Hi, I'm new to Ruby. I'm going to start a new project and I'd like
to know how could organize the classes.
I want to make a directory structure that allows me to have the classes
ordered and organized, like I'd do with C or Java.

How must I reference a class X from class Y if class X is in different directory?
Is there a variable like CLASSPATH or anything else?
How have I to specify where are my classes?

Thanks.