Gianmaria I. said:Hi,
having a BitArray, how can i extract bits to create a System.byte
as in the example...
With
BitArray bits
and
Byte myNewByte
bits[0] to bits[7] => myNewByte
Nathan Kovac said:It has been since beta since I did any of this, but here is some old
source code that might help you out. Someone on this same forum had
helped me about 4 years ago with a similar problem when I was working out
a protocal for an online game. If you look at what I am doing there are a
couple choices that might help you accomplish what you need. Pay special
attention to how I calculate the data length from the first 4 bytes of my
packet, this will probably be your most efficient method of doing what you
want. Here is my code.
using System;
using System.Runtime.Serialization.Formatters.Binary;
using System.IO;
using System.Diagnostics;
namespace MudClient
{
/// <summary>
/// Summary description for Packet.
/// </summary>
///
public enum PacketType:byte
{
IgnoreThisPacket,
BroadcastToServer,
LoginToServer,
LoginAccepted,
LoginDenied,
LoginReqestfromServer,
QuitToServer,
QuitToClient,
ServerShuttingDown,
SetCommandLineToClient,
CommandToServer,
CommandToClient,
TextToClient,
PingClient,
PongServer,
AbbrTextToClient,
RequestAbbrTextValue,
SendAbbrTextValue,
ClearAbbrTextOnClient
}
public class Packet
{
private byte command;
private int dataLength=0;
private byte[] Data;
public byte[] PacketData
{
get
{
return Data;
}
set
{
Data=value;
dataLength=Data.Length;
}
}
public int Length
{
get
{
if (Data==null)
return 5;
else
return dataLength+5;
}
}
public PacketType Command
{
get
{
return (PacketType)command;
}
set
{
command=(byte)value;
}
}
public string StrPacketData
{
get {return System.Text.Encoding.ASCII.GetString(Data);}
set
{
Data=System.Text.Encoding.ASCII.GetBytes(value.ToCharArray());
dataLength=Data.Length;
}
}
public Packet()
{
Command=PacketType.IgnoreThisPacket;
}
public Packet(PacketType cmd)
{
Command=cmd;
}
public Packet(byte[] thisdata)
{
if (thisdata.Length>0)
command=thisdata[0];
if (thisdata.Length>5)
{
dataLength =
(((int)thisdata[4]) << 24) +
(((int)thisdata[3]) << 16) +
(((int)thisdata[2]) << 8) +
((int)thisdata[1]);
if (dataLength>0)
{
Data=new Byte[dataLength];
Array.Copy(thisdata,5,Data,0,dataLength);
}
}
}
public Packet(PacketType cmd, byte[] thisdata)
{
Command=cmd;
Data=thisdata;
dataLength=Data.Length;
}
public Packet(PacketType cmd, string thisdata)
{
Command=cmd;
Data=System.Text.Encoding.ASCII.GetBytes(thisdata.ToCharArray());
dataLength=Data.Length;
Debug.WriteLine("setting dataLength to "+dataLength);
}
public byte[] Serialize()
{
int len=this.Length;
byte[] tempcmd=new byte[len];
tempcmd[0] = command;
tempcmd[1] = (byte)(dataLength & 0xff);
tempcmd[2] = (byte)((dataLength >> 8) & 0xff);
tempcmd[3] = (byte)((dataLength >>16) & 0xff);
tempcmd[4] = (byte)((dataLength >>24) & 0xff);
if (len>5)
{
Array.Copy(Data,0,tempcmd,5,dataLength);
}
return tempcmd;
}
}
}
Gianmaria I. said:Hi,
having a BitArray, how can i extract bits to create a System.byte
as in the example...
With
BitArray bits
and
Byte myNewByte
bits[0] to bits[7] => myNewByte
Nicholas Paldino said:Or, you could use the CopyTo method on the BitArray class. =)
--
- Nicholas Paldino [.NET/C# MVP]
- (e-mail address removed)
Nathan Kovac said:It has been since beta since I did any of this, but here is some old
source code that might help you out. Someone on this same forum had
helped me about 4 years ago with a similar problem when I was working out
a protocal for an online game. If you look at what I am doing there are
a couple choices that might help you accomplish what you need. Pay
special attention to how I calculate the data length from the first 4
bytes of my packet, this will probably be your most efficient method of
doing what you want. Here is my code.
using System;
using System.Runtime.Serialization.Formatters.Binary;
using System.IO;
using System.Diagnostics;
namespace MudClient
{
/// <summary>
/// Summary description for Packet.
/// </summary>
///
public enum PacketType:byte
{
IgnoreThisPacket,
BroadcastToServer,
LoginToServer,
LoginAccepted,
LoginDenied,
LoginReqestfromServer,
QuitToServer,
QuitToClient,
ServerShuttingDown,
SetCommandLineToClient,
CommandToServer,
CommandToClient,
TextToClient,
PingClient,
PongServer,
AbbrTextToClient,
RequestAbbrTextValue,
SendAbbrTextValue,
ClearAbbrTextOnClient
}
public class Packet
{
private byte command;
private int dataLength=0;
private byte[] Data;
public byte[] PacketData
{
get
{
return Data;
}
set
{
Data=value;
dataLength=Data.Length;
}
}
public int Length
{
get
{
if (Data==null)
return 5;
else
return dataLength+5;
}
}
public PacketType Command
{
get
{
return (PacketType)command;
}
set
{
command=(byte)value;
}
}
public string StrPacketData
{
get {return System.Text.Encoding.ASCII.GetString(Data);}
set
{
Data=System.Text.Encoding.ASCII.GetBytes(value.ToCharArray());
dataLength=Data.Length;
}
}
public Packet()
{
Command=PacketType.IgnoreThisPacket;
}
public Packet(PacketType cmd)
{
Command=cmd;
}
public Packet(byte[] thisdata)
{
if (thisdata.Length>0)
command=thisdata[0];
if (thisdata.Length>5)
{
dataLength =
(((int)thisdata[4]) << 24) +
(((int)thisdata[3]) << 16) +
(((int)thisdata[2]) << 8) +
((int)thisdata[1]);
if (dataLength>0)
{
Data=new Byte[dataLength];
Array.Copy(thisdata,5,Data,0,dataLength);
}
}
}
public Packet(PacketType cmd, byte[] thisdata)
{
Command=cmd;
Data=thisdata;
dataLength=Data.Length;
}
public Packet(PacketType cmd, string thisdata)
{
Command=cmd;
Data=System.Text.Encoding.ASCII.GetBytes(thisdata.ToCharArray());
dataLength=Data.Length;
Debug.WriteLine("setting dataLength to "+dataLength);
}
public byte[] Serialize()
{
int len=this.Length;
byte[] tempcmd=new byte[len];
tempcmd[0] = command;
tempcmd[1] = (byte)(dataLength & 0xff);
tempcmd[2] = (byte)((dataLength >> 8) & 0xff);
tempcmd[3] = (byte)((dataLength >>16) & 0xff);
tempcmd[4] = (byte)((dataLength >>24) & 0xff);
if (len>5)
{
Array.Copy(Data,0,tempcmd,5,dataLength);
}
return tempcmd;
}
}
}
Gianmaria I. said:Hi,
having a BitArray, how can i extract bits to create a System.byte
as in the example...
With
BitArray bits
and
Byte myNewByte
bits[0] to bits[7] => myNewByte
Nathan Kovac said:Thanks, I learned something from this too.
Nicholas Paldino said:Or, you could use the CopyTo method on the BitArray class. =)
--
- Nicholas Paldino [.NET/C# MVP]
- (e-mail address removed)
Nathan Kovac said:It has been since beta since I did any of this, but here is some old
source code that might help you out. Someone on this same forum had
helped me about 4 years ago with a similar problem when I was working
out a protocal for an online game. If you look at what I am doing there
are a couple choices that might help you accomplish what you need. Pay
special attention to how I calculate the data length from the first 4
bytes of my packet, this will probably be your most efficient method of
doing what you want. Here is my code.
using System;
using System.Runtime.Serialization.Formatters.Binary;
using System.IO;
using System.Diagnostics;
namespace MudClient
{
/// <summary>
/// Summary description for Packet.
/// </summary>
///
public enum PacketType:byte
{
IgnoreThisPacket,
BroadcastToServer,
LoginToServer,
LoginAccepted,
LoginDenied,
LoginReqestfromServer,
QuitToServer,
QuitToClient,
ServerShuttingDown,
SetCommandLineToClient,
CommandToServer,
CommandToClient,
TextToClient,
PingClient,
PongServer,
AbbrTextToClient,
RequestAbbrTextValue,
SendAbbrTextValue,
ClearAbbrTextOnClient
}
public class Packet
{
private byte command;
private int dataLength=0;
private byte[] Data;
public byte[] PacketData
{
get
{
return Data;
}
set
{
Data=value;
dataLength=Data.Length;
}
}
public int Length
{
get
{
if (Data==null)
return 5;
else
return dataLength+5;
}
}
public PacketType Command
{
get
{
return (PacketType)command;
}
set
{
command=(byte)value;
}
}
public string StrPacketData
{
get {return System.Text.Encoding.ASCII.GetString(Data);}
set
{
Data=System.Text.Encoding.ASCII.GetBytes(value.ToCharArray());
dataLength=Data.Length;
}
}
public Packet()
{
Command=PacketType.IgnoreThisPacket;
}
public Packet(PacketType cmd)
{
Command=cmd;
}
public Packet(byte[] thisdata)
{
if (thisdata.Length>0)
command=thisdata[0];
if (thisdata.Length>5)
{
dataLength =
(((int)thisdata[4]) << 24) +
(((int)thisdata[3]) << 16) +
(((int)thisdata[2]) << 8) +
((int)thisdata[1]);
if (dataLength>0)
{
Data=new Byte[dataLength];
Array.Copy(thisdata,5,Data,0,dataLength);
}
}
}
public Packet(PacketType cmd, byte[] thisdata)
{
Command=cmd;
Data=thisdata;
dataLength=Data.Length;
}
public Packet(PacketType cmd, string thisdata)
{
Command=cmd;
Data=System.Text.Encoding.ASCII.GetBytes(thisdata.ToCharArray());
dataLength=Data.Length;
Debug.WriteLine("setting dataLength to "+dataLength);
}
public byte[] Serialize()
{
int len=this.Length;
byte[] tempcmd=new byte[len];
tempcmd[0] = command;
tempcmd[1] = (byte)(dataLength & 0xff);
tempcmd[2] = (byte)((dataLength >> 8) & 0xff);
tempcmd[3] = (byte)((dataLength >>16) & 0xff);
tempcmd[4] = (byte)((dataLength >>24) & 0xff);
if (len>5)
{
Array.Copy(Data,0,tempcmd,5,dataLength);
}
return tempcmd;
}
}
}
Hi,
having a BitArray, how can i extract bits to create a System.byte
as in the example...
With
BitArray bits
and
Byte myNewByte
bits[0] to bits[7] => myNewByte
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