© Will Briggs 2019
Will BriggsC++ for Lazy Programmershttps://doi.org/10.1007/978-1-4842-5187-4_11

11. Animation with structs and Sprites

Will Briggs
(1)
Lynchburg, VA, USA
 
Time to make some movies. We’ll need a few more features.

structs

A str uct is a way of bundling information.
struct <name>
{
      <variable declaration>*
};
For example, here’s a type we’ve needed for a while: a geometric point. It has two parts, x and y.
struct Point2D
{
      int x_, y_;
};
(The trailing _’s are a convention meaning “member of something else.” We’ll see why that’s worth bothering with in Chapter 16.)
This version’s even better: we’ll build default values right into the struct. 0 is a good default.
struct Point2D
{
      int x_=0, y_=0;
};
Now we can declare points using our ...

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