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Savepoint

Save Point
Version: 1.00

Introduction
This is a savepoint which allows you to save and load. Simple as that. :crazy:

Screenshots

Imagine Scene_End but with options that take you to the Save, Load, and back to the game.

Script


Code:
#==============================================================================
# ** Scene_End
#------------------------------------------------------------------------------
#  This class performs game end screen processing.
#==============================================================================

class Scene_SavePoint
  #--------------------------------------------------------------------------
  # * Main Processing
  #--------------------------------------------------------------------------
  def main
    # Make command window
    s1 = "Save"
    s2 = "Load"
    s3 = "Return to game"
    @command_window = Window_Command.new(192, [s1, s2, s3])
    @command_window.x = 320 - @command_window.width / 2
    @command_window.y = 240 - @command_window.height / 2
    # Execute transition
    Graphics.transition
    # Main loop
    loop do
      # Update game screen
      Graphics.update
      # Update input information
      Input.update
      # Frame Update
      update
      # Abort loop if screen is changed
      if $scene != self
        break
      end
    end
    # Prepare for transition
    Graphics.freeze
    # Dispose of window
    @command_window.dispose
    # If switching to title screen
    if $scene.is_a?(Scene_Title)
      # Fade out screen
      Graphics.transition
      Graphics.freeze
    end
  end
  #--------------------------------------------------------------------------
  # * Frame Update
  #--------------------------------------------------------------------------
  def update
    # Update command window
    @command_window.update
    # If B button was pressed
    if Input.trigger?(Input::B)
      # Play cancel SE
      $game_system.se_play($data_system.cancel_se)
      # Switch to menu screen
      $scene = Scene_Map.new
      return
    end
    # If C button was pressed
    if Input.trigger?(Input::C)
      # Branch by command window cursor position
      case @command_window.index
      when 0  # to title
        command_save
      when 1  # shutdown
        command_load
      when 2  # quit
        command_cancel
      end
      return
    end
  end
  #--------------------------------------------------------------------------
  # * Process When Choosing [To Title] Command
  #--------------------------------------------------------------------------
  def command_save
    # Play decision SE
    $game_system.se_play($data_system.decision_se)
    # Fade out BGM, BGS, and ME
    Audio.bgm_fade(800)
    Audio.bgs_fade(800)
    Audio.me_fade(800)
    # Switch to title screen
    $scene = Scene_Save_Pt.new
  end
  #--------------------------------------------------------------------------
  # * Process When Choosing [Shutdown] Command
  #--------------------------------------------------------------------------
  def command_load
    # Play decision SE
    $game_system.se_play($data_system.decision_se)
    # Fade out BGM, BGS, and ME
    Audio.bgm_fade(800)
    Audio.bgs_fade(800)
    Audio.me_fade(800)
    # Shutdown
    $scene = Scene_LoadPoint.new
  end
  #--------------------------------------------------------------------------
  # *  Process When Choosing [Cancel] Command
  #--------------------------------------------------------------------------
  def command_cancel
    # Play decision SE
    $game_system.se_play($data_system.decision_se)
    # Switch to menu screen
    $scene = Scene_Map.new
  end
end
Code:
#==============================================================================
# ** Scene_Load
#------------------------------------------------------------------------------
#  This class performs load screen processing.
#==============================================================================

class Scene_LoadPoint < Scene_File
  #--------------------------------------------------------------------------
  # * Object Initialization
  #--------------------------------------------------------------------------
  def initialize
    # Remake temporary object
    $game_temp = Game_Temp.new
    # Timestamp selects new file
    $game_temp.last_file_index = 0
    latest_time = Time.at(0)
    for i in 0..3
      filename = make_filename(i)
      if FileTest.exist?(filename)
        file = File.open(filename, "r")
        if file.mtime > latest_time
          latest_time = file.mtime
          $game_temp.last_file_index = i
        end
        file.close
      end
    end
    super("Which file would you like to load?")
  end
  #--------------------------------------------------------------------------
  # * Decision Processing
  #--------------------------------------------------------------------------
  def on_decision(filename)
    # If file doesn't exist
    unless FileTest.exist?(filename)
      # Play buzzer SE
      $game_system.se_play($data_system.buzzer_se)
      return
    end
    # Play load SE
    $game_system.se_play($data_system.load_se)
    # Read save data
    file = File.open(filename, "rb")
    read_save_data(file)
    file.close
    # Restore BGM and BGS
    $game_system.bgm_play($game_system.playing_bgm)
    $game_system.bgs_play($game_system.playing_bgs)
    # Update map (run parallel process event)
    $game_map.update
    # Switch to map screen
    $scene = Scene_Map.new
  end
  #--------------------------------------------------------------------------
  # * Cancel Processing
  #--------------------------------------------------------------------------
  def on_cancel
    # Play cancel SE
    $game_system.se_play($data_system.cancel_se)
    # Switch to title screen
    $scene = Scene_SavePoint.new
  end
  #--------------------------------------------------------------------------
  # * Read Save Data
  #     file : file object for reading (opened)
  #--------------------------------------------------------------------------
  def read_save_data(file)
    # Read character data for drawing save file
    characters = Marshal.load(file)
    # Read frame count for measuring play time
    Graphics.frame_count = Marshal.load(file)
    # Read each type of game object
    $game_system        = Marshal.load(file)
    $game_switches      = Marshal.load(file)
    $game_variables     = Marshal.load(file)
    $game_self_switches = Marshal.load(file)
    $game_screen        = Marshal.load(file)
    $game_actors        = Marshal.load(file)
    $game_party         = Marshal.load(file)
    $game_troop         = Marshal.load(file)
    $game_map           = Marshal.load(file)
    $game_player        = Marshal.load(file)
    # If magic number is different from when saving
    # (if editing was added with editor)
    if $game_system.magic_number != $data_system.magic_number
      # Load map
      $game_map.setup($game_map.map_id)
      $game_player.center($game_player.x, $game_player.y)
    end
    # Refresh party members
    $game_party.refresh
  end
end

Code:
#==============================================================================
# ** Scene_Save
#------------------------------------------------------------------------------
#  This class performs save screen processing.
#==============================================================================

class Scene_Save_Pt < Scene_File
  #--------------------------------------------------------------------------
  # * Object Initialization
  #--------------------------------------------------------------------------
  def initialize
    super("Which file would you like to save to?")
  end
  #--------------------------------------------------------------------------
  # * Decision Processing
  #--------------------------------------------------------------------------
  def on_decision(filename)
    # Play save SE
    $game_system.se_play($data_system.save_se)
    # Write save data
    file = File.open(filename, "wb")
    write_save_data(file)
    file.close
    # If called from event
    if $game_temp.save_calling
      # Clear save call flag
      $game_temp.save_calling = false
      # Switch to map screen
      $scene = Scene_Map.new
      return
    end
    # Switch to menu screen
    $scene = Scene_SavePoint.new
  end
  #--------------------------------------------------------------------------
  # * Cancel Processing
  #--------------------------------------------------------------------------
  def on_cancel
    # Play cancel SE
    $game_system.se_play($data_system.cancel_se)
    # If called from event
    if $game_temp.save_calling
      # Clear save call flag
      $game_temp.save_calling = false
      # Switch to map screen
      $scene = Scene_Map.new
      return
    end
    # Switch to menu screen
    $scene = Scene_SavePoint.new
  end
  #--------------------------------------------------------------------------
  # * Write Save Data
  #     file : write file object (opened)
  #--------------------------------------------------------------------------
  def write_save_data(file)
    # Make character data for drawing save file
    characters = []
    for i in 0...$game_party.actors.size
      actor = $game_party.actors[i]
      characters.push([actor.character_name, actor.character_hue])
    end
    # Write character data for drawing save file
    Marshal.dump(characters, file)
    # Wrire frame count for measuring play time
    Marshal.dump(Graphics.frame_count, file)
    # Increase save count by 1
    $game_system.save_count += 1
    # Save magic number
    # (A random value will be written each time saving with editor)
    $game_system.magic_number = $data_system.magic_number
    # Write each type of game object
    Marshal.dump($game_system, file)
    Marshal.dump($game_switches, file)
    Marshal.dump($game_variables, file)
    Marshal.dump($game_self_switches, file)
    Marshal.dump($game_screen, file)
    Marshal.dump($game_actors, file)
    Marshal.dump($game_party, file)
    Marshal.dump($game_troop, file)
    Marshal.dump($game_map, file)
    Marshal.dump($game_player, file)
  end
end
Instructions

Put all 3 scenes above main, in any order.

Author's Notes
I know this could have been done better, but I'm not a scripter excactly, and I haven't learnt to script, so it probably could've been done loads better. I might make it one scene if I feel like it some day, but don't count on it.

Compatibility
Prolly won't work with the SDK, but it isn't tested.
 

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