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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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Toc

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

The Bob (player's) class

This is the final class for this project. As a reminder, we need to make Bob teleport every time the player touches the screen and he should teleport to the location of the touch. I predict that a teleport method is quite likely. As we code this class, we will also see how to use a .png file to represent Bob instead of just using boring rectangles like we have done so far.

The first thing we will do is add the graphics (bob.png) file to the project.

Adding the Bob graphic to the project

Right-click and select Copy to copy the bob.png graphics file from the download bundle in the Chapter 13/drawable folder.

In Android Studio locate the app/res/drawable folder in the project explorer window. The following screenshot makes it clear where this folder can be located

Adding the Bob graphic to the project

Right-click on the drawable folder and select Paste to add the bob.png file to the project. Click OK twice to confirm the default options for importing the file into the project.

Coding the Bob class

In order...

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