@EventHandler
    public void onMove(PlayerMoveEvent evt) {
        if (!evt.getTo().getWorld().getName().equalsIgnoreCase("factionborders")) {
            return;
        }
        FactionBorder factionBorder = FactionBorderManager.getFactionBorderFromLocation(evt.getTo());
        if (factionBorder == null) {
            evt.getPlayer().sendMessage(Color.t("&cYou can not walk outside the border."));
            Vector direction = evt.getPlayer().getLocation().getDirection();
            evt.getPlayer().setVelocity(direction.setY(-0.5).multiply(-2));
            return;
        }
    }

  public static FactionBorder getFactionBorderFromLocation(Location location) {
        for (FactionBorder n : factionBorderList) {
            if (inArea(location, n.getCorner1(), n.getCorner3())) {
                return n;
            }
        }
        return null;
    }

    public static boolean inArea(Location targetLocation, Location inAreaLocation1, Location inAreaLocation2) {
        if (inAreaLocation1.getWorld().getName().equalsIgnoreCase(inAreaLocation2.getWorld().getName())) {
            if (targetLocation.getWorld().getName().equalsIgnoreCase(inAreaLocation1.getWorld().getName())) {
                if ((targetLocation.getBlockX() >= inAreaLocation1.getBlockX() && targetLocation.getBlockX() <= inAreaLocation2.getBlockX()) || (targetLocation.getBlockX() <= inAreaLocation1.getBlockX() && targetLocation.getBlockX() >= inAreaLocation2.getBlockX())) {
                    return (targetLocation.getBlockZ() >= inAreaLocation1.getBlockZ() && targetLocation.getBlockZ() <= inAreaLocation2.getBlockZ()) || (targetLocation.getBlockZ() <= inAreaLocation1.getBlockZ() && targetLocation.getBlockZ() >= inAreaLocation2.getBlockZ());
                }
            }
        }
        return false;
    }