[JAVA][Beginning Java 8 Games Development]

Chapter 17 ■ Enhancing Game Play: Creating a Scoring Engine, Adding Treasure and an Enemy Auto-Attack Engine
While we are adding game design elements to the game, let’s go ahead and learn how to use a splashscreen
ImageView Node object to implement a game background image plate. We will do this so that our white iBeagle, and
(Cream) iCheese and iBullet objects, stand out to the game player better, using an enhanced blue background color.
Adding a Background Image: Using .toBack( ) Method
Before we get into coding the collision and scoring routines for the Enemy and Projectile objects, let’s add an Image
asset (object) to use in the background plate, while we are in the process of adding objects to our game. Copy the
skycloud.png 8-bit PNG8 image asset, seen in the bottom-left corner of Figure 17-24, from the book repository into
the NetBeansProjects/InvinciBagel/src folder. After you do this, add a skyCloud Image object declaration to the end of
the private Image object declarations for the splashscreen related image assets, as seen at the top of Figure 17-24. As
you can see, there will be a warning highlight under this object until you implement (use) it in your Java code. Next,
instantiate a skyCloud object in .loadImageAssets(), as seen at the bottom of Figure 17-24, using the following code:
private Image splashScreen, instructionLayer, legalLayer, scoresLayer, skyCloud;
skyCloud = new Image("/skycloud.png", 640, 400, true, false, true);
Figure 17-24. Declare and instantiate a skyCloud Image object that references a skycloud.png background image asset
Now you have a skyCloud object, so use a .setImage() method to set a SplashScreenBackground ImageView
Node, to use this image asset inside the gameButton.setOnAction(ActionEvent) code block, so that when you click the
PLAY GAME Button, this image is set as the backplate image. Also, make sure to use the .setVisible() method call with
a value of true, so that the ImageView Node will be visible. The Java code, shown in Figure 17-25, should look like this:
splashScreenBackground.setImage(skyCloud);
splashScreenBackground.setVisible(true);
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