private void displayCommand(Command c, Player p) {
   p.sendMessage("-------------Command Arguments---------------");
   p.sendMessage("--------------------------------------------");
   for (Argument arg : c.listArguments()) {
     p.sendMessage(arg.toString());
   }
 }
  private void displayCategory(Category c, Player p) {
    p.sendMessage("----Available Commands and Sub-Categories----");
    p.sendMessage("-----------------------------------------");
    for (Command com : c.listCommands()) {
      p.sendMessage(com.toString());
    }

    for (Category subCat : c.listCategories()) {
      p.sendMessage(subCat.toString());
    }
  }