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detecting sim reset

O

oliver_mpt

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46
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france
Hello,

I'd like to get some advice on how to detect properly the sim reset :

I am working on a TCAS implementation and I fill a table using EVENT_OBJECT_ADDED/REMOVED as planes are fed in by the AI engine.
Now when the sim reset (new situation loaded, flight restarted, ...) I need to cleanup the table and restart it.
How to detect that a reset is being done properly ? I also need to get it before AI traffic is generated. sim start/stop events does not seem appropriate since the doc mention that they are generated when the user navigate in the menus (I don't want to erase my TCAS table if the user opens a menu ...)

Thanks for your kind help,

Oliver
 
oliver_mpt said:
I am working on a TCAS implementation and I fill a table using EVENT_OBJECT_ADDED/REMOVED as planes are fed in by the AI engine.
Now when the sim reset (new situation loaded, flight restarted, ...) I need to cleanup the table and restart it.
How to detect that a reset is being done properly ? I also need to get it before AI traffic is generated.
Click to expand...

There's really no need for any special actions. You will get the REMOVED notifications for everything being removed as well as ADDED notifications for everything added, when the user restarts, or chooses a new flight, or even changes the time or Traffic sliders (upwards) -- maybe you even forgot that traffic is reloaded in such events too?

Just process all REMOVED and ADDED events and you will be fine. That's all FSUIPC4 does and there's no problems maintaining the tables.

Regards

Pete
 
Hello Pete !

Thanks for the fast answer. When I read it, I realized that you were absolutely right (as always) - Then something must be wrong with my code. I stepped through it with the debugger while starting and resetting FSX and noticed something strange :
Starting the simulator, the first object allocated has ID# 2, and then objects ID keep increasing, so they are stored in my table.

Then when I reset the sim, it removes objets but I received a REMOVE event for object #1, which was not created at startup. Then my object count is false; hence the bug ...

Am I correct assuming object #1 is the user aircraft - Why I don't catch a creation event for it ?

regards

Olivier
 
oliver_mpt said:
Am I correct assuming object #1 is the user aircraft - Why I don't catch a creation event for it ?
Click to expand...

Yes, the user aircraft ID is 1, initially in any case. It is created before you get any sort of connection, so you won't see that. It might not be 1 still when it comes back -- in multiplayer modes the ID can change.

You need to read the IS USER SIM variable for each aircraft notification, whether Added or Removed, and ignore it if that is TRUE.

Regards

Pete
 
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