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#_/    ﹣ MP 廒犐侞謾 - KGC_MPCostAlter ﹣ VX ﹣
#_/    ﹢ Last update : 2008/02/06 ﹢
#_/----------------------------------------------------------------------------
#_/  ??羌廒犐 MP 邵簋僝疚虱悁窆邵爝吤疝芽疚﹝
#_/============================================================================
#_/  姚後?姜鷊狀牧物疝炊縶╪肢﹜郙檓糔鷍邵儦婧疝穹狗社玥炊﹝
#_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/

#==============================================================================
# ≠ 垂姘姪徊咫姿减棎 ≠
#==============================================================================

module KGC
module MPCostAlter
  # ﹣ 廒犐涖 HP 0 栛呇
  #  true  : HP 廒犐涖羋祀芰爬罔 0 羋羌虱縶╪竺芬畷樾呇窆
  #  false : HP 廒犐涖羋 1 鴗葞?虱?䬷竺羌玩初肱畷樾嫄呇
  PERMIT_ZERO_HP = false
  # ﹣ HP 廒犐薴恒刋蘤
  #  true  : HP 嫄謻肥縶╪竺芬畷樾呇窆﹝直肥縶╪﹜畷樾涖肢??嫄窆羋羌虱﹝
  #  false : HP 嫄謻肥縶╪肢畷樾嫄呇窆﹝(蠯菙)
  RELEASE_HP_LIMIT = false
end
end

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$imported = {} if $imported == nil
$imported["MPCostAlter"] = true

module KGC::MPCostAlter
  # 櫆衩礹玧
  module Regexp
    # 姘垠恨
    module Skill
      # HP 廒犐
      CONSUME_HP = /<(?:CONSUME_HP|HP廒犐)>/i
      # MP 嫺╪廒犐
      MP_COST_RATE = /<(MAX)?(?:MP_COST_RATE|MP嫺╪廒犐)>/i
      # 廒犐 MP 楑秷姚後?姜
      MP_PROPORTIONAL_DAMAGE =
        /<(?:MP_PROPORTIONAL_DAMAGE|廒犐MP楑秷姚後?姜)>/i
    end
  end
end

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#==============================================================================
# ﹥ RPG::Skill
#==============================================================================

class RPG::Skill < RPG::UsableItem
  #--------------------------------------------------------------------------
  # ∞ MP 廒犐侞謾肥垠怒姻奐怠邵蛺僝
  #--------------------------------------------------------------------------
  def create_mp_cost_alter_cache
    @__consume_hp = false
    @__mp_cost_rate = false
    @__max_mp_cost_rate = false
    @__mp_proportional_damage = false

    self.note.split(/[\r\n]+/).each { |prop|
      case prop
      when KGC::MPCostAlter::Regexp::Skill::CONSUME_HP
        # HP 廒犐
        @__consume_hp = true
      when KGC::MPCostAlter::Regexp::Skill::MP_COST_RATE
        # MP 嫺╪廒犐
        @__mp_cost_rate = true
        @__max_mp_cost_rate = ($1 != nil)
      when KGC::MPCostAlter::Regexp::Skill::MP_PROPORTIONAL_DAMAGE
        # 廒犐 MP 楑秷姚後?姜
        @__mp_proportional_damage = true
      end
    }
  end
  #--------------------------------------------------------------------------
  # ∞ HP 廒犐
  #--------------------------------------------------------------------------
  def consume_hp
    create_mp_cost_alter_cache if @__consume_hp == nil
    return @__consume_hp
  end
  #--------------------------------------------------------------------------
  # ∞ 廒犐 MP 嫺╪
  #--------------------------------------------------------------------------
  def mp_cost_rate
    create_mp_cost_alter_cache if @__mp_cost_rate == nil
    return (@__mp_cost_rate ? self.mp_cost : -1)
  end
  #--------------------------------------------------------------------------
  # ∞ MaxMP 嫺╪廒犐
  #--------------------------------------------------------------------------
  def max_mp_cost_rate
    create_mp_cost_alter_cache if @__max_mp_cost_rate == nil
    return @__max_mp_cost_rate
  end
  #--------------------------------------------------------------------------
  # ∞ 廒犐 MP 楑秷姚後?姜
  #--------------------------------------------------------------------------
  def mp_proportional_damage
    create_mp_cost_alter_cache if @__mp_proportional_damage == nil
    return @__mp_proportional_damage
  end
end

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#==============================================================================
# ﹥ Game_Battler
#==============================================================================

class Game_Battler
  #--------------------------------------------------------------------------
  # ≒ 俖刳咫扁姘姪扁姘??
  #--------------------------------------------------------------------------
  attr_reader   :spend_cost               # 廒犐疝矽 HP/MP
  #--------------------------------------------------------------------------
  # ≒ 囿庠姜咩垢客鐖悢廐
  #--------------------------------------------------------------------------
  alias initialize_KGC_MPCostAlter initialize
  def initialize
    initialize_KGC_MPCostAlter

    @spend_cost = 0
  end
  #--------------------------------------------------------------------------
  # ≒ 姘垠恨肥廒犐 MP 耵蓱
  #     skill : 姘垠恨
  #--------------------------------------------------------------------------
  alias calc_mp_cost_KGC_MPCostAlter calc_mp_cost
  def calc_mp_cost(skill)
    return 0 if skill.consume_hp  # HP 廒犐

    if skill.mp_cost_rate < 0                     # 嫺╪廒犐竺羌炊
      return calc_mp_cost_KGC_MPCostAlter(skill)
    end

    if skill.max_mp_cost_rate                    # MaxMP 嫺╪廒犐
      return calc_skill_cost_rate(skill, maxmp)
    else                                         # MP 嫺╪廒犐
      return calc_skill_cost_rate(skill, mp)
    end
  end
  #--------------------------------------------------------------------------
  # ∞ 姘垠恨肥嫺╪廒犐涫耵蓱
  #     skill : 姘垠恨
  #     base  : 哢麎鷊
  #--------------------------------------------------------------------------
  def calc_skill_cost_rate(skill, base)
    return base * skill.mp_cost_rate / 100
  end
  #--------------------------------------------------------------------------
  # ∞ 姘垠恨肥廒犐 HP 耵蓱
  #     skill : 姘垠恨
  #--------------------------------------------------------------------------
  def calc_hp_cost(skill)
    return 0 unless skill.consume_hp  # HP 廒犐竺羌炊

    if skill.mp_cost_rate < 0         # 嫺╪廒犐竺羌炊
      return skill.mp_cost
    end

    if skill.max_mp_cost_rate                    # MaxHP 嫺╪廒犐
      return calc_skill_cost_rate(skill, maxhp)
    else                                         # HP 嫺╪廒犐
      return calc_skill_cost_rate(skill, hp)
    end
  end
  #--------------------------------------------------------------------------
  # ∞ 廒犐疚舍狎 HP/MP 涫邵僋禰
  #     skill : 姘垠恨
  #--------------------------------------------------------------------------
  def set_spend_cost(skill)
    @spend_cost = [calc_hp_cost(skill), calc_mp_cost(skill)].max
  end
  #--------------------------------------------------------------------------
  # ≒ 姘垠恨肥畷樾呇窆蠰攄
  #     skill : 姘垠恨
  #--------------------------------------------------------------------------
  alias skill_can_use_KGC_MPCostAlter? skill_can_use?
  def skill_can_use?(skill)
    return false unless skill.is_a?(RPG::Skill)         # 姘垠恨竺羌炊
    return false unless mp_cost_restrict_clear?(skill)  # MP 薴恒蹐?
    return false unless hp_cost_restrict_clear?(skill)  # HP 薴恒蹐?

    return skill_can_use_KGC_MPCostAlter?(skill)
  end
  #--------------------------------------------------------------------------
  # ∞ MP 薴恒垢恰哈蠰攄
  #     skill : 姘垠恨
  #--------------------------------------------------------------------------
  def mp_cost_restrict_clear?(skill)
    return true if skill.consume_hp  # HP 廒犐

    # 嫺╪廒犐肥縶╪肢﹜廒犐涫狀 1 鴗葞竺羌炊糾畷樾嫄呇
    if skill.mp_cost_rate >= 0
      return false if calc_mp_cost(skill) == 0
    end

    return calc_mp_cost(skill) <= mp
  end
  #--------------------------------------------------------------------------
  # ∞ HP 薴恒垢恰哈蠰攄
  #     skill : 姘垠恨
  #--------------------------------------------------------------------------
  def hp_cost_restrict_clear?(skill)
    return true unless skill.consume_hp  # MP 廒犐

    # 嫺╪廒犐肥縶╪肢﹜廒犐涫狀 1 鴗葞竺羌炊糾畷樾嫄呇
    if skill.mp_cost_rate >= 0
      return false if calc_hp_cost(skill) == 0
    end

    if KGC::MPCostAlter::RELEASE_HP_LIMIT
      # 薴恒刋蘤肥縶╪肢畷樾呇窆
      return true
    elsif KGC::MPCostAlter::PERMIT_ZERO_HP
      # HP 糾婞涫芽竺廒犐呇窆
      return calc_hp_cost(skill) <= hp
    else
      # 1 鴗葞?虱饡撽炎虎
      return calc_hp_cost(skill) < hp
    end
  end
  #--------------------------------------------------------------------------
  # ≒ 姘垠恨芽矽肢哈咫宦徇羋芾虱姚後?姜耵蓱
  #     user : 姘垠恨芽矽肢哈咫宦徇肥畷樾簅
  #     obj  : 姘垠恨芽矽肢哈咫宦徇
  #    抰咥肢 @hp_damage 芽矽肢 @mp_damage 羋衴檓疚虱﹝
  #--------------------------------------------------------------------------
  alias make_obj_damage_value_KGC_MPCostAlter make_obj_damage_value
  def make_obj_damage_value(user, obj)
    # 廒犐 MP 楑秷姚後?姜竺羌炊縶╪
    unless obj.is_a?(RPG::Skill) && obj.mp_proportional_damage
      # 磢肥耵蓱蒰邵畷樾
      make_obj_damage_value_KGC_MPCostAlter(user, obj)
      return
    end

    damage = user.spend_cost * obj.base_damage / 100  # 哢塓姚後?姜蓱蘦

    damage *= elements_max_rate(obj.element_set)    # ?僛摷櫆
    damage /= 100
    damage = apply_variance(damage, obj.variance)   # 暐艉
    damage = apply_guard(damage)                    # 衖樧摷櫆
    if obj.damage_to_mp  
      @mp_damage = damage                           # MP 羋姚後?姜
    else
      @hp_damage = damage                           # HP 羋姚後?姜
    end
  end
end

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#==============================================================================
# ﹥ Window_Skill
#==============================================================================

class Window_Skill < Window_Selectable
  #--------------------------------------------------------------------------
  # ≒ 减棎肥欹?
  #     index : 减棎詌?
  #--------------------------------------------------------------------------
  def draw_item(index)
    rect = item_rect(index)
    self.contents.clear_rect(rect)
    skill = @data[index]
    if skill != nil
      rect.width -= 4
      enabled = @actor.skill_can_use?(skill)
      draw_item_name(skill, rect.x, rect.y, enabled)

      if skill.consume_hp
        # HP 廒犐
        text = sprintf("%s%d", Vocab.hp_a, @actor.calc_hp_cost(skill))
      else
        # MP 廒犐
        text = @actor.calc_mp_cost(skill).to_s
      end
      self.contents.draw_text(rect, text, 2)
    end
  end
end

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#==============================================================================
# ﹥ Scene_Skill
#==============================================================================

class Scene_Skill < Scene_Base
  #--------------------------------------------------------------------------
  # ≒ 姪?垓姻客肥抻攄
  #    ?咥羌疝肥縶╪ (??嫄窆羋待?奐怎扁羌罔) 庠奎? SE 邵歶騑﹝
  #--------------------------------------------------------------------------
  alias determine_target_KGC_MPCostAlter determine_target
  def determine_target
    @actor.set_spend_cost(@skill)  # 廒犐疚虱 HP/MP 邵姣姻客

    determine_target_KGC_MPCostAlter
  end
  #--------------------------------------------------------------------------
  # ≒ 姘垠恨肥畷樾 (瓻菾?葨鴗魤肥畷樾?咥邵鍧樾)
  #--------------------------------------------------------------------------
  alias use_skill_nontarget_KGC_MPCostAlter use_skill_nontarget
  def use_skill_nontarget
    @actor.hp -= @actor.calc_hp_cost(@skill)

    use_skill_nontarget_KGC_MPCostAlter
  end
end

#≠≧≠≧≠≧≠≧≠≧≠≧≠≧≠≧≠≧≠≧≠≧≠≧≠≧≠≧≠≧≠≧≠≧≠≧≠≧≠

#==============================================================================
# ﹥ Scene_Battle
#==============================================================================

class Scene_Battle < Scene_Base
  #--------------------------------------------------------------------------
  # ≒ ??𦬓婧肥?𦬓 : 姘垠恨
  #--------------------------------------------------------------------------
  alias execute_action_skill_KGC_MPCostAlter execute_action_skill
  def execute_action_skill
    skill = @active_battler.action.skill
    @active_battler.set_spend_cost(skill)  # 廒犐疚虱 HP/MP 邵姣姻客
    if skill.consume_hp
      hp_cost = [@active_battler.hp - 1,
        @active_battler.spend_cost].min      # HP 邵 1 社玩?疚
      @active_battler.hp -= hp_cost
    end

    execute_action_skill_KGC_MPCostAlter

    # 睚媜疚虱肢的社秉矽縶╪
    if skill.consume_hp && hp_cost < @active_battler.spend_cost
      @active_battler.hp = 0                 # HP 邵 0 羋疚虱
      display_added_states(@active_battler)  # 睚媜後姻姣?姜肥礹蒩
    end
  end
end