Continue BGM after battle ~ RGSS2

#=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
#             Continue BGM after battle
#             Author: DiamondandPlatinum3
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#  Description:
#
#    Activated via an event switch, this script will allow you to continue
#    to play your battle bgm once your battle has finished. Maybe you're
#    in a war zone and need to keep the Battle bgm going to continue the
#    atmosphere?
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~



class Scene_Battle
 #////////////////////////////////////////////////////////////


  # Event Switch ID to make the battle bgm continue into map
  BATTLE_BGM_CIM_EVENT_SWITCH_ID = 11


 #////////////////////////////////////////////////////////////









  #--------------------------------------------------------------------------
  # * Victory Processing
  #--------------------------------------------------------------------------
  alias battlebgm_cim_unchange_processvictory_on4972 process_victory
  def process_victory
    if $game_switches[BATTLE_BGM_CIM_EVENT_SWITCH_ID]
      @info_viewport.visible = false
      @message_window.visible = true
      $game_system.battle_end_me.play
      display_exp_and_gold
      display_drop_items
      display_level_up
      battle_end(0)
    else
      battlebgm_cim_unchange_processvictory_on4972
    end
  end

  #--------------------------------------------------------------------------
  # * End Battle
  #      result : Results (0: win, 1: escape, 2:lose)
  #--------------------------------------------------------------------------
  alias battlebgm_cim_unchange_battleend_on4972 battle_end
  def battle_end(result)
    if $game_switches[BATTLE_BGM_CIM_EVENT_SWITCH_ID]
      if result == 2 and not $game_troop.can_lose
            call_gameover
      else
            $game_party.clear_actions
            $game_party.remove_states_battle
            $game_troop.clear
            if $game_temp.battle_proc != nil
              $game_temp.battle_proc.call(result)
              $game_temp.battle_proc = nil
            end
            $scene = Scene_Map.new
            @message_window.clear
            Graphics.fadeout(30)
      end
      $game_temp.in_battle = false
    else
      battlebgm_cim_unchange_battleend_on4972(result)
    end
  end
end