private static byte[] UDPtoBytes(UDPFrame frame)
{
using (MemoryStream ms = new MemoryStream()) {
Serializer.Serialize(ms, frame);
return(ms.ToArray());
}
}
/// <summary>
/// Sends a UDPFrame packet to the connected partner
/// </summary>
/// <param name="frame"></param>
/// <returns></returns>
public static int SendFrame(UDPFrame frame)
{
if (SaveData.GameSettings.coOp && partner != null)
{
System.Diagnostics.Debug.WriteLine("Sending frame: " + frame.subject.ToString());
frame.packetID = Guid.NewGuid();
UDPMessager.SendFrame(frame, partner);
if (frame.subject != UDPFrame.FrameType.Confirmation)
{
lock (confirmationQueue)
confirmationQueue.Add(frame);
}
return(1);
}
return(0);
}
public static void RetreivalLoop()
{
IPEndPoint EP = new IPEndPoint(IPAddress.Any, port);
while (SaveData.GameSettings.coOp)
{
byte[] data = server.Receive(ref EP);
UDPFrame frame = BytestoUDP(data);
if (receieved.Contains(frame.packetID))
{
continue;
}
else
{
receieved.Add(frame.packetID);
SessionManager.CommandSwitching(frame, EP);
}
if (receieved.Count > 200) //Keep track of the last 200 packets to allow rejection of duplicates
{
receieved.Clear();
}
}
}
public static void CommandSwitching(UDPFrame frame, IPEndPoint ep)
{
switch (frame.subject)
{
case UDPFrame.FrameType.Confirmation:
int index = -1;
lock (confirmationQueue) {
for (int i = 0; i < confirmationQueue.Count; i++)
{
if (confirmationQueue[i].packetID.Equals(frame.uid))
{
index = i;
}
}
if (index >= 0)
{
confirmationQueue.RemoveAt(index);
}
}
return;
case UDPFrame.FrameType.Heartbeat:
System.Diagnostics.Debug.WriteLine("Heartbeat");
break;
case UDPFrame.FrameType.Movement: //Packet received by guest to update position of an object that moved on the host's end
System.Diagnostics.Debug.WriteLine("Movement");
/* Movement currently broken
* if (frame.floatData.Length > 1 && frame.stringData.Length > 0 && WorldData.currentRegions.ContainsKey(frame.stringData[0])) {
* lock(WorldData.currentRegions)
* foreach (World.Objects.WorldObjectBase b in WorldData.currentRegions[frame.stringData[0]].GetWorldObjects()) {
* if (b.uid.Equals(frame.uid)) {
* b.SetWorldPosition(frame.floatData[0], frame.floatData[1]);
* break;
* }
* }
* }
*/
break;
case UDPFrame.FrameType.Quest:
System.Diagnostics.Debug.WriteLine("Quest");
break;
case UDPFrame.FrameType.Player:
switch (frame.intData[0])
{
case 0:
System.Diagnostics.Debug.WriteLine("Loaded new guest player");
WorldData.AddPlayer(frame.uid);
if (isHost) //If host received guest, return the host character to the guest
{
SendFrame(new UDPFrame()
{
subject = UDPFrame.FrameType.Player,
intData = new int[] { 0 },
uid = WorldData.player.uid
});
SendFrame(new UDPFrame()
{
subject = UDPFrame.FrameType.Player,
intData = new int[] { 1 },
floatData = new float[] { WorldData.player.worldX, WorldData.player.worldY }
});
}
break;
case 1:
if (WorldData.partner != null)
{
WorldData.partner.SetWorldPosition(frame.floatData[0], frame.floatData[1]);
}
break;
}
break;
case UDPFrame.FrameType.Connection:
System.Diagnostics.Debug.WriteLine("Connection");
if (frame.intData.Length == 0)
{
break;
}
switch (frame.intData[0])
{
case 0: //Sever connection
EndPartner();
break;
case 1: //New Partner is Guest
NewPartner(ep);
break;
case 2: //Text message
GUI.Windows.NotificationWindow.NewNotification(frame.stringData[0], 120);
System.Diagnostics.Debug.WriteLine("message: " + frame.stringData[0]);
break;
case 3: //Confirmation from host
SendFrame(new UDPFrame()
{
subject = UDPFrame.FrameType.Player, uid = SaveData.GameSettings.coOpUID, intData = new int[] { 0 }
});
break;
default:
System.Diagnostics.Debug.WriteLine("Connection Value: " + frame.intData[0]);
break;
}
break;
case UDPFrame.FrameType.WorldObject:
//World Objects not supported by packets currently
//WorldData.PacketToWorldObject(frame);
break;
}
SendFrame(new UDPFrame()
{
subject = UDPFrame.FrameType.Confirmation, uid = frame.packetID
});
}
public static void SendFrame(UDPFrame frame, IPEndPoint p)
{
byte[] buff = UDPtoBytes(frame);
server.Send(buff, buff.Length, p);
}
