[JAVA][Beginning Java 8 Games Development]

Chapter 8 ■ Creating Your Actor Engine: Design the Characters for Your Game and Define Their Capabilities
public void setGravity(float gravity) {
this.gravity = gravity;
}
public float getBounce() {
return bounce;
}
public void setBounce(float bounce) {
this.bounce = bounce;
}
It is important to note that objects created using the Hero class also have access to the getter and setter methods
that we generated earlier for the Actor class. In case you are wondering what the Java keyword this means in all
of these .set() methods, it is referring to the current object that has been created using the Actor or Hero class
constructor method. Thus if you call the .setBounce() method off of the iBagel Bagel object (which we will soon be
creating in Chapter 10), this keyword is referring to this (iBagel) Bagel object instance. So if we wanted to set a 50%
bounce factor, we would make the following method call using our new .setBounce() setter method:
iBagel.setBounce(0.50);
Next let’s take a look at how these sprite Actor classes fit in with the other classes we have coded during the book
so far. After that, we will summarize what we have learned so far during this chapter, and we can move on into the
future chapters in this book, and use these classes to create sprites for our game, as we learn how to use sprites for
game play.
Updating the Game Design: How Actor or Hero Fit In
Let’s update the diagram that I introduced in Chapter 7 (Figure 7-19) to include the Actor.java and Hero.java classes.
As you can see in Figure 8-16, I had to switch the .update() physics and .collide() collision parts of the diagram, as
the Actor class only includes the .update() method, and the Hero class includes both of these methods. Since the
.collide() method will be called in the .update() method, I connected these two parts of the diagram with a chrome
sphere as well.
Figure 8-16. The current invincibagel package class (object) hierarchy, now that we have added Actor and Hero classes
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