출처 : KMS

http://ytomy.sakura.ne.jp/tkool/rpgtech/php/tech.php?tool=VXAce&cat=tech_vxace/skill&tech=skill_level

스킬마다 숙련도를 적용할 수 있게 해주는 스크립트입니다. 좋아보여서 퍼왔습니다.

일단 스크립트 원문부터

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#_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
#_/    ◆ 스킬 숙련도 - KMS_SkillLevel ◆ VX Ace ◆
#_/    ◇ Last update : 2012/02/12 (TOMY@Kamesoft) ◇
#_/----------------------------------------------------------------------------
#_/  스킬에 숙련도의 개념을 추가합니다.
#_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/

#==============================================================================
# ★ 설정 항목 - BEGIN Setting ★
#==============================================================================

module KMS_SkillLevel
  # ◆ 숙련도 상한
  EXP_MAX = 999

  # ◆ 적에게도 숙련도를 적용한다
  ENABLE_FOR_ENEMY = false
  # ◆ 메뉴 화면에서 사용했을 경우도 숙련도를 올린다
  ENABLE_ON_MENU   = false
end

#==============================================================================
# ☆ 설정 여기까지 - END Setting ☆
#==============================================================================

$kms_imported = {} if $kms_imported == nil
$kms_imported["SkillLevel"] = true

module KMS_SkillLevel
  # 디버그 플래그
  DEBUG = false

  # 숙련도 증가량
  #  기술예 : <숙련도 증가량 2>
  REGEX_SXP_GAIN = /<(?:숙련도 증가량|SXP_GAIN)\s*(\d+)>/i

  # 숙련도 보정
  REGEX_REV = /(?:숙련도 보정|SXP_REV)\s*/i

  # 행동 속도 보정
  #  기술예 : <숙련도 보정 속도 sxp / 50>
  REGEX_SPEED_REV = /<#{REGEX_REV}(?:속도|SPEED)\s+(.+)>/i

  # 성공율 보정
  #  기술예 : <숙련도 보정 성공율 sxp / 50>
  REGEX_SUCCESS_REV = /<#{REGEX_REV}(?:성공율|SUCCESS)\s+(.+)>/i

  # 숙련도용 제어 문자
  #  \SXP / \SXP[actor_id,skill_id] / \SXP[skill_id]
  #  \S 하지만 정의가 끝난 상태라면 미스가능성이 있으므로 \_SXP 에도 대응
  REGEX_TEXT_SXP      = /\e_?SXP\[(\d+)\s*,\s*(\d+)]/i
  REGEX_TEXT_SXP_HELP = /\e_?SXP(?:\[(\d+)\])?/i
end

# *****************************************************************************

#==============================================================================
# □ KMS_Commands
#==============================================================================

module KMS_Commands
  module_function
  #--------------------------------------------------------------------------
  # ○ 액터의 숙련도의 증감
  #--------------------------------------------------------------------------
  def gain_actor_skill_exp(actor_id, skill_id, n)
    return if $game_actors[actor_id].nil?
    $game_actors[actor_id].gain_skill_exp(skill_id, n)
  end
  #--------------------------------------------------------------------------
  # ○ 액터의 숙련도를 클리어
  #--------------------------------------------------------------------------
  def clear_actor_skill_exp(actor_id)
    return if $game_actors[actor_id].nil?
    $game_actors[actor_id].clear_skill_exp
  end
end

#==============================================================================
# ■ Game_Interpreter
#==============================================================================

class Game_Interpreter
  # 이벤트 커멘드로부터 직접 커멘드를 두드릴 수 있도록(듯이) 한다
  include KMS_Commands
end

#==============================================================================
# ■ RPG::Skill
#==============================================================================

class RPG::Skill < RPG::UsableItem
  #--------------------------------------------------------------------------
  # ○ 숙련도 캐쉬 작성
  #--------------------------------------------------------------------------
  def __create_skill_level_cache
    @__skill_exp_gain = 1
    @__speed_rev_by_skill_exp_formula   = "0"
    @__success_rev_by_skill_exp_formula = "0"

    note.each_line { |line|
      case line
      when KMS_SkillLevel::REGEX_SXP_GAIN
        @__skill_exp_gain = $1.to_i
      when KMS_SkillLevel::REGEX_SPEED_REV
        @__speed_rev_by_skill_exp_formula = $1
        print "Speed rev[#{id}]: #{$1}\n" if KMS_SkillLevel::DEBUG
      when KMS_SkillLevel::REGEX_SUCCESS_REV
        @__success_rev_by_skill_exp_formula = $1
        print "Success rev[#{id}]: #{$1}\n" if KMS_SkillLevel::DEBUG
      end
    }
  end
  protected :__create_skill_level_cache
  #--------------------------------------------------------------------------
  # ○ 숙련도 증가량 취득
  #--------------------------------------------------------------------------
  def skill_exp_gain
    __create_skill_level_cache if @__skill_exp_gain.nil?
    return @__skill_exp_gain
  end
  #--------------------------------------------------------------------------
  # ○ 행동 속도 보정 취득
  #--------------------------------------------------------------------------
  def speed_rev_by_skill_exp_formula
    __create_skill_level_cache if @__speed_rev_by_skill_exp_formula.nil?
    return @__speed_rev_by_skill_exp_formula
  end
  #--------------------------------------------------------------------------
  # ○ 성공율 보정 취득
  #--------------------------------------------------------------------------
  def success_rev_by_skill_exp_formula
    __create_skill_level_cache if @__success_rev_by_skill_exp_formula.nil?
    return @__success_rev_by_skill_exp_formula
  end
end

#==============================================================================
# ■ Game_Action
#==============================================================================

class Game_Action
  #--------------------------------------------------------------------------
  # ● 행동 속도의 계산
  #--------------------------------------------------------------------------
  alias speed_KMS_SkillLevel speed
  def speed
    n  = speed_KMS_SkillLevel

    # 속도 보정의 적용
    n += subject.speed_rev_by_skill_exp(item) if item

    return n
  end
end

#==============================================================================
# ■ Game_BattlerBase
#==============================================================================

class Game_BattlerBase
  #--------------------------------------------------------------------------
  # ● 오브젝트 초기화
  #--------------------------------------------------------------------------
  alias initialize_KMS_SkillLevel initialize
  def initialize
    initialize_KMS_SkillLevel

    @skill_exp = {}
  end
  #--------------------------------------------------------------------------
  # ○ 스킬 숙련도의 취득
  #--------------------------------------------------------------------------
  def skill_exp(skill_id)
    @skill_exp = {}          if @skill_exp.nil?
    @skill_exp[skill_id] = 0 unless @skill_exp.include?(skill_id)

    return @skill_exp[skill_id]
  end
  #--------------------------------------------------------------------------
  # ○ 스킬 숙련도의 가산
  #--------------------------------------------------------------------------
  def gain_skill_exp(skill_id, n = 1)
    # 기본 액션은 가산하지 않는다
    return if skill_id == attack_skill_id || skill_id == guard_skill_id

    lv = skill_exp(skill_id)
    @skill_exp[skill_id] = [ [lv + n, 0 ].max, KMS_SkillLevel::EXP_MAX ].min

    if KMS_SkillLevel::DEBUG
      print "#{name} 숙련도 [#{skill_id}] = #{@skill_exp[skill_id]}\n"
    end
  end
  #--------------------------------------------------------------------------
  # ○ 스킬 숙련도의 초기화
  #--------------------------------------------------------------------------
  def clear_skill_exp
    @skill_exp = {}
  end
  #--------------------------------------------------------------------------
  # ○ 현재의 액션의 숙련도를 취득
  #     skill_id : 대상 스킬 ID (생략시는 현재의 행동)
  #--------------------------------------------------------------------------
  def sxp(skill_id = 0)
    if skill_id > 0
      return skill_exp(skill_id)
    else
      return current_skill_exp
    end
  end
  #--------------------------------------------------------------------------
  # ○ 스킬 숙련도에 의한 행동 속도 보정을 취득
  #     item : 대상 행동
  #--------------------------------------------------------------------------
  def speed_rev_by_skill_exp(item)
    return 0 unless item.is_a?(RPG::Skill)

    formula = item.speed_rev_by_skill_exp_formula
    formula = formula.gsub(/sxp/i) { "skill_exp(item.id)" }
    return eval(formula)
  end
  #--------------------------------------------------------------------------
  # ○ 스킬 숙련도에 의한 성공율 보정을 취득
  #     item : 대상 행동
  #--------------------------------------------------------------------------
  def success_rev_by_skill_exp(item)
    return 0 unless item.is_a?(RPG::Skill)

    formula = item.success_rev_by_skill_exp_formula
    formula = formula.gsub(/sxp/i) { "skill_exp(item.id)" }
    return eval(formula)
  end
end

#==============================================================================
# ■ Game_Battler
#==============================================================================

class Game_Battler < Game_BattlerBase
  #--------------------------------------------------------------------------
  # ○ 현재의 행동의 스킬 숙련도를 취득
  #--------------------------------------------------------------------------
  def current_skill_exp
    if current_action.item && current_action.item.is_a?(RPG::Skill)
      return skill_exp(current_action.item.id)
    else
      return 0
    end
  end
  #--------------------------------------------------------------------------
  # ○ 스킬 숙련도 가산 처리
  #--------------------------------------------------------------------------
  def gain_skill_exp_effect(item)
    return unless item.is_a?(RPG::Skill)

    if $game_party.in_battle || KMS_SkillLevel::ENABLE_ON_MENU
      gain_skill_exp(item.id, item.skill_exp_gain)
    end
  end
  #--------------------------------------------------------------------------
  # ● 스킬/아이템의 사용
  #    행동 측에 대해 불려 가 사용 대상 이외에 대하는 효과를 적용한다.
  #--------------------------------------------------------------------------
  alias use_item_KMS_SkillLevel use_item
  def use_item(item)
    use_item_KMS_SkillLevel(item)

    gain_skill_exp_effect(item)
  end
  #--------------------------------------------------------------------------
  # ● 스킬/아이템의 명중율 계산
  #--------------------------------------------------------------------------
  alias item_hit_KMS_SkillLevel item_hit
  def item_hit(user, item)
    # 숙련도에 의한 성공율 보정치를 가산
    rate_rev  = user.success_rev_by_skill_exp(item) * 0.01
    rate_rev *= user.hit if item.physical?

    return item_hit_KMS_SkillLevel(user, item) + rate_rev
  end
end

#==============================================================================
# ■ Game_Enemy
#==============================================================================

class Game_Enemy < Game_Battler
  #--------------------------------------------------------------------------
  # ○ 스킬 숙련도의 가산
  #--------------------------------------------------------------------------
  def gain_skill_exp(skill_id, n = 1)
    # 아무것도 하지 않는다
  end
end unless KMS_SkillLevel::ENABLE_FOR_ENEMY

#==============================================================================
# ■ Window_Base
#==============================================================================

class Window_Base < Window
  #--------------------------------------------------------------------------
  # ● 제어 문자의 사전 변환
  #--------------------------------------------------------------------------
  alias convert_escape_characters_KMS_SkillLevel convert_escape_characters
  def convert_escape_characters(text)
    result = convert_escape_characters_KMS_SkillLevel(text).clone

    result.gsub!(KMS_SkillLevel::REGEX_TEXT_SXP) {
      actor = $game_actors[$1.to_i]
      if actor
        actor.skill_exp($2.to_i)
      else
        ""
      end
    }
    return result
  end
end

#==============================================================================
# ■ Window_Help
#==============================================================================

class Window_Help < Window_Base
  #--------------------------------------------------------------------------
  # ● 아이템 설정
  #     item : 스킬, 아이템등
  #--------------------------------------------------------------------------
  alias set_item_KMS_SkillLevel set_item
  def set_item(item)
    @current_item = item

    set_item_KMS_SkillLevel(item)
  end
  #--------------------------------------------------------------------------
  # ○ 액터의 설정
  #--------------------------------------------------------------------------
  def set_actor(actor)
    @current_actor = actor
  end
  #--------------------------------------------------------------------------
  # ● 제어 문자의 사전 변환
  #--------------------------------------------------------------------------
  unless method_defined?(:convert_escape_characters_KMS_SkillLevel)
    alias convert_escape_characters_KMS_SkillLevel convert_escape_characters
  end
  def convert_escape_characters(text)
    result = convert_escape_characters_KMS_SkillLevel(text).clone

    result.gsub!(KMS_SkillLevel::REGEX_TEXT_SXP_HELP) {
      if @current_actor
        if $1.nil? && @current_item.is_a?(RPG::Skill)
          # 현재의 스킬
          @current_actor.skill_exp(@current_item.id)
        else
          # ID 지정
          @current_actor.skill_exp($1.to_i)
        end
      else
        ""
      end
    }
    return result
  end
end

#==============================================================================
# ■ Window_SkillList
#==============================================================================

class Window_SkillList < Window_Selectable
  #--------------------------------------------------------------------------
  # ● 헬프 텍스트 갱신
  #--------------------------------------------------------------------------
  alias update_help_KMS_SkillLevel update_help
  def update_help
    @help_window.set_actor(@actor)

    update_help_KMS_SkillLevel

    @help_window.set_actor(nil)
  end
end

#==============================================================================
# ■ Scene_Skill
#==============================================================================

class Scene_Skill < Scene_ItemBase
  #--------------------------------------------------------------------------
  # ● 아이템의 사용
  #--------------------------------------------------------------------------
  alias use_item_KMS_SkillLevel use_item
  def use_item
    use_item_KMS_SkillLevel

    @help_window.set_actor(@actor)
    @help_window.refresh
    @help_window.set_actor(nil)
  end
end

#==============================================================================
# ■ Scene_Battle
#==============================================================================

class Scene_Battle < Scene_Base
  #--------------------------------------------------------------------------
  # ● 커멘드［스킬］
  #--------------------------------------------------------------------------
  alias command_skill_KMS_SkillLevel command_skill
  def command_skill
    @help_window.clear

    command_skill_KMS_SkillLevel
  end
end
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