/// <summary>
/// Note that the packetTick may not be the tick this event was created on
/// if we're re-trying to send this event in subsequent packets. This tick
/// is intended for use in tick diffs for compression.
/// </summary>
internal static RailEvent Decode(
RailBitBuffer buffer,
Tick packetTick)
{
// Read: [EventType]
int factoryType = buffer.ReadInt(RailEvent.FactoryTypeCompressor);
RailEvent evnt = RailEvent.Create(factoryType);
// Read: [EventId]
evnt.EventId = buffer.ReadSequenceId();
// Read: [HasEntityId]
bool hasEntityId = buffer.ReadBool();
if (hasEntityId)
{
// Read: [EntityId]
evnt.EntityId = buffer.ReadEntityId();
}
// Read: [EventData]
evnt.DecodeData(buffer, packetTick);
return(evnt);
}
/// <summary>
/// Overwrites this buffer with an array of byte data.
/// </summary>
public void Load(byte[] data, int length)
{
int numChunks = (length / 4) + 1;
if (this.chunks.Length < numChunks)
{
this.chunks = new uint[numChunks];
}
for (int i = 0; i < numChunks; i++)
{
int dataIdx = i * 4;
uint chunk =
(uint)data[dataIdx] |
(uint)data[dataIdx + 1] << 8 |
(uint)data[dataIdx + 2] << 16 |
(uint)data[dataIdx + 3] << 24;
this.chunks[i] = chunk;
}
int positionInByte = RailBitBuffer.FindHighestBitPosition(data[length - 1]);
// Take one off the position to backtrack from the sentinel bit
this.writePos = ((length - 1) * 8) + (positionInByte - 1);
this.readPos = 0;
}
private void DecodeDeltas(RailBitBuffer buffer)
{
this.deltas.Decode(
buffer,
() => RailState.DecodeDelta(buffer, this.SenderTick));
#endif
}
protected void EncodeCommands(RailBitBuffer buffer)
{
this.commandUpdates.Encode(
buffer,
RailConfig.PACKCAP_COMMANDS,
RailConfig.MAXSIZE_COMMANDUPDATE,
(commandUpdate) => commandUpdate.Encode(buffer));
}
protected override void EncodePayload(
RailBitBuffer buffer,
int reservedBytes)
{
#if SERVER
// Write: [Deltas]
this.EncodeDeltas(buffer, reservedBytes);
}
protected override void DecodePayload(RailBitBuffer buffer)
{
#if SERVER
// Read: [Commands]
this.DecodeCommands(buffer);
// Read: [View]
this.DecodeView(buffer);
}
private void DecodeHeader(RailBitBuffer buffer)
{
// Read: [LocalTick]
this.senderTick = buffer.ReadTick();
// Read: [AckTick]
this.ackTick = buffer.ReadTick();
// Read: [AckReliableEventId]
this.ackEventId = buffer.ReadSequenceId();
}
private void EncodeHeader(RailBitBuffer buffer)
{
// Write: [LocalTick]
buffer.WriteTick(this.senderTick);
// Write: [AckTick]
buffer.WriteTick(this.ackTick);
// Write: [AckReliableEventId]
buffer.WriteSequenceId(this.ackEventId);
}
protected override void EncodePayload(
RailBitBuffer buffer,
int reservedBytes)
{
#if CLIENT
// Write: [Commands]
this.EncodeCommands(buffer);
// Write: [View]
this.EncodeView(buffer, reservedBytes);
}
public void Decode(
RailBitBuffer buffer,
Func <T> decode)
{
IEnumerable <T> decoded = buffer.UnpackAll(decode);
foreach (T delta in decoded)
{
this.received.Add(delta);
}
}
private void EncodeDeltas(
RailBitBuffer buffer,
int reservedBytes)
{
this.deltas.Encode(
buffer,
RailConfig.PACKCAP_MESSAGE_TOTAL - reservedBytes,
RailConfig.MAXSIZE_ENTITY,
(delta) => RailState.EncodeDelta(buffer, delta));
#endif
}
internal static FixedByteBuffer8 Read(RailBitBuffer buffer)
{
uint first = 0;
uint second = 0;
first = buffer.ReadUInt();
if (buffer.ReadBool())
{
second = buffer.ReadUInt();
}
return(new FixedByteBuffer8(first, second));
}
private void DecodeEvents(
RailBitBuffer buffer)
{
IEnumerable <RailEvent> decoded =
buffer.UnpackAll(
() => RailEvent.Decode(buffer, this.SenderTick));
foreach (RailEvent evnt in decoded)
{
this.events.Add(evnt);
}
}
/// <summary>
/// Writes as many events as possible up to maxSize and returns the number
/// of events written in the batch. Also increments the total counter.
/// </summary>
private void EncodeEvents(
RailBitBuffer buffer,
int maxSize)
{
this.eventsWritten +=
buffer.PackToSize(
maxSize,
RailConfig.MAXSIZE_EVENT,
this.GetNextEvents(),
(evnt) => evnt.Encode(buffer, this.senderTick),
(evnt) => evnt.RegisterSent());
}
public void Encode(
RailBitBuffer buffer,
int maxTotalSize,
int maxIndividualSize,
Action <T> encode)
{
buffer.PackToSize(
maxTotalSize,
maxIndividualSize,
this.pending,
encode,
(val) => this.sent.Add(val));
}
internal void Decode(RailBitBuffer buffer)
{
// Read: [Header]
this.DecodeHeader(buffer);
// Read: [Events] (Early Pack)
this.DecodeEvents(buffer);
// Read: [Payload]
this.DecodePayload(buffer);
// Read: [Events] (Fill Pack)
this.DecodeEvents(buffer);
}
/// <summary>
/// After writing the header we write the packet data in three passes.
/// The first pass is a fill of events up to a percentage of the packet.
/// The second pass is the payload value, which will try to fill the
/// remaining packet space. If more space is available, we will try
/// to fill it with any remaining events, up to the maximum packet size.
/// </summary>
public void Encode(RailBitBuffer buffer)
{
// Write: [Header]
this.EncodeHeader(buffer);
// Write: [Events] (Early Pack)
this.EncodeEvents(buffer, RailConfig.PACKCAP_EARLY_EVENTS);
// Write: [Payload]
this.EncodePayload(buffer, 1); // Leave one byte for the event count
// Write: [Events] (Fill Pack)
this.EncodeEvents(buffer, RailConfig.PACKCAP_MESSAGE_TOTAL);
}
internal void Encode(RailBitBuffer buffer)
{
// Write: [EntityId]
buffer.WriteEntityId(this.entityId);
// Write: [Count]
buffer.Write(BUFFER_COUNT_BITS, (uint)this.commands.Count);
// Write: [Commands]
foreach (RailCommand command in this.commands.GetValues())
{
command.Encode(buffer);
}
}
protected void EncodeView(RailBitBuffer buffer, int reservedBytes)
{
buffer.PackToSize(
RailConfig.PACKCAP_MESSAGE_TOTAL - reservedBytes,
int.MaxValue,
this.view.GetOrdered(),
(pair) =>
{
buffer.WriteEntityId(pair.Key); // Write: [EntityId]
buffer.WriteTick(pair.Value.Tick); // Write: [Tick]
buffer.WriteBool(pair.Value.IsFrozen); // Write: [IsFrozen]
});
#endif
}
internal void Write(RailBitBuffer buffer)
{
uint first =
FixedByteBuffer8.Pack(this.val0, this.val1, this.val2, this.val3);
uint second =
FixedByteBuffer8.Pack(this.val4, this.val5, this.val6, this.val7);
bool writeSecond = (second > 0);
buffer.WriteUInt(first);
buffer.WriteBool(writeSecond);
if (writeSecond)
{
buffer.WriteUInt(second);
}
}
protected void OnPayloadReceived(IRailNetPeer peer, byte[] buffer, int length)
{
RailBitBuffer bitBuffer = this.interpreter.LoadData(buffer, length);
this.reusableIncoming.Decode(bitBuffer);
if (bitBuffer.IsFinished)
{
this.ProcessPacket(this.reusableIncoming);
}
else
{
RailDebug.LogError("Bad packet read, discarding...");
}
this.reusableIncoming.Reset();
}
internal static RailCommandUpdate Decode(RailBitBuffer buffer)
{
RailCommandUpdate update = RailResource.Instance.CreateCommandUpdate();
// Read: [EntityId]
update.entityId = buffer.ReadEntityId();
// Read: [Count]
int count = (int)buffer.Read(BUFFER_COUNT_BITS);
// Read: [Commands]
for (int i = 0; i < count; i++)
{
update.commands.Store(RailCommand.Decode(buffer));
}
return(update);
}
public void DecodeView(RailBitBuffer buffer)
{
IEnumerable <KeyValuePair <EntityId, RailViewEntry> > decoded =
buffer.UnpackAll(
() =>
{
return(new KeyValuePair <EntityId, RailViewEntry>(
buffer.ReadEntityId(), // Read: [EntityId]
new RailViewEntry(
buffer.ReadTick(), // Read: [Tick]
buffer.ReadBool()))); // Read: [IsFrozen]
});
foreach (var pair in decoded)
{
this.view.RecordUpdate(pair.Key, pair.Value);
}
#endif
}
public void WriteString(string value)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
uint length = (uint)value.Length;
RailDebug.Assert(length <= RailConfig.STRING_LENGTH_MAX, value);
if (value.Length > RailConfig.STRING_LENGTH_MAX)
{
length = RailConfig.STRING_LENGTH_MAX;
}
this.Write(RailBitBuffer.STRING_LENGTH_BITS, length);
for (int i = 0; i < length; i++)
{
this.Write(RailBitBuffer.ASCII_BITS, RailBitBuffer.ToASCII(value[i]));
}
}
/// <summary>
/// Note that the packetTick may not be the tick this event was created on
/// if we're re-trying to send this event in subsequent packets. This tick
/// is intended for use in tick diffs for compression.
/// </summary>
internal void Encode(
RailBitBuffer buffer,
Tick packetTick)
{
// Write: [EventType]
buffer.WriteInt(RailEvent.FactoryTypeCompressor, this.factoryType);
// Write: [EventId]
buffer.WriteSequenceId(this.EventId);
// Write: [HasEntityId]
buffer.WriteBool(this.EntityId.IsValid);
if (this.EntityId.IsValid)
{
// Write: [EntityId]
buffer.WriteEntityId(this.EntityId);
}
// Write: [EventData]
this.EncodeData(buffer, packetTick);
}
protected void DecodeCommands(RailBitBuffer buffer)
{
this.commandUpdates.Decode(
buffer,
() => RailCommandUpdate.Decode(buffer));
}
public static EntityId PeekEntityId(this RailBitBuffer buffer)
{
return(EntityId.Peek(buffer));
}
internal static EntityId Peek(RailBitBuffer buffer)
{
return(new EntityId(buffer.PeekUInt()));
}
internal static EntityId Read(RailBitBuffer buffer)
{
return(new EntityId(buffer.ReadUInt()));
}
internal void Write(RailBitBuffer buffer)
{
buffer.WriteUInt(this.idValue);
}
