[JAVA][Beginning Java 8 Games Development]

Chapter 12 ■ Setting Boundaries for Your Action Figure in 2D: Using the Node Class LocalToParent Attribute
of the class, to create an invinciBagel reference object (the variable will hold a reference to this object in memory) to
hold this information. The reason I am making this protected access is so that if we make any subclass using Bagel, it
will have access to this contextual object reference information. This object declaration would use the following Java
statement, located at the very top of the Bagel.java class, as shown in Figure 12-4:
protected InvinciBagel invinciBagel;
Figure 12-4. Add an InvinciBagel object variable named invinciBagel, and add the object into the constructor method
Next, let’s add the InvinciBagel context object into the front of the Bagel() constructor’s parameter list, since we
can’t put it at the end of the parameter list, because we’re using the end of the parameter list to hold our Image... List
(or Array, at some point in the code it is both of these) specification. Inside of the constructor method itself, you’ll set
the InvinciBagel reference object, which is passed into the constructor method using the name iBagel, to equal an
invinciBagel variable, which you have already declared at the top of the Bagel.java class. This would all be done using
the following modified Bagel() constructor method structure, which can be seen highlighted at the top of Figure 12-4:
public Bagel(InvinviBagel iBagel, String SVGdata, double xLocation, double yLocation,
Image... spriteCels) {
super(SVGdata, xLocation, yLocation, spriteCels);
invinciBagel = iBagel;
}
As you can see in Figure 12-4, our code is error-free, and we are ready to go back into our InvinciBagel.java class
and add the Java this keyword into the Bagel() constructor method call. Doing this will pass an InvinciBagel class
(object) reference object over to the Bagel.java class (object) so that we will be able to use the .is() and .set() methods
from the InvinciBagel class without having to specify any import statements whatsoever. You can also delete the four
import static statements at the top of your Bagel.java class. As you can see in Figure 12-4, I have deleted these static
import statements already.
Now let’s go back into the InvinciBagel.java NetBeans editing tab, and finish wiring the two classes together.
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