the registered handler function for a message.
/// <para>Network connections used by the NetworkClient and NetworkServer use this function for handling network messages.</para>
/// </summary>
/// <typeparam name="T">The message type to unregister.</typeparam>
/// <param name="msg">The message object to process.</param>
/// <returns></returns>
public bool InvokeHandler <T>(T msg, int channelId) where T : IMessageBase
{
// get writer from pool
using (PooledNetworkWriter writer = NetworkWriterPool.GetWriter())
{
// if it is a value type, just use typeof(T) to avoid boxing
// this works because value types cannot be derived
// if it is a reference type (for example IMessageBase),
// ask the message for the real type
int msgType = MessagePacker.GetId(typeof(T).IsValueType ? typeof(T) : msg.GetType());
Debug.Log("[NetworkConnection].InvokeHandler -- msg: " + msg.ToString());
MessagePacker.Pack(msg, writer);
ArraySegment <byte> segment = writer.ToArraySegment();
using (PooledNetworkReader networkReader = NetworkReaderPool.GetReader(segment))
return(InvokeHandler(msgType, networkReader, channelId));
}
}
internal override void Update()
{
base.Update();
// should we still process a connected event?
if (connectedEventPending)
{
connectedEventPending = false;
NetworkClient.OnConnectedEvent?.Invoke();
}
// process internal messages so they are applied at the correct time
while (queue.Count > 0)
{
// call receive on queued writer's content, return to pool
PooledNetworkWriter writer = queue.Dequeue();
ArraySegment <byte> message = writer.ToArraySegment();
// OnTransportData assumes a proper batch with timestamp etc.
// let's make a proper batch and pass it to OnTransportData.
Batcher batcher = GetBatchForChannelId(Channels.Reliable);
batcher.AddMessage(message);
using (PooledNetworkWriter batchWriter = NetworkWriterPool.GetWriter())
{
// make a batch with our local time (double precision)
if (batcher.MakeNextBatch(batchWriter, NetworkTime.localTime))
{
NetworkClient.OnTransportData(batchWriter.ToArraySegment(), Channels.Reliable);
}
}
NetworkWriterPool.Recycle(writer);
}
// should we still process a disconnected event?
if (disconnectedEventPending)
{
disconnectedEventPending = false;
NetworkClient.OnDisconnectedEvent?.Invoke();
}
}
internal void SendSpawnMessage(NetworkIdentity identity, INetworkConnection conn)
{
if (identity.serverOnly)
{
return;
}
// for easier debugging
if (logger.LogEnabled())
{
logger.Log("Server SendSpawnMessage: name=" + identity.name + " sceneId=" + identity.sceneId.ToString("X") + " netid=" + identity.NetId);
}
// one writer for owner, one for observers
using (PooledNetworkWriter ownerWriter = NetworkWriterPool.GetWriter(), observersWriter = NetworkWriterPool.GetWriter())
{
bool isOwner = identity.ConnectionToClient == conn;
ArraySegment <byte> payload = CreateSpawnMessagePayload(isOwner, identity, ownerWriter, observersWriter);
var msg = new SpawnMessage
{
netId = identity.NetId,
isLocalPlayer = conn.Identity == identity,
isOwner = isOwner,
sceneId = identity.sceneId,
assetId = identity.AssetId,
// use local values for VR support
position = identity.transform.localPosition,
rotation = identity.transform.localRotation,
scale = identity.transform.localScale,
payload = payload,
};
conn.Send(msg);
}
}
// batch as many messages as possible into writer
// returns true if any batch was made.
public bool MakeNextBatch(NetworkWriter writer, double timeStamp)
{
// if we have no messages then there's nothing to do
if (messages.Count == 0)
{
return(false);
}
// make sure the writer is fresh to avoid uncertain situations
if (writer.Position != 0)
{
throw new ArgumentException($"MakeNextBatch needs a fresh writer!");
}
// write timestamp first
// -> double precision for accuracy over long periods of time
writer.WriteDouble(timeStamp);
// do start no matter what
do
{
// add next message no matter what. even if > threshold.
// (we do allow > threshold sized messages as single batch)
PooledNetworkWriter message = messages.Dequeue();
ArraySegment <byte> segment = message.ToArraySegment();
writer.WriteBytes(segment.Array, segment.Offset, segment.Count);
// return the writer to pool
NetworkWriterPool.Recycle(message);
}
// keep going as long as we have more messages,
// AND the next one would fit into threshold.
while (messages.Count > 0 &&
writer.Position + messages.Peek().Position <= threshold);
// we had messages, so a batch was made
return(true);
}
void FixedUpdate()
{
if (!SendMessagesAllowed)
{
return;
}
CheckSendRate();
for (int i = 0; i < Animator.layerCount; i++)
{
if (!CheckAnimStateChanged(out int stateHash, out float normalizedTime, i))
{
continue;
}
using (PooledNetworkWriter writer = NetworkWriterPool.GetWriter())
{
WriteParameters(writer);
SendAnimationMessage(stateHash, normalizedTime, i, writer.ToArray());
}
}
}
// helper function to start reading a batch.
void StartReadingBatch(PooledNetworkWriter batch)
{
// point reader to it
reader.SetBuffer(batch.ToArraySegment());
}
// get next message, unpacked from batch (if any)
// timestamp is the REMOTE time when the batch was created remotely.
public bool GetNextMessage(out NetworkReader message, out double remoteTimeStamp)
{
// getting messages would be easy via
// <<size, message, size, message, ...>>
// but to save A LOT of bandwidth, we use
// <<message, message, ...>
// in other words, we don't know where the current message ends
//
// BUT: it doesn't matter!
// -> we simply return the reader
// * if we have one yet
// * and if there's more to read
// -> the caller can then read one message from it
// -> when the end is reached, we retire the batch!
//
// for example:
// while (GetNextMessage(out message))
// ProcessMessage(message);
//
message = null;
// do nothing if we don't have any batches.
// otherwise the below queue.Dequeue() would throw an
// InvalidOperationException if operating on empty queue.
if (batches.Count == 0)
{
remoteTimeStamp = 0;
return(false);
}
// was our reader pointed to anything yet?
if (reader.Length == 0)
{
remoteTimeStamp = 0;
return(false);
}
// no more data to read?
if (reader.Remaining == 0)
{
// retire the batch
PooledNetworkWriter writer = batches.Dequeue();
NetworkWriterPool.Recycle(writer);
// do we have another batch?
if (batches.Count > 0)
{
// point reader to the next batch.
// we'll return the reader below.
PooledNetworkWriter next = batches.Peek();
StartReadingBatch(next);
}
// otherwise there's nothing more to read
else
{
remoteTimeStamp = 0;
return(false);
}
}
// use the current batch's remote timestamp
// AFTER potentially moving to the next batch ABOVE!
remoteTimeStamp = readerRemoteTimeStamp;
// if we got here, then we have more data to read.
message = reader;
return(true);
}
public static void Recycle(PooledNetworkWriter writer)
{
pool.Push(writer);
}
void Update()
{
// if server then always sync to others.
if (isServer)
{
// just use OnSerialize via SetDirtyBit only sync when position
// changed. set dirty bits 0 or 1
SetDirtyBit(HasEitherMovedRotatedScaled() ? 1UL : 0UL);
}
// no 'else if' since host mode would be both
if (isClient)
{
// send to server if we have local authority (and aren't the server)
// -> only if connectionToServer has been initialized yet too
if (!isServer && IsClientWithAuthority)
{
// check only each 'syncInterval'
if (Time.time - lastClientSendTime >= syncInterval)
{
if (HasEitherMovedRotatedScaled())
{
// serialize
// local position/rotation for VR support
using (PooledNetworkWriter writer = NetworkWriterPool.GetWriter())
{
if (useGlobalPosition)
{
SerializeIntoWriter(writer, targetComponent.transform.position, targetComponent.transform.rotation, targetComponent.transform.localScale);
}
else
{
SerializeIntoWriter(writer, targetComponent.transform.localPosition, targetComponent.transform.localRotation, targetComponent.transform.localScale);
}
// send to server
CmdClientToServerSync(writer.ToArray());
}
}
lastClientSendTime = Time.time;
}
}
// apply interpolation on client for all players
// unless this client has authority over the object. could be
// himself or another object that he was assigned authority over
if (!IsClientWithAuthority)
{
// received one yet? (initialized?)
if (goal != null)
{
// teleport or interpolate
if (NeedsTeleport())
{
// local position/rotation for VR support
ApplyPositionRotationScale(goal.thePosition, goal.theRotation, goal.theScale);
// reset data points so we don't keep interpolating
start = null;
goal = null;
}
else
{
// local position/rotation for VR support
if (useGlobalPosition)
{
ApplyPositionRotationScale(InterpolatePosition(start, goal, targetComponent.transform.position),
InterpolateRotation(start, goal, targetComponent.transform.rotation),
InterpolateScale(start, goal, targetComponent.transform.localScale));
}
else
{
ApplyPositionRotationScale(InterpolatePosition(start, goal, targetComponent.transform.localPosition),
InterpolateRotation(start, goal, targetComponent.transform.localRotation),
InterpolateScale(start, goal, targetComponent.transform.localScale));
}
}
}
}
}
}
/// <summary>Return a writer to the pool.</summary>
public static void Recycle(PooledNetworkWriter writer)
{
Pool.Return(writer);
}
static ArraySegment <byte> CreateSpawnMessagePayload(bool isOwner, NetworkIdentity identity, PooledNetworkWriter ownerWriter, PooledNetworkWriter observersWriter)
{
// Only call OnSerializeAllSafely if there are NetworkBehaviours
if (identity.NetworkBehaviours.Length == 0)
{
return(default);