private void pollTimer_Tick(object sender, EventArgs e)
{
// First check for "set" messages
RailDriver.RDid id = RailDriver.RDid.None;
float value = 0.0f;
do
{
id = RailDriver.GetNextRailDriverId(id);
value = RailDriver.GetRailDriverValue(id);
if (id != RailDriver.RDid.None)
{
log("SET: " + id.ToString() + "(" + ((int)id) + ") => " + value.ToString());
}
} while (id != RailDriver.RDid.None);
// Now check for a 'get' message.
id = RailDriver.GetRailDriverGetId();
// GetRailDriverGetId returns -1 if nothing to get...
if (id != RailDriver.RDid.None)
{
RailDriver.RDmod mod = RailDriver.GetRailDriverGetType();
// return a dummy value to the driver
RailDriver.SetRailDriverValue(id, 42.0f);
log("GET: " + mod.ToString() + id.ToString() + "(" + ((int)id) + ")");
}
}
/* This class implements the backend of the protocol. It receives payloads and turns them into
* raildriver.dll calls.
*
* This is separate from the UDP code because I want to add RD-over-HTTP as well fairly shortly,
* so that we can control Train Simulator from a mobile or tablet. */
public void receivePacket(string addr, int port, string packet)
{
/* Here we can ignore addr and port for the moment. They are here because:
* 1. good for logging
* 2. later, adding some kind of ACL would be sensible.
*/
// If a packet contains an = sign, it's an assignment
if (packet.Contains('='))
{
string[] parts = packet.Split('=');
if (parts.Length != 2)
{
// TODO: Some error logging here.
return;
}
string name = parts[0];
RailDriver.RDid rdid = (RailDriver.RDid) 0;
float value = 0.0f;
try
{
value = float.Parse(parts[1]);
rdid = (RailDriver.RDid)Enum.Parse(typeof(RailDriver.RDid), name);
}
catch (ArgumentException e)
{
Console.WriteLine("Malformed packet: bad name.");
return;
}
catch (FormatException e)
{
Console.WriteLine("Malformed packet: bad value.");
return;
}
Console.WriteLine(rdid.ToString() + " => " + value.ToString());
RailDriver.SetRailSimValue(rdid, value);
}
}