public TextureAtlas.AtlasRegion getFlipped(TextureAtlas.AtlasRegion tex) {
   TextureAtlas.AtlasRegion r = myFlipped.get(tex);
   if (r != null) return r;
   r = myTexProvider.getCopy(tex);
   r.flip(true, false);
   myFlipped.put(tex, r);
   return r;
 }