mario zechner - beginning android games

Mario Zechner

Beginning

Android Games

Get started with game apps development for the Android platform

Apress

Android

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2013

Android

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32.973.2-018.2 004.451

78 A n d r o i d . .: , 2 0 1 3 . 6 8 8 .: .

ISBN 978-5-459-01554-6

, Android. , . , Android. Android. , Android, - . Android, ( , ), . , , , .

ISBN 978-1430230427 . 2011 by Mario Zechner. All rights reservedISBN 978-5-459-01554-6 , 2013

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1. Android: ....................................................... 22

2. Android S D K ....................................................... 42

3. 1 0 1 ....................................................................67

4. Android ...............................................116

5. Android Game Development Framework.................................... 199

6. Android...............................................246

7. OpenGL ES: .......................................... 288

8. 2 D -n rp .................................................375

9. : , OpenGL E S ...................................................................... 458

10. OpenGL ES: 3 D ....................................................... 522

11. 3D -n rp ...............................................563

12. Droid Invaders: .............................................622

13. ..............................................................673

14. ?.............................................................................684

........................................................................................................... 16 ........................................................................................ 16 ................................................................................ 16 .......................................................................... 17

........................................................................................................... 18

.......................................................................... 19

................................................................................................ 20

............................................................................................ 21

1. Android: ......................................................... 22 Android................................................................................23.................................................................................................... 24 Google.................................................................................................... 24

Android Open Source Project............................................................... 25Android Market.................................................................................... 25, Google I/O.................... 26

Android............................................................... 26.................................................................................................. 28 Da lv ik............................................................... 28 ......................................................................28 ......................................................................29

Software Development K it................................................................................30 ............................................................................31, , ! ............................................................. 32

..................................................................32 , , .......... 33

......................................................... 37 ................................................... 38 ..................................................................................39

..............................................................................39 , ............................................... 40

.................................................................................................. 41

2. Android S D K ........................................................... 42 ..........................................................................42

JDK....................................................................................43 Android SDK........................................................................43 Eclipse................................................................................44 ADT Eclipse..................................................... 45 Eclipse............................................................. 47

Hello World Android............................................................................49 ..............................................................................49 ........................................................................50 ............................................................. 51

Android........................................................... 54 ....................................................................54 Android.......................................55 ............................................................................56 ..........................................................................59LogCat DDMS.................................................................................... 62 ADB............................................................................64

.................................................................................................. 65

3. 1 0 1 ..........................................................................67: ..................................................................................68

................................................................................68...................................................................................... 70 ....................................................................71 ................................................................................73- ................................................................................74

: ........................................................... 75 ....................................................................76 ........................................................................78 ..................................................................78

: ...................................................................................... 83 ................................................... 84.................................................................................................. 84 -........................................................................88

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.....................................................................................................89...............................................................................................93 ..................................................................................... 107

................................................................................................... 115

4. Android ...................................................... 116 Android: ......................................116

.............................................................................118 .........................................................................118 ...............................................................................120 .................................................................122 .......................................................................123 ...........................................................................125 Android 10 ....................125 .................................................... 127

Android API......................................................................................... 128 .............................................................. 129 .............................................................. 133 ................................................................ 140 ............................................................ 157 .................................................................................163 ...............................................................................168 .................................................... 172

............................................................................................. 197 ................................................................................................... 198

5. Android Game Development Fram ework..........................................199 ..................................................................................................... 199 AndroidFilelO.........................................................................................200AndroidAudio, AndroidSound Android Music !............................. 201Androidlnput AccelerometerHandler................................................................ 207

AccelerometerHandler: ?...................................................... 207 Pool: !...................................................... 209KeyboardHandler: , , , , , ................... 211 ........................................................................ 216Androidlnput: ..................................................223

AndroidGraphics AndroidPixmap: ............................................226 ....................... 226AndroidPixmap: ..................................................232

9

AndroidGraphics: , ....................................233AndroidFastRenderView: -, -........... 237

AndroidGame: .................................................................... 240 ................................................................................................... 245

6. Andro id .................................................... 246 ......................................................................................... 246 ......................................................................................... 248MrNomGame: .................................................................249

: .............................................. 249:

.......................................................................251LoadingScreen: ................................253

................................................................................................. 255() HelpScreen....................................................................................... 258 ............................................................................................... 260

: .................................................... 261 .............................................................................263

..............................................................................................266 : , , ........ 266 GameScreen...............................................................................279

................................................................................................... 287

7. OpenGL ES: ................................................ 288 OpenGL ES ................................288

: ............................................................ 289............................................................................................. 291 . . . .293............................................................................................. 294 .......................................................................295

................................................................................................. 296GLSurfaceView: 2008 .................................................. 297GLGame: .................................................... 300, : !..........................................308

........................................................ 309 ........................................................ 309 .............................................................. 313 ........................................................................................... 317

...........................................................................321

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: ..............................325

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...................................................... 327

............................................................................. 329 ................................................................................. 330

.....................................................................330 .................................................................331

........................................................................................... 331

Texture....................................................................................... 334

: .......................................... 336

........................................................................................... 338

Vertices..................................................................................... 340

-: ...................................................... 343

: , , ...................................... 347

20-: ..............................349 ...............................................................349

................................................................................... 351 ........................................ 352

.......................................................................357

...................................................................361

.................................................................361

Android 1 .5 .......................................... 363

OpenGL ES- ?................................363

............................................ 365

........... 367

OpenGL ES/JNI....................368 ...........................................................369 ..................................................................................... 372

....................................................................................................373

8. 2D -n rp .........................................................375

..................................................................................................375 ....................................................................................... 376

............................................................................. 377

.......................................................................379

Vector.....................................................................381

...........................................................385

20-......................................................................................... 390 ........................................................ 390 ....................................................................................... 392 .............................................................. 392 .................................................................393

2 D ..........................398 ...................................................................398 ...................................................... 401 ................................................................ 404 ............................405 .........................................................................412

2 D ................................................................................................... 426 Camera2D...................................................................................430............................................................................................... 431 : ................................................ 433

, : OpenGL ES..........................439 TextureRegion.............................................................................440 SpriteBatcher.............................................................................441 SpriteBatcher.......................................................... 447

-........................................................................................... 451 Animation...................................................................................452............................................................................................... 453

................................................................................................... 457

9. : , OpenGL E S ...............................................................................458 ...........................................................................458 .......................................................................................460 ......................................................................................... 460 ...........................................................................462 ......................................................................................... 465

.......................................... 465 ..............................467 ...................................................................................470 ........................................................ 472 ..................................................................................... 473

.....................................................................473 Assets......................................................................................... 473 Settings..................................................................................... 477

1 1

12

........................................................................... 478 Font........................................................................................... 479 G L ..............................................................................................481 ........................................................................... 482 ................................................................................... 485 ...................................................................488 .........................................................491 ..................................................................................... 508 WorldRenderer........................................................................... 516

?.......................................................520 ....................................................................................................521

10. OpenGL ES: 3 D ...............................................................522 ..................................................................................................522 3D..................................................................................................523

Vertices3: -...................................................523................................................................................................526

: , .......................................................529Z-: ............................................................................. 532

...........................................................533

: ...........................................................535 z- z-.............................................................538

30-................................................................................... 540: Hello World 3D ........................................................................... 540................................................................................................543

................................................................... 547 ................................................................................... 547

........................................ 550 ....................................................................... 557

....................................................................................................562

11. - .......................................................563 ..................................................................................................563 3 D ..................................................................................................564 OpenGL E S ................................................................................. 569

..................................................................... 569 ......................................................................... 571..........................................................................................572

OpenGL ES : ................. 573 ......................................................................................... 574 OpenGL E S ...............................589

Mip-....................................................................................... 590 ............................................................................................. 595

( )............................595 .................................................. 599 .........................................................605

........................................................................................... 607 Wavefront O BJ.........................................................................608 OBJ...................................... 609 OBJ Loader...................................................... 614 ........................................ 615

3 D ..................................................................................... 615 3 D ..........................616

3D............................................................617 ....................................617 GameObject3D DynamicGameObject3D..................................619

................................................................................................... 620

12. Droid Invaders: ................................................... 622 ...............................................................................622 ............................................................ 624 ......................................................................................... 624 ...........................................................................626 ......................................................................................... 627

.............................................. 627 ................................................................................. 629 ..................................................................................... 631

............................................................................................. 631 Assets....................................................................................................631 Settings..................................................................................................635 ....................................................................................... 636 ..................................................................................... 637 ............................................................................................... 640 ............................................................................................. 643

Shield......................................................................................... 644 Shot........................................................................................... 644

13

14

Ship........................................................................................... 645 Invader.......................................................................................647 World......................................................................................... 651

GameScreen...........................................................................................657 World Renderer.......................................................................................665................................................................................................... 671 ................................................................................................... 672

13. .................................................................... 673 ...................................................................... 673 ............................................674 - .............................................................. 675 Android Market................................................................ 679

...............................................................................680 ...............................................................................680 .........................................................................681!......................................................................................... 681...........................................................................................682

.....................................................................................682 ................................................................................................... 683

14. ?.....................................................................................684 ...............................................................................684 ........................................................................ 684 .................................................... 685OpenGL ES 2.0 .....................................................................................685 .....................................................................................685 .................................................................................687 .......................................................................................687

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Package Description St License

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W o r k s p a c e L a u n c h e r S e l e c t a w o r k s p a c e

E c lip se stores your projects in a folder ca lled a w orkspace.

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50 2. Android SDK

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2.1. HelloWorldActivity.java package com.helloworld;

import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.Button;

public class HelloWorldActivity extends Activity

implements View.OnClickListener {Button button; int touchCount;

@0verridepublic void onCreate(Bundle savedlnstanceState) {

super.onCreate(savedlnstanceState); button = new Button(this); button.setText( "Touch me!" ); button.setOnCli ckLi stener(this); setContentView(button);

}

public void onClick(View v) { touchCount++;button.setText("Touched me " + touchCount + " time(s)");

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package com.helloworld;

import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.Button;

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Button button;int touchCount;

Act i v i ty Act i v i ty. onCreate(), . , . onCreate () :

@0verridepublic void onCreate(Bundle savedlnstanceState) {

super.onCreate(savedlnstanceState);

Button . Button , API Android. , Android. Hell oWorl dActi v i ty. :

button = new Button(this); button.setText( "Touch me!" );

onCreate () OnCl i ckLi stener Button. OnCl ickListener , OnCl i ckLi stener. onCl i ck (), . , Hel 1 oWorl dActi vi ty OnCl i ckLi stener Button:

button.setOnCli ckLi stener(this);

onCreateO Button . , . Button , .

54 2. Android SDK

, .

setContentView(button);}

OnClickListener.onCl i ck(), , Acti vity. , . touchCount .

public void onClick(View v) { touchCount++;button.setText("Touched me" + touchCount + "times");

}

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Android 55

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Select a device compatible with target Android 1.5.

() Choose a running Android device

Serial Number A V D Nam e Target D ebug State

^ emulator-5554 android! .5 v Android 1.5 Y e s Online

H T97JL901589 N/A 1.5 Online H T 0103703 N/A 2.2.1 Online

Launch a new Android Virtual D eviceA V D Name Target Name Platform API Level I Details...

android2.2 Android 2.2 2.2 8I Start...

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Android 59

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androi d : debuggable="true"

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60 2. Android SDK

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Eclipse, , , . Debug () Run ().

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Android 61

Debug () , Java.

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62 2. Android SDK

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64 2. Android SDK

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65

, ADB, ADB- ( , ) . ( : > ):

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:

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> adb -s 019803783 in sta ll myapp.apk

-s ADB, - .

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> adb -s 019803783 push m yfile.tx t /sdcard/m yfile.txt

myfi 1 . tx t , :

> abd pull /sdcard/m yfile.txt m yfile.txt

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66 2. Android SDK

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: 69

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. 3.2. Antigen Battery Powered Games

320 240.

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70 3. 101

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: 71

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72 3. 101

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: 73

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74 3. 101

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: 75

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80 3. 101

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3.1. Input KeyEvent TouchEvent package .badlogi .androi dgames.framework;

import java.util.List;

public interface Input {public static class KeyEvent {

public static final int KEY_D0WN = 0; public static final int KEY_UP = 1;

public int type; public int keyCode; public char keyChar;

}

public static class TouchEvent {

: 87

public static final int T0UCH_D0MN = 0;public static final int TOUCH_UP = 1;public static final int TOUCH_DRAGGED = 2;

public int type; public int x, y; public int pointer;

}

public boolean isKeyPressedCint keyCode);

public boolean isTouchDown(int pointer);

public int getTouchXCint pointer);

public int getTouchYCint pointer);

public float getAccelXO:

public float getAccelYO:

public float getAccelZO:

public List getKeyEventsO:

public List getTouchEventsO;}

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TouchEvent TouchEvent, , ID , . I D , . ID, 0, 1 . . 0 , ID 1 , . , 0.

Input, . Input.isKeyPressedO keyCode . Input.isTouchDownO, Input.getTouchXO Input.getTouchYO , .- /-. , .

88 3. 101

Input.getAccelX(), Input.getAccelYO Input.getAccelZO .

. KeyEvent TouchEvent, , . .

, . .

------------------------------------------------------------------------------------------------------------------- , : -, Dalvik ( ); -, . , , .

- . , Java, InputStream OutputStream Java- . (, , ). , , , , . , , 3.2.

3.2. FilelOpackage .badlogi .androi dgames.framework;

import java.io.IOException; import java.io.InputStream; import java.io.OutputStream;

public in te rface FilelO {public InputStream readAsset(String fileName) throws IOException;

public InputStream readFi1e(String fileName) throws IOException;

public OutputStream w riteFile(String fileName) throws IOException;}

. . , Java

: 89

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90 3. 101

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92 3. 101

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, . : ; ; .

Audi , Mus i Sound ( 3.3-3.5 ).

3.3. Audiopackage com.badlogi .androi dgames.framework :

public in te rface Audio {public Music newMusi (String filename):

public Sound newSound(String filename):}

Audio Music Sound. Mus i , Sound , . Audi . newMusi () Audi . newSound ( ) IOException (, ). , .

3.4. Musicpackage com.badlogi .androi dgames.framework :

public in terface Music {publ ic void playO :

publ ic void stopO :

publ ic void pauseO :

publ ic void setLooping(boolean looping)

publ ic void setVolume(float volume):

publ ic boolean isPlayingO :

publ ic boolean isStoppedO:

publ ic boolean isLoopingO :

pub lic void disposeO :

: 93

Music . , , ( ). , oat 0 () 1 (). , Music. Music , , .

3.5. Soundpackage com.badlogi .androi dgames.framework;

public in te rface Sound {public void pi ay ( f l oat volume);

public void disposeO ;}

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94 3. 101

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( 1: 1) (2 ; 1)

color[] vram = new color[3*2];

vram[0] vram[1] vram[2] vram[3] vram[4] vram[5]

(0 ;0) (1,0) (2;0) (0 :1) (1:1) (2:1)

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: 95

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in t address = + * rasterWidth;

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in t = address % rasterWi dth: in t = address / rasterWidth;

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96 3. 101

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