PS Pathfinding

[stefanjp]

Hi,
i am not sure, if this is the right forum section, but i hope to get an answer here most likely.
I am about to develope a RPG like game, based on the Crystal Space engine. I was thinking about implementing an path finding algorithm myself, but i relised that an efficient algorithm would be a very time consuming task. With pathfinding i mean a algorithm, that calculates a path from point A to point B on a map with obstacles. I don't need AI pathfinding. My question is: Does Crystal Space provide a pathfinding algorithm. How did the PS project implement pathfinding? I couldn't find anything in the source code. I would be glad if anybody could give me a hint, where to search for the PS implementation of pathfinding.

Thanks for your time,

stefanjp

[weltall]

the npcclient folder is your destination.

[stefanjp]

Thanks for your answer. I was searching in the server and client folder. I guess the "pathfind.h" is included in the (players character) client too. I am curious, where the player path finding is processed (client or server). I did a bit of research on A*. The algorithm itself is not so hard to understand, but the implementation of pathfinding on a "poligon map" is hard to figure out for me. How can i canculate the graph (esp. the nodes = passable polygons). For one character a poligon may be passable, for another it isnt. Some ares are passable by walking over multiple poligons (when a single poligon is to small for the character). How can i consider this in the graph calculation. How can i disign my map to make pathfinding efficient? Is it possible to use polygons with different numbers of edges for path finding? Anybody has a link or some ideas for me?

Thanks in advance,

stefanjp

PS. I hope my english is readable 

[weltall]

i suggest trying to contact someone who actually works on the npcclient like khaki. he would be more proper to answer your questions