class Game_Actor < Game_Battler
  alias skill_update_system_learn_skill learn_skill
  def learn_skill(skill_id)
    if can_learn_skill?(skill_id)
      list = []
      $data_skills[skill_id].note.gsub(/<FORGET_SKILL:(\d+)>/) {
      list.push($1.to_i)
      }
      if list.size > 0
        list.each {|i| forget_skill(i)}
        p "#{skill_id}번 스킬 습득 - 스킬제거 #{list}"
      end
      skill_update_system_learn_skill(skill_id)
    end
  end
  def can_learn_skill?(skill_id)
    if skill_learn?($data_skills[skill_id])
      p "이미 배운 스킬"
      return false
    end
    list = []
    $data_skills[skill_id].note.gsub(/<REQUIRE_SKILL:(\d+)>/) {
    unless skill_learn?($data_skills[$1.to_i])
      list.push($1.to_i)
    end
    }
    if list.size > 0
      p "선행스킬 필요 #{list}"
      return false
    end
    return true
  end
end





#presented by 허걱