#==============================================================================
# ○ぼったくりor割引 Ver1.00
# for RGSS2
# 西瓜 / Space not far
# http://muspell.raindrop.jp/
# ショップのアイテムの購入価格を変動させます。
#==============================================================================

# ショップのアイテムの価格がつねに設定した変数の値/100倍されます。
# 再定義を行っているのでできるだけ上のセクションに置いてください。

module SNF
  BUY_PRICE_ID = 10   # 価格のパーセンテージを代入する変数ID
  SELL_CHANGE = false # 売却価格も変動させるか？（true/false）
  SELL_RATE = 50      # 売却価格の購入価格に対するパーセンテージ
  
  def self.buy_price(price)
    price *= $game_variables[BUY_PRICE_ID]
    price /= 100
    return price
  end
  def self.sell_price(price)
    price = self.buy_price(price) if SELL_CHANGE
    price *= SELL_RATE
    price /= 100
    return price
  end
end

module RPG
  class Item < UsableItem
    def price
      return SNF.buy_price(@price)
    end
    def sell_price
      return SNF.sell_price(@price)
    end
  end
  class Weapon < BaseItem
    def price
      return SNF.buy_price(@price)
    end
    def sell_price
      return SNF.sell_price(@price)
    end
  end
  class Armor < BaseItem
    def price
      return SNF.buy_price(@price)
    end
    def sell_price
      return SNF.sell_price(@price)
    end
  end
end
class Scene_Shop < Scene_Base
  # 再定義
  #--------------------------------------------------------------------------
  # ● 売却アイテム選択の更新
  #--------------------------------------------------------------------------
  def update_sell_selection
    if Input.trigger?(Input::B)
      Sound.play_cancel
      @command_window.active = true
      @dummy_window.visible = true
      @sell_window.active = false
      @sell_window.visible = false
      @status_window.item = nil
      @help_window.set_text("")
    elsif Input.trigger?(Input::C)
      @item = @sell_window.item
      @status_window.item = @item
      if @item == nil or @item.price == 0
        Sound.play_buzzer
      else
        Sound.play_decision
        max = $game_party.item_number(@item)
        @sell_window.active = false
        @sell_window.visible = false
        @number_window.set(@item, max, @item.sell_price)
        @number_window.active = true
        @number_window.visible = true
        @status_window.visible = true
      end
    end
  end
  #--------------------------------------------------------------------------
  # ● 個数入力の決定
  #--------------------------------------------------------------------------
  def decide_number_input
    Sound.play_shop
    @number_window.active = false
    @number_window.visible = false
    case @command_window.index
    when 0  # 購入する
      $game_party.lose_gold(@number_window.number * @item.price)
      $game_party.gain_item(@item, @number_window.number)
      @gold_window.refresh
      @buy_window.refresh
      @status_window.refresh
      @buy_window.active = true
      @buy_window.visible = true
    when 1  # 売却する
      $game_party.gain_gold(@number_window.number * (@item.sell_price))
      $game_party.lose_item(@item, @number_window.number)
      @gold_window.refresh
      @sell_window.refresh
      @status_window.refresh
      @sell_window.active = true
      @sell_window.visible = true
      @status_window.visible = false
    end
  end
end