[XP Script] Problem with drain script form the ATOA ACBS

Code:
#==============================================================================

# Skill Drain

# By Atoa

#==============================================================================

# This script allow to create skills and equips that adds the effect 'drain'

# of HP and SP.

# That way attacks and skills can absorb part of the damage caused

#==============================================================================

 

module Atoa

  # Do not remove this line

  Drain_Action = {'Skill' => {}, 'Weapon' => {}, 'Item' => {}}

  # Do not remove this line

 

  # Drain_Action[action_type][id] = {drain_type => [success, rate, anim_id, pop, show_excedent],...}

  # action_type = action type

  #   action_type = 'Skill' for skills, 'Weapon' for weapons, 'Item' for items

  # id = ID of the skill/weapon/item

  # drain_type = drain type

  #   'hp' for HP drain, 'sp' for SP drain

  # success = absorb success rate

  # rate = % of damage converted in HP/SP

  # anim_id = ID of the animation shown when absorb HP/SP, leave nil or 0 for

  #   no animation

  #

 

  Drain_Action['Skill'][116] = {'hp' => [100, 50, nil, true, false],

                                'sp' =>[100, 50, 18, true, false]}

 

  Drain_Action['Weapon'][43] = {'hp' => [50, 50, nil, true, true]}

 

 

end

 

#==============================================================================

# ■ Atoa Module

#==============================================================================

$atoa_script = {} if $atoa_script.nil?

$atoa_script['Atoa Drain'] = true

 

#==============================================================================

# ■ Game_Battler

#------------------------------------------------------------------------------

# Esta classe gerencia os jogadores da batalha.

# Esta classe identifica os Aliados ou Heróis como (Game_Actor) e

# os Inimigos como (Game_Enemy).

#==============================================================================

 

class Game_Battler

  #--------------------------------------------------------------------------

  # Variáveis Públicas

  #--------------------------------------------------------------------------

  attr_accessor :base_absorb

  #--------------------------------------------------------------------------

  # Inicialização do Objeto

  #--------------------------------------------------------------------------

  alias initialize_drain initialize

  def initialize

    initialize_drain

    @base_absorb = 0

  end

end

 

#==============================================================================

# ■ Scene_Battle

#------------------------------------------------------------------------------

# Esta classe processa a tela de Batalha

#==============================================================================

 

class Scene_Battle

  #--------------------------------------------------------------------------

  # Atualização da fase 4 do personagem (parte 1)

  #     battler : Battler ativo

  #--------------------------------------------------------------------------

  alias step4_part1_drain step4_part1

  def step4_part1(battler)

    step4_part1_drain(battler)

    set_drain_damage(battler)

  end

  #--------------------------------------------------------------------------

  # Atualização da fase 4 do personagem (parte 3)

  #     battler : Battler ativo

  #--------------------------------------------------------------------------

  alias step4_part3_drain step4_part3

  def step4_part3(battler)

    step4_part3_drain(battler)

    action = battler.now_action

    if action != nil and Drain_Action[action.type_name] != nil and

       Drain_Action[action.type_name].include?(action_id(action))

      absorb_damage(battler, battler.base_absorb, Drain_Action[action.type_name][action_id(action)].dup)

    end

  end

  #--------------------------------------------------------------------------

  # Definir dano do dreno

  #     battler : Battler ativo

  #--------------------------------------------------------------------------

  def set_drain_damage(battler)

    battler.base_absorb = 0

    for target in battler.target_battlers

      battler.base_absorb += target.damage if target.damage.numeric?

    end

  end

  #--------------------------------------------------------------------------

  # Absover dano

  #     battler : Battler ativo

  #     absorb  : valor de absorção

  #     action  : Ação

  #--------------------------------------------------------------------------

  def absorb_damage(battler, absorb, action)

    for type in action.keys

      if type == 'hp' and (action[type][0] >= rand(100))

        base_absorb = ((absorb * action[type][1]) / 100).to_i

        if base_absorb > 0

          difference = battler.maxhp - battler.hp

          base_absorb = [base_absorb, difference].min

        elsif base_absorb < 0

          base_absorb = [base_absorb, - battler.hp].max

        end

        if base_absorb != 0

          battler.damage = - base_absorb

          battler.hp -= battler.damage

          battler.animation_id = action[type][2].nil? ? 0 : action[type][2]

          battler.damage_pop = action[type][3]

          wait(3) if battler.damage != 0

        end

      end

      if type == 'sp' and (action[type][0] >= rand(100))

        base_absorb = ((absorb * action[type][1]) / 100).to_i

        if base_absorb > 0

          difference = battler.maxsp - battler.sp

          base_absorb = [base_absorb, difference].min

        elsif base_absorb < 0

          base_absorb = [base_absorb, - battler.sp].max

        end

        if base_absorb != 0

          battler.damage = - base_absorb

          battler.sp -= battler.damage

          battler.animation_id = action[type][2].nil? ? 0 : action[type][2]

          battler.damage_pop = action[type][3]

          battler.sp_damage = action[type][3]

          wait(3) if battler.damage != 0

        end

      end

    end

  end

end