[JAVA][Beginning Java 8 Games Development]

Chapter 4 ■ An Introduction to JavaFX 8: Exploring the Capabilities of the Java 8 Multimedia Engine
The Point2D and Point3D classes (objects, ultimately) hold x, y coordinates for a 2D point on a 2D plane or x, y,
z coordinates for a 3D point in 3D space. These Point objects will be used to build more complex 2D or 3D structures
made up of a collection of points, such as a 2D path or a 3D mesh. The Point2D and Point3D constructor method calls
are not overloaded, and they use the following standard formats, respectively:
Point2D(double X, double Y)
Point3D(double X, double Y, double Z)
The Rectangle2D class (object) can be used to define a rectangular 2D area, often referred to as a plane, and has
many uses in graphics programming, as you might well imagine. A Rectangle2D object has a starting point in the
upper left-hand corner of the rectangle specified, using an x and a y coordinate location as well as a dimension
(width by height). A constructor method for a Rectangle2D object has the following standard format and is not
overloaded:
Rectangle2D(double minX, double minY, double width, double height)
In addition, a Dimension2D class (object) specifies only the width and height dimensions and does not place the
dimensions (which would make it a rectangle) on the screen using an x, y location. This class’s constructor method
is as follows:
Dimension2D(double width, double height)
The Insets class (object) is like a Dimension2D class, in that it does not provide a location value for the inset
but does offer offsets for a rectangular inset area, based on top, bottom, left, and right offset distances. The Insets
method is in fact overloaded, so you can specify an equidistant inset or a customized inset, using the following code:
Insets(double topRightBottomLeft)
Insets(double top, double right, double bottom, double left)
The Bounds class is a public abstract class and will never be an object, but instead is a blueprint for creating
Node boundary classes, such as its BoundingBox subclass. The Bounds superclass also allows a negative value,
which is used to indicate that a bounding area is empty (think of it as null, or unused). A BoundingBox class uses
the following (overloaded) constructor methods to create a 2D (first constructor) or 3D (second constructor)
BoundingBox object:
BoundingBox(double minX, double minY, double width, double height)
BoundingBox(double minX, double minY, double minZ, double width, double height, double depth)
Next, let’s take a look at Event and ActionEvent processing in JavaFX, as this will add interactivity to your games.
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