[JAVA][Beginning Java 8 Games Development]

Chapter 11 ■ Moving Your Action Figure in 2D: Controlling the X and Y Display Screen Coordinates
Yet again you have made a ton of progress during this chapter in getting your primary InvinciBagel.java class
optimized, implementing all of the classes that you have coded thus far in this book, wired the game play loop engine
into your primary game character, tested all of your ActionEvent and KeyEvent handling, and had an all-around good
time doing it! I would call that a pretty successful chapter, and we will continue to have a good time in every chapter!
Summary
In this eleventh chapter, we reorganized our primary InvinciBagel.java class to extract the five key game creation
Java statements, and then organized the rest of the Java code into eight logical methods (routines), six of them
which we created from scratch during this chapter. The six new methods serve to parcelize things such as adding
Image assets, creating new Actor objects, adding Actors to the Scene Graph, adding Actors to the Cast, creating and
starting the Game Engine, and implementing the game key event handling routines. We added object declarations
so that we could create a new iBagel Bagel object for our game’s primary character, and also created a castDirector
CastingDirection engine so that we could manage our cast members as we add them to the game in later chapters.
We learned about import static statements, and we saw how to use them to wire our iBagel Bagel object to the
GamePlayLoop.java engine .handle() method. We also used these import static statements to allow our Bagel.java
class to process the Boolean up, down, left, and right variables in the .update() method.
Next, we covered how to use conditional if statements to determine which key events (held in four Boolean
variables) were being used by the game player. We placed this logic inside of the Bagel class .update() method, which
as we know is being rapidly executed 60 times per second by the GamePlayLoop .handle() JavaFX pulse engine.
Finally we tested all of the new methods and Java statements that we added during the chapter to see if the basic
game sprite movement works. We observed some of the things that we will need to address in future chapters, and
thoroughly tested the existing KeyEvent handling methods and iX, iY, vX, and vY attributes of the abstract Actor class
that we created as the foundation for all of our game actor assets.
In the next chapter, we are going to take a closer look at the JavaFX Node class and also take a look at advanced
concepts regarding moving the game sprite around your screen, as well as how to ascertain the boundary (edges) of
the screen, character direction, movement velocity, and related animation and movement considerations.
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