MNK::FileTest

#===============================================================================
module MNK::FileHandle
#===============================================================================
  #-----------------------------------------------------------------------------
  # ☆ Save File Configuration
  #-----------------------------------------------------------------------------
  Folder = "MNK/"
  Name   = "sD13x"
  Ext    = ".mnk"


  #-----------------------------------------------------------------------------
  #
  #-----------------------------------------------------------------------------
  def self.make_folder(dir_name)
    return if Dir.exist?(dir_name)
    return Dir.mkdir(dir_name)
  end
  #-----------------------------------------------------------------------------
  #
  #-----------------------------------------------------------------------------
  def self.filename
    "#{Folder}#{Name}#{Ext}"
  end
  #-----------------------------------------------------------------------------
  #
  #-----------------------------------------------------------------------------
  def self.save_file_exists?
    !Dir.glob(filename).empty?
  end
  #-----------------------------------------------------------------------------
  #
  #-----------------------------------------------------------------------------
  def self.setup
    make_game_data
    load_game_data if save_file_exists?
  end
  #-----------------------------------------------------------------------------
  #
  #-----------------------------------------------------------------------------
  def self.make_game_data
    $mnk = MNK::DATA.new
    make_folder(Folder)
  end
  #-----------------------------------------------------------------------------
  #
  #-----------------------------------------------------------------------------
  def self.save_game_data
    begin
      save_game_without_rescue
    rescue
      delete_save_file
      false
    end
  end
  #-----------------------------------------------------------------------------
  #
  #-----------------------------------------------------------------------------
  def self.load_game_data
    load_game_without_rescue rescue false
  end
  #-----------------------------------------------------------------------------
  #
  #-----------------------------------------------------------------------------
  def self.delete_save_file
    File.delete(filename) rescue nil
  end
  #-----------------------------------------------------------------------------
  #
  #-----------------------------------------------------------------------------
  def self.save_game_without_rescue
    File.open(filename, "wb") { |file| file << compress($mnk) }
    return true
  end
  #-----------------------------------------------------------------------------
  #
  #-----------------------------------------------------------------------------
  def self.load_game_without_rescue
    File.open(filename, "rb") { |file| $mnk = decompress(file) }
    return true
  end
  #-----------------------------------------------------------------------------
  #
  #-----------------------------------------------------------------------------
  def self.compress(data)
    Zlib::Deflate.deflate(Marshal.dump(data))
  end
  #-----------------------------------------------------------------------------
  #
  #-----------------------------------------------------------------------------
  def self.decompress(data)
    Marshal.load(Zlib::Inflate.inflate(data.read))
  end
  #-----------------------------------------------------------------------------
  #
  #-----------------------------------------------------------------------------
end