class Scene_ItemBase < Scene_MenuBase
  def item_usable?
    return false unless user.usable?(item)
    if item.id == SkillLevel::RESETITEM
      return false if item_target_actors[0].class.auto_sp
      return true
    elsif item.id == Point_Tree::RESET_ITEM and item.is_a?(RPG::Item)
      return true
    else
      item_effects_valid?
    end
  end
end

class Game_Actor < Game_Battler

  #基礎屬性的計算，添加了被動技能的提升，按默認的先加後乘
  def param(param_id)
    value = param_base(param_id) + param_plus(param_id) +
            skill_plus(param_id) + state_param_plus(param_id) + point_plus(param_id)
    value *= param_rate(param_id) * param_buff_rate(param_id) *
             skill_rate(param_id) * state_param_rate(param_id)
    [[value, param_max(param_id)].min, param_min(param_id)].max.to_i
  end



  #附加屬性xparam的計算，命中暴擊什麼的，迭代加算。
  def xparam(xparam_id)
    xp = state_xparam(xparam_id) + @skills.inject(super(xparam_id)) do |plu,skl|
      plu + SkillLevel.formula(self.skill_level(skl),$data_skills[skl].xparam(xparam_id))
    end
    for i in 0 .. POINT_KIND-1
      xp+=(@point[i+1]*POINT_ADD_XPARAM[i][xparam_id]/10000.0)
    end
    xp
  end
end