Ni worked on it some time ago. If you are interested:
At the end I can tell you, it's worthless, you can edit and move the map files, but if the navemesh files doesn't fit the map files you will get strange errors, blocked invisible paths and flying characters. If Joymax don't release their tools or a person with high knowldegde on reverse enginnery do a tool for manage the navemesh and the map files you won't succeed at editing maps.
Let me explain better, you need to edit the map files .m, .o and something else i dont remember right now. with those files u generate the navmesh files and another bunch of files and thats just to move things around and having a consistent map (collision + view wise).
To be able to insert new objects, you need to edit or add the model files .bsr,.bsm,etc, including writing exporters from the modeller app to sro files and do the above all over again.
And the pk2 reader/writer its just to add files to the pk2 wont help you with the rest and doing this by hand its just plain stupid.
But if someone want to dive into this stuff i recommend u read about matrix and transformations, basic knowledge of algebra and trigonometry is a must known
Well navmesh just define the walkable areas of the map, jmx have 2 version of it 1 for dungeons (.dat) and another one for outdoors (.nvm).
Collision u do it like u would do with any game, check if you collide with the model or not but theres alot of info out the in the internet and bunch of libraries to do it too. But in the end all ends too the basic intersection tests, aabbs/lines/triangles/planes/segments all those algorithm are in the internet also.
Another important issue is taking into account orientation and position of the model in the world.
Well navmesh just define the walkable areas of the map, jmx have 2 version of it 1 for dungeons (.dat) and another one for outdoors (.nvm).
Collision u do it like u would do with any game, check if you collide with the model or not but theres alot of info out the in the internet and bunch of libraries to do it too. But in the end all ends too the basic intersection tests, aabbs/lines/triangles/planes/segments all those algorithm are in the internet also.
Another important issue is taking into account orientation and position of the model in the world.
I don't want to be too cheeky, but I'd be happy if you could share some information about the way you did it with your emulator.
which algorithm did you use?
how did you work with the navmesh files? did you decrypted the files and stored it somewhere?
if so, can you share such thing or the program you used to get all of the information?
I know I'm asking much, but I am completely lost and I could really use some help here
Thansk for your reply btw
Edit:
Just noticed your posts on the other thread.. now I feel silly xD
didn't know it was such a big secret, never mind then.. thanks for the information of course!
Well i wont write all the details about it. Just points some stuff.
Well first the navmesh is just a mesh, mesh is a surface subdivided into smaller polygons mainly triangles/quads, its used for AI path finding applications. How to get from point A to point B.
So for the navigation part , AI just use any path finding algorithm, like A* (google it) with each quad vertex as a node for example and u just transverse the generated graph . But for non-AI what i used is just intersect the motion segment (src,dst) with the polygons, that means finding the quad where ur at and moving to the next quad adjacent that intersects the segment, and since ur always moving in a straight line its simple.
That kinda resume it all, in overall, atleast what i did.
Collision wise is more like testing if you collide with each model or not.
About the files i just load them into memory and fit the data to my needs, i didnt want to write a converter kekeke.
How i got the info, hex editor + some experience xD, in the end i wrote my own app to display stuff bcz its easier and theres tons of WTF information out there and bunch of files to just inspect them 1 by 1 =P
Well i wont write all the details about it. Just points some stuff.
Well first the navmesh is just a mesh, mesh is a surface subdivided into smaller polygons mainly triangles/quads, its used for AI path finding applications. How to get from point A to point B.
So for the navigation part , AI just use any path finding algorithm, like A* (google it) with each quad vertex as a node for example and u just transverse the generated graph . But for non-AI what i used is just intersect the motion segment (src,dst) with the polygons, that means finding the quad where ur at and moving to the next quad adjacent that intersects the segment, and since ur always moving in a straight line its simple.
That kinda resume it all, in overall, atleast what i did.
Collision wise is more like testing if you collide with each model or not.
About the files i just load them into memory and fit the data to my needs, i didnt want to write a converter kekeke.
How i got the info, hex editor + some experience xD, in the end i wrote my own app to display stuff bcz its easier and theres tons of WTF information out there and bunch of files to just inspect them 1 by 1 =P
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