TroyZ - Preemptive Surprise Toggler

# ==============================================================================
# ▼▼▼▼▼▼                TroyZ - Preemptive Surprise Toggler               ▼▼▼▼▼▼
# ==============================================================================
# Script by : Agung Prasetyo(TroyZ)
# Contact me by : - Email agung.endisnear.xyz@gmail.com
#                 - Forum RPGMakerID, username TroyZ
#                 - Handphone 085756289121
# Engine : VXAce
# Level : Easy
# Version : 1.0
# ------------------------------------------------------------------------------
# Change Logs :
# 17 June 2013 : Version 1.0 released
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# How this work :
# This little script will give you an ability to control preemptive and surprise
# battle at exact rate by using switch.
# ------------------------------------------------------------------------------
# How to use :
# Place it between material and main. Set your preemptive and surprise switch
# in the module. If preemptive switch is ON, the battle will be in a preemptive
# conditions. If surprise switch is ON, the battle will be in a surprise conditions.
# If both switches are ON or OFF, then the default preemptive and suprise rate
# will be used. It works on random encounters and event battle.
# ------------------------------------------------------------------------------
# Compatibility issues :
# I haven't get any compatibility issues actually. If you get some, let me know,
# and bug fixes will come.
# ------------------------------------------------------------------------------
# Who to credit :
# - Allah swt. : For the chance of living that he has given to me.
# - Nabi Muhammad saw. : As a leader and messenger and prophet of Muslim.
#                        I'm proud to be your follower. :)
# - Agung Prasetyo(TroyZ) : Thats me, of course, the ones that made this script. :P
# ------------------------------------------------------------------------------
# License :
# - Free Game : Just credit those two first names. My name in the credit?
# If you pleased, but if you don't, no problem, this is just a simple script actually.
# - Commercial Game : Same as free game's license.
# ------------------------------------------------------------------------------
$imported = {} if $imported.nil?
$imported[:TroyZ_PreemptiveSurpriseToggler] = true
module AGUNG
  PREEMPTIVE_SWITCH = 1 # set the preemptive switch. If ON, preemptive battle will come
  SURPRISE_SWITCH = 2 # set the surprise switch. If ON, surprise battle will come
end

module BattleManager
  def self.on_encounter
    if $game_switches[AGUNG::PREEMPTIVE_SWITCH] && $game_switches[AGUNG::PREEMPTIVE_SWITCH] != $game_switches[AGUNG::SURPRISE_SWITCH]
      @preemptive = true
    elsif $game_switches[AGUNG::SURPRISE_SWITCH] && $game_switches[AGUNG::PREEMPTIVE_SWITCH] != $game_switches[AGUNG::SURPRISE_SWITCH]
      @surprise = true
    else
      @preemptive = (rand < rate_preemptive)
      @surprise = (rand < rate_surprise && !@preemptive)
    end
  end
end