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Learning Java by Building Android Games - Third Edition

You're reading from  Learning Java by Building Android Games - Third Edition

Product type Book
Published in Mar 2021
Publisher Packt
ISBN-13 9781800565869
Pages 686 pages
Edition 3rd Edition
Languages
Author (1):
John Horton John Horton
Profile icon John Horton

Table of Contents (24) Chapters

Preface 1. Chapter 1: Java, Android, and Game Development 2. Chapter 2: Java – First Contact 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

Coding the Snake class

Add the import statements and the member variables for the Snake class. Be sure to study the code. It will give some insight and understanding to the rest of the Snake class:

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.Point;
import android.view.MotionEvent;
import java.util.ArrayList;
class Snake {
    // The location in the grid of all the segments
    private ArrayList<Point> segmentLocations;
    // How big is each segment of the snake?
    private int mSegmentSize;
    // How big is the entire grid
    private Point mMoveRange;
    // Where is the center of the screen
    // horizontally in pixels?
   ...
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