private byte[] Serialize_ServerAdvertise_Message_PDU(ServerAdvertise_Message_PDU Message)
{ // Convert an Message_PDU structure into a byte array
byte[] bByteArray = new byte[m_iSA_MessageSize]; // Create a byte array to hold the serialised form of the message PDU
int iFieldOffset = 0; // Create an offset value which ensures the byte array is constructed with correct field positions and separations
byte[] bWorkingArray = BitConverter.GetBytes((Int32)Message.eMessageType);
Buffer.BlockCopy(bWorkingArray /*src*/, 0 /*source offset*/, bByteArray /*dest*/, iFieldOffset /*dest offset*/, m_iSA_FieldSize1 /*count*/);
iFieldOffset += m_iSA_FieldSize1; // Adjust offset for second field
int iDataLength2 = Message.cServerName.Length; // Get the length of data actually stored in field2 (variable length data, fixed size field)
Buffer.BlockCopy(Message.cServerName /*src*/, 0 /*source offset*/, bByteArray /*dest*/, iFieldOffset /*dest offset*/, iDataLength2 /*count*/);
iFieldOffset += m_iSA_FieldSize2; // Adjust offset for third field
bByteArray[iFieldOffset] = Message.iIP_Address_Byte_1;
iFieldOffset += m_iSA_FieldSize3; // Adjust offset for fourth field
bByteArray[iFieldOffset] = Message.iIP_Address_Byte_2;
iFieldOffset += m_iSA_FieldSize4; // Adjust offset for fifth field
bByteArray[iFieldOffset] = Message.iIP_Address_Byte_3;
iFieldOffset += m_iSA_FieldSize5; // Adjust offset for sixth field
bByteArray[iFieldOffset] = Message.iIP_Address_Byte_4;
iFieldOffset += m_iSA_FieldSize6; // Adjust offset for seventh field
iFieldOffset++; // Skip one byte to start port encoding on 4-byte boundary
bByteArray[iFieldOffset++] = (byte)(Message.iPort / 256); // Create the MSB byte of the port value
bByteArray[iFieldOffset++] = (byte)(Message.iPort % 256); // Create the LSB byte of the port value
bByteArray[iFieldOffset++] = 0; // Complete the encoding of the additional bytes (so that the natively Int16 port value is encoded as Int32)
bByteArray[iFieldOffset++] = 0; // Complete the encoding of the additional bytes (so that the natively Int16 port value is encoded as Int32)
return(bByteArray);
}
void Send_ServerAdvertisement_Broadcast() // this will send an broadcast to all players which is divdeded.
{
ServerAdvertise_Message_PDU Message = new ServerAdvertise_Message_PDU();
Message.eMessageType = MessageType.SERVER_ADVERTISE;
string sServerName = TruncateString(txtServerName.Text, MAX_SERVER_NAME_LEN);
Message.cServerName = Encoding.ASCII.GetBytes(sServerName); // turns servername into bytes.
byte[] bLocalAddress = m_LocalEndPoint.Address.GetAddressBytes();
Message.iIP_Address_Byte_1 = bLocalAddress[0]; //turns ip part1 into bytes
Message.iIP_Address_Byte_2 = bLocalAddress[1]; //turns ip part2 into bytes
Message.iIP_Address_Byte_3 = bLocalAddress[2]; //turns ip part3 into bytes
Message.iIP_Address_Byte_4 = bLocalAddress[3]; //turns ip part4 into bytes
Message.iPort = iPort; // gets the port.and turns it into the message that will be sent to everyone on the getaway.
byte[] bBuffer = Serialize_ServerAdvertise_Message_PDU(Message); // this will serialize the message array so it will be easy and short to send.
int iBytesSent;
try
{
iBytesSent = m_SendServerAdvertisementsSocket.SendTo(bBuffer, m_SendServerAdvertisementsEndPoint);
if (0 < iBytesSent)
{
}
}
catch (SocketException ex)
{
MessageBox.Show("Server Advertise broadcast send failed", "Snakes And Ladders"); //show message box that the server advertise failed.
}
}
