AndEngine完整图片背景（宽度和高度）

Question

我真的是Android游戏开发的新手，我面临着有关屏幕图像背景的问题。

这是扩展SimpleBaseGameActivity完整类代码
更新了与​​图像尺寸对应的相机宽度和高度

private final int CAMERA_WIDTH = 480;//800;
private final int CAMERA_HEIGHT = 836; //1280;

private Camera mCamera;

//Background variables
private TextureRegion region;

private Scene mScene;

@Override
public EngineOptions onCreateEngineOptions() {
    this.mCamera = new Camera(0,0,CAMERA_WIDTH,CAMERA_HEIGHT);

    return new EngineOptions(true, ScreenOrientation.PORTRAIT_SENSOR, new RatioResolutionPolicy(CAMERA_WIDTH, CAMERA_HEIGHT), this.mCamera);
}

@Override
protected void onCreateResources() throws IOException {
    BitmapTextureAtlas atlas = new BitmapTextureAtlas(this.getTextureManager(),CAMERA_WIDTH+CAMERA_WIDTH,CAMERA_HEIGHT+CAMERA_HEIGHT);

    this.region = BitmapTextureAtlasTextureRegionFactory.createFromAsset(atlas,this,"snow_bg.png",0,0);
    atlas.load();

}

@Override
protected Scene onCreateScene() {
    this.mEngine.registerUpdateHandler(new FPSLogger());

    this.mScene = new Scene();
    Sprite sprite = new Sprite(0,0,region,this.getVertexBufferObjectManager());
    this.mScene.setBackground(new SpriteBackground(sprite));

    return this.mScene;
}

我面临的问题是背景图片，它不是全屏显示。 我一直在寻找如何在AndEngine拉伸图像背景，但是我没有找到任何好的资源。

这是屏幕截图。

但是图像全屏视图是

请给我一些建议，以实现目标。

提前致谢。

Answer 1

首先：可爱的背景！ 第二：您的区域尺寸应为2的幂（256x256、1024x512、2048x2048等）。 第三：您的图片尺寸是多少？ 它们与您的相机的宽度或高度相同吗？ 如果没有，您可以这样做：

mScene.setBackground(new SpriteBackground(this.mCamera, new Sprite(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT, this.region))); . 

通常的想法是设置背景尺寸，而不仅仅是背景位置，因为背景尺寸不会自动拉伸到屏幕尺寸。

Answer 2

多亏了sukasz Motyczka，我才得以通过制作精灵来实现

float centerX = CAMERA_WIDTH/2;
float centerY = CAMERA_HEIGHT/2;

Sprite sprite = new Sprite(centerX,centerY,this.region, this.getVertexBufferObjectManager());

这是我的完整代码

private final int CAMERA_WIDTH = 480;
private final int CAMERA_HEIGHT = 836;

private Camera mCamera;
private TextureRegion region;

private Scene mScene;

@Override
public EngineOptions onCreateEngineOptions() {
    this.mCamera = new Camera(0,0,CAMERA_WIDTH,CAMERA_HEIGHT);

    return new EngineOptions(true, ScreenOrientation.PORTRAIT_SENSOR, new RatioResolutionPolicy(CAMERA_WIDTH, CAMERA_HEIGHT), this.mCamera);
}

@Override
protected void onCreateResources() throws IOException {
    BitmapTextureAtlas atlas = new BitmapTextureAtlas(this.getTextureManager(),CAMERA_WIDTH,CAMERA_HEIGHT);
    this.region = BitmapTextureAtlasTextureRegionFactory.createFromAsset(atlas,this,"snow_bg.png",0,0);
    atlas.load();

}

@Override
protected Scene onCreateScene() {
    this.mEngine.registerUpdateHandler(new FPSLogger());

    this.mScene = new Scene();
    float centerX = CAMERA_WIDTH/2;
    float centerY = CAMERA_HEIGHT/2;

    Sprite sprite = new Sprite(centerX,centerY,this.region, this.getVertexBufferObjectManager());
    this.mScene.setBackground(new SpriteBackground(sprite));

    return this.mScene;
}

Answer 3

改变这个

Sprite sprite = new Sprite(0,0,region,this.getVertexBufferObjectManager());

至

Sprite sprite = new Sprite(0, 0, region,getWidth(), region.getHeight(), region, this.getVertexBufferObjectManager());