[RGSS] XAS - Respawn Control

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# XAS - Respawn Control
# Version: 1.00
# Author : LiTTleDRAgo
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#==============================================================================
# ** Game_Map
#------------------------------------------------------------------------------
#  This class handles the map. It includes scrolling and passable determining
#  functions. Refer to "$game_map" for the instance of this class.
#==============================================================================
class Game_Map

  RESPAWN_MAP_LIMIT = 3
  # After go to other maps X times, enemies in the oldest map will respawn

  alias respawn_control_setup setup
  def setup(*args)
    respawn_control_setup(*args)
    e = $game_temp.instance_variable_get(:@e3x504)
    e = $game_temp.instance_variable_set(:@e3x504,Hash.new{|h,k|h[k]=[]}) if !e
    @events.values.each {|event| event.erase if e[@map_id].include?(event.id)}
    $game_temp.instance_variable_get(:@e3x504).shift if e.size>RESPAWN_MAP_LIMIT
  end
end
#==============================================================================
# ** Game_Event
#------------------------------------------------------------------------------
#  This class deals with events. It handles functions including event page
#  switching via condition determinants, and running parallel process events.
#  It's used within the Game_Map class.
#==============================================================================
class Game_Event < Game_Character
  #--------------------------------------------------------------------------
  # ● Defeated Effect
  #--------------------------------------------------------------------------
  alias defeated_respawn_control_effect defeated_effect
  def defeated_effect
    defeated_respawn_control_effect
    return if !self.battler.is_a?(Game_Enemy)
    unless self.tool_id > 0 or self.battler.e_item
      $game_temp.instance_variable_get(:@e3x504)[$game_map.map_id] << @id
    end
  end
end