Go语言视频零基础入门到精通

jspfan

我决定采用AndEngine 开始开发游戏
可是一入门就遇到了一个背景图片无法填满整个画面
我的代码如下:
public class DrawSpriter extends BaseGameActivity {

    private Camera mCamera;

    private static final int CAMERA_WIDTH = 720;

    private static final int CAMERA_HEIGHT = 480;

    private Texture mTexture;

    private Texture mAutoParallaxBackgroundTexture,mFaceTexture;

    private TextureRegion mBackgroundTextureRegion;

    private TextureRegion mFaceTextureRegion;

    @Override

    public void onLoadComplete() {

        // TODO Auto-generated method stub



    }



    @Override

    public Engine onLoadEngine() {

        this.mCamera = new Camera(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT);

        

   

        return new Engine(new EngineOptions(true, ScreenOrientation.PORTRAIT, new RatioResolutionPolicy(CAMERA_WIDTH, CAMERA_HEIGHT), this.mCamera));

    }

   



    @Override

    public void onLoadResources() {

        

        

        this.mTexture = new Texture(1024, 1024, TextureOptions.DEFAULT);

        TextureRegionFactory.setAssetBasePath("gfw/");

        

        

        this.mBackgroundTextureRegion    =    TextureRegionFactory.createFromAsset(this.mTexture, this, "snake_background.png",0,0);

        this.mFaceTexture = new Texture(32, 32, TextureOptions.BILINEAR_PREMULTIPLYALPHA);

        this.mFaceTextureRegion = TextureRegionFactory.createFromAsset(this.mFaceTexture, this, "face_box.png", 0, 0);



        

        this.mEngine.getTextureManager().loadTextures(this.mTexture,this.mFaceTexture);

    }



    @Override

    public Scene onLoadScene() {

        // TODO Auto-generated method stub

    //    Toast.makeText(this, "onLoadScene", Toast.LENGTH_LONG).show();

        this.mEngine.registerUpdateHandler(new FPSLogger());



        final Scene scene = new Scene(2);

        scene.setBackgroundEnabled(false);

        scene.getLayer(0).addEntity(new Sprite(0, 10, this.mBackgroundTextureRegion));

        

   



        return scene;

        

    }



}
复制代码

我在assets/gfw 放置了一张背景图，然后用mBackgroundTextureRegion     来载入背景
可是执行之后，背景图只有放在中间
我这张背景图原来的尺寸是640x480
请问我那里做错了呢
有人可以指点一下吗
谢谢