F0 Blacksmith 2.0 Fix

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# Blacksmith Shop
# Author: ForeverZer0
# Type: Custom Shop System
# Date: 4.23.2011
# Version: v.2.0
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#
# Explanation:
#   Will allow you to create a complete blacksmithing system. The player will be
#   able to forge equipment/items by using combinations of weapons, armors, and
#   items in their possession. Also includes a "Enchantment" feature that will
#   allow the player to use special items to add stats, elementel efficiencies,
#   and state altering to weapons and armor. The extraction feature allows for
#   the breaking down of current equipment and items into other ones.
#
# Features:
#   - Completely configurable item requirements for every item.
#   - Configurable blacksmith 'fees' for every weapon/armor
#   - Can use as many different items, with different quantities for each piece
#     of equipment.
#   - Variable "skill" levels for Blacksmith shops, which lets you decide
#     which features the Blacksmith can do.
#   - Only have to use a single script call to for the Blacksmith's shop.
#   - Can recycle old equipment by extracting items from weapons/armors/items.
#
# Instructions:
#   - Place script below debug and above main
#   - Configuration and instructions for each are below
#   - To call blacksmith shop, this script call:
#
#         w = [ WEAPON_IDS ]    (Use as many as needed, seperate with commas)
#         a = [ ARMOR_IDS ]
#         i = [ ITEM_IDS ]
#         $scene = Scene_BlackSmith.new(w, a, i)
#
#   - All IDs that you included in the script call for items will be be
#     available for forging in that shop.
#   - You can also include a fourth argument to the call to set the Blacksmith's
#     "skill level". Just make an array of true/false elemenets, set up like
#     this:
#
#             [CAN_FORGE?, CAN_EXTRACT?, CAN_ENCHANT?]
#
#     If you are not using the Enchant feature, omit the last option. Just make
#     sure that if you do include this argument that the array has a value for
#     each skill.
#
# Credits/Thanks:
#   - ForeverZer0, for the script.
#   - RoseSkye, huge thanks for beta-testing and demo map.
#
# Author's Notes:
#   Please report any bugs/issues at www.chaos-project.com
#
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module Blacksmith

#===============================================================================
#                          BEGIN CONFIGURATION
#===============================================================================

  FORGE_SE = ['006-System06', 80, 100]
  # SE played when an item is forged. ['FILENAME', VOLUME, PITCH]
  EXTRACT_SE = ['020-Teleport03', 80, 100]
  # SE played when an item extraction is performed. ['FILENAME', VOLUME, PITCH]
  ENCHANT_SE = ['020-Teleport03', 80, 100]
  # SE played when an item enchantment is performed. ['FILENAME', VOLUME, PITCH]

  USE_ENCHANTMENTS = true
  # Set to true to enable the "Enchant" feature of the system.

  NO_ENCHANT_WEAPONS = []
  NO_ENCHANT_ARMORS = []
  # Include IDs of any equipment that cannot be enchanted in the respective
  # arrays, seperating by commas. Ignore these if not using enchant feature.

  # Define the colors used for the text in the Blacksmith shop.
  PLUS_COLOR = Color.new(128, 255, 128)
  MINUS_COLOR = Color.new(255, 128, 128)

  MAP_BACK = true
  # Set to true if you would like slightly opaque windows with the map showing
  # through.

  #-----------------------------------------------------------------------------
  # FORGE DATABASE
  #-----------------------------------------------------------------------------
  # Define the materials used for each weapon/armor/item that can be forged and
  # extracted. They configuration is slightly different than what it was in the
  # first version of the script. You can seperately define materials that are
  # given during extraction if you like, or ignore it and it will simply return
  # the same materials it takes to forge them. It works like this:
  #
  # STEP 1:
  #   Create a new "case" in the appropriate method below for the type of item
  #   you are trying to define. There are three of them, one each for weapons,
  #   armors, and items. Just use this syntax:
  #
  #          when DATABASE_ID then []
  #
  # STEP 2:
  #   Now you can begin to add materials to forge the item. Each material has
  #   an number which defines what type of item is is. Here is the "key":
  #
  #       0 = Weapon
  #       1 = Armor
  #       2 = Item
  #
  #   To define a material for an item, you simply create a three element array
  #   using this format:
  #                       [ITEM_TYPE, DATABASE_ID, QUANTITY]
  #
  #   ...and add it the appropriate empty array in the case statement you made
  #   in Step 1. You can add as many different items as you please to forge an
  #   weapon/armor/item, simply seperate the material arrays with commas. See
  #   below for a few examples.
  #-----------------------------------------------------------------------------
  def self.weapon_forges(id)
    return case id
    when 1 then [[2, 33, 3], [2, 42, 1]]            # Bronze Sword
    when 2 then [[0, 1, 1], [2, 34, 2], [2, 42, 1]] # Iron Sword
    when 3 then [[0, 2, 1], [2, 34, 10]]            # Steel Sword
    when 4 then [[0, 2, 2], [2, 35, 3], [2, 41, 1]] # Mythril Sword
    when 5 then [[2, 33, 5], [2, 43, 1]]            # Bronze Spear
    when 6 then [[2, 34, 4], [0, 5, 1], [2, 43, 1]] # Iron Spear
    when 7 then [[0, 6, 2], [2, 34, 2], [2, 43, 1]] # Steel Spear
    when 8 then [[2, 35, 8], [2, 43, 1]]            # Mythril Spear
    end
  end

  def self.armor_forges(id)
    return case id
    when 1 then []
    when 2 then []
    when 3 then []
    when 4 then []
    when 5 then []
    end
  end

  def self.item_forges(id)
    return case id
    when 2 then [[2, 1, 5]]
    when 3 then [[2, 2, 5]]
    when 5 then [[2, 4, 5]]
    when 6 then [[2, 5, 5]]
    end
  end

  #-----------------------------------------------------------------------------
  # EXTRACT DATABASE
  #-----------------------------------------------------------------------------
  # Here you can define the items received when a specific item is extracted.
  # It can be setup the same as way as above. Items left undefined will return
  # the same items that are required to forge it. You can define an item with an
  # empty array to have it return no items, though it can still return gold.
  #-----------------------------------------------------------------------------
  def self.weapon_extractions(id)
    return case id
    when 1 then [[2, 33, 1], [2, 42, 1]]
    when 2 then [[2, 34, 1], [2, 41, 1]]
    when 3 then [[2, 34, 2], [0, 1, 1]]
    when 4 then [[2, 33, 5], [2, 34, 5], [2, 41, 1]]
    when 5 then [[2, 33, 1], [2, 43, 1]]
    when 6 then [[2, 34, 1], [2, 43, 1]]
    when 7 then [[2, 34, 2], [0, 5, 1]]
    when 8 then [[2, 33, 5], [2, 34, 5], [2, 43, 1]]
    else
      self.weapon_forges(id)
    end

  end

  def self.armor_extractions(id)
    return case id
    when 1 then []
    when 2 then []
    when 3 then []
    when 4 then []
    when 5 then []
    else
      self.armor_forges(id)
    end
  end

  def self.item_extractions(id)
    return case id
    when 1 then []                     # Potion
    when 2 then [[2, 1, 2]]            # High Potion
    when 3 then [[2, 2, 2], [2, 1, 2]] # Full Potion
    when 4 then []                     # Perfume
    when 5 then [[2, 4, 2]]            # High Perfume
    when 6 then [[2, 4, 2], [2, 5, 2]] # Full Perfume
    else
      self.item_forges(id)
    end
  end

  #-----------------------------------------------------------------------------
  # GOLD DATABASE
  #-----------------------------------------------------------------------------
  # Here you can define the amount of gold that is required to forge an item,
  # and the amount that is given if extracted. There are three methods, one each
  # for weapons, armors, and items. Simply follow this pattern for each
  # category:
  #
  #     when DATABASE_ID then [FORGE_PRICE, EXTRACT_GOLD,]
  #-----------------------------------------------------------------------------
  def self.weapon_gold(id)
    return case id
    when 1 then [200, 50]
    when 2 then [450, 225]
    when 3 then [1000, 525]
    when 4 then [1200, 200]
    when 5 then [300, 75]
    when 6 then [550, 275]
    when 7 then [1200, 600]
    when 8 then [1500, 650]
    else
      [0, 0]
    end
  end

  def self.armor_gold(id)
    return case id
    when 1 then [200, 25]
    when 2 then [500, 75]
    when 3 then [1500, 125]
    when 4 then [6000, 400]
    when 5 then [25000, 1000]
    else
      [0, 0]
    end
  end

  def self.item_gold(id)
    return case id
    when 1 then [100, 0]
    when 2 then [50, 25]
    when 3 then [250, 25]
    when 4 then [100, 0]
    when 5 then [50, 25]
    when 6 then [250, 25]
    else
      [0, 0]
    end
  end

  #-----------------------------------------------------------------------------
  # ENCHANT DATABASE
  #-----------------------------------------------------------------------------

  #-----------------------------------------------------------------------------
  # Here you can define what items will alter stats when used to enchant with.
  # You need to create a two element array, and add it to the respective array
  # below that corresponds with the desired item.
  #
  # ex.
  #     when ITEM_ID then [[KEYWORD, VALUE], [KEYWORD, VALUE]]
  #
  #     KEYWORD: See below for a list of possible keywords. Stat changes that
  #              can affect only weapons will have no effect on armors, and
  #              vice-versa.
  #     VALUE : The amount by which to change the stat. Negative values will
  #             lower the stat.
  #-----------------------------------------------------------------------------
  # KEYWORDS:
  #
  #   'ATK' (Weapon Only)           'DEX'               'PDEF'
  #   'EVA' (Armor Only)            'AGI'               'MDEF'
  #   'STR'                         'INT'
  #
  #   ** Keywords have to be written EXACTLY as they appear.
  #-----------------------------------------------------------------------------
  def self.enchant_stats(item_id)
    return case item_id
    when 39 then [['AGI', 5]]              # Carrot
    when 40 then [['STR', 15], ['ATK', 5]] # Behemoth Juice
    end
  end

  #-----------------------------------------------------------------------------
  # Define state altering enchantments.
  #
  # ex.
  #     when ITEM_ID then [[VALUE, STATE_ID], [VALUE, STATE_ID]]
  #
  #     VALUE: One of three different values to represent states efficiency.
  #              -1 = Minus state (Does nothing on armors)
  #               0 = Neutral
  #               1 = Plus state
  #     STATE_ID: The ID in the database of the state.
  #-----------------------------------------------------------------------------
  def self.enchant_states(item_id)
    return case item_id
    when 38 then [[1, 2], [1, 4], [1, 6]] # Chaos Orb
    end
  end

  #-----------------------------------------------------------------------------
  # Define element altering enchantments.
  #
  # ex.
  #     when ITEM_ID then [[VALUE, ELEMENT_ID], [VALUE, ELEMENT_ID]]
  #
  #     VALUE: One of two different values to represent element efficiency.
  #              true  = Uses element
  #              false = Doesn't use element (Negates element if present)
  #     ELEMENT_ID: The ID in the database of the element.
  #-----------------------------------------------------------------------------
  def self.enchant_elements(item_id)
    return case item_id
    when 36 then [[true, 3], [false, 5]] # Amethyst
    when 37 then [[true, 1]]             # Ruby ;)
    end
  end

  #-----------------------------------------------------------------------------
  # Define the amount of gold it takes to enchant a weapon or armor with the
  # item.
  #-----------------------------------------------------------------------------
  def self.enchant_gold(item_id)
    return case item_id
    when 36 then 1500
    when 37 then 1100
    when 38 then 1337
    when 39 then 250
    when 40 then 7500
    else
      0
    end
  end

#===============================================================================
#                              END CONFIGURATION
#===============================================================================

  def self.materials?(type, id)
    # Get the required materials for the item
    materials = case type
    when 0 then [self.weapon_forges(id), self.weapon_gold(id)]
    when 1 then [self.armor_forges(id), self.armor_gold(id)]
    when 2 then [self.item_forges(id), self.item_gold(id)]
    end
    materials[0] = [] if materials[0] == nil
    # Check gold, skipping item check if there is not enough.
    if $game_party.gold >= materials[1][0]
      # Iterate all required materials, making sure enough are in inventory.
      materials[0].each {|item|
        # Branch by the type of the item.
        result = case item[0]
        when 0 then ($game_party.weapon_number(item[1]) >= item[2])
        when 1 then ($game_party.armor_number(item[1]) >= item[2])
        when 2 then ($game_party.item_number(item[1]) >= item[2])
        end
        # End iteration and return false immidiately if missing required item.
        return false unless result
      }
      return true
    end
    return false
  end
  #-----------------------------------------------------------------------------
  def self.update_database(item)
    # Open the Weapons or Armors .rxdata file and add the created item.
    begin
      if item.is_a?(RPG::Weapon)
        file, data = 'Data/Weapons.rxdata', $data_weapons
      elsif item.is_a?(RPG::Armor)
        file, data = 'Data/Armors.rxdata', $data_armors
      else
        return
      end
      data[item.id] = item
      file = File.open(file, 'wb')
      Marshal.dump(data, file)
      file.close
    rescue
      print "Could not add #{item.name} to Database."
    end
  end
  #-----------------------------------------------------------------------------
  def self.create_item(base_item, enchant_item)
    base = base_item.clone
    # Do to clone only making shallow copies, it is necessary to also create
    # seperate clones of the element and state sets, otherwise the original
    # is affected too.
    if base_item.is_a?(RPG::Weapon)
      elem_set = base_item.element_set.clone
      plus_state_set = base_item.plus_state_set.clone
      minus_state_set = base_item.minus_state_set.clone
    else
      guard_elem_set = base_item.guard_element_set.clone
      guard_state_set = base_item.guard_state_set.clone
    end
    # Gather the enchantment data.
    stats = self.enchant_stats(enchant_item.id)
    states = self.enchant_states(enchant_item.id)
    elements = self.enchant_elements(enchant_item.id)
    # Iterate through stats
    if stats != nil
      stats.each {|stat|
        case stat[0]
        when 'ATK'
          if base.is_a?(RPG::Weapon)
            base.atk += stat[1]
          end
        when 'EVA'
          if base.is?(RPG::Armor)
            base.eva += stat[1]
          end
        when 'STR' then base.str_plus += stat[1]
        when 'DEX' then base.dex_plus += stat[1]
        when 'AGI' then base.agi_plus += stat[1]
        when 'INT' then base.int_plus += stat[1]
        when 'PDEF' then base.pdef_plus += stat[1]
        when 'MDEF' then base.mdef_plus += stat[1]
        end
      }
    end
    # Iterate through states
    if states != nil
      states.each {|state|
        id = state[1]
        if base.is_a?(RPG::Weapon)
          case state[0]
          when -1
            minus_state_set.push(id) unless minus_state_set.include?(id)
            plus_state_set -= [id]
          when 0
            minus_state_set -= [id]
            plus_state_set -= [id]
          when 1
            plus_state_set.push(id) unless plus_state_set.include?(id)
            minus_state_set -= [id]
          end
        elsif base.is_a?(RPG::Armor)
          if state[0] == 0
            guard_state_set -= [id]
          elsif state[0] == 1
            guard_state_set.push(id) unless guard_state_set.inlcude?(id)
          end
        end
      }
    end
    # Iterate through elements
    if elements != nil
      elements.each {|element|
        id = element[1]
        if base.is_a?(RPG::Weapon)
          if element[0] && !elem_set.include?(id)
            elem_set.push(id)
          else
            elem_set -= [id]
          end
        elsif base.is_a?(RPG::Armor)
          if element[0] && !guard_elem_set.include?(id)
            guard_elem_set.push(id)
          else
            guard_elem_set -= [id]
          end
        end
      }
    end
    # Give the weapon a new ID, remove the old item, and add the new one.
    if base.is_a?(RPG::Weapon)
      $game_party.lose_weapon(base_item.id, 1)
      base.id = $data_weapons.size
      base.element_set = elem_set
      base.plus_state_set = plus_state_set
      base.minus_state_set = minus_state_set
      $data_weapons[base.id] = base
      $game_party.gain_weapon(base.id, 1)
    elsif base.is_a?(RPG::Armor)
      $game_party.lose_armor(base_item.id, 1)
      base.id = $data_armors.size
      base.guard_element_set = guard_elem_set
      base.guard_state_set = guard_state_set
      $data_armors[base.id] = base
      $game_party.gain_armor(base.id, 1)
    end
    # Add new item to class equipment
    self.update_class_equipment(base_item, base)
    # Save the new item to the database.
    self.update_database(base)
  end
  #-----------------------------------------------------------------------------
  def self.update_class_equipment(old, new)
    # Adds the created item to class equipment that could equip the original
    $data_classes.each_index {|i|
      next if $data_classes[i] == nil
      if old.is_a?(RPG::Weapon) && $data_classes[i].weapon_set.include?(old.id)
        $data_classes[i].weapon_set.push(new.id)
      elsif old.is_a?(RPG::Armor) && $data_classes[i].armor_set.include?(old.id)
        $data_classes[i].armor_set.push(new.id)
      end
    }
    # Marshal the new data.
    begin
      file = File.open('Data/Classes.rxdata', 'wb')
      Marshal.dump($data_classes, file)
      file.close
    rescue
      print "Could not update RPG::Class database."
    end
  end
end


  $blacksmith = 2.0

#===============================================================================
# ** Window_BlacksmithCommand
#===============================================================================

class Window_BlacksmithCommand < Window_Selectable

  def initialize(level)
    super(0, 64, 480, 64)
    @level = level
    if Blacksmith::USE_ENCHANTMENTS
      @item_max = @column_max = 4
      @commands = ['Forge', 'Extract', 'Enchant', 'Exit']
    else
      @item_max = @column_max = 3
      @commands = ['Forge', 'Extract', 'Exit']
    end
    self.contents = Bitmap.new(self.width - 32, self.height - 32)
    refresh
    self.index = 0
  end
  #-----------------------------------------------------------------------------
  def refresh
    self.contents.clear
    (0...@item_max).each {|i| draw_item(i) }
  end
  #-----------------------------------------------------------------------------
  def draw_item(index)
    w = self.width / @item_max
    self.contents.font.color = @level[index] ? normal_color : disabled_color
    self.contents.draw_text(4 + (w * index), 0, w, 32, @commands[index])
  end
end

#===============================================================================
# ** Window_BlacksmithForge
#===============================================================================

class Window_BlacksmithForge < Window_Selectable

  def initialize(shop_goods)
    super(0, 128, 368, 352)
    # Initialize window and create instance variable to store available goods.
    @shop_goods = shop_goods
    self.active = self.visible = false
    refresh
    self.index = 0
  end
  #-----------------------------------------------------------------------------
  def item
    return @data[self.index]
  end
  #-----------------------------------------------------------------------------
  def refresh(enchanting = false)
    # Dispose bitmap and set to nil if not already.
    if self.contents != nil
      self.contents = self.contents.dispose
    end
    # Set flag for enchanting
    @enchanting = enchanting
    # Create array of equipment, depending on flag
    if @enchanting
      @data = []
      # Add weapons
      ($data_weapons - [nil]).each {|weapon|
        if $game_party.weapon_number(weapon.id) > 0 &&
            !Blacksmith::NO_ENCHANT_WEAPONS.include?(weapon.id)
          @data.push(weapon)
        end
      }
      # Add Armor
      ($data_armors - [nil]).each {|armor|
        if $game_party.armor_number(armor.id) > 0 &&
            !Blacksmith::NO_ENCHANT_ARMORS.include?(armor.id)
          @data.push(armor)
        end
      }
    else
      @data = @shop_goods
    end
    # Create a new bitmap, sized for available items
    @item_max = @data.size
    if @item_max > 0
      self.contents = Bitmap.new(width - 32, row_max * 32)
      (0...@item_max).each {|i| draw_item(i) }
    else
      self.contents = Bitmap.new(width - 32, 32)
    end
  end
  #-----------------------------------------------------------------------------
  def draw_item(index)
    item = @data[index]
    # Set a few local variables depending on the type of item.
    case item
    when RPG::Weapon
      quantity = $game_party.weapon_number(item.id)
      price, type = Blacksmith.weapon_gold(item.id)[0], 0
    when RPG::Armor
      quantity = $game_party.armor_number(item.id)
      price, type = Blacksmith.armor_gold(item.id)[0], 1
    when RPG::Item
      quantity = $game_party.item_number(item.id)
      price, type = Blacksmith.item_gold(item.id)[0], 2
    end
    # Don't check material requirments for forging wjen enchanting
    result = @enchanting ? true : Blacksmith.materials?(type, item.id)
    # Determine the color to use for drawing the item name.
    if quantity < 99 && result
      self.contents.font.color = normal_color
    else
      self.contents.font.color = disabled_color
    end
    # Draw the item name, icon, and price.
    x, y = 4, index * 32
    rect = Rect.new(x, y, self.width - 32, 32)
    self.contents.fill_rect(rect, Color.new(0, 0, 0, 0))
    bitmap = RPG::Cache.icon(item.icon_name)
    opacity = self.contents.font.color == normal_color ? 255 : 128
    self.contents.blt(x, y + 4, bitmap, Rect.new(0, 0, 24, 24), opacity)
    self.contents.draw_text(x + 28, y, 212, 32, item.name, 0)
    if !@enchanting
      self.contents.draw_text(x + 240, y, 88, 32, price.to_s, 2)
    end
  end
  #-----------------------------------------------------------------------------
  def update_help
    @help_window.set_text(self.item == nil ? '' : self.item.description)
  end
end

#===============================================================================
# ** Window_BlacksmithExtract
#===============================================================================

class Window_BlacksmithExtract < Window_Selectable

  def initialize
    super(0, 128, 368, 352)
    self.active = self.visible = false
    refresh
    self.index = 0
  end
  #-----------------------------------------------------------------------------
  def item
    return @data[self.index]
  end
  #-----------------------------------------------------------------------------
  def refresh
    # Dispose current bitmap if defined.
    if self.contents != nil
      self.contents = self.contents.dispose
    end
    # Create list of items in inventory
    @data = []
    (1...$data_weapons.size).each {|i|
      result = (Blacksmith.weapon_extractions(i) != nil ||
        Blacksmith.weapon_gold(i)[1] != 0)
      if $game_party.weapon_number(i) > 0 && result
        @data.push($data_weapons[i])
      end
    }
    (1...$data_armors.size).each {|i|
      result = (Blacksmith.armor_extractions(i) != nil ||
        Blacksmith.armor_gold(i)[1] != 0)
      if $game_party.armor_number(i) > 0 && result
        @data.push($data_armors[i])
      end
    }
    (1...$data_items.size).each {|i|
      result = (Blacksmith.item_extractions(i) != nil ||
        Blacksmith.item_gold(i)[1] != 0)
      if $game_party.item_number(i) > 0 && result
        @data.push($data_items[i])
      end
    }
    @item_max = @data.size
    # Create a new bitmap that will contain the listed items
    if @item_max > 0
      self.contents = Bitmap.new(width - 32, row_max * 32)
      (0...@item_max).each {|i| draw_item(i) }
    end
    self.index -= 1 if (self.item.nil? && self.index > 0)
  end
  #-----------------------------------------------------------------------------
  def draw_item(index)
    item = @data[index]
    # Set a few local variables depending on the type of item.
    quantity = case item
    when RPG::Weapon then $game_party.weapon_number(item.id)
    when RPG::Armor then $game_party.armor_number(item.id)
    when RPG::Item then $game_party.item_number(item.id)
    end
    # Draw the name, icon, and quantity of the item.
    x, y = 4, index * 32
    rect = Rect.new(x, y, self.width / @column_max - 32, 32)
    self.contents.fill_rect(rect, Color.new(0, 0, 0, 0))
    bitmap = RPG::Cache.icon(item.icon_name)
    self.contents.blt(x, y + 4, bitmap, Rect.new(0, 0, 24, 24), opacity)
    self.contents.draw_text(x + 28, y, 212, 32, item.name, 0)
  end
  #-----------------------------------------------------------------------------
  def update_help
    @help_window.set_text(self.item == nil ? '' : self.item.description)
  end
end

#===============================================================================
# ** Window_BlacksmithMaterials
#===============================================================================

class Window_BlacksmithMaterials < Window_Base

  attr_accessor :active

  def initialize
    # Initialize window size and coordinates.
    super(0, 128, 368, 352)
    self.visible = @active = false
  end
  #-----------------------------------------------------------------------------
  def refresh(item, type = 0)
    # Clear the bitmap and set the new materials.
    if self.contents != nil
      self.contents = self.contents.dispose
    end
    set_materials(item, type)
    # Create a new bitmap, based off the amount of materials
    if @materials != nil && @materials.size > 0
      self.contents = Bitmap.new(self.width - 32, 64 + (@materials.size * 32))
      # Draw each material and quantity required.
      self.contents.font.color = system_color
      word = type == 0 ? 'Cost' : ($data_system.words.gold + ':')
      self.contents.draw_text(4, 0, 212, 32, word, 0)
      text = type == 0 ? 'Required Materials:' : 'Extractable Materials:'
      self.contents.draw_text(4, 32, 368, 32, text, 0)
      self.contents.font.color = normal_color
      self.contents.draw_text(244, 0, 88, 32, @price.to_s, 2)
      # Enumerate through each material.
      @materials.each_index {|i|
        # Set local variable to current item, depending on type.
        case @materials[i][0]
        when 0
          item = $data_weapons[@materials[i][1]]
          enough = $game_party.weapon_number(item.id) >= @materials[i][2]
        when 1
          item = $data_armors[@materials[i][1]]
          enough = $game_party.armor_number(item.id) >= @materials[i][2]
        when 2
          item = $data_items[@materials[i][1]]
          enough = $game_party.item_number(item.id) >= @materials[i][2]
        end
        next if item == nil
        # Set local variable to store required amount of this item.
        required = @materials[i][2]
        # Set color of text, draw grayed if out if forging and not enough.
        self.contents.font.color = normal_color
        if type == 0 && !enough
          self.contents.font.color = disabled_color
        end
        # Set coordinates of current line.
        x, y = 4, 64 + (i * 32)
        # Draw item name, icon, and required amount.
        rect = Rect.new(x, y, self.width - 32, 32)
        self.contents.fill_rect(rect, Color.new(0, 0, 0, 0))
        bitmap = RPG::Cache.icon(item.icon_name)
        opacity = self.contents.font.color == normal_color ? 255 : 128
        self.contents.blt(x, y + 4, bitmap, Rect.new(0, 0, 24, 24), opacity)
        self.contents.draw_text(x + 28, y, 212, 32, item.name)
        self.contents.draw_text(x + 272, y, 48, 32, 'x', 0)
        self.contents.draw_text(x + 272, y, 48, 32, required.to_s, 2)
      }
    elsif @price > 0
      self.contents = Bitmap.new(self.width - 32, 64)
      self.contents.font.color = system_color
      self.contents.draw_text(4, 0, 212, 32, $data_system.words.gold + ':')
      self.contents.font.color = normal_color
      self.contents.draw_text(244, 0, 88, 32, @price.to_s, 2)
      self.contents.draw_text(4, 32, 368, 32, 'No Materials')
    end
  end
  #-----------------------------------------------------------------------------
  def set_materials(item, type)
    # Sets the required/extractable items for the passed item.
    id = item.id
    if item.is_a?(RPG::Weapon)
      @materials = type == 0 ? Blacksmith.weapon_forges(id) :
        Blacksmith.weapon_extractions(id)
      @price = Blacksmith.weapon_gold(id)[type]
    elsif item.is_a?(RPG::Armor)
      @materials = type == 0 ? Blacksmith.armor_forges(id) :
        Blacksmith.armor_extractions(id)
      @price = Blacksmith.armor_gold(id)[type]
    else
      if @materials != 2
        @materials = type == 0 ? Blacksmith.item_forges(id) :
          Blacksmith.item_extractions(id)
        @price = Blacksmith.item_gold(id)[type]
      end
    end
  end
  #-----------------------------------------------------------------------------
  def update
    # Allow scrolling of bitmap if materials don't fit in window.
    if @active && self.contents != nil && self.contents.height > 320
      if Input.trigger?(Input::UP)
        if self.oy > 0
          self.oy -= 32
          $game_system.se_play($data_system.cursor_se)
        end
      elsif Input.trigger?(Input::DOWN)
        if (self.oy + 320) < self.contents.height
          self.oy += 32
          $game_system.se_play($data_system.cursor_se)
        end
      end
    end
  end
end

#===============================================================================
# ** Window_BlacksmithStatus
#===============================================================================

class Window_BlacksmithStatus < Window_Base
  attr_reader :item
  def initialize
    super(368, 128, 272, 352)
    self.contents = Bitmap.new(width - 32, height - 32)
    # Create array of sprites same size as party
    @sprites = [Sprite.new, Sprite.new, Sprite.new, Sprite.new]
    # Set coordinates of each sprite
    @sprites.each_index {|i|
      @sprites[i].x, @sprites[i].y = 380, 194 + (i * 64)#(i * 34)
      @sprites[i].z = self.z + 10
    }
    self.visible = false
    # Array of flags for walking
    @walk = Array.new($game_party.actors.size, false)
    @count, @item = 0, nil
    refresh
  end
  #-----------------------------------------------------------------------------
  def refresh
    # Clear bitmap and turn off visiblity of each sprite.
    self.contents.clear
    @sprites.each {|sprite| sprite.visible = false }
    # Return if selected item index is undefined.
    return if @item == nil
    self.contents.font.size = Font.default_size + 2
    quantity = case @item
    when RPG::Item then $game_party.item_number(@item.id)
    when RPG::Weapon then $game_party.weapon_number(@item.id)
    when RPG::Armor then $game_party.armor_number(@item.id)
    end
    self.contents.font.color = system_color
    self.contents.draw_text(4, 0, 200, 32, 'Possessed:')
    self.contents.font.color = normal_color
    self.contents.draw_text(204, 0, 32, 32, quantity.to_s, 2)
    # Disable walking animation and end method if selected item is a normal item
    if @item.is_a?(RPG::Item)
      @walk.collect! {|value| false }
      return
    end
    # Change the font size.
    self.contents.font.size = Font.default_size - 1
    # Iterate each actor...
    $game_party.actors.each_index {|i|
      chr = $game_party.actors[i]
      # Set local variable to highlighted piece of equipment.
      if @item.is_a?(RPG::Weapon)
        eqp = $data_weapons[chr.weapon_id]
      else
        armors = [chr.armor1_id, chr.armor2_id, chr.armor3_id, chr.armor4_id]
        eqp = $data_armors[armors[@item.kind]]
      end
      # Draw the actor sprite.
      draw_actor_graphic(i, chr.equippable?(@item))
      # Draw message and return if unequippable.
      unless chr.equippable?(@item)
        self.contents.font.color = normal_color
        self.contents.draw_text(32, 54 + (i * 64), 150, 32, 'Cannot Equip')
        next
      else
        # Create array of stat changes.
        # [str, dex, agi, int, pdef, mdef, (atk || eva)]
        stats = [
          (@item == nil ? 0 : @item.str_plus) - (eqp == nil ? 0 : eqp.str_plus),
          (@item == nil ? 0 : @item.dex_plus) - (eqp == nil ? 0 : eqp.dex_plus),
          (@item == nil ? 0 : @item.agi_plus) - (eqp == nil ? 0 : eqp.agi_plus),
          (@item == nil ? 0 : @item.int_plus) - (eqp == nil ? 0 : eqp.int_plus),
          (@item == nil ? 0 : @item.pdef) - (eqp == nil ? 0 : eqp.pdef),
          (@item == nil ? 0 : @item.mdef) - (eqp == nil ? 0 : eqp.mdef)
        ]
        if @item.is_a?(RPG::Weapon)
          stats.push(
            (@item == nil ? 0 : @item.atk) - (eqp == nil ? 0 : eqp.atk))
        elsif @item.is_a?(RPG::Armor)
          stats.push(
            (@item == nil ? 0 : @item.eva) - (eqp == nil ? 0 : eqp.eva))
        end
        # Set local variable to each piece of equipments' name
        current_name = eqp == nil ? '' : eqp.name
        new_name = @item == nil ? '' : @item.name
        # If stats are all equal, show message and end method.
        if stats.all? {|stat| stat == 0 }
          self.contents.font.color = normal_color
          if current_name != new_name
            self.contents.draw_text(32, 54 + (i * 64), 150, 32, 'No Change')
          else
            self.contents.draw_text(32, 54 + (i * 64), 150, 32, 'Equipped')
          end
          next
        end
        # Draw any stat changes, using colors to show plus/minus changes
        self.contents.font.size = (Font.default_size - 1)
        self.contents.font.color = normal_color
        self.contents.draw_text(104, 42 + (64*i), 32, 32, 'STR ') if stats[0] != 0
        self.contents.draw_text(104, 58 + (64*i), 32, 32, 'DEX ') if stats[1] != 0
        self.contents.draw_text(104, 74 + (64*i), 32, 32, 'AGI ') if stats[2] != 0
        self.contents.draw_text(176, 42 + (64*i), 32, 32, 'INT ') if stats[3] != 0
        self.contents.draw_text(32, 58 + (64*i), 32, 32, 'PDF ') if stats[4] != 0
        self.contents.draw_text(32, 74 + (64*i), 32, 32, 'MDF ') if stats[5] != 0
        if stats[-1] != 0
          # Show stats changes for atk/eva, depending on the equipment type
          stat = @item.is_a?(RPG::Weapon) ? 'ATK ' : 'EVA '
          self.contents.draw_text(32, 42 + (64 * i), 32, 32, stat) if stat != 0
        end
        # Show any stat changes
        stats.each_index {|j|
          next if stats[j] == 0
          xy = case j
          when 0 then [132, 42 + (64 * i)]
          when 1 then [132, 58 + (64 * i)]
          when 2 then [132, 74 + (64 * i)]
          when 3 then [198, 42 + (64 * i)]
          when 4 then [60, 58 + (64 * i)]
          when 5 then [60, 74 + (64 * i)]
          when 6 then [60, 42 + (64 * i)]
          end
          # Set color and operator depending on value
          if stats[j] < 0
            self.contents.font.color, sign = Blacksmith::MINUS_COLOR, '-'
          else
            self.contents.font.color, sign = Blacksmith::PLUS_COLOR, '+'
          end
          self.contents.draw_text(xy[0], xy[1], 8, 32, sign, 1)
          self.contents.draw_text(xy[0] + 10, xy[1], 24, 32, stats[j].abs.to_s)
        }
      end
    }
  end
  #-----------------------------------------------------------------------------
  def item=(item)
    if @item != item
      # Change the item variable and refresh.
      @item = item
      refresh
    end
  end
  #-----------------------------------------------------------------------------
  def draw_actor_graphic(id, equipable)
    # Draws the actor graphic
    actor = $game_party.actors[id]
    @sprites[id].bitmap = RPG::Cache.character(actor.character_name,
      actor.character_hue)
    @sprites[id].src_rect.set(0, 0, @sprites[id].bitmap.width / 4,
    @sprites[id].bitmap.height / 4)
    # Set walking animation if item is equippable.
    @walk[id] = equipable
    @sprites[id].tone = Tone.new(0, 0, 0, equipable ? 0 : 255)
    @sprites[id].visible = true
  end
  #-----------------------------------------------------------------------------
  def update
    super
    # Update the walking animation.
    @count = (@count + 1) % 40
    $game_party.actors.each_index {|i|
      next unless @walk[i]
      if @sprites[i].bitmap != nil
        w = @sprites[i].bitmap.width / 4
        h = @sprites[i].bitmap.height / 4
        x = (@count / 10) * w
        @sprites[i].src_rect.set(x, 0, w, h)
      end
    }
  end
  #-----------------------------------------------------------------------------
  def visible=(bool)
    super
    # Set visible to the actor sprites as well.
    @sprites.each {|sprite| sprite.visible = (bool ? !@item.nil? : false)}
  end
  #-----------------------------------------------------------------------------
  def dispose
    super
    # Dispose the actor sprites as well.
    @sprites.each {|sprite| sprite.dispose }
  end
end


#===============================================================================
# ** Window_BlacksmithEnchant
#===============================================================================

class Window_BlacksmithEnchant < Window_Selectable

  def initialize
    super(0, 128, 368, 352)
    self.active = self.visible = false
    refresh
    self.index = 0
  end
  #-----------------------------------------------------------------------------
  def item
    return @data[self.index]
  end
  #-----------------------------------------------------------------------------
  def refresh
    # Dispose current bitmap if defined.
    if self.contents != nil
      self.contents = self.contents.dispose
    end
    # Create list of items in inventory
    @data = []
    ($data_items - [nil]).each {|item|
      next if $game_party.item_number(item.id) <= 0
      result = false
      result = true if Blacksmith.enchant_stats(item.id) != nil
      result = true if Blacksmith.enchant_states(item.id) != nil
      result = true if Blacksmith.enchant_elements(item.id) != nil
      @data.push(item) if result
    }
    @item_max = @data.size
    # Create a new bitmap that will contain the listed items
    if @item_max > 0
      self.contents = Bitmap.new(width - 32, row_max * 32)
      (0...@item_max).each {|i| draw_item(i) }
    end
    self.index -= 1 if (self.item.nil? && self.index > 0)
  end
  #-----------------------------------------------------------------------------
  def draw_item(index)
    item = @data[index]
    # Set a few local variables depending on the type of item.
    quantity = $game_party.item_number(item.id)
    # Draw the name, icon, and quantity of the item.
    x, y = 4, index * 32
    rect = Rect.new(x, y, self.width / @column_max - 32, 32)
    self.contents.fill_rect(rect, Color.new(0, 0, 0, 0))
    bitmap = RPG::Cache.icon(item.icon_name)
    self.contents.blt(x, y + 4, bitmap, Rect.new(0, 0, 24, 24))
    self.contents.draw_text(x + 28, y, 212, 32, item.name, 0)
    self.contents.draw_text(x + 240, y, 16, 32, ':', 1)
    self.contents.draw_text(x + 256, y, 24, 32, quantity.to_s, 2)
  end
  #-----------------------------------------------------------------------------
  def update_help
    @help_window.set_text(self.item == nil ? '' : self.item.description)
  end
end

#===============================================================================
# ** Scene_Blacksmith
#===============================================================================

class Scene_Blacksmith

  def initialize(weapons = [], armors = [], items = [], level = nil)
    # Set available goods for this shop based off passed argument.
    @goods = []
    @goods += weapons.collect {|id| $data_weapons[id] }
    @goods += armors.collect {|id| $data_armors[id] }
    @goods += items.collect {|id| $data_items[id] }
    @goods.uniq!
    # Configure the level variable
    @level = (level == nil) ? Array.new(4, true) : (level + [true])
    @enchants = Blacksmith::USE_ENCHANTMENTS
  end
  #-----------------------------------------------------------------------------
  def main
    # Create a Proc to handle confirmation of choices
    @confirm_proc = Proc.new {
      @help_window.set_text('Are you sure?')
      window = Window_Command.new(160, ['Confirm', 'Cancel'])
      window.x, window.y, window.z = 224, 192, 9999
      loop { Graphics.update; Input.update; window.update
        if Input.trigger?(Input::C) || Input.trigger?(Input::B)
          result = (Input.trigger?(Input::C) && window.index == 0)
          $game_system.se_play($data_system.cancel_se) unless result
          window.dispose
          break(result)
        end
      }
    }
    # Initialize the needed windows.
    @command_window = Window_BlacksmithCommand.new(@level)
    @forge_window = Window_BlacksmithForge.new(@goods)
    @extract_window = Window_BlacksmithExtract.new
    @materials_window = Window_BlacksmithMaterials.new
    @enchant_window = Window_BlacksmithEnchant.new
    @status_window = Window_BlacksmithStatus.new
    @dummy_window = Window_Base.new(0, 128, 640, 352)
    @gold_window = Window_Gold.new
    @gold_window.x, @gold_window.y = 480, 64
    @help_window = Window_Help.new
    # Bind the help window to the other windows.
    @forge_window.help_window = @extract_window.help_window = @help_window
    @enchant_window.help_window = @help_window
    # Set a windows array for easier handling of all windows.
    @windows = [@command_window, @forge_window, @extract_window, @help_window,
      @materials_window, @status_window, @dummy_window, @gold_window, @enchant_window]
    # Create map sprite if configured to do so, and set window opacity
    if Blacksmith::MAP_BACK
      @spriteset = Spriteset_Map.new
      @windows.each {|window| window.opacity = 160 }
    end
    # Execute the transition and start the main loop.
    Graphics.transition
    loop {Graphics.update; Input.update; update; break if $scene != self }
    # Freeze the Graphics and dispose the windows
    Graphics.freeze
    @windows.each {|window| window.dispose }
    if Blacksmith::MAP_BACK && @spriteset != nil
      @spriteset.dispose
    end
  end
  #-----------------------------------------------------------------------------
  def update
    # Update the windows
    @windows.each {|window| window.update }
    # Branch method depending on current action.
    if @command_window.active
      update_command
    elsif @extract_window.active
      update_extract
    elsif @forge_window.active
      update_forge
    elsif @materials_window.active
      update_materials
    elsif @enchant_window.active
      update_enchant
    end
  end
  #-----------------------------------------------------------------------------
  def back_to_map
    # Play SE and return to the map.
    $game_system.se_play($data_system.cancel_se)
    $scene = Scene_Map.new
  end
  #-----------------------------------------------------------------------------
  def update_command
    @forge_window.index = 0
    @extract_window.index = 0
    # Set help text depending on the selected index.
    help_text = case @command_window.index
    when 0 then 'Use materials to forge new weapons, armors, and items.'
    when 1 then 'Extract materials from weapons, armors, and items.'
    when 2 then !@enchants ? 'Exit the shop.' :
      'Enchant weapons, armors, and items using other items.'
    when 3 then 'Exit the shop.'
    end
    @help_window.set_text(help_text)
    # Check for Input.
    if Input.trigger?(Input::B)
      back_to_map
    elsif Input.trigger?(Input::C)
      # Branch depending on command index
      case @command_window.index
      when 0
        # Play SE and return if option is locked.
        unless @level[0]
          $game_system.se_play($data_system.buzzer_se)
          return
        end
        $game_system.se_play($data_system.decision_se)
        # Shift scene to forge phase.
        @dummy_window.visible = false
        @forge_window.refresh(false)
        @command_window.active = false
        @forge_window.active = @forge_window.visible = true
        @status_window.item = @forge_window.item
        @status_window.visible = true
      when 1
        # Play SE and return if option is locked.
        unless @level[1]
          $game_system.se_play($data_system.buzzer_se)
          return
        end
        $game_system.se_play($data_system.decision_se)
        # Shift scene to extract phase
        @extract_window.refresh
        @command_window.active = @dummy_window.visible = false
        @extract_window.active = @extract_window.visible = true
        @status_window.item = @extract_window.item
        @status_window.visible = true
      when 2
        # Play SE and return if option is locked.
        if @enchants
          unless @level[2]
            $game_system.se_play($data_system.buzzer_se)
            return
          end
          $game_system.se_play($data_system.decision_se)
          # Shift scene to enchant phase.
          @forge_window.refresh(true)
          @command_window.active = @dummy_window.visible = false
          @forge_window.active = @forge_window.visible = true
          @status_window.item = @forge_window.item
          @status_window.visible = true
        else
          back_to_map
        end
      when 3
        back_to_map
      end
    end
  end
  #-----------------------------------------------------------------------------
  def update_forge
    # Update for input when forge window is active.
    @item = @status_window.item = @forge_window.item
    if Input.trigger?(Input::B)
      $game_system.se_play($data_system.cancel_se)
      @command_window.active = @dummy_window.visible = true
      @forge_window.active = @forge_window.visible = false
      @status_window.visible = false
    elsif Input.trigger?(Input::C)
      if @forge_window.item == nil
        $game_system.se_play($data_system.buzzer_se)
        return
      end
      $game_system.se_play($data_system.decision_se)
      @forge_window.active = @forge_window.visible = false
      if @command_window.index == 0
        @materials_window.refresh(@item, 0)
        @materials_window.visible = @materials_window.active = true
      else
        @enchant_window.refresh
        @enchant_window.visible = @enchant_window.active = true
      end
    end
  end
  #-----------------------------------------------------------------------------
  def update_extract
    # Update for input when extraction window is active.
    @item = @status_window.item = @extract_window.item
    if Input.trigger?(Input::B)
      $game_system.se_play($data_system.cancel_se)
      @command_window.active = @dummy_window.visible = true
      @extract_window.active = @extract_window.visible = false
      @status_window.visible = false
    elsif Input.trigger?(Input::C)
      if @extract_window.item == nil
        $game_system.se_play($data_system.buzzer_se)
        return
      end
      $game_system.se_play($data_system.decision_se)
      @materials_window.refresh(@item, 1)
      @extract_window.active = @extract_window.visible = false
      @materials_window.visible = @materials_window.active = true
    end
  end
  #-----------------------------------------------------------------------------
  def update_enchant
    # Update input on the enchantment items screen.
    if Input.trigger?(Input::B)
      # Return to previous screen if cancel button is pressed.
      $game_system.se_play($data_system.cancel_se)
      @enchant_window.visible = @enchant_window.active = false
      @forge_window.active = @forge_window.visible = true
    elsif Input.trigger?(Input::C)
      if @enchant_window.item == nil
        $game_system.se_play($data_system.buzzer_se)
        return
      end
      enchant_item if @confirm_proc.call
    end
  end
  #-----------------------------------------------------------------------------
  def enchant_item
    # Apply enchantment to weapon/armor using item
    $game_party.lose_item(@enchant_window.item.id, 1)
    Blacksmith.create_item(@forge_window.item, @enchant_window.item)
    # Play SE
    $game_system.se_play(RPG::AudioFile.new(*Blacksmith::ENCHANT_SE))
    # Refesh windows
    [@enchant_window, @status_window].each {|window| window.refresh }
    @forge_window.refresh(true)
    # Return to previous screen
    @enchant_window.visible = @enchant_window.active = false
    @forge_window.active = @forge_window.visible = true
  end
  #-----------------------------------------------------------------------------
  def update_materials
    # Show help text.
    text = 'Press the Action Button to proceed. Press Cancel to go back'
    @help_window.set_text(text)
    if Input.trigger?(Input::B)
      # Return to previous screen if cancel button is pressed.
      $game_system.se_play($data_system.cancel_se)
      @materials_window.visible = @materials_window.active = false
      if @command_window.index == 0
        @forge_window.active = @forge_window.visible = true
      else
        @extract_window.active = @extract_window.visible = true
      end
    elsif Input.trigger?(Input::C) && @confirm_proc.call
      @command_window.index == 0 ? forge_item : extract_item
    end
  end
  #-----------------------------------------------------------------------------
  def forge_item
    # Set local variables depending on item type.
    case @item
    when RPG::Weapon
      quantity, type = $game_party.weapon_number(@item.id), 0
      materials = Blacksmith.weapon_forges(@item.id)
      price = Blacksmith.weapon_gold(@item.id)[0]
    when RPG::Armor
      quantity, type = $game_party.armor_number(@item.id), 1
      materials = Blacksmith.armor_forges(@item.id)
      price = Blacksmith.armor_gold(@item.id)[0]
    when RPG::Item
      quantity, type = $game_party.item_number(@item.id), 2
      materials = Blacksmith.item_forges(@item.id)
      price = Blacksmith.item_gold(@item.id)[0]
    end
    # If player doesn't have the materials or gold, play SE and end method.
    unless Blacksmith.materials?(type, @item.id)
      $game_system.se_play($data_system.buzzer_se)
      return
    end
    # End method and play buzzer if inventory is full.
    return $game_system.se_play($data_system.buzzer_se) if quantity == 99
    # Play the defined SE used when forging.
    $game_system.se_play(RPG::AudioFile.new(*Blacksmith::FORGE_SE))
    # Remove required materials from inventory and subtract gold cost.
    if materials != nil
      materials.each {|material|
        case material[0]
        when 0 then $game_party.lose_weapon(material[1], material[2])
        when 1 then $game_party.lose_armor(material[1], material[2])
        when 2 then $game_party.lose_item(material[1], material[2])
        end
      }
    end
    $game_party.lose_gold(price)
    # Add forged item
    case @item
    when RPG::Weapon then $game_party.gain_weapon(@item.id, 1)
    when RPG::Armor then $game_party.gain_armor(@item.id, 1)
    when RPG::Item then $game_party.gain_item(@item.id, 1)
    end
    # Reset windows.
    @materials_window.visible = @materials_window.active = false
    @forge_window.active = @forge_window.visible = true
    # Refresh any windows that may have changed
    [@status_window, @gold_window, @extract_window, @forge_window,
      @enchant_window].each {|window| window.refresh }
  end
  #-----------------------------------------------------------------------------
  def extract_item
    # Set local variables depending on item type.
    case @item
    when RPG::Weapon
      quantity = $game_party.weapon_number(@item.id)
      materials = Blacksmith.weapon_extractions(@item.id)
      price = Blacksmith.weapon_gold(@item.id)[1]
    when RPG::Armor
      quantity = $game_party.armor_number(@item.id)
      materials = Blacksmith.armor_extractions(@item.id)
      price = Blacksmith.armor_gold(@item.id)[1]
    when RPG::Item
      quantity = $game_party.item_number(@item.id)
      materials = Blacksmith.item_extractions(@item.id)
      price = Blacksmith.item_gold(@item.id)[1]
    end
    # If nothing is defined for the extraction, return.
    if materials == nil || (materials.empty? && price == 0)
      return $game_system.se_play($data_system.buzzer_se)
    end
    # Play extraction SE
    $game_system.se_play(RPG::AudioFile.new(*Blacksmith::EXTRACT_SE))
    # Perform extraction, adding materials and increasing gold.
    materials.each {|material|
      case material[0]
      when 0 then $game_party.gain_weapon(material[1], material[2])
      when 1 then $game_party.gain_armor(material[1], material[2])
      when 2 then $game_party.gain_item(material[1], material[2])
      end
    }
    $game_party.gain_gold(price)
    # Remove extracted item from inventory
    case @item
    when RPG::Weapon then $game_party.lose_weapon(@item.id, 1)
    when RPG::Armor then $game_party.lose_armor(@item.id, 1)
    when RPG::Item then $game_party.lose_item(@item.id, 1)
    end
    # Reset windows.
    @materials_window.visible = @materials_window.active = false
    @extract_window.active = @extract_window.visible = true
    # Refresh any windows that may have changed
    [@status_window, @gold_window, @extract_window].each {|window| window.refresh }
  end
end