Define at least one reference path for the CPU driven cars.
REMARKS:
The Path object is a 3d-spline you can define by
providing a list of coordinates (the path nodes).
While I could type the coordinates manually, or generate them with a third party software,
for my purpose the built-in path-recording functionality is the easiest.
Run-time, the Path object can record its location.
I attach the Path object to my car, switch it to 'recording-mode' and then I
drive along the race course.
Note that, to actually record the path nodes (key locations that define the path)
I have to press the [R] key while I drive.
You should hear a sound in the movie every time I press the [R] key. The sound you hear
when the simulation is started (Project -> Play) signals that the path
object is in recording mode.
After one lap, I have enough nodes to define a complete path around the track,
so I can stop the simulation and go back to the editor.
To place the recorded path to its original location I must make sure that its coordinates
are identical to the first coordinates recorded.
