This looks like its meant to be used as part of a save system addon or something. I'll try to write something to go with it.
Edit - I made a quick save/load system mod to use this system for save files. However, this doesn't look very secure and I would recommend that you use DREAM by Blizzard. It's in the script database and I'm pretty sure that it's much better than this script.
class Scene_Save
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
MakerCrypt.encrypt(filename)
# 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_Menu.new(4)
end
end
class Scene_Load
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
MakerCrypt.decrypt(filename)
file = File.open(filename, "rb")
read_save_data(file)
file.close
MakerCrypt.encrypt(filename)
# 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
end
class Window_SaveFile
def initialize(file_index, filename)
super(0, 64 + file_index % 4 * 104, 640, 104)
self.contents = Bitmap.new(width - 32, height - 32)
@file_index = file_index
@filename = "Save#{@file_index + 1}.rxdata"
@time_stamp = Time.at(0)
@file_exist = FileTest.exist?(@filename)
if @file_exist
MakerCrypt.decrypt(@filename)
file = File.open(@filename, "r")
@time_stamp = file.mtime
@characters = Marshal.load(file)
@frame_count = Marshal.load(file)
@game_system = Marshal.load(file)
@game_switches = Marshal.load(file)
@game_variables = Marshal.load(file)
@total_sec = @frame_count / Graphics.frame_rate
file.close
MakerCrypt.encrypt(@filename)
end
refresh
@selected = false
end
end