Doctor Todd Difficulty - No Easy

#===============================================================================
#
# DT's Difficulty
# Author: DoctorTodd
# Date (15/12/2019)
# Version: (1.0.2) (VXA)
# Level: (Medium)
# Email: Todd@beacongames.com
#
#===============================================================================
#
# NOTES: 1)This script will only work with ace.
#        2)A difficulty must be selected before the first battle or the game WILL
#        CRASH.
#
#===============================================================================
#
# Description: Lets the player select the games difficulty.
#
# Credits: Me (DoctorTodd), D&P3 for saving bug fix.
# Additions by Roninator2
#    Easy option removed from 1.01 for request by SlickDeath97
#===============================================================================
#
# Instructions
# Paste above main.
#
#===============================================================================
#
# Free for any use as long as I'm credited.
#
#===============================================================================
#
# Editing begins 38 and ends on 81.
#
#===============================================================================
module TODDDIFFICULTY
#Normal Text.
NORMALT = "Normal"
#Heroic Text.
HEROICT = "Heroic"
#Hard Text.
HARDT = "Legendary"
#Heroic enemy parameters multiplier (Normal is skipped since it's what put
#you into the database).
HEROICM = 1.25
#Hard enemy parameters multiplier.
HARDM = 1.5
#Heroic enemy experience multiplier (Normal is skipped since it's what put
#you into the database).
HEROICEXPM = 1.25
#Hard enemy experience multiplier.
HARDEXPM = 1.5
#Heroic enemy gold multiplier (Normal is skipped since it's what put
#you into the database).
HEROICGOLDM = 1.5
#Hard enemy gold multiplier.
HARDGOLDM = 2
#Heroic enemy drop multiplier (Normal is skipped since it's what put
#you into the database).
HEROICDROPM = 1.25
#Hard enemy drop multiplier.
HARDDROPM = 1.5
#The text above where the selection is made.
TEXT = "Please select a difficulty:"
#Menu command?
MENU = true
#Sound effect to play when difficulty is selected.
SE = "Darkness8"
#Switch to allow cancelling the difficulty selection.
#MUST NOT BE ON WHEN SELECTING FOR THE FIRST TIME.
SWITCH = 5

end
#==============================================================================
# ** Game_Enemy
#------------------------------------------------------------------------------
#  This class handles enemies. It used within the Game_Troop class
# ($game_troop).
#==============================================================================

class Game_Enemy < Game_Battler
#--------------------------------------------------------------------------
# * Get Base Value of Parameter
#--------------------------------------------------------------------------
    alias todd_difficulty_gmen_param_base param_base
    def param_base(param_id, *args)
        n1 = todd_difficulty_gmen_param_base(param_id, *args)
        n2 = case $game_system.todd_difficulty
        when 0
            1
        when 1
            TODDDIFFICULTY::HEROICM
        when 2
            TODDDIFFICULTY::HARDM
        end
    return n1 * n2
    end
    #--------------------------------------------------------------------------
    # * Get Experience
    #--------------------------------------------------------------------------
    def exp
        case $game_system.todd_difficulty
        when 0
            enemy.exp
        when 1
            enemy.exp * TODDDIFFICULTY::HEROICEXPM
        when 2
            enemy.exp * TODDDIFFICULTY::HARDEXPM
        end
    end
    #--------------------------------------------------------------------------
    # * Get Gold
    #--------------------------------------------------------------------------
    def gold
        case $game_system.todd_difficulty
        when 0
            enemy.gold
        when 1
            enemy.gold * TODDDIFFICULTY::HEROICGOLDM
        when 2
            enemy.gold * TODDDIFFICULTY::HARDGOLDM
        end
    end
    #--------------------------------------------------------------------------
    # * Create Array of Dropped Items
    #--------------------------------------------------------------------------
    def make_drop_items
        case $game_system.todd_difficulty
    when 0
      @DropMulti = 1
    when 1
      @DropMulti = TODDDIFFICULTY::HEROICDROPM
    when 2
      @DropMulti = TODDDIFFICULTY::HARDDROPM
        end
        enemy.drop_items.inject([]) do |r, di|
      if di.kind > 0 && rand * di.denominator < drop_item_rate * @DropMulti
        r.push(item_object(di.kind, di.data_id))
      else
        r
      end
        end
    end
end

#==============================================================================
# ** Game_System
#------------------------------------------------------------------------------
#  This class handles system data. It saves the disable state of saving and
# menus. Instances of this class are referenced by $game_system.
#==============================================================================

class Game_System
#--------------------------------------------------------------------------
# * Public Instance Variables
#--------------------------------------------------------------------------
    attr_accessor :todd_difficulty # save forbidden
#--------------------------------------------------------------------------
# * Object Initialization
#--------------------------------------------------------------------------
    alias todd_difficulty_gamesystem_init initialize
    def initialize
        @todd_difficulty = 0
        todd_difficulty_gamesystem_init
    end
end

#==============================================================================
# ** Window_DifficultySelection
#==============================================================================

class Window_DifficultySelection < Window_HorzCommand
#--------------------------------------------------------------------------
# * Object Initialization
#--------------------------------------------------------------------------
    def initialize
        super(0, 0)
    end
    #--------------------------------------------------------------------------
    # * Get Window Width
    #--------------------------------------------------------------------------
    def window_width
        Graphics.width/2 + 20
    end
    #--------------------------------------------------------------------------
    # * Get Digit Count
    #--------------------------------------------------------------------------
    def col_max
        return 3
    end
    #--------------------------------------------------------------------------
    # * Create Command List
    #--------------------------------------------------------------------------
    def make_command_list
        add_command(TODDDIFFICULTY::NORMALT,   :normal)
        add_command(TODDDIFFICULTY::HEROICT,    :heroic)
        add_command(TODDDIFFICULTY::HARDT, :hard)
    end
end
#==============================================================================
# ** Window_DifficultyName
#==============================================================================

class Window_DifficultyName < Window_Base
#--------------------------------------------------------------------------
# * Object Initialization
#--------------------------------------------------------------------------
    def initialize
        super(0, 0, window_width, fitting_height(1))
        refresh
    end
    #--------------------------------------------------------------------------
    # * Get Window Width
    #--------------------------------------------------------------------------
    def window_width
        return Graphics.width/2 + 20
    end
    #--------------------------------------------------------------------------
    # * Refresh
    #--------------------------------------------------------------------------
    def refresh
        contents.clear
        draw_text(15, -27, 400, 80, TODDDIFFICULTY::TEXT)
    end
end
#==============================================================================
# ** Scene_Difficulty
#==============================================================================

class Scene_Difficulty < Scene_MenuBase
#--------------------------------------------------------------------------
# * Start Processing
#--------------------------------------------------------------------------
    def start
        super
        create_command_window
        create_name_window
    end
    #--------------------------------------------------------------------------
    # * Create Command Window
    #--------------------------------------------------------------------------
    def create_command_window
        @command_window = Window_DifficultySelection.new
        @command_window.set_handler(:normal,     method(:command_normal))
        @command_window.set_handler(:heroic,     method(:command_heroic))
        @command_window.set_handler(:hard,    method(:command_hard))
        @command_window.set_handler(:cancel,    method(:return_scene))if $game_switches[TODDDIFFICULTY::SWITCH] == true
        @command_window.x = Graphics.width/2 - 170
        @command_window.y = Graphics.height/2 - 50
    end
    #--------------------------------------------------------------------------
    # * Create Difficulty Window
    #--------------------------------------------------------------------------
    def create_name_window
        @name_window = Window_DifficultyName.new
        @name_window.x = Graphics.width/2 - 170
        @name_window.y = Graphics.height/2 - 97
    end
    #--------------------------------------------------------------------------
    # * [normal] Command
  #--------------------------------------------------------------------------
    def command_normal
        $game_system.todd_difficulty = 0
        Audio.se_play("Audio/SE/" + TODDDIFFICULTY::SE, 100, 100)
        return_scene
    end
    #--------------------------------------------------------------------------
    # * [heroic] Command
    #--------------------------------------------------------------------------
    def command_heroic
        $game_system.todd_difficulty = 1
        Audio.se_play("Audio/SE/" + TODDDIFFICULTY::SE, 100, 100)
        return_scene
    end
    #--------------------------------------------------------------------------
    # * [hard] Command
    #--------------------------------------------------------------------------
    def command_hard
        $game_system.todd_difficulty = 2
        Audio.se_play("Audio/SE/" + TODDDIFFICULTY::SE, 100, 100)
        return_scene
    end
end

if TODDDIFFICULTY::MENU == true
#==============================================================================
# ** Scene_Menu
#------------------------------------------------------------------------------
#  This class performs the menu screen processing.
#==============================================================================

    class Scene_Menu < Scene_MenuBase
    #--------------------------------------------------------------------------
    # * Create Command Window
    #--------------------------------------------------------------------------
    alias todd_dif_menu_add_menu_command create_command_window
    def create_command_window
        todd_dif_menu_add_menu_command
        @command_window.set_handler(:dif, method(:command_dif))
    end
end
    #--------------------------------------------------------------------------
    # * [Difficulty] Command
    #--------------------------------------------------------------------------
    def command_dif
        SceneManager.call(Scene_Difficulty)
    end
end

if TODDDIFFICULTY::MENU == true
#==============================================================================
# ** Window_MenuCommand
#------------------------------------------------------------------------------
#  This command window appears on the menu screen.
#==============================================================================

    class Window_MenuCommand < Window_Command
    #--------------------------------------------------------------------------
    # * Add Main Commands to List
    #--------------------------------------------------------------------------
        alias todd_dif_menu_command_add_to_menu add_main_commands
        def add_main_commands
            todd_dif_menu_command_add_to_menu
            add_command("Difficulty", :dif, main_commands_enabled)
        end
    end
end