我正在使用andengine在android中开发游戏。我在sprite中放置了一个对象，例如this.mTexture=newTexture(32,32,TextureOptions.BILINEAR_PREMULTIPLYALPHA);this.mFaceTextureRegion=TextureRegionFactory.createFromAsset(this.mTexture,this,"gfx/bike.png",0,0);----andiplacelikeSpritebikeSprite=newSprite(20,50,this.mFaceTextureRegion);我