FFS - Actor Restrict Item Use

#==============================================================
#
#               RESTRICT ITEM FOR ACTOR
#
# Mit diesem Script kann man bestimmte Items für bestimmte
# Helden im Kampf nicht auswählbar machen. Man muss lediglich
# bei dem entsprechenden Item einen Notetag mit der ID des
# Helden einfügen.
#
# <restrict actor: id>
#
# Wenn man ein Item nur dann aus dem Menü heraus nutzen kann,
# wenn ein bestimmter Held in der Gruppe ist, kann man hierfür
# diesen Notetag nutzen:
#
# <needed actor: id>
#
# Falls ein Item nur auf einen bestimmten Helden genutzt werden
# kann, dann wird dieser Notetag verwendet. ID Entspricht dem
# Helden in der Datenbank:
#
# <only actor: id>
#
#==============================================================


#==============================================================
#   * Initialize BaseItems
#==============================================================
module DataManager
  class << self
    alias :load_ffs_db_ri :load_database
  end

  def self.load_database
    load_ffs_db_ri
    load_ffsri_items
  end

  def self.load_ffsri_items
    groups = [$data_items]
    for group in groups
      for obj in group
        next if obj.nil?
        obj.load_ffs_notetags_ri
      end
    end
  end
end

#==============================================================
#   * Content of Recycling Items
#==============================================================
class RPG::BaseItem
  attr_accessor :restricted_actors
  attr_accessor :needed_actors
  attr_accessor :only_actors

  def load_ffs_notetags_ri
    @restricted_actors = []
    @needed_actors = []
    @only_actors = []
    self.note.split(/[\r\n]+/).each do |line|
      # Restricts the Actor
      if line =~ /<restrict actor:([\d+,?\s*]+)>/i
        @restricted_actors.push($1.to_i)
      # Requires the Actor
      elsif line =~ /<needed actor:([\d+,?\s*]+)>/i
        @needed_actors.push($1.to_i)
      elsif line =~ /<only actor:([\d+,?\s*]+)>/i
        @only_actors.push($1.to_i)
      end
    end
  end
end

#==============================================================================
# ** Window_ItemList
#------------------------------------------------------------------------------
#  This window displays a list of party items on the item screen.
#==============================================================================
class Window_ItemList < Window_Selectable
  #--------------------------------------------------------------------------
  # * Display in Enabled State?
  #--------------------------------------------------------------------------
  alias :flip_itemList_enable :enable?
  def enable?(item)
    return true if item != nil && $game_party.members.include?(item.needed_actors)
#~     return false if item != nil && !item.restricted_actors != [] && !$game_party.members.include?(item.needed_actors)
    return flip_itemList_enable(item)
  end
end

#==============================================================================
# ** Window_BattleActor
#------------------------------------------------------------------------------
#  This window is for selecting an actor's action target on the battle screen.
#==============================================================================
class Game_BattlerBase
  #--------------------------------------------------------------------------
  # * Determine Skill/Item Usability
  #--------------------------------------------------------------------------
  alias :usable_ffs_restrict_actor :usable?
  def usable?(item)
    return false if item.is_a?(RPG::Item) && item.restricted_actors.include?(@actor_id)
    return usable_ffs_restrict_actor(item)
  end
end

#==============================================================================
# ** Game_Battler
#------------------------------------------------------------------------------
#  A battler class with methods for sprites and actions added. This class
# is used as a super class of the Game_Actor class and Game_Enemy class.
#==============================================================================
class Game_Battler < Game_BattlerBase
  #--------------------------------------------------------------------------
  # * Test Skill/Item Application
  #    Used to determine, for example, if a character is already fully healed
  #   and so cannot recover anymore.
  #--------------------------------------------------------------------------
  def item_test(user, item)
    if item.for_dead_friend?
      return hp == 0 if SceneManager.scene_is?(Scene_Item)
      return true
    end
    if item.is_a?(RPG::Item)
      return false if item.only_actors != [] && !item.only_actors.include?(self.id)
    end
    return true if $game_party.in_battle
    return true if item.for_opponent?
    return true if item.damage.recover? && item.damage.to_hp? && hp < mhp
    return true if item.damage.recover? && item.damage.to_mp? && mp < mmp
    return true if item_has_any_valid_effects?(user, item)
    return false
  end
end

#==============================================================================
# ** Window_BattleItem
#------------------------------------------------------------------------------
#  This window is for selecting items to use in the battle window.
#==============================================================================
class Window_BattleItem < Window_ItemList
  #--------------------------------------------------------------------------
  # * Include in Item List?
  #--------------------------------------------------------------------------
  def include?(item)
    return false if !item.is_a?(RPG::Item)
    return false if item != nil && (item.restricted_actors.include?(BattleManager.actor.id))
    $game_party.usable?(item)
  end
end