/// <summary>
/// Groups packets together into box packets as necessary
/// </summary>
public ICollection <ReliableInfo> boxReliablePackets(Queue <ReliableInfo> packetQueue, StreamState stream, int streamID)
{ //Empty?
if (packetQueue.Count == 0)
{
return(null);
}
//If it's just one packet, there's no need
else if (packetQueue.Count == 1)
{ //We need to put it in a reliable case
Reliable reli = new Reliable();
ReliableInfo rinfo = packetQueue.Dequeue();
reli.streamID = streamID;
reli.packet = rinfo.packet;
rinfo.rid = reli.rNumber = stream.S2C_Reliable++;
rinfo.packet = reli;
List <ReliableInfo> list = new List <ReliableInfo>();
list.Add(rinfo);
return(list);
}
//Go through the list, creating boxed packets as we go
List <ReliableInfo> reliables = new List <ReliableInfo>();
ReliableInfo info;
ReliableBox box = new ReliableBox(streamID);
int packetStartSize = 4 /*reliable*/ + 2 /*reliable box*/ + _CRCLength;
int currentSize = packetStartSize; //Header+footer size of a boxed reliable packet
//Group our normal packets
while (packetQueue.Count > 0 && packetQueue.Peek().dataStream == null)
{
ReliableInfo pInfo = packetQueue.Dequeue();
//If the packet exceeds the max limit, send it on it's own
if (2 + 1 + pInfo.packet.Length > byte.MaxValue)
{ //We need to send the previous boxing packets first, as they
//should be in order of reliable id
if (box.reliables.Count > 0)
{
info = new ReliableInfo();
info.rid = stream.S2C_Reliable++;
//Don't add a lonely box
if (box.reliables.Count == 1)
{
info.packet = new Reliable(box.reliables[0].packet, info.rid, streamID);
}
else
{ //Make sure the box is serialized
box.MakeSerialized(this, _handler);
info.packet = new Reliable(box, info.rid, streamID);
}
info.consolidateEvents(box.reliables);
reliables.Add(info);
}
box = new ReliableBox(streamID);
currentSize = packetStartSize;
//Add the packet on it's own
Reliable reli = new Reliable();
reli.streamID = streamID;
reli.packet = pInfo.packet;
pInfo.rid = reli.rNumber = stream.S2C_Reliable++;
pInfo.packet = reli;
reliables.Add(pInfo);
continue;
}
//Do we have space to add this packet?
if (currentSize + pInfo.packet.Length + 1 > udpMaxSize)
{ //There's not enough room, box up our current packet
info = new ReliableInfo();
info.rid = stream.S2C_Reliable++;
//Don't add a lonely box
if (box.reliables.Count == 1)
{
info.packet = new Reliable(box.reliables[0].packet, info.rid, streamID);
}
else
{ //Make sure the box is serialized
box.MakeSerialized(this, _handler);
info.packet = new Reliable(box, info.rid, streamID);
}
info.consolidateEvents(box.reliables);
reliables.Add(info);
box = new ReliableBox(streamID);
currentSize = packetStartSize;
}
//Add the packet to the box list
box.reliables.Add(pInfo);
currentSize += pInfo.packet.Length + 1;
}
//If the last box has more than one packet, keep it
if (box.reliables.Count > 1)
{
info = new ReliableInfo();
info.rid = stream.S2C_Reliable++;
//Make sure the box is serialized
box.MakeSerialized(this, _handler);
info.packet = new Reliable(box, info.rid, streamID);
info.consolidateEvents(box.reliables);
reliables.Add(info);
}
else if (box.reliables.Count == 1)
{ //If it's only one packet, we don't need the box
info = new ReliableInfo();
info.rid = stream.S2C_Reliable++;
info.packet = new Reliable(box.reliables[0].packet, info.rid, streamID);
info.consolidateEvents(box.reliables[0]);
reliables.Add(info);
}
//Boxed them all
return(reliables);
}
{ /// <summary>
/// Creates a new system protocol packet.
/// </summary>
public PacketBase createSystemPacket(ushort typeID, byte[] buffer, int offset, int size)
{ //Ready our packet base
PacketBase packet = null;
offset++;
size--;
//What are we dealing with?
switch (typeID)
{
case CS_Initial.TypeID:
packet = new CS_Initial(typeID, buffer, offset, size);
break;
case BoxPacket.TypeID:
packet = new BoxPacket(typeID, buffer, offset, size);
break;
case Disconnect.TypeID:
packet = new Disconnect(typeID, buffer, offset, size);
break;
case PingPacket.TypeID:
packet = new PingPacket(typeID, buffer, offset, size);
break;
case CS_State.TypeID:
packet = new CS_State(typeID, buffer, offset, size);
break;
case Reliable.TypeID:
packet = new Reliable(typeID, buffer, offset, size, 0);
break;
case Reliable.TypeID + 1:
packet = new Reliable(typeID, buffer, offset, size, 1);
break;
case Reliable.TypeID + 2:
packet = new Reliable(typeID, buffer, offset, size, 2);
break;
case Reliable.TypeID + 3:
packet = new Reliable(typeID, buffer, offset, size, 3);
break;
case OutOfSync.TypeID:
packet = new OutOfSync(typeID, buffer, offset, size, 0);
break;
case OutOfSync.TypeID + 1:
packet = new OutOfSync(typeID, buffer, offset, size, 1);
break;
case OutOfSync.TypeID + 2:
packet = new OutOfSync(typeID, buffer, offset, size, 2);
break;
case OutOfSync.TypeID + 3:
packet = new OutOfSync(typeID, buffer, offset, size, 3);
break;
case ReliableEcho.TypeID:
packet = new ReliableEcho(typeID, buffer, offset, size, 0);
break;
case ReliableEcho.TypeID + 1:
packet = new ReliableEcho(typeID, buffer, offset, size, 1);
break;
case ReliableEcho.TypeID + 2:
packet = new ReliableEcho(typeID, buffer, offset, size, 2);
break;
case ReliableEcho.TypeID + 3:
packet = new ReliableEcho(typeID, buffer, offset, size, 3);
break;
case ReliableBox.TypeID:
packet = new ReliableBox(typeID, buffer, offset, size, 0);
break;
case ReliableBox.TypeID + 1:
packet = new ReliableBox(typeID, buffer, offset, size, 1);
break;
case ReliableBox.TypeID + 2:
packet = new ReliableBox(typeID, buffer, offset, size, 2);
break;
case ReliableBox.TypeID + 3:
packet = new ReliableBox(typeID, buffer, offset, size, 3);
break;
case DataPacketRcv.TypeID:
packet = new DataPacketRcv(typeID, buffer, offset, size, 0);
break;
case DataPacketRcv.TypeID + 1:
packet = new DataPacketRcv(typeID, buffer, offset, size, 1);
break;
case DataPacketRcv.TypeID + 2:
packet = new DataPacketRcv(typeID, buffer, offset, size, 2);
break;
case DataPacketRcv.TypeID + 3:
packet = new DataPacketRcv(typeID, buffer, offset, size, 3);
break;
default:
//An undefined packet.
packet = new PacketDummy(typeID, buffer, offset, size);
break;
}
return(packet);
}
