Final project - Nikhil Dvivedi.

For my final project i modeled some roads and an intersection. There
are buildings and a pond to make it look sorta realistic. There is
a "car" that can be driven on the roads. I implemented basic collision
detection so that the car cant be driven into walls or the pond. To
do this i simply figured out where the car could be, and just manually
checked on every movement if the car was out of the "valid" zones. If
i detected the car moving out of the valid zone i would straighten out
the car based on what directoin it was heading when it hit the wall.

For the car i created a structure to hold all its relavent data. The
structure has a float array for position another float array for
direction, a float for an angle to represent what direction the car
was turning, and a float for velocity. The direction vector was always
unitized so when the car turned i would calculate a rotation matrix and then
multiply it by the current direction vector. When i needed to calculate the
next position for the car i would take the current position vector and add
it to the directoin vector mulitiplied by the current velocity to get the
new position vector. After this i would do the collision detection stuff
described above.

The rest of the stuff was pretty straight forward, using quadstrips
for all the other surfaces and putting textures onto them.

I did almost everything i wanted to, but if i had maybe 10 more hours
i would do a more advanced collision detection system. Instead of
just straightening out the car when it a wall, which gives the
car a very jerky animation when it hits a wall, i would have
slowly adjusted the angle until it was straignted out so it would
be a smoother looking animation. I also would have like to implement
traffic lights at the intersection that would actually change between
red/green/yellow realistically. Lastly i would have done a better model
for the car.