[JAVA][Beginning Java 8 Games Development]

Chapter 15 ■ Implementing Game Audio Assets: Using the JavaFX AudioClip Class Audio Sequencing Engine
Triggering the .playiSound( ) Methods in Bagel.java: The .playAudioClip( ) Method
Now that we have declared, universal resource located (referenced), and instantiated our AudioClip objects, and
created .playiSound() methods that will allow us to trigger each of these digital audio samples from “outside” of the
InvinciBagel.java class, we can go into the Bagel.java class, and write some code that allows us to trigger these audio
objects, to see how well the AudioClip class works. The best way to do this with our existing code is to use the event
handler code we are using to move our motion sprite object to also allow us to trigger one of these sounds for each
of the KeyEvents that we have set up currently for our game. This is why I named these files with the keys that they
will be triggered by. The first thing that we need to put into place in the Bagel.java class, similar to what we did in the
InvinciBagel class, is a method call to a playAudioClip() method inside of the .update() method that references an
empty private void playAudioClip() method. This method call and empty method body can be seen in Figure 15-19.
Figure 15-19. Create an empty .playAudioClip() method in the Bagel.java class and add a call to it inside of .update()
Inside of the playAudioClip() method body, we need to create conditional if() structures, similar to what we did
for the sprite movement that we created in Chapter 12. We’ll match KeyEvent handling (left, right, up, down, w, s) to
audio files that speak each of the keys (AudioClip objects iSound0 through iSound5) via an invinciBagel.playiSound()
object reference and method call inside of the conditional if() statements, seen in Figure 15-20, using this Java code:
private void playAudioClip() {
if(invinciBagel.isLeft()) { invinciBagel.playiSound0(); }
if(invinciBagel.isRight()) { invinciBagel.playiSound1(); }
if(invinciBagel.isUp()) { invinciBagel.playiSound2(); }
if(invinciBagel.isDown()) { invinciBagel.playiSound3(); }
if(invinciBagel.iswKey()) { invinciBagel.playiSound4(); }
if(invinciBagel.issKey()) { invinciBagel.playiSound5(); }
}
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