code: public void addPoi(final Poi BLIP) {
          if (pois.keySet().contains(BLIP.getName())) {
              updatePoi(BLIP.getName(), BLIP.getLocation());
          } else {
              pois.put(BLIP.getName(), BLIP);
          }
          checkForBlips();
      }
docs: Adds a new point of interest to the list of poi's of the radar
  Keep in mind that only the poi's are visible as blips that are
  in the range of the radar.
  @param BLIP