[JAVA][Beginning Java 8 Games Development]

Chapter 11 ■ Moving Your Action Figure in 2D: Controlling the X and Y Display Screen Coordinates
Powering the iBagel Actor: Using the GamePlayLoop
Next let’s “wire up” or make the connection between these game engines that we have been putting into place in our
game code infrastructure during the first half of the book. The first thing that we will need to do is to tell our GamePlay
Engine in the GamePlayLoop AnimationTimer subclass that we want to have it look at (update) the iBagel Bagel
object on every pulse. There are two major lines of code that we will need to install in the GamePlayLoop.java class
for this to happen. The first is a reference to the static Bagel object named iBagel that we declared in the code that is
shown in Figure 11-3 using the import static invincibagel.InvinciBagel.iBagel Java statement. The second line
of code that we need to install will live inside of the .handle() method, and will serve to “wire” the .handle() method
(the pulse engine) to the iBagel object using its .update() method. The new GamePlayLoop class import statements
and .handle() method should look like the following Java code, shown error-free in Figure 11-11:
import javafx.animation.AnimationTimer;
import static invincibagel.InvinciBagel.iBagel;
public class GamePlayLoop extends AnimationTimer {
@Override
public void handle(long now) {
iBagel.update();
}
}
Figure 11-11. Add a Java statement inside of the GamePlayLoop .handle() method invoking an iBagel.update() method
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