[XP Script] XRXS No38: Element Limitation/Correction

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

# XRXS No38. Element Limitation and Correction

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

# Written by Xiderowg (http://sboox.hp.infoseek.co.jp/xp/)

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

# * FUNCTION

#   Configures the element_correct method in Game_Battler3, 

#   which affects the method in which the elemental multiplier 

#   is calculated and applied to the battler's damage, as well 

#   as limiting the element list in the database so that 

#   'special elements' - ones that shouldn't affect the skill's 

#   damage, don't.  

#

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

module XRXS38

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

  # Establish Elements

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

  # Number of initial elements, eg. fire, ice, wind, water, etc. in the 

  # database.  This counts from the first (usually fire) to the number 

  # entered below.  In this case, only elements 1-16 are calculated.

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

  ELEMENTS_NUMBER_LIMIT = 16

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

  # Determine element correct method.

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

  # The Sahagin used in the example is weak against vsAquatic (200% dmg)

  # and absorbs Fire (-100% dmg).  

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

  # 0: ?STRONGEST (RGSS Default)

  #     Only the strongest element applies.

  #     EX:  Fire/vsAquatic vs. Sahagin => 200% dmg 

  # 1:  MULTIPLICATION

  #     All elements are included in the calculation.

  #     EX:  Fire/vsAquatic vs. Sahagin => -200% dmg

  # 2:  AVERAGE

  #     Average power of elements are used in the calculation.

  #     EX:  Fire/vsAquatic vs. Sahagin => 50% dmg

  # 3:  WEAKEST

  #     Only the weakest element applies.

  #     EX:  Fire/vsAquatic vs. Sahagin => -100% dmg

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

  ELEMENT_CORRECT_METHOD = 2

end



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

# ** Game_Battler

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

class Game_Battler

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

  # * Calculation + Element correction methods

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

  alias xrxs38_elements_correct elements_correct

  def elements_correct(element_set)

    # Initially duplicates

    elements = element_set.dup

    # Checks element restriction and if it exceeds the limit

    for element_id in element_set

      if element_id >XRXS38:: ELEMENTS_NUMBER_LIMIT

        elements.delete(element_id)

      end

    end

    # If it is not an element, return 100

    return 100 if elements.size == 0

    #

    case XRXS38::ELEMENT_CORRECT_METHOD

    when 0 # Strongest

      return xrxs38_elements_correct(elements)

    when 1 # Multiplication

      result = 100.0

      minus_enable = false

      for i in elements

        n = self.element_rate(i)

        minus_enable |= (n < 0)

        result *= n / 100.0

      end

      result = -1 * result.abs if minus_enable 

      return result.to_i

    when 2 # Average

      rates = []

      result = 0

      for i in elements

        rates.push(self.element_rate(i))

      end

      for rate in rates

        result += rate

      end

      return result / rates.size

    when 3 # Weakest

      for i in elements

        n = self.element_rate(i)

        result = n if result.nil? or result > n

      end

      return result

    end

  end

end