//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Callback Dispatch Comments: PWB: Callbacks to the controller from the JetterCommManager MUST be delgated to the WPF thread
// that handles the UI for the _game_stage - otherwise the WPF game_stage objects are not accessable
// the program will crash. So we use a pattern that bundles up the arguments and has
// the WPF engine call a "dispatch method" with the arguments on the UI thread.
// MSDN BeginInvoke exanple info: http://msdn.microsoft.com/en-us/library/ms741870.aspx
// Also intresting: http://stackoverflow.com/questions/1207832/wpf-dispatcher-begininvoke-and-ui-background-threads
///////////////////////////////////////////////////////////////////////
public void PilotRequest(string from_pilot, PilotCommand pilot_command)
{
// NOTE: See "Callback Dispatch Comments" for explanation of the dispatch pattern and why it is needed.
// Bundle up the arguments.
PilotRequest_DispatchDelegateArgs args = new PilotRequest_DispatchDelegateArgs(from_pilot, pilot_command);
// Delegate the work such that the UI thread of the game_stage calls the XXX_Dispatch() method
// to do the actual work.
_game_stage.Dispatcher.BeginInvoke(DispatcherPriority.Normal,
new PilotRequest_DispatchDelegate(PilotRequest_Dispatch),
this, new object[] { args });
}
private void PilotRequest_Dispatch(object sender, PilotRequest_DispatchDelegateArgs args)
{
string trace_msg = "Pilot request: from: " + args.from_pilot + " cmd: " + args.pilot_command.command.ToString();
Trace.WriteLine(trace_msg);
PilotControllerInfo pilot_info = null;
pilot_dictionary.TryGetValue(args.from_pilot, out pilot_info);
if (pilot_info != null)
{
pilot_info.actor.Sprite.PilotRequest(args.pilot_command);
}
else
{
string msg = "!!! Controller could not find pilot: " + args.from_pilot;
Trace.WriteLine(msg);
}
}
