こんにちは、ここで 1 つのアプリを実行しています。スプライトを弾むボールのように力で動かす必要があります。box2d を使用して、力と速度を適用する方法と、スプライトをボールのように移動する方法について、まったくわかりませんでした。誰か私に提案してください...
MainActivity.class:
public class MainActivity extends SimpleBaseGameActivity{
private Camera mCamera;
private BitmapTextureAtlas mBitmapTextureAtlas;
private ITextureRegion mFaceTextureRegion;
private BitmapTextureAtlas mOnScreenControlTexture;
private ITextureRegion mOnScreenControlBaseTextureRegion;
private ITextureRegion mOnScreenControlKnobTextureRegion;
@Override
public EngineOptions onCreateEngineOptions() {
Toast.makeText(this, "Also try tapping this AnalogOnScreenControl!", Toast.LENGTH_LONG).show();
this.mCamera = new Camera(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT);
return new EngineOptions(true, ScreenOrientation.LANDSCAPE_FIXED, new RatioResolutionPolicy(CAMERA_WIDTH, CAMERA_HEIGHT), this.mCamera);
}
@Override
public void onCreateResources() {
BitmapTextureAtlasTextureRegionFactory.setAssetBasePath("gfx/");
this.mBitmapTextureAtlas = new BitmapTextureAtlas(this.getTextureManager(), 32, 32, TextureOptions.BILINEAR);
this.mFaceTextureRegion = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mBitmapTextureAtlas, this, "face_box.png", 0, 0);
this.mBitmapTextureAtlas.load();
}
@Override
public Scene onCreateScene() {
this.mEngine.registerUpdateHandler(new FPSLogger());
final Scene scene = new Scene();
scene.setBackground(new Background(0.09804f, 0.6274f, 0.8784f));
final float centerX = (CAMERA_WIDTH - this.mFaceTextureRegion.getWidth()) / 2;
final float centerY = (CAMERA_HEIGHT - this.mFaceTextureRegion.getHeight()) / 2;
final Sprite face = new Sprite(centerX, centerY, this.mFaceTextureRegion, this.getVertexBufferObjectManager());
final PhysicsHandler physicsHandler = new PhysicsHandler(face);
face.registerUpdateHandler(physicsHandler);
scene.attachChild(face);
return scene;
}
}