Get any map display name?

map_id = 1
temporary_map = load_data(sprintf("Data/Map%03d.rvdata2", map_id))
other_map_name = temporary_map.display_name

module NPC_Locations
  # This stores the dynamic locations of all npcs
  # It needs to be filled with the 'keys' for each
  # npc. A key looks like this - :some_name - if
  # you copy the examples below you should be fine.
  # You can leave the location blank if want like 
  # example #2
  @@locations = {
      :npc45 => "camp"
      :new_npc => ""
  }
  # This links the npcs to their corresponding id
  # in $game_variables
  # Every npc present above needs an entry here
  @@npc_game_vars = {
      :npc45 => 80
      :new_npc => 1
  }
 
  # To then make the quest journal reference our npcs
  # we use the following:
  # q[:location] = NPC_Locations[:npc45]
  # Obviously, replace :npc45 with whatever npc key you need

  def self.[](name)
    @@locations[name]
  end

  def self.[]=(id, newvar)
    @@locations[id].clear
    @@locations[id] << newvar
  end

  def self.update_all()
    @@locations.each_key do |key|
        loc_id = $game_variables[ @@npc_game_vars[key] ]
        loc_map = load_data(sprintf("Data/Map%03d.rvdata2", loc_id))
        loc_name = loc_map.display_name
        NPC_Locations[key] = loc_name
    end
  end

end

class Scene_Quest < Scene_MenuBase
  # Create an alias for the old method so we can call it
  alias MA_start start
  # Add our code to the scene start method
  def start
    # Call the original method
    MA_start
    # Call our update code
    NPC_Locations.update_all()
  end
 
end

module DataManager
 
  #--------------------------------------------------------------------------
  # * Create Wrapper Class
  #--------------------------------------------------------------------------
 
  class AAKHash
 
  def initialize(default = nil)
    @data = default || {}
  end

  def [](key)
    @data[key] || 0
  end

  def []=(key, value)
    @data[key] = value
  end
 
end
 
  #--------------------------------------------------------------------------
  # * Create Game Objects
  #--------------------------------------------------------------------------
  class << self
    alias create_game_objects_tablelist_base create_game_objects
  end
  def self.create_game_objects
    create_game_objects_tablelist_base
    $npcs = AAKHash.new
    $cards = AAKHash.new
    $guildloot = AAKHash.new
    $dailysearch = AAKHash.new
    $ingredients = AAKHash.new
  end
  #--------------------------------------------------------------------------
  # * Create Save Contents
  #--------------------------------------------------------------------------
  class << self
    alias make_save_contents_tablelist_base make_save_contents
  end
  def self.make_save_contents
    contents = make_save_contents_tablelist_base
    contents[:npcs] = $npcs
    contents[:cards] = $cards
    contents[:guildloot] = $guildloot
    contents[:dailysearch] = $dailysearch
    contents[:ingredients] = $ingredients
    contents
  end
  #--------------------------------------------------------------------------
  # * Extract Save Contents
  #--------------------------------------------------------------------------
  class << self
    alias extract_save_contents_tablelist_base extract_save_contents
  end
  def self.extract_save_contents(contents)
    extract_save_contents_tablelist_base(contents)
    $npcs = contents[:npcs]
    $cards = contents[:cards]
    $guildloot = contents[:guildloot]
    $dailysearch = contents[:dailysearch]
    $ingredients = contents[:ingredients]
  end

end

def self.update_all()
    @@locations.each_key do |key|
        loc_id = $game_variables[ @@npc_game_vars[key] ]
        loc_map = load_data(sprintf("Data/Map%03d.rvdata2", loc_id))
        loc_name = loc_map.display_name
        NPC_Locations[key] = loc_name
    end
  end

def self.update_all()
    @@locations.each_key do |key|
        loc_id = $npcs[key] #### <<<< This one
        loc_map = load_data(sprintf("Data/Map%03d.rvdata2", loc_id))
        loc_name = loc_map.display_name
        NPC_Locations[key] = loc_name
    end
  end

def self.update_all()
   @@locations.each_key do |key|
       loc_id = $npcs[key]
       if loc_id == 0
           loc_name = "Unavailable"
       else
           loc_map = load_data(sprintf("Data/Map%03d.rvdata2", loc_id))
           loc_name = loc_map.display_name
       end       
       NPC_Locations[key] = loc_name
   end
end

class Scene_Quest < Scene_MenuBase
  # Create an alias for the old method so we can call it
  alias ma_start start
  # Add our code to the scene start method
  def start
    # Call our update code
    NPC_Locations.update_all()  #<< Swap these
    # Call the original method
    ma_start                               #<< two lines
  end
end