I am now doing the final touches on the vehicles.
the thing I am doin are:
1-make a load and save utility, make this can make simple for people to use.
2-move the default drive state machine to the controller, this provide default behavior.
3-better modeling of internal combustion engine. (much more realistic)
4-hook joystick controller.
5-conplete the lateral dynamics code for all speeds.
one thing I noticed is the startling differences when driving with the joystick.
I have the drive unplugged for the tire axel so that I can tune the engine.
but now that the tire can be turn smoothly you can see how much different the differential effect is, if you push the car with the mice, you can actually drive around for a long, long time without losing momentum.
and any one who has every try wring a vehicle simulation, or try one from any other engine know that the moment you turn the wheels, the car lose a long of speed because longitudinal drive force on the steering wheel is oppose to the direction of motion.
only a multibody can actually resolve this problem, because it turn out that the force in fact is zero.
and it is the force should be zero. It is a remarkable effect that once you see as an emerging behavior, it make sense, but is something that had bothered me for years.
No that I can finally use a analog controller I can see the nice behavior, that even it was there, it was still hard to see because for the keyboard discrete Input.
anyway if any one read this please check it out with a Game controller and know what you think.
This weekend I will complete the fine-tuning of the engine and plug it back to the drivetrain.