AndEngine全图背景（宽高）

Question

我是 Android 游戏开发的新手，我面临着屏幕图像背景的问题。

这是我的完整 class 代码，它扩展了 SimpleBaseGameActivity
已更新与图像尺寸相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;
}

我遇到的问题是背景图片不是全屏。我一直在搜索如何在 AndEngine 中拉伸图像背景，但我没有找到任何好的资源。

这是屏幕截图。

但图像全屏视图是

请给我一些建议我应该怎么做或示例代码来实现我的目标。

提前致谢。

Answer 1

首先：可爱的背景！第二：您的区域尺寸应该是二的幂（256x256、1024x512、2048x2048 等等）。第三：你的图像尺寸是多少？它们与您的相机宽度或高度相同吗？如果没有，你可以这样做：

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

一般的想法是设置背景的尺寸，而不仅仅是它的位置，因为它不会自动拉伸到屏幕的大小。

Answer 2

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());

Answer 3

多亏了 Łukasz Motyczka，我才能够通过制作我的精灵来做到这一点

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;
}

AndEngine全图背景（宽高）

AndEngine Full Image Background (width and height)

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andengine