[JAVA][Beginning Java 8 Games Development]

Chapter 10 ■ Directing the Cast of Actors: Creating a Casting Director Engine and Creating the Bagel Actor Class
Another ArrayList Object: COLLIDE_CHECKLIST Data Store List
Now let’s create our second List ArrayList data store object and call it COLLIDE_CHECKLIST since it
will eventually be accessed in the .collide() method; this will happen if you implement complex multiple object
collision lists in later advanced stages of game development. We will not get to the advanced level that will require
implementation of this during this book, but I wanted to show you how to put a complete CastingDirector class
together, so that you will have it in place when you need it for your game development, as you add more advanced
features into your game. This object will hold the most current copy of the CURRENT_CAST ArrayList and
will have two methods. The .getCollideCheckList() method will return the COLLIDE_CHECKLIST object, and the
.resetCollideCheckList() will reset the COLLIDE_CHECKLIST, by using the .clear() method call, and for now, we
will use the .addAll() method to load COLLIDE_CHECKLIST ArrayList object with the current version of the
CURRENT_CAST ArrayList object. Later we can use this List to hold a custom collision checklist, that groups
together only objects that can collide with each other into one List. The Java code, which can be seen in Figure 10-7,
needed to declare and instantiate the object, should look like the following:
private final List COLLIDE_CHECKLIST = new ArrayList();
Figure 10-7. Add a COLLIDE_CHECKLIST List object, .getCollideCheckList(), and resetCollideCheckList()
methods
A .getCollideCheckList() method uses a return keyword, to give access to the COLLIDE_CHECKLIST, like this:
public List getCollideCheckList() {
return COLLIDE_CHECKLIST;
}
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