How to use

getEntityPlayer

method

in

net.minecraftforge.event.entity.player.PlayerEvent$NameFormat

@SubscribeEvent(priority = EventPriority.LOW)
public static void onNameFormat(PlayerEvent.NameFormat event)
{
  if (FTBUtilitiesConfig.commands.nick && Universe.loaded() && event.getEntityPlayer() instanceof EntityPlayerMP)
  {
    ForgePlayer p = Universe.get().getPlayer(event.getEntityPlayer().getGameProfile());
    if (p != null)
    {
      FTBUtilitiesPlayerData data = FTBUtilitiesPlayerData.get(p);
      if (!data.getNickname().isEmpty() && PermissionAPI.hasPermission(event.getEntityPlayer(), FTBUtilitiesPermissions.CHAT_NICKNAME_SET))
      {
        String name = StringUtils.addFormatting(data.getNickname());
        if (!p.hasPermission(FTBUtilitiesPermissions.CHAT_NICKNAME_COLORS))
        {
          name = StringUtils.unformatted(name);
        }
        else if (name.indexOf(StringUtils.FORMATTING_CHAR) != -1)
        {
          name += TextFormatting.RESET;
        }
        if (FTBUtilitiesConfig.chat.add_nickname_tilde)
        {
          name = "~" + name;
        }
        event.setDisplayname(name);
      }
    }
  }
}

@SubscribeEvent(priority = EventPriority.LOW)
public void onPlayerName(PlayerEvent.NameFormat event) {
  if (event.getEntityPlayer() != null && !Configs.disable_factionDisplayChat) {
    IFactionPlayer fp = FactionPlayerHandler.get(event.getEntityPlayer()).getCurrentFactionPlayer();
    IFaction f = fp == null ? null : fp.getDisguisedAs();
    if (f != null) {
      event.setDisplayname(f.getChatColor() + event.getDisplayname() + TextFormatting.RESET);
      if (fp instanceof IVampirePlayer && !fp.isDisguised() && ((IVampirePlayer) fp).isVampireLord()) {
        event.setDisplayname(TextFormatting.RED + "[" + UtilLib.translate("text.vampirism.lord") + "] " + TextFormatting.RESET + event.getDisplayname());
      }
    }
  }
}