//Uncompress and process update
private static void ProcessUnreliableClientUpdate(Session MySession, List <byte> MyPacket)
{
//Get Unreliable length
UnreliableLength = MyPacket[0];
//Get Message # we are acknowledging
XorMessage = (ushort)(MyPacket[2] << 8 | MyPacket[1]);
//Get xor byte /Technically not needed...? Tells us what message to xor with but that should be the last message we xor'd... right?
XorByte = MyPacket[3];
//Remove read bytes
MyPacket.RemoveRange(0, 4);
//This means that this is a deprecated packet that may of got lost on the way, base xor is behind current basexor
//Let's not bother to even process it
if (MySession.Channel40Base.ThisMessagenumber > (XorMessage - XorByte))
{
//clear packet
MyPacket.Clear();
return;
}
//Uncompress the packet
Compression.UncompressUnreliable(MyPacket, UnreliableLength);
//First 0x4029 from client
if (XorByte == 0)
{
MySession.MyCharacter.World = MyPacket[0];
//This should match what we have stored for the character? Let's verify this?
MySession.MyCharacter.XCoord = ConvertXZ(Get3ByteInt(MyPacket.GetRange(1, 3)));
MySession.MyCharacter.YCoord = ConvertY(Get3ByteInt(MyPacket.GetRange(4, 3)));
MySession.MyCharacter.ZCoord = ConvertXZ(Get3ByteInt(MyPacket.GetRange(7, 3)));
//Skip 12 bytes...
MySession.MyCharacter.Facing = ConvertFacing(MyPacket[22]);
//Skip 12 bytes...
MySession.MyCharacter.Animation = (short)(GetShort(MyPacket.GetRange(35, 2)));
MySession.MyCharacter.Target = Get4ByteInt(MyPacket.GetRange(37, 4));
//Indicates character is appearing on screen/in world
MySession.InGame = true;
//Add xor base message to our list to track
MySession.Channel40Base = new Message(XorMessage, MyPacket);
//Should we generate a C9 here?
List <byte> MyObject = Compression.CompressUnreliable(new List <byte>(ObjectUpdate.GatherObjectUpdate(MySession.MyCharacter, MySession.sessionIDUp)));
MyObject.Insert(0, 0);
MyObject.InsertRange(0, BitConverter.GetBytes(MySession.Channel0Message));
MyObject.Insert(0, 0xC9);
MyObject.Insert(0, 0);
//Add 0 on to end to denote end of this channel
MyObject.Add(0);
lock (MySession.SessionMessages)
{
MySession.SessionMessages.AddRange(MyObject);
}
MyObject.Clear();
}
//Following client updates MySession.Channel40Base.ThisMessage
//Lots of xor'ing...
else
{
MySession.MyCharacter.World = (byte)(MySession.Channel40Base.ThisMessage[0] ^ MyPacket[0]);
//This should match what we have stored for the character? Let's verify this?
MySession.MyCharacter.XCoord = ConvertXZ(Get3ByteIntXOR((byte)(MySession.Channel40Base.ThisMessage[1] ^ MyPacket[1]), (byte)(MySession.Channel40Base.ThisMessage[2] ^ MyPacket[2]), (byte)(MySession.Channel40Base.ThisMessage[3] ^ MyPacket[3])));
MySession.MyCharacter.YCoord = ConvertY(Get3ByteIntXOR((byte)(MySession.Channel40Base.ThisMessage[4] ^ MyPacket[4]), (byte)(MySession.Channel40Base.ThisMessage[5] ^ MyPacket[5]), (byte)(MySession.Channel40Base.ThisMessage[6] ^ MyPacket[6])));
MySession.MyCharacter.ZCoord = ConvertXZ(Get3ByteIntXOR((byte)(MySession.Channel40Base.ThisMessage[7] ^ MyPacket[7]), (byte)(MySession.Channel40Base.ThisMessage[8] ^ MyPacket[8]), (byte)(MySession.Channel40Base.ThisMessage[9] ^ MyPacket[9])));
//Skip 12 bytes...
MySession.MyCharacter.Facing = ConvertFacing((byte)(MySession.Channel40Base.ThisMessage[22] ^ MyPacket[22]));
//Skip 12 bytes...
MySession.MyCharacter.Animation = (short)(GetShortXOR((byte)(MySession.Channel40Base.ThisMessage[35] ^ MyPacket[35]), (byte)(MySession.Channel40Base.ThisMessage[36] ^ MyPacket[36])));
MySession.MyCharacter.Target = Get4ByteIntXOR((byte)(MySession.Channel40Base.ThisMessage[37] ^ MyPacket[37]), (byte)(MySession.Channel40Base.ThisMessage[38] ^ MyPacket[38]), (byte)(MySession.Channel40Base.ThisMessage[39] ^ MyPacket[39]), (byte)(MySession.Channel40Base.ThisMessage[40] ^ MyPacket[40]));
//Means client has started a new basemessage, follow suit
if (MySession.Channel40Base.ThisMessagenumber < (XorMessage - XorByte))
{
//Grab new base message to xor against
Message NewBaseMessage = MySession.Channel40BaseList.Find(i => i.ThisMessagenumber == (XorMessage - XorByte));
//Add our new xor'd base message and start over
MySession.Channel40Base = new Message(XorMessage, GetArrayXOR(NewBaseMessage.ThisMessage, MyPacket));
//Remove all other possible base messages
MySession.Channel40BaseList.Clear();
}
//Means update is based off same xor base
else if (MySession.Channel40Base.ThisMessagenumber == (XorMessage - XorByte))
{
MySession.Channel40BaseList.Add(new Message(XorMessage, GetArrayXOR(MySession.Channel40Base.ThisMessage, MyPacket)));
}
}
//Let outbound rdpreport know to include this to outbound ack's
//This is purely as inbetween for message ack's
MySession.Channel40Message = XorMessage;
MySession.Channel40Ack = true;
MyPacket.Clear();
}