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Learning Java by Building Android  Games

You're reading from   Learning Java by Building Android Games Learn Java and Android from scratch by building six exciting games

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Product type Paperback
Published in Aug 2018
Publisher
ISBN-13 9781788839150
Length 774 pages
Edition 2nd Edition
Languages
Tools
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Author (1):
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John Horton John Horton
Author Profile Icon John Horton
John Horton
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Table of Contents (28) Chapters Close

Preface 1. Java, Android and Game Development FREE CHAPTER 2. Java: First Contact 3. Variables, Operators and Expressions 4. Structuring Code with Java Methods 5. The Android Canvas Class – Drawing to the Screen 6. Repeating Blocks of Code with Loops 7. Making Decisions with Java If, Else and Switch 8. Object-Oriented Programming 9. The Game Engine, Threads, and The Game Loop 10. Coding the Bat and Ball 11. Collisions, Sound Effects and Supporting Different Versions of Android 12. Handling Lots of Data with Arrays 13. Bitmap Graphics and Measuring Time 14. The Stack, the Heap, and the Garbage Collector 15. Android Localization -Hola! 16. Collections, Generics and Enumerations 17. Manipulating Bitmaps and Coding the Snake class 18. Introduction to Design Patterns and much more! 19. Listening with the Observer Pattern, Multitouch and Building a Particle System 20. More Patterns, a Scrolling Background and Building the Player's ship 21. Completing the Scrolling Shooter Game 22. Exploring More Patterns and Planning the Platformer Project 23. The Singleton Pattern, Java HashMap, Storing Bitmaps Efficiently and Designing Levels 24. Sprite-sheet animations, Controllable Player and Parallax Scrolling Backgrounds 25. Intelligent Platforms and Advanced Collision Detection 26. What next? Index

Chapter 10. Coding the Bat and Ball

As we have done so much theory and preparation work in the previous two chapters we can quickly make some progress on this one. We already have our bare-bones game engine coded and ready to update, draw and track time down to the nearest millisecond.

Now we can add code to the Bat and the Ball classes. By the end of the chapter, we will have a moving ball and a player-moveable bat. Although we will need to wait until the next chapter before the ball bounces off the walls and the bat, we will also code the necessary methods in the Ball class so that this last step will be very easy to achieve.

In this chapter we are going to:

  • Code the Ball class
  • Implement an instance of Ball in the game engine
  • Code the Bat class
  • Implement a Bat instance in the game engine
  • Add movement controls to the Bat

Let's start by adding our first object to the game to bring a ball to life.

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