3d roller coaster

Hi can any one direct me to a good code sample of a basic roller coaster type program???


Sorry but I have to boast about this. I am great friend with Chris Sawyer who made the kick ass game Roller Coaster Tycoon (and Transport Tycoon) I could get some hints from him, however it is only really a 2d tilling technique.

Don’t tell anything about Transport Tycoon. I have been crazy. I played it through weeks and months. Actually, I would like to now… So stop talking 'bout it!!!

IIRC www.zintel.com has a roallercoaster like demo