=begin
#===============================================================================
 Title: Dynamic Weapon Animations
 Author: Hime
 Date: Mar 23, 2014
 URL: 
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 ** Change log
 Mar 23, 2014
   - Initial release
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 ** Terms of Use
 * Free to use in non-commercial projects
 * Contact me for commercial use
 * No real support. The script is provided as-is
 * Will do bug fixes, but no compatibility patches
 * Features may be requested but no guarantees, especially if it is non-trivial
 * Credits to Hime Works in your project
 * Preserve this header
--------------------------------------------------------------------------------
 ** Description
 
 This script allows you to dynamically determine a weapon's animation.
 
 When using a skill or item, you can choose to show a "normal attack"
 animation. This will tell the engine to use the animation that you have
 selected for the weapon.
 
 However, sometimes this is not enough. You might want a single weapon to show
 different animations depending on factors such as the current state or who
 the actor is.
 
 For example, you might have a normal slash animation, but if you have an
 ice enchantment state, you might want to play an ice slash animation, and
 if you have a fire enchantment state, you might want to play a fire slash
 animation.
 
 By using dynamic weapon animations, you can use formulas to determine which
 animation will be played based on a variety of conditions.
 
--------------------------------------------------------------------------------
 ** Installation
 
 In the script editor, place this script below Materials and above Main

--------------------------------------------------------------------------------
 ** Usage 
 
 To specify an animation formula for a weapon, note-tag it with
 
   <animation formula>
     FORMULA
   </animation formula>
   
 Where the formula is any valid formula that returns the ID of the animation
 that you want to use.
 
 The following formula variables are available:
 
   a - the user
   p - game party
   t - game troop
   s - game switches
   v - game variables
   
 To use the weapon's animation, your skill or item must use "normal attack"
 animation.
 
 Remember that your formula must always return an ID. There is no default ID.
 
#===============================================================================
=end
$imported = {} if $imported.nil?
$imported[:TH_DynamicWeaponAnimations] = true
#===============================================================================
# ** Configuration
#===============================================================================
module TH
  module Dynamic_Weapon_Animations
    Ext_Regex = /<animation[-_ ]formula>(.*?)<\/animation[-_ ]formula>/im
  end
end
#===============================================================================
# ** Rest of script
#===============================================================================
module RPG
  
  class Weapon < EquipItem
    def weapon_animation_formula
      load_notetag_dynamic_weapon_animations unless @weapon_animation_formula
      return @weapon_animation_formula
    end
    
    def load_notetag_dynamic_weapon_animations
      @weapon_animation_formula = ""
      res = self.note.match(TH::Dynamic_Weapon_Animations::Ext_Regex)
      if res
        @weapon_animation_formula = res[1]
      end
    end
    
    def eval_weapon_animation(a, p=$game_party, t=$game_troop, v=$game_variables, s=$game_switches)
      eval(self.weapon_animation_formula)
    end
  end
end

class Game_Actor < Game_Battler

  #-----------------------------------------------------------------------------
  # Replaced
  #-----------------------------------------------------------------------------
  def atk_animation_id1
    if dual_wield?
      return weapons[0].eval_weapon_animation(self) if weapons[0]
      return weapons[1] ? 0 : 1
    else
      return weapons[0] ? weapons[0].eval_weapon_animation(self) : 1
    end
  end
  
  #-----------------------------------------------------------------------------
  # Replaced
  #-----------------------------------------------------------------------------
  def atk_animation_id2
    if dual_wield?
      return weapons[1] ? weapons[1].eval_weapon_animation(self) : 0
    else
      return 0
    end
  end
end