android - AndEngine - Sprite 不会在不同的设备上缩放

Question

代码:

这就是初始化相机的方式。
我'，试图获得设备的分辨率，并根据它设置相机的宽度和高度。

     public class GameActivity extends SimpleBaseGameActivity {

        private SmoothCamera mCamera;
        private DisplayMetrics dM; 

        private int CAMERA_WIDTH, CAMERA_HEIGHT;

        private double  ScreenWidth,
                        ScreenHeight,
                        resolutionRatio;


        public EngineOptions onCreateEngineOptions() {

             //set Camera
            getDeviceResolution();
            setCamera();


        EngineOptions options =  new EngineOptions(true,
            ScreenOrientation.LANDSCAPE_FIXED, 
            new RatioResolutionPolicy((int)this.getCameraWidth(),(int)this.getCameraHeight()),
            //new FillResolutionPolicy(),
            mCamera);
          return options;

        }

      private void getDeviceResolution() {
            dM = new DisplayMetrics();
            this.getWindowManager().getDefaultDisplay().getMetrics(dM);
            this.ScreenWidth    = dM.widthPixels;
            this.ScreenHeight   = dM.heightPixels;
            this.resolutionRatio = this.ScreenWidth/this.ScreenHeight;

                resolutionRatio = (double)Math.round(resolutionRatio * 100) / 100;

            Log.d("Resolution","ScrennWidth: "+this.ScreenWidth );
            Log.d("Resolution","ScrennHeight: "+this.ScreenHeight );
                    Log.d("Resolution","Resolution Ratio: " +   this.resolutionRatio );
        }



    private void setCamera() {

        if(resolutionRatio == 1.66){
            this.setCameraHeight(340);
            this.setCameraWidth(400);
        }else if(resolutionRatio == 2.13){
            this.setCameraHeight(480);
            this.setCameraWidth(1024);
        }else if(resolutionRatio == 1.77){
            this.setCameraHeight(720);
            this.setCameraWidth(1280);
        }else if(resolutionRatio == 1.5){
            this.setCameraHeight(320);
            this.setCameraWidth(480);
        }else if(resolutionRatio == 1.67){
            this.setCameraHeight(480);
            this.setCameraWidth(800);
        }else {
            this.setCameraHeight((int) this.ScreenHeight);
            this.setCameraWidth((int) this.ScreenWidth);
        }

        // Create a Camera
        this.mCamera = new SmoothCamera(0,0,(int)getCameraWidth(),(int)getCameraHeight(),100,100,1.0f);
            mCamera.setZoomFactor(1.0f);

            mCamera.setBoundsEnabled(true);
            mCamera.setBounds(0, 0, mCamera.getWidth(), mCamera.getHeight());   
        }



        }

问题是。

我已经在分辨率为 480x320 的设备上尝试过游戏；

当我在分辨率为 800X480 的设备上尝试相同的代码时

我认为 Sprite 不会在更高分辨率的设备上缩放。
据我所知，引擎会原生缩放相机和 Sprite 。

那么为什么 Sprite 在这种情况下没有缩放？

我应该怎么做才能根据分辨率放大 Sprite ？

我也试过 FillResolutionPolicy。同样的事情。

我正在使用 andengine 的 TexturePackerExtension 和 SpriteSheets。

Answer 1

您想要一个具有固定宽度 和由设备屏幕纵横比计算的高度 的相机。将其与 FillResolutionPolicy 配对，您将获得所需的结果。

注意:

AndEngine doesn't scale Sprites for you, but you set the Camera so that the whole Scene appears scaled.