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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 five exciting games

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Product type Paperback
Published in Mar 2021
Publisher Packt
ISBN-13 9781800565869
Length 686 pages
Edition 3rd Edition
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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 (24) Chapters Close

Preface 1. Chapter 1: Java, Android, and Game Development 2. Chapter 2: Java – First Contact FREE CHAPTER 3. Chapter 3: Variables, Operators, and Expressions 4. Chapter 4: Structuring Code with Java Methods 5. Chapter 5: The Android Canvas Class – Drawing to the Screen 6. Chapter 6: Repeating Blocks of Code with Loops 7. Chapter 7: Making Decisions with Java If, Else, and Switch 8. Chapter 8: Object-Oriented Programming 9. Chapter 9: The Game Engine, Threads, and the Game Loop 10. Chapter 10: Coding the Bat and Ball 11. Chapter 11: Collisions, Sound Effects, and Supporting Different Versions of Android 12. Chapter 12: Handling Lots of Data with Arrays 13. Chapter 13: Bitmap Graphics and Measuring Time 14. Chapter 14: Java Collections, the Stack, the Heap, and the Garbage Collector 15. Chapter 15: Android Localization – Hola! 16. Chapter 16: Collections and Enumerations 17. Chapter 17: Manipulating Bitmaps and Coding the Snake Class 18. Chapter 18: Introduction to Design Patterns and Much More! 19. Chapter 19: Listening with the Observer Pattern, Multitouch, and Building a Particle System 20. Chapter 20: More Patterns, a Scrolling Background, and Building the Player's Ship 21. Chapter 21: Completing the Scrolling Shooter Game 22. Chapter 22: What Next? 23. Other Books You May Enjoy

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 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, as we have done so far.

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

Add the Bob graphic to the project

Right-click and select Copy to copy the bob.png graphics file on the GitHub repo 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:

Figure 13.1 – Locating the drawable folder

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

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