[JAVA][Beginning Java 8 Games Development]

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Chapter 14 ■ Setting Up the Game Environment: Creating Fixed Sprite Classes Using the Actor Superclass Figure 14-14. A completed PropH() constructor method creates a fixed PropH object flipped along the horizontal X axis Next, perform the same work process that you did for the PropH class and create a PropV class that sets the isFlipV property to true, and implements the spriteFrame.setScaleY(-1); method call, as shown in Figure 14-15. Figure 14-15. A completed PropV() constructor method creates a fixed PropV object flipped along the vertical Y axis 308 www.it-ebooks.info
Chapter 14 ■ Setting Up the Game Environment: Creating Fixed Sprite Classes Using the Actor Superclass Next, perform the same work process that you did for the PropV class, and create the PropB class. This class will set both the isFlipV and isFlipH properties to true, and implement a spriteFrame.setScaleX(-1); method call, as well as a spriteFrame.setScaleY(-1); method call. Your <strong>Java</strong> class structure for this last PropB class, which will mirror fixed prop imagery along both an X and Y axis, can be seen in Figure 14-16 and will look like the following code: public class PropB extends Actor { public PropB(String SVGdata, double xLocation, double yLocation, Image... spriteCels) { super(SVGdata, xLocation, yLocation, spriteCels); this.setIsFlipH(true); spriteFrame.setScaleX(-1); this.setIsFlipV(true); spriteFrame.setScaleY(-1); spriteFrame.setTranslateX(xLocation); spriteFrame.setTranslateY(yLocation); } } As you can see in Figure 14-16, the code is error-free, and you now have a PropB class, which will create fixed objects for your Scene that are flipped or mirrored around both the X and the Y axis at the same time! Having these four different fixed Prop classes will allow us to quickly and easily design Scene (and eventually, game levels) elements, without having to do anything but declare the correct prop class, and reference the correct Image asset and X,Y locus (location) and collision polygon SVG data. Figure 14-16. A completed PropB() constructor method creates a fixed PropB object flipped along both the X and Y axis Now we are ready to use these four new fixed sprite classes, and learn how to add Scene (Stage) elements. www.it-ebooks.info 309
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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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Chapter 3 ■ A Java 8 Primer: An I
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Chapter 4 ■ An Introduction to Ja
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Chapter 5 An Introduction to Game D
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Chapter 5 ■ An Introduction to Ga
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Chapter 6 The Foundation of Game De
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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 12 ■ Setting Boundaries f
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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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