code: protected final Section getSection (int x, int y, boolean create)
      {
          int key = key(x, y);
          Section sect = _sections.get(key);
          if (sect == null && create) {
              short sx = (short)(MathUtil.floorDiv(x, swidth)*swidth);
              short sy = (short)(MathUtil.floorDiv(y, sheight)*sheight);
              _sections.put(key, sect = new Section(sx, sy, swidth, sheight));
  //             Log.info("Created new section " + sect + ".");
          }
          return sect;
      }
docs: Returns the section for the specified tile coordinate.