Prompt for Overwrite Confirmation when Saving

[RPG Advocate]

Prompt for Overwrite Confirmation when Saving
by RPG Advocate
saved from Phylomortis.Com

Introduction
This script modifies the save system so that if the player attempts to save in a slot already occupied by a save file, the game will ask for confirmation before overwriting the save.


Demo
>Click<


Script

Save Overwrite Confirmation Prompt

Code:

# Prompt for Overwrite Confirmation when Saving
# by RPG Advocate


#==============================================================================
# ** Scene_File
#------------------------------------------------------------------------------
#  This is a superclass for the save screen and load screen.
#==============================================================================

class Scene_File
  #--------------------------------------------------------------------------
  # * Main Processing
  #--------------------------------------------------------------------------
  alias pfocws_main main
  def main
    pfocws_main
    if self.is_a?(Scene_Save)
      @confirm_window.dispose
      @yes_no_window.dispose
    end    
  end
end



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

class Scene_Save < Scene_File
  #--------------------------------------------------------------------------
  # * Object Initialization
  #--------------------------------------------------------------------------
  alias pfocws_initialize initialize
  def initialize
    pfocws_initialize
    # Create confirm window
    @confirm_window = Window_Base.new(120, 188, 400, 64)
    @confirm_window.contents = Bitmap.new(368, 32)
    string = "Really overwrite this file?"
    @confirm_window.contents.draw_text(4, 0, 368, 32, string)
    @confirm_window.visible = false
    @confirm_window.z = 1500
    # Create Yes/No Window
    @yes_no_window = Window_Command.new(100, ["Yes", "No"])
    @yes_no_window.visible = false
    @yes_no_window.active = false
    @yes_no_window.index = 1
    @yes_no_window.x = 270
    @yes_no_window.y = 252
    @yes_no_window.z = 1500
    @mode = 0
  end
  #--------------------------------------------------------------------------
  # * Decision Processing
  #--------------------------------------------------------------------------
  alias pfocws_on_decision on_decision
  def on_decision(filename)
    # If savegame already exists
    if FileTest.exist?(filename)
      # Show decision window
      @confirm_window.visible = true
      @yes_no_window.visible = true
      @yes_no_window.active = true
      @mode = 1
    else
      # The original call
      pfocws_on_decision(filename)
    end
  end
  #--------------------------------------------------------------------------
  # * Frame Update
  #--------------------------------------------------------------------------
  def update
    if @mode == 0
      super
    else
      # Update windows
      @help_window.update
      @yes_no_window.update
      # If B button was pressed
      if Input.trigger?(Input::B)
        # Hide the windows
        @confirm_window.visible = false
        @yes_no_window.visible = false
        @yes_no_window.active = false
        @yes_no_window.index = 1
        @mode = 0
        return
      end
      # If C button was pressed
      if Input.trigger?(Input::C)
        # Play decision SE
        $game_system.se_play($data_system.decision_se)
        # If overwrite/write permitted
        if @yes_no_window.index == 0
          filename = make_filename(@file_index)
          # 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
          else
            # Switch to menu screen
            $scene = Scene_Menu.new(4)
          end
        else
          # Hide the windows
          @confirm_window.visible = false
          @yes_no_window.visible = false
          @yes_no_window.active = false
          @yes_no_window.index = 1
          @mode = 0
        end
      end
    end
  end
end