You should look into this tutorial for the basics:
http://www.opserver.de/coni_users/web_users/pirvu/au/tutorials/zipped/astar_en.zip

After that consider the usage of structs (Look at Rakschas post and manual) for your data and you might also have a look at this:
http://aigamedev.com/open/tutorial/symmetry-in-pathfinding/

Last edited by Puppeteer; 02/20/12 22:19.
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