Object-oriented programming (OOP) is a different way to think about your programs. Although the term “object-oriented programming” may sound intimidating, there’s good news: you’ve been working with objects since Chapter 7, when you started using
PShape. Unlike the primitive data types
float, which can store only one value, an object can store many. But that’s only a part of the story. Objects are also a way to group variables with related functions. Because you already know how to work with variables and functions, objects simply combine what you’ve already learned into a more understandable package.
Objects are important, because they break up ideas into smaller building blocks. ...