Android game Screen class Testscreen and game class androidgame design

Android game Screen class Testscreen and game class androidgame design

1. Basic knowledge:

A. WakeLock

http://developer.android.com/reference/android/os/PowerManager.WakeLock.html
B. requestwindowfeature
http://developer.android.com/reference/android/app/Activity.html#requestWindowFeature (int)
C. GetWindow (). setflags
Http://developer.android.com/reference/android/app/Activity.html#getWindow()
http://developer.android.com/reference/android/view/Window.html#setFlags (int, int)
D. Getresources (). GetConfiguration ()
http://developer.android.com/reference/android/content/res/Configuration.html
E. Bitmap.createbitmap
http://developer.android.com/reference/android/graphics/Bitmap.html
F. Getwindowmanager (). Getdefaultdisplay ()
http://developer.android.com/reference/android/view/WindowManager.html
http://developer.android.com/reference/android/view/Display.html
G. powermanager.newwakelock
http://developer.android.com/reference/android/os/PowerManager.html#newWakeLock (int, java.lang.String)
H.bufferedreader
http://developer.android.com/reference/java/io/BufferedReader.html
I.bufferedwriter
http://developer.android.com/reference/java/io/BufferedWriter.html
J.thread
http://developer.android.com/reference/java/lang/Thread.html

2. Design screen interface screens and games interface game

Package Com.badlogic.androidgames.framework;public abstract class Screen {    protected final game game;    Public screen (game game) {        this.game = game;    }    public abstract void Update (float deltatime);    public abstract void Present (float deltatime);    public abstract void Pause ();    public abstract void Resume ();    public abstract void Dispose ();}

Package Com.badlogic.androidgames.framework;public interface Game {public    Input getinput ();    Public FileIO Getfileio ();    Public Graphics getgraphics ();    Public Audio Getaudio ();    public void Setscreen (screens screen);    Public screen Getcurrentscreen ();    Public screen Getstartscreen ();}

3. Implement screen class Testscreen and Game class Androidgame

Package Com.badlogic.androidgames.framework;import Java.io.bufferedreader;import Java.io.bufferedwriter;import Java.io.inputstreamreader;import Java.io.outputstreamwriter;import Java.util.list;import Android.graphics.Color; Import Android.util.log;import Com.badlogic.androidgames.framework.graphics.pixmapformat;import Com.badlogic.androidgames.framework.input.keyevent;import com.badlogic.androidgames.framework.Input.TouchEvent;    Class Testscreen extends Screen {long startTime = System.nanotime ();    int frames;    Pixmap Bob;    Pixmap Bobalpha;    Sound sound;            Music Music;            Public Testscreen (game game) {super (game);        Bob = Game.getgraphics (). Newpixmap ("Bobrgb888.png", pixmapformat.rgb565);        Bobalpha = Game.getgraphics (). Newpixmap ("Bobargb8888.png", pixmapformat.argb4444);        Music = Game.getaudio (). NewMusic ("Music.ogg");        Music.setlooping (TRUE);        Music.setvolume (0.5f);        Music.play (); Sound = Game.getaudio (). Newsound ("MUsic.ogg ");            try {BufferedReader in = new BufferedReader (New InputStreamReader (Game.getfileio (). Readasset ("Test.txt")));            String text = In.readline ();                        In.close ();            BufferedWriter out = new BufferedWriter (New OutputStreamWriter (Game.getfileio (). WriteFile ("test.txt"));            Out.write ("This is a freaking test");                        Out.close ();            in = new BufferedReader (New InputStreamReader (Game.getfileio (). ReadFile ("test.txt"));            String Text2 = In.readline ();                        In.close ();        LOG.D ("Mrnom", Text + "," + Text2);        } catch (Exception ex) {ex.printstacktrace ();  }} @Override public void update (float deltatime) {} @Override public void present (float deltatime)        {Graphics g = game.getgraphics ();        Input INP = Game.getinput ();        G.clear (color.red);        G.drawline (0,0,320, 480, Color.Blue); G.dRawrect (20,20,100,100, Color.green);        G.drawpixmap (Bob, 100, 100);        G.drawpixmap (Bobalpha, 100, 200);        G.drawpixmap (Bob, 200, 200, 0, 0, 64, 64); for (int i=0; i < 2; i++) {if (Inp.istouchdown (i)) {G.drawpixmap (Bob, Inp.gettouchx (i), INP.G            Ettouchy (i), 0, 0, 64, 64); }} g.drawpixmap (Bob, (int) (INP.GETACCELX () *) + 160-16, (int) (inp.getaccely () * 10) + 240-16                , 0, 0, 32, 32);        list<keyevent> keyevents = inp.getkeyevents ();        int len = Keyevents.size ();        for (int i = 0; i < len; i++) {log.d ("Mrnom", Keyevents.get (i). toString ());        } list<touchevent> touchevents = Inp.gettouchevents ();        Len = Touchevents.size ();            for (int i = 0; i < len; i++) {log.d ("Mrnom", Touchevents.get (i). toString ());        if (Touchevents.get (i). Type = = touchevent.touch_up) sound.play (1);             }   frames++; if (System.nanotime ()-startTime > 1000000000l) {log.d ("Mrnom", "fps:" + frames + ", Delta:" + deltatime)            ;            frames = 0;        StartTime = System.nanotime ();                    }} @Override public void Pause () {log.d ("mrnom", "pause");       } @Override public void Resume () {LOG.D ("Mrnom", "Resume");        } @Override public void Dispose () {log.d ("Mrnom", "Dispose");    Music.dispose (); }            }

 

Package Com.badlogic.androidgames.framework.impl;import Android.app.activity;import Android.content.Context; Import Android.content.res.configuration;import Android.graphics.bitmap;import android.graphics.Bitmap.Config; Import Android.os.bundle;import Android.os.powermanager;import Android.os.powermanager.wakelock;import Android.view.window;import Android.view.windowmanager;import Com.badlogic.androidgames.framework.audio;import Com.badlogic.androidgames.framework.fileio;import Com.badlogic.androidgames.framework.game;import Com.badlogic.androidgames.framework.graphics;import Com.badlogic.androidgames.framework.input;import Com.badlogic.androidgames.framework.screen;public abstract class Androidgame extends Activity implements Game {Android    Fastrenderview Renderview;    Graphics graphics;    Audio audio;    input input;    FileIO FileIO;    Screen screen;    WakeLock WakeLock; @Override public void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);       Requestwindowfeature (Window.feature_no_title); GetWindow (). SetFlags (WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN        );        Boolean islandscape = Getresources (). GetConfiguration (). Orientation = = Configuration.orientation_landscape; int framebufferwidth = Islandscape?        480:320; int framebufferheight = Islandscape?        320:480;                Bitmap FrameBuffer = Bitmap.createbitmap (Framebufferwidth, Framebufferheight, config.rgb_565);        float ScaleX = (float) framebufferwidth/getwindowmanager (). Getdefaultdisplay (). GetWidth ();        float ScaleY = (float) framebufferheight/getwindowmanager (). Getdefaultdisplay (). GetHeight ();        Renderview = new Androidfastrenderview (this, frameBuffer);        Graphics = new Androidgraphics (Getassets (), frameBuffer);        FileIO = new Androidfileio (Getassets ());        Audio = new Androidaudio (this); Input= New Androidinput (this, Renderview, ScaleX, ScaleY);        Screen = Getstartscreen ();                Setcontentview (Renderview);        PowerManager PowerManager = (powermanager) getsystemservice (Context.power_service);    WakeLock = Powermanager.newwakelock (Powermanager.full_wake_lock, "glgame");        } @Override public void Onresume () {super.onresume ();        Wakelock.acquire ();        Screen.resume ();    Renderview.resume ();        } @Override public void OnPause () {super.onpause ();        Wakelock.release ();        Renderview.pause ();        Screen.pause ();    if (isfinishing ()) screen.dispose ();    } @Override Public Input getinput () {return input;    } @Override Public FileIO Getfileio () {return FileIO;    } @Override Public Graphics Getgraphics () {return graphics;    } @Override Public Audio Getaudio () {return audio; } @Override public void Setscreen (screens screen) {       if (screen = null) throw new IllegalArgumentException ("screen must not is null");        This.screen.pause ();        This.screen.dispose ();        Screen.resume ();        Screen.update (0);    This.screen = screen;    Getcurrentscreen () {return screen; }}

4. The game class Androidgame used to quickly redraw the view class Androidfastrenderview

Package Com.badlogic.androidgames.framework.impl;import Android.graphics.bitmap;import Android.graphics.Canvas; Import Android.graphics.rect;import Android.view.surfaceholder;import Android.view.surfaceview;public class    Androidfastrenderview extends Surfaceview implements Runnable {Androidgame game;    Bitmap framebuffer;    Thread renderthread = null;    Surfaceholder Holder;        Volatile Boolean running = false;        Public Androidfastrenderview (androidgame game, Bitmap framebuffer) {super (game);        This.game = game;        This.framebuffer = framebuffer;    This.holder = Getholder ();        } public void Resume () {running = true;        Renderthread = new Thread (this);             Renderthread.start ();        public void Run () {rect dstrect = new Rect ();        Long startTime = System.nanotime ();                                   while (running) {if (!holder.getsurface (). IsValid ()) continue; Float DEltatime = (System.nanotime ()-starttime)/1000000000.0f;            StartTime = System.nanotime ();            Game.getcurrentscreen (). Update (deltatime);                        Game.getcurrentscreen (). Present (Deltatime);            Canvas canvas = Holder.lockcanvas ();            Canvas.getclipbounds (dstrect);                                       Canvas.drawbitmap (framebuffer, NULL, dstrect, NULL);        Holder.unlockcanvasandpost (canvas);                                }} public void Pause () {running = false;                while (true) {try {renderthread.join ();            Break } catch (Interruptedexception e) {//Retry}}}}

5. Another game class glgame based on OpenGL ES (the previous game class Androidgame is based on the general Graphics graphics)

Package Com.badlogic.androidgames.framework.impl;import Javax.microedition.khronos.egl.eglconfig;import Javax.microedition.khronos.opengles.gl10;import Android.app.activity;import Android.content.context;import Android.opengl.glsurfaceview;import Android.opengl.glsurfaceview.renderer;import Android.os.Bundle;import Android.os.powermanager;import Android.os.powermanager.wakelock;import Android.view.window;import Android.view.windowmanager;import Com.badlogic.androidgames.framework.audio;import Com.badlogic.androidgames.framework.fileio;import Com.badlogic.androidgames.framework.game;import Com.badlogic.androidgames.framework.graphics;import Com.badlogic.androidgames.framework.input;import Com.badlogic.androidgames.framework.screen;public abstract class Glgame extends Activity implements Game, Renderer {en  Um glgamestate {Initialized, Running, Paused, finished, Idle} Glsurfaceview        Glview;    Glgraphics Glgraphics;    Audio audio; INput input;    FileIO FileIO;    Screen screen;    Glgamestate state = glgamestate.initialized;    Object statechanged = new Object ();    Long startTime = System.nanotime ();        WakeLock WakeLock;        @Override public void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);        Requestwindowfeature (Window.feature_no_title); GetWindow (). SetFlags (WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FL        Ag_fullscreen);        Glview = new Glsurfaceview (this);        Glview.setrenderer (this);                Setcontentview (Glview);        Glgraphics = new Glgraphics (Glview);        FileIO = new Androidfileio (Getassets ());        Audio = new Androidaudio (this);        input = new Androidinput (this, Glview, 1, 1);        PowerManager PowerManager = (powermanager) getsystemservice (Context.power_service);            WakeLock = Powermanager.newwakelock (Powermanager.full_wake_lock, "glgame");        }public void Onresume () {super.onresume ();        Glview.onresume ();    Wakelock.acquire ();                } @Override public void onsurfacecreated (GL10 gl, EGLConfig config) {GLGRAPHICS.SETGL (GL); Synchronized (statechanged) {if (state = = glgamestate.initialized) screen = GETSTARTSC            Reen ();            state = glgamestate.running;            Screen.resume ();        StartTime = System.nanotime (); }} @Override public void onsurfacechanged (GL10 gl, int width, int height) {} @Overrid                e public void Ondrawframe (GL10 gl) {glgamestate state = null;        Synchronized (statechanged) {state = This.state; } if (state = = glgamestate.running) {Float deltatime = (system.nanotime ()-starttime)/100000000            0.0f;                        StartTime = System.nanotime ();            Screen.update (deltatime); ScrEen.present (deltatime);                        } if (state = = glgamestate.paused) {screen.pause ();                Synchronized (statechanged) {this.state = Glgamestate.idle;            Statechanged.notifyall ();            }} if (state = = glgamestate.finished) {screen.pause ();            Screen.dispose ();                Synchronized (statechanged) {this.state = Glgamestate.idle;            Statechanged.notifyall ();            }}} @Override public void OnPause () {synchronized (statechanged) {            if (isfinishing ()) state = glgamestate.finished;            else state = glgamestate.paused;                    while (true) {try {statechanged.wait ();                Break } catch (Interruptedexception e) {}}} wakeLock.release ();          Glview.onpause ();    Super.onpause ();    } public Glgraphics Getglgraphics () {return glgraphics;    } @Override Public Input getinput () {return input;    } @Override Public FileIO Getfileio () {return FileIO;    } @Override Public Graphics getgraphics () {throw new IllegalStateException ("We are using opengl!");    } @Override Public Audio Getaudio () {return audio; } @Override public void Setscreen (screens) {if (screen = null) throw new Illegalargumentex        Ception ("screen must is not NULL");        This.screen.pause ();        This.screen.dispose ();        Screen.resume ();        Screen.update (0);    This.screen = screen;    } @Override Public Screens Getcurrentscreen () {return screen; }}

This paper briefly describes the basic knowledge of "beginning-android-games" books and the design analysis of related classes,
Books and source code:http://download.csdn.net/detail/yangzhenping/8420261
The class implementation in this article is from "Beginning-android-games\ch07-gl-basics"

Android game Screen class Testscreen and game class androidgame design