Mogrenewt and Vehicle class

Hi,

Is the Vehicle class implemented in the latest mogrenewt builds? it seems like it's not available and in the mogrenewt source it is "hidden" behind "#ifdef INCLUDE_VEHICLE".
I tried to compile with it and I get tons of errors, so I guess it's hidden for a reason, but I still noticed an example that is using it as if it's implemented:
https://svn.code.sf.net/p/mogre/code/tr ... leVehicle/

If it's not implemented, are there any known alternatives that were created?

Thanks

Hi OwwZ,

welcome to our Mogre community.

Possibly the Vehicle class was implemented in an older version of the MogreNewt wrapper.
One day the wrapper was updated from Newton 1 to Newton 2. Maybe there were problems with wrapping this function (or it was removed from Newton??).

Yes, you could try to re-add it by modification of the sources.
The compilation is a little bit tricky if you don't have all needed files on the correct places.
Here I wrote some information about: viewtopic.php?p=100289#p100289

I hope this helps you.

Thank you Beauty for responding, and for welcoming me.

I managed to compile it with the Vehicle class disabled, (I also added the HeightFieldCollision feature posted here 2 years ago by cyberjunk because I needed it to be compiled against newton 2.35 and Mogre 1.7.4+new terrain build and I would gladly post it in here if I knew how - I couldn't find such compiled builds and I think it can help others that don't know how to compile mogrenewt AKA me about a week ago ).


Sadly if I understand what I read in the Newton documentations/forums correctly, they dropped the Vehicles support with Newton 2 (in fact most of the Newton functions that are being used by the Vehicle class in Mogrenewt are omitted in the Newton 2 source code). I guess it's possible to do it in other ways, but I couldn't find any explanation or even a hint/lead about what those ways are.

After several... umm... unusual attempts made out of pure desperation (getting the Vehicle class to work in mogrenewt 2 by using the relevant Newton 1 functions for the Vehicle class from the Newton 1 lib, or using both Mogrenewt 1 and 2 at the same time in one world) I tried to create my own C# Vehicle class as part of my project code that uses mogrenewt 2.

I got something that has independent wheels and can go forward/reverse over a terrain in somewhat reasonable way, but I have almost no knowledge about physics so I wouldn't even know where to begin in order to make it turn properly in a way that will act even remotely close to a vehicle.

I assumed that creating a "simple" (not necessarily super-realistic, something that goes forward/back and can turn) vehicle or something similar would be quite a common need among game developers, I got to admit that I'm very surprised regarding how little information I found about this subject in the Ogre/Mogre/Newton "area" (all I could find is how to do it with the old Newton version that supported the Vehicle class), or maybe I'm just not looking hard enough?

I managed to compile it
Nice to hear that you were successful.

I also added the HeightFieldCollision feature
This is interesting. Some years ago I missed this feature.

I would gladly post it in here if I knew how
This would be nice. Aside the binaries you should publish the updated code.
You can upload it to your private BitBucket account and then create a pull request to the official repository.
If you don't have a BitBucket account yet, just create it. It's very easy. Then create a new repository and tell the wizard point to the official repository.

compiled against newton 2.35
The latest binary version of Newton 2 seems to be 2.36.
Changelog: Minor buf fixes on ray cast and in capsule and cone shapes. Also last public realease of core 200.
If you are interested, look here: http://code.google.com/p/newton-dynamics/downloads/list

Sadly [...] they dropped the Vehicles support with Newton 2 [...].
I guess it's possible to do it in other ways, but I couldn't find any explanation or even a hint/lead about what those ways are.
Did you look to the forum of the Newton community?
When I had problems and requests, I got good support.
If you don't find useful information there, don't be afraid to create a new topic.
By the way: The Newton author (Julio Jerez) published the Newton source code. So in general it could be possible to (re-)add missing features.
It would be interesting, why the vehicle class was removed. Perhaps there are discussions about in the forum.
The Newton forum you find here: http://newtondynamics.com/forum/index.php

I tried to create my own C# Vehicle class as part of my project code [...] but I have almost no knowledge about physics
Nice idea, but it's not easy to create a vehicle dynamics model. I created a simple model for an underwater vehicle with the application Matlab/Simulink. A team mate created a more complex model for an off-the-road vehicle, which tooks several weeks for a realistic looking behaviour.
I think this sub forum (with only a few active members) is no good place for asking for this topic.
My suggestions: Search in (or ask in) the Newton forum and a game developer forums. Possibly you get links to related open source projects. (I suppose you already searched by Google.)