[JAVA][Beginning Java 8 Games Development]

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Chapter 2 ■ Setting Up Your Java 8 IDE: An Introduction to NetBeans 8.0 The NetBeans Profiler is something that you learn how to use over time, first through experimentation and then, as you become familiar with what Profiler can do, by using it with your own projects as they become increasingly complex and observing what your code base does regarding threads, CPU usage, and memory allocation and usage. NetBeans Profiler is a powerful and useful tool of this that is going to serve as the code development foundation for your Java 8 game development. I included it in this chapter to give you a solid overview, as this knowledge base will help you leverage the software, using it to its fullest potential and capabilities. Clearly, this is an advanced IDE and software development tool that cannot be covered in one short chapter (maybe in a book; however, this is not a NetBeans 8.0 games development title), so you will be learning more about what NetBeans 8.0 can do for you in just about all the chapters in this book, as NetBeans 8.0 and Java 8 (and JavaFX 8) are inexorably intertwined. Summary In this second chapter, you learned about NetBeans IDE 8.0, which will serve as the foundation and primary tool for your Java 8 game development work process. This IDE is where your Java 8 (and JavaFX 8) code is written, compiled, run, tested, and debugged as well as where your new media (image, audio, video, 3D, font, shape, and so on) assets are stored and referenced, using your NetBeansProject folder and its subfolders. You started by taking a look at NetBeans 8.0 and the high-level features that make it the official IDE for Java 8 and that help programmers develop code quickly, efficiently, and effectively (i.e., make code that is bug free) the first time. After this overview, you created your Java 8 game project, using as a model a real-world game project that I am working on for a major client. You went through the New Java Application series of dialogs and created a JavaFX framework for your game, which will allow you to use new media assets, such as images, audio, video, and 3D. Then, you explored how to compile and run an application, using NetBeans 8.0. You also studied the Output tab and how that is used for compiler output, runtime output, and profiling output, which you considered next. You examined both CPU profiling and memory profiling in NetBeans 8.0; learned how to set up and start up the Profile Project tool; and studied some of the output, statistics, and visual reports that the NetBeans Profiler can create for you, based on your Java 8 game project. In the next chapter, I will present an overview of the Java 8 programming language to make sure that you are up to speed on how Java 8 works; a Java primer chapter, if you will. www.it-ebooks.info 41
Chapter 3 A Java 8 Primer: An Introduction to Java 8 Concepts and Principles Let’s build on the knowledge you gained about NetBeans IDE 8.0 in the previous chapter by exploring the basic concepts and principles behind the Java 8 programming language. Java JDK 8 will be the foundation for your Java 8 games, as well as for your NetBeans IDE 8.0, so it is important that you take the time to study this chapter, a Java 8 “primer” that gives you an overview of this internationally popular computer (and device) programming language. You will of course learn about more advanced concepts, such as Lambda Expressions, and about other Java 8 components, such as the recent JavaFX multimedia engine, as you progress through the book, so be aware that this chapter will cover the most foundational Java programming language concepts, techniques, and principles, spanning the three major versions of Java SE currently in widespread use today, on computers, iTVs, and handheld devices. These versions of Java, used by billions of users, include Java 6, which is used in the 32-bit Android 4.x OS and applications; Java 7, which is used in the 64-bit Android 5.x OS and applications; and Java 8, which is used across many popular OSs, such as Microsoft Windows, Apple OS X, Oracle Solaris, and a plethora of popular Linux “distros,” or distributions (custom Linux OS versions, such as SUSE, Ubuntu, Mint, Mandrake, Fedora, and Debian). You will start with the easiest concepts, the highest level of Java, and progress to the more difficult ones, the guts of the Java programming constructs. You will begin, with a study of Java syntax, or lingo, including what Java keywords are, how Java delimits its programming constructs, and how to comment your code. Examining this first will give you a head start at being able to read Java code, as it is important to be able to discern the Java code from the commentary regarding that code (which is usually written by the author of the Java code using comments). Then, you will consider the top-level concept of APIs, as well as what a package is, and how you can import and use the preexisting code that is provided by Java packages. These Java packages are a part of the Java 8 API, and it is important to note that you can create custom Java packages of your own, containing your games or applications. After that, you will consider the constructs that are held inside of these Java packages, which are called Java classes. Java classes are the foundation of Java programming, and can be used to build your applications (in this case, your Java 8 games). You will learn about the methods, variables, and constants that these classes contain, as well as what superclasses and subclasses are, and what nested classes and inner classes are, and how to utilize them. Finally, you will discover what Java objects are, and learn how they form the foundation of Object Oriented Programming (OOP). You will also come to know what a constructor method is, and how it creates the Java object, by using a special kind of method called a constructor method that has the same name as the class that it is contained in. Let’s get started—we have a lot of ground to cover! The Syntax of Java: Comments and Code Delimiters There are a couple of things regarding syntax, meaning how Java writes things in its programming language, that you need to consider right off of the bat. These primary syntax rules are there to allow the Java compiler to understand how you are structuring your Java code. Java compilation is the part of the Java programming process, in which the www.it-ebooks.info 43
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Page 4 and 5: Contents at a Glance About the Auth
Page 6 and 7: Introduction The Java Programming L
Page 8 and 9: ■ Introduction In Chapter 13 you
Page 10 and 11: Chapter 1 ■ Setting Up a Java 8 G
Page 26 and 27: Chapter 2 Setting Up Your Java 8 ID
Page 28 and 29: Chapter 2 ■ Setting Up Your Java
Page 40 and 41: Profiling Your Java 8 Game Applicat
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Page 82 and 83: Chapter 4 ■ An Introduction to Ja
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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 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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