[JAVA][Beginning Java 8 Games Development]

Chapter 12 ■ Setting Boundaries for Your Action Figure in 2D: Using the Node Class LocalToParent Attribute
Enhancing GamePlayLoop.java: Creating a GamePlayLoop( ) Constructor Method
Let’s perform a similar work process in the GamePlayLoop.java class to what we did in the Bagel.java class. Add a
protected InvinciBagel invinciBagel; statement at the top of the class. Next, create a public GamePlayLoop()
constructor method, with an InvinciBagel object named iBagel inside the parameter list. Inside the GamePlayLoop()
constructor method, set the iBagel InvinciBagel object reference equal to the protected InvinciBagel invinciBagel
(reference) variable so that we can use the new invinciBagel InvinciBagel object reference inside of the
GamePlayLoop .handle() method. This will allow us to call the .update() method off of the iBagel Bagel object using
the invinciBagel InvinciBagel reference object. The GamePlayLoop class and constructor method structure, along
with a new .handle() method body, which includes a revised invinciBagel.iBagel.update() method call path (object
referencing structure), are shown error-free in Figure 12-8, and should look like the following Java code:
public class GamePlayLoop extends AnimationTimer {
protected InvinciBagel invinciBagel;
public GamePlayLoop(InvinciBagel iBagel) {
invinciBagel = iBagel;
}
@Override
public void handle(long now) {
invinciBagel.iBagel.update();.
}
}
Figure 12-8. Make the same change to GamePlayLoop by adding an invinciBagel InvinciBagel variable and
constructor
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