Earned Item Shop

class Game_Party < Game_Unit
  attr_reader :earned_items_list #This makes the list readable only.
  alias inti_gm_party_gained_items_list initialize unless $@
  def initialize
    inti_gm_party_gained_items_list
    @earned_items_list = []
  end
  #--------------------------------------------------------------------------
  # * Gain Items (or lose)
  #     item          : Item
  #     n             : Number
  #     include_equip : Include equipped items
  #--------------------------------------------------------------------------
  alias gain_items_earned_items_list gain_item unless $@
  def gain_item(item, n, include_equip = false)
    gain_items_earned_items_list(item, n, include_equip)
    type = nil
    case item
    when RPG::Item
      type = 0
    when RPG::Weapon
      type = 1
    when RPG::Armor
      type = 2
    end
    #This will push the item in the list (array) unless it is already in it.
    i_details = [type, item.id]
    @earned_items_list << i_details unless @earned_items_list.include?(i_details)
  end
end


class Earned_Item_Shop < Scene_Shop
  def initialize
    $game_temp.shop_goods = $game_party.earned_items_list
    super
  end
end