public class MyAtlas extends TileAtlas {


        public MyAtlas(TiledMap map) {

            for (TileSet set : map.tileSets) {


                Texture text = new Texture(dir + "/" + set.imageName);

                int textureWidth = text.getWidth();
                int textureHeight = text.getHeight();

                AtlasRegion reg;

                int index = 0;
                for(int y = 0 ; y < textureHeight / set.tileHeight ; y++) {
                    for(int x = 0 ; x < textureWidth / set.tileHeight ; x++) {
                        if(x * set.tileWidth + (x * set.spacing) + set.tileWidth > text.getWidth()) continue;
                        reg = new AtlasRegion(text, x * set.tileWidth + (x * set.spacing), y * set.tileHeight + (y*set.spacing), set.tileWidth, set.tileHeight);
                        regionsMap.put(index + set.firstgid, reg);
                        index++;
                    }
                }


            }
        }

        public TextureRegion getRegion(int id) {
            return regionsMap.get(id);
        }
    }