[JAVA][Beginning Java 8 Games Development]

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Chapter 4 ■ An Introduction to JavaFX 8: Exploring the Capabilities of the Java 8 Multimedia Engine Figure 4-6. Call the .setFill() method with the Color.TRANSPARENT constant, off the Scene object named scene Run the application again, to see if the transparency is showing yet. As you can see in Figure 4-7, it is not! 92 www.it-ebooks.info
Chapter 4 ■ An Introduction to JavaFX 8: Exploring the Capabilities of the Java 8 Multimedia Engine Figure 4-7. Run the project to look at the transparent Stage object; something is still set to White Because you are using a StackPane object to implement layers in the InvinciBagel application, this is the next level up that you need to try to set a transparency value for. Evidently, JavaFX uses a Color.WHITE default background color value for all its objects. If I were on the JavaFX design team, I would be arguing for this to be changed to the Color.TRANSPARENT constant, but, of course, this might confuse new users, as alpha channel and compositing layers are advanced concepts. The javafx.scene.layout.StackPane class is subclassed from the javafx.scene.layout.Region class, which has a .setBackground() method for setting the Background (class or object) value. Again, a TRANSPARENT value constant must be available, as you always need to set background values as transparent, especially for Java 8 game design. Interestingly, things are not always as straightforward and consistent as you would want them to be in Java programming, as, to achieve exactly the same end result (installing a transparent background color/image plate for the design element), you have used thus far three different method calls, passing three custom object types: .initStyle(StageStyle object), .setFill(Color object), and .setBackground(Background object). www.it-ebooks.info 93
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Contents at a Glance About the Auth
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Introduction The Java Programming L
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■ Introduction In Chapter 13 you
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Chapter 1 ■ Setting Up a Java 8 G
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Chapter 2 Setting Up Your Java 8 ID
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Chapter 2 ■ Setting Up Your Java
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Profiling Your Java 8 Game Applicat
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Page 48 and 49: Chapter 2 ■ Setting Up Your Java
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Chapter 6 ■ The Foundation of Gam
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Chapter 7 The Foundation of Game Pl
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Chapter 8 Creating Your Actor Engin
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Chapter 8 ■ Creating Your Actor E
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Chapter 9 Controlling Your Action F
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Chapter 9 ■ Controlling Your Acti
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Chapter 10 Directing the Cast of Ac
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Chapter 10 ■ Directing the Cast o
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Chapter 11 ■ Moving Your Action F
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Chapter 12 Setting Boundaries for Y
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Chapter 12 ■ Setting Boundaries f
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Chapter 13 ■ Animating Your Actio
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Chapter 14 ■ Setting Up the Game
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Chapter 15 Implementing Game Audio
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Chapter 15 ■ Implementing Game Au
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Chapter 16 ■ Collision Detection:
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Chapter 17 Enhancing Game Play: Cre
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Chapter 17 ■ Enhancing Game Play:
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■ index Background image (cont.)
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■ index InvinciBagel animation (c
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■ index Modifier keywords access
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Beginning Java 8 Games Development
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This Java 8 Game Development book i
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■ Contents NetBeans 8.0 Is User I
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■ Contents ■■Chapter 5: An In
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■ Contents Creating a Hero Superc
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■ Contents Organizing the .update
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■ Contents Optimizing the Scene G
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About the Author Wallace Jackson ha
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Acknowledgments I would like to ack
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