the ratbs alpha + YF Random Skill Invoke Compatibility

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# * Random Skill Invoke Compatibility
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# Author: Eshra
# Compatibility: RPG Maker VX Ace
# Dependencies: raTBS-Alpha
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# Usage:
#
# Paste this below the other TBS Classes and Modules. This snippet allows some
# compatibility with the script found here:
# http://yanflychannel.wordpress.com/rmvxa/gameplay-scripts/random-skill-invoke/
#
# Updates:
# 14 April 2013 - Init Release
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module Era
  module AI
    def self.invoke_on_target(target_ev, user_ev, tb_item, prev = false)

      # add conditionals to support friendly hits on or off
      return false if target_ev.nil? || target_ev.tb_unit.nil? # or if the target is not an tb_unit.
      return false if (target = target_ev.tb_unit.battler).nil?

      user = user_ev.tb_unit.battler

      # Try to use the skill on the target...

      if tb_item.is_a?(RPG::Skill)
        user.tb_set_action(Game_Action.new(user).set_skill(tb_item.id))
      elsif tb_item.is_a?(RPG::Item)
        user.tb_set_action(Game_Action.new(user).set_item(tb_item.id))
      end

      user.invoke_random_skill
      tb_item = item = user.current_action.item

      if user.actions[0].valid?

        item = user.current_action.item
        if prev
          target = Marshal.load(Marshal.dump(target))
          user = Marshal.load(Marshal.dump(user))
        else
          temp = target_ev.animation_id = item.animation_id
          target_ev.animation_id = 1 if temp < 0 # default basic attack
        end

        result = target.item_apply(user, item) # @subject.invoke_random_skill

        return sar_brief(result, user_ev, target, target_ev, tb_item, prev)
      else; return false
      end
    end # invoke_on_target
  end
end