Hello Everyone,

This is my first posting in the forums since everything problem I've come across had already been solved by one of you experts already.
Now that I'm done puckering...

Background:
I'm making a racing game where sprites follow a path exactly.  Through other forum posts I have accomplished this.
The game is basically a Tyco Racing track game where users can layout predefined pieces of track that will be "welded" at runtime.

Problem:
I'm having troubles creating a perfect quarter circle or a half circle (see below), the ends of the circle need to be able to continue on a straight line at each end.
 

I've downloaded the Curve Editor program and I still cannot accomplish this.

I would imagine that the quarter circle might be created using two points and specifying Flat and Linear.  And the half circle maybe using three points (don't beat me up if I'm way off).
It seems like it would be simple, but I just don't get it, every attempt results in a path that looks like Sloth's head.


Thank you in advance!!!

- Nick