Today I finally got around to commit a series of patches / changes to the AI system. Thomas Foerster contributed some new code that will allow us to specify aircraft performance data, which will allow runway length calculations on a per aircraft base. He also contributed an implimentation of the "Dijkstra" route finding algorithm, which outperforms my own make shift algorithm by magnitudes.
In the mean time, I have been working on detecting and resolving higher order interaction problems, in the network. A higher order interaction, labelled "circular wait" by me is a situation where aircraft a waits for b, b waits for c, and c waits for a. Eventually, a situation like this will block the entire traffic pattern at the airport. So detecting and resolving is crucial. The detection code works, fairly well, but the resolution is currently rather crude: remove one of the offending aircraft from the scene. Finding a better solution is necessary, but that will take time. Today, I got my head around implementing different runway assignments based on traffic type. There was already rudimentary support for this, but everything was defaulted to one type of traffic at the front end. Finally, Innis Cunningham sent me a nice traffic demo for the San Francisco area, which I have just committed. There's an interesting variety of aircraft, right now. Cheers, Durk ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
