public List<ScoredItem> calculate() {
    List<ScoredItem> route = new ArrayList();
    List<ItemDistance> distances = calculateDistances(this.initialPoint, this.items);
    while(!distances.isEmpty()){
        ItemDistance closest = getClosestItem(distances);
        route.add(closest.getItem());
        distances.remove(closest);
        distances = calculateDistances(new GeoPoint(closest.getItem().getLatitude(),
                                        closest.getItem().getLongitude()),
                                        getItemsFromItemDistance(distances));
    }
    return route;
}