[Releaase] Packet Tutorial (general and SRO-specific)

[intercsaki]

I just wanted to mention, that your website is unreachable.

We are patient.


EDIT: While you're about rewriting the tuts, can you tell us some about using packets in C#? That would give some of us a real boost - me, for example.

[lesderid]

Originally Posted by intercsaki

I just wanted to mention, that your website is unreachable.

We are patient.

I know that it's still offline. I've been trying to turn it on for hours. I blame Host1Free.

[intercsaki]

I keep trying tomorrow. ^^

[evolution007]

attached rar with pictures for offline view. have fun

//removed by lesderid request

[lesderid]

Originally Posted by evolution007

attached rar with pictures for offline view. have fun

Could you please remove them? "Though no rights were ever claimed, please do not distribute these pictures separately."

You can download them from my site, but I don't want people sharing them on forums.

The site is now online again, sorry for the inconvenience.

[kevin_owner]

Originally Posted by intercsaki

I just wanted to mention, that your website is unreachable.

We are patient.


EDIT: While you're about rewriting the tuts, can you tell us some about using packets in C#? That would give some of us a real boost - me, for example.

Well I could give you a few tips. The easiest way to write a packet in .net is with the BinaryWriter and BinaryReader class.

			byte[] packet;
			using (MemoryStream memoryStream = new MemoryStream())
			{
				using (BinaryWriter writer = new BinaryWriter(memoryStream))
				{
					writer.Write((short)1);
					writer.Write((short)0x5000);
					writer.Write((short)0);
					writer.Write((byte)1);

				}
				packet = memoryStream.ToArray();
			}

			using (MemoryStream memoryStream = new MemoryStream(packet))
			{
				using (BinaryReader reader = new BinaryReader(memoryStream))
				{
					short dataSize = reader.ReadInt16();
					short opcode = reader.ReadInt16();
					short securityBytes = reader.ReadInt16();
					byte flag = reader.ReadByte();
					Console.WriteLine("Data in packet is: {0}", dataSize);
					Console.WriteLine("Opcode is: {0:X4}", opcode);
					Console.WriteLine("Security bytes are: {0}", securityBytes);
					Console.WriteLine("Encryption flag: {0}", flag);
				}
			}

This is a very small and basic example of how to write and read packets in C#. The first piece of code with the BinaryWriter created a packet and the 2nd part reads the packet we just created.

Once you have written a packet you can send it to the client or server using a Socket. You use a byte array to send and receive packets.

[intercsaki]

Originally Posted by kevin_owner

Well I could give you a few tips. The easiest way to write a packet in .net is with the BinaryWriter and BinaryReader class.

			byte[] packet;
			using (MemoryStream memoryStream = new MemoryStream())
			{
				using (BinaryWriter writer = new BinaryWriter(memoryStream))
				{
					writer.Write((short)1);
					writer.Write((short)0x5000);
					writer.Write((short)0);
					writer.Write((byte)1);

				}
				packet = memoryStream.ToArray();
			}

			using (MemoryStream memoryStream = new MemoryStream(packet))
			{
				using (BinaryReader reader = new BinaryReader(memoryStream))
				{
					short dataSize = reader.ReadInt16();
					short opcode = reader.ReadInt16();
					short securityBytes = reader.ReadInt16();
					byte flag = reader.ReadByte();
					Console.WriteLine("Data in packet is: {0}", dataSize);
					Console.WriteLine("Opcode is: {0:X4}", opcode);
					Console.WriteLine("Security bytes are: {0}", securityBytes);
					Console.WriteLine("Encryption flag: {0}", flag);
				}
			}

This is a very small and basic example of how to write and read packets in C#. The first piece of code with the BinaryWriter created a packet and the 2nd part reads the packet we just created.

Once you have written a packet you can send it to the client or server using a Socket. You use a byte array to send and receive packets.

Wow. Thanks. I save that for further examination. ;P Honestly, I'm not there (yet) to use these, I recently started to learn C# more comprhensively. But I'm sure this will be handy.

[lesderid]

Originally Posted by intercsaki

Wow. Thanks. I save that for further examination. ;P Honestly, I'm not there (yet) to use these, I recently started to learn C# more comprhensively. But I'm sure this will be handy.

You should honestly just use Drew's SilkroadSecurityAPI instead of reinventing the wheel.

[evolution007]

Originally Posted by lesderid

You should honestly just use Drew's SilkroadSecurityAPI instead of reinventing the wheel.

its quite hard to understand every part of program when you're newbie

[intercsaki]

Originally Posted by lesderid

You should honestly just use Drew's SilkroadSecurityAPI instead of reinventing the wheel.

Why though, I would know every single particle well. Which would help me in my future work.

After I gained enough experience (that sounds sro-ish), I'll concentrate on performance.

[mohgabr]

Great tutorials
But please can you fix :
-Tutorial 03: Using Packets in C#
-Tutorial 04: Using a Database

[lesderid]

Originally Posted by mohgabr

Great tutorials
But please can you fix :
-Tutorial 03: Using Packets in C#
-Tutorial 04: Using a Database

Read the first post.

[intercsaki]

Hey, I didn't even know I was looking for this!

Thanks Fate!