[JAVA][Beginning Java 8 Games Development]

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Chapter 13 ■ Animating Your Action Figure States: Setting the Image States Based on KeyEvent Processing You may be wondering why I have not added this same extended condition to the else if(animator) portion of this programming structure. The reason is that this portion of the loop will never be executed unless the first part, which we are excluding with this new statement, is processed. This is because inside of the first part of this loop, we set animator=true; and this will never happen (now that we have added the extended condition) if the up or down key is being pressed. What is really cool about this is that the if(invinciBagel.isRight()) and if(invinciBagel.isLeft()) conditional if() structures can now be used to mirror all sprite cel state Image assets, when your player uses the left or right key to set the direction that the character is traveling in, and only when the left and right keys (only) are used to make the character run will the run-cycle part of this <strong>Java</strong> code processing take place. Make sure that you implement this same exact extended condition in your if(invinciBagel.isLeft()) part of the conditional if() structure, as is shown below, and which can be seen as well in Figure 13-13. if(invinciBagel.isLeft()) { spriteFrame.setScaleX(-1); if( !animator && ( !invinciBagel.isDown() && !invinciBagel.isUp() ) ) { spriteFrame.setImage(imageStates.get(1)); if(framecounter >= runningspeed) { animator=true; framecounter=0; } else { framecounter+=1; } } else if(animator) { spriteFrame.setImage(imageStates.get(2)); if(framecounter >= runningspeed) { animator=false; framecounter=0; } else { framecounter+=1; } } } 288 www.it-ebooks.info
Chapter 13 ■ Animating Your Action Figure States: Setting the Image States Based on KeyEvent Processing Figure 13-13. Add if() statement logic to exclude processing of nested if() hierarchy if down/up keys pressed to isRight() Next, let’s make the ASDW keys their own sprite control keys, instead of having them mimic the arrow keys. Adding Event Handling: Giving ASDW Keys Function Since I have a few more sprite states that I want to implement, I’m going to upgrade the event handler to use a twohanded play scenario, using arrow keys with ASDW, or ABCD (color) game controller buttons, using this code upgrade: scene.setOnKeyPressed(KeyEvent event) -> { switch (event.getCode()) { case UP: up = true; break; case DOWN: down = true; break; case LEFT: left = true; break; case RIGHT: right = true; break; case W: wKey = true; break; case S: sKey = true; break; case A: aKey = true; break; case D: dKey = true; break; } www.it-ebooks.info 289
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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 5 An Introduction to Game D
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Chapter 5 ■ An Introduction to Ga
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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 15 ■ Implementing Game Au
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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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