@Override
  public Object addMessage(Hologram hologram, String message) {

    EntityArmorStand lastAs =
        hologram.getArmorStands().size() == 0
            ? null
            : (EntityArmorStand) hologram.getArmorStand(hologram.getArmorStands().size() - 1);
    EntityArmorStand as;

    if (lastAs != null) {
      as = new EntityArmorStand(lastAs.world);
      as.setInvisible(true);
      as.setCustomName(message);
      as.setCustomNameVisible(true);
      as.setSmall(true);
      as.setGravity(false);
      as.setLocation(
          lastAs.locX, lastAs.locY - hologram.getDistance(), lastAs.locZ, lastAs.yaw, lastAs.pitch);

    } else {
      Location loc = hologram.getLocation();

      as = new EntityArmorStand(((CraftWorld) loc.getWorld()).getHandle());
      as.setInvisible(true);
      as.setCustomName(message);
      as.setCustomNameVisible(true);
      as.setSmall(true);
      as.setGravity(false);
      as.setLocation(loc.getX(), loc.getY(), loc.getZ(), loc.getYaw(), loc.getPitch());
    }

    for (Player p : hologram.getPlayers()) {
      PacketPlayOutSpawnEntityLiving packet = new PacketPlayOutSpawnEntityLiving(as);
      ((CraftPlayer) p).getHandle().playerConnection.sendPacket(packet);
    }

    return as;
  }
  @Override
  public void move(Hologram hologram, Location newLocation) {

    List<EntityArmorStand> armorStands = new ArrayList<EntityArmorStand>();

    for (Object as : hologram.getArmorStands()) armorStands.add((EntityArmorStand) as);

    int newX = MathHelper.floor(newLocation.getX() * 32.0D);
    int newZ = MathHelper.floor(newLocation.getZ() * 32.0D);

    for (Player p : hologram.getPlayers()) {
      for (int i = 0; i < armorStands.size(); ++i) {

        EntityArmorStand as = armorStands.get(i);
        double distance = i * hologram.getDistance();
        int newY = MathHelper.floor((newLocation.getY() - distance) * 32.0D);

        PacketPlayOutEntityTeleport packet =
            new PacketPlayOutEntityTeleport(
                as.getId(),
                newX,
                newY,
                newZ,
                (byte) newLocation.getYaw(),
                (byte) newLocation.getPitch(),
                false);
        ((CraftPlayer) p).getHandle().playerConnection.sendPacket(packet);

        as.setLocation(
            newLocation.getX(),
            newLocation.getY() - distance,
            newLocation.getZ(),
            newLocation.getYaw(),
            newLocation.getPitch());
      }
    }
  }