clientless connection

 public static string DecryptGamePacket2(byte[] str)
    {
        string decrypted_string = "";
        char[] table = { ' ', '-', '.', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'n' };
        int count = 0;


        for (count = 0; count < str.Length-1; )
        {
            if (str[count] <= 0x7A)
            {
                byte len = str[count];

                for (int i = 0; i < (int)len; i++)
                {
                    count++;

                    decrypted_string += Function.getextendedascii((count < str.Length ? str[count] : 0) ^ 0xFF);
                }
                int x = decrypted_string[1];
                count++;
            }
            else
            {
                byte len = (byte)str[count];
                len &= (byte)0x7F;

                for (int i = 0; i < (int)len; )
                {
                    count++;
                   
                    byte highbyte = str[count];
                    highbyte &= 0xF0;
                    highbyte >>= 0x4;

                    byte lowbyte = str[count];
                    lowbyte &= 0x0F;

                    if (highbyte != 0x0 && highbyte != 0xF)
                    {

                        decrypted_string += table[highbyte - 1];
                        i++;
                    }

                    if (lowbyte != 0x0 && lowbyte != 0xF)
                    {
                        decrypted_string += table[lowbyte - 1];
                        i++;
                    }
                }
                count++;
            }
        }

        return decrypted_string;

    }

   public static string DecryptGamePacket( int session_id, byte[] str, int length )
        {
            string encrypted_string = "";
            byte session_key = (byte)(session_id & 0xFF);
            byte session_number = (byte)(session_id >> 6);
            session_number &= (byte)0xFF;
            session_number &= unchecked((byte)0x80000003);

            switch (session_number)
            {
                case 0:
                    for (int i = 0; i < length; i++)
                    {
                        byte firstbyte = (byte)(session_key + 0x40);
                        byte highbyte = (byte)(str[i] - firstbyte);
                        encrypted_string += highbyte + " ";
                    }
                    break;

                case 1:
                    for (int i = 0; i < length; i++)
                    {
                        byte firstbyte = (byte)(session_key + 0x40);
                        byte highbyte = (byte)(str[i] + firstbyte);
                        encrypted_string += highbyte + " ";
                    }
                    break;

                case 2:
                    for (int i = 0; i < length; i++)
                    {
                        byte firstbyte = (byte)(session_key + 0x40);
                        byte highbyte = (byte)(str[i] - firstbyte ^ 0xC3);
                        encrypted_string += highbyte + " ";
                    }
                    break;

                case 3:
                    for (int i = 0; i < length; i++)
                    {
                        byte firstbyte = (byte)(session_key + 0x40);
                        byte highbyte = (byte)(str[i] + firstbyte ^ 0xC3);
                        encrypted_string += highbyte+ " ";
                    }
                    break;

                default:
                    encrypted_string += 0xF;
                    break;
            }

         /* string[] var2 = encrypted_string.Split(' ');
          byte[] bytes = new byte[var2.Length-1];
       for (int i = 0; i < bytes.Length; i++)
       {
           bytes[i] = Byte.Parse(var2[i]);
       }

       string save = "";
        save += DecryptGamePacket2(bytes);
        */
            string[] var2 = encrypted_string.Split(new string[] { "255 " }, StringSplitOptions.None);// return string less 255 (2 strings)
           byte[][] bytes = new byte[var2.Length -1][]; 
            for (int i = 0; i < bytes.Length; i++)
            {
                string[] temp = var2[i].Split(' ');
                 bytes[i] = new byte[temp.Length-1];
                 for (int j = 0; j < bytes[i].Length; j++)
                    {  
                        bytes[i][j] = Byte.Parse(temp[j]);
                     }
            }
            string save = "";
            for (int i = 0; i < bytes.Length; i++)
            {
                save += DecryptGamePacket2(bytes[i]);
                save += (char)0xFF;
            }
           
       return save;
}