Andengine中的自動視差背景

Question

如何在AndEngine中創建從前端合併到底部展開的視差背景？

有一種方法可以做到這一點，但我失去了一些東西......我的視差背景工作正常，但它不合並從開始到底部。

Answer 1

@Override 
public void onLoadResources() { 
    BitmapTextureAtlasTextureRegionFactory.setAssetBasePath("gfx/"); 

    this.mBitmapTextureAtlas = new BitmapTextureAtlas(256, 128, TextureOptions.BILINEAR_PREMULTIPLYALPHA); 
    this.mPlayerTextureRegion = BitmapTextureAtlasTextureRegionFactory.createTiledFromAsset(this.mBitmapTextureAtlas, this, "player.png", 0, 0, 3, 4); 
    this.mEnemyTextureRegion = BitmapTextureAtlasTextureRegionFactory.createTiledFromAsset(this.mBitmapTextureAtlas, this, "enemy.png", 73, 0, 3, 4); 

    this.mAutoParallaxBackgroundTexture = new BitmapTextureAtlas(1024, 1024, TextureOptions.DEFAULT); 
    this.mParallaxLayerFront = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mAutoParallaxBackgroundTexture, this, "parallax_background_layer_front.png", 0, 0); 
    this.mParallaxLayerBack = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mAutoParallaxBackgroundTexture, this, "parallax_background_layer_back.png", 0, 188); 
    this.mParallaxLayerMid = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mAutoParallaxBackgroundTexture, this, "parallax_background_layer_mid.png", 0, 669); 

    this.mEngine.getTextureManager().loadTextures(this.mBitmapTextureAtlas, this.mAutoParallaxBackgroundTexture); 
} 

@Override 
public Scene onLoadScene() { 
    this.mEngine.registerUpdateHandler(new FPSLogger()); 

    final Scene scene = new Scene(); 
    final AutoParallaxBackground autoParallaxBackground = new AutoParallaxBackground(0, 0, 0, 5); 
    autoParallaxBackground.attachParallaxEntity(new ParallaxEntity(0.0f, new Sprite(0, CAMERA_HEIGHT - this.mParallaxLayerBack.getHeight(), this.mParallaxLayerBack))); 
    autoParallaxBackground.attachParallaxEntity(new ParallaxEntity(-5.0f, new Sprite(0, 80, this.mParallaxLayerMid))); 
    autoParallaxBackground.attachParallaxEntity(new ParallaxEntity(-10.0f, new Sprite(0, CAMERA_HEIGHT - this.mParallaxLayerFront.getHeight(), this.mParallaxLayerFront))); 
    scene.setBackground(autoParallaxBackground); 

    /* Calculate the coordinates for the face, so its centered on the camera. */ 
    final int playerX = (CAMERA_WIDTH - this.mPlayerTextureRegion.getTileWidth())/2; 
    final int playerY = CAMERA_HEIGHT - this.mPlayerTextureRegion.getTileHeight() - 5; 

    /* Create two sprits and add it to the scene. */ 
    final AnimatedSprite player = new AnimatedSprite(playerX, playerY, this.mPlayerTextureRegion); 
    player.setScaleCenterY(this.mPlayerTextureRegion.getTileHeight()); 
    player.setScale(2); 
    player.animate(new long[]{200, 200, 200}, 3, 5, true); 

    final AnimatedSprite enemy = new AnimatedSprite(playerX - 80, playerY, this.mEnemyTextureRegion); 
    enemy.setScaleCenterY(this.mEnemyTextureRegion.getTileHeight()); 
    enemy.setScale(2); 
    enemy.animate(new long[]{200, 200, 200}, 3, 5, true); 

    scene.attachChild(player); 
    scene.attachChild(enemy); 

    return scene; 
} 

@Override 
public void onLoadComplete() { 

} 

}

Answer 2

我使用全屏

autoParallaxBackground.attachParallaxEntity(new ParallaxEntity(0.0f, new Sprite(0, 0, camera.getWidth() ,camera.getHeight() ,this.mParallaxLayerBack, vertexBufferObjectManager))); 
    autoParallaxBackground.attachParallaxEntity(new ParallaxEntity(-5.0f, new Sprite(0, 80, this.mParallaxLayerMid, vertexBufferObjectManager))); 
    autoParallaxBackground.attachParallaxEntity(new ParallaxEntity(-10.0f, new Sprite(0, cameraHeight - this.mParallaxLayerFront.getHeight(), this.mParallaxLayerFront, vertexBufferObjectManager))); 
    scene.setBackground(autoParallaxBackground); 

通知，相機是一個全局變量，我希望這能幫助你！