script.rb

################################################################################
##### Max Item
##########################################################
# Author : Biward
# Date : 27/04/2014
# Version : 1.0 XP
#
# With this script, you can modify the maximum amount you can have of an object (items, weapons, armors)
#
# How it works :
# You have to add the number max you can have of an object in the config. module
# just like this example :
# 
# MAX_ITEMS = {
# ID_ITEM  => MAX,
# ID_ITEM2 => MAX2,
# }
#
# Do not forget the , !
#
# Same for Weapons & 
#########
# Module
#########
module BIMAX
  
  MAX_ITEMS = {
  1 => 5
  }
  
  MAX_WEAPONS = {
  1 => 5
  }
  
  MAX_ARMORS = {
  1 => 5
  }
  
end
##########################################################
##### Script
##################################
##################################
# ** RPG::BaseItem
##################
module RPG
  class Item
    attr_reader :max
    def init_max
      @max = 99
      @max = BIMAX::MAX_ITEMS[self.id] if BIMAX::MAX_ITEMS.keys.include?(self.id)
    end
  end
  class Weapon
    attr_reader :max
    def init_max
      @max = 99
      @max = BIMAX::MAX_WEAPONS[self.id] if BIMAX::MAX_WEAPONS.keys.include?(self.id)
    end
  end
  class Armor
    attr_reader :max
    def init_max
      @max = 99
      @max = BIMAX::MAX_ARMORS[self.id] if BIMAX::MAX_ARMORS.keys.include?(self.id)
    end
  end
end
##################################
# ** Scene Title
############
class Scene_Title
  alias biload update
  def update
    load_max if ! @load
    biload
  end
  def load_max
    @load = true 
    $data_items.each { |obj| obj.init_max if obj }
    $data_weapons.each { |obj| obj.init_max if obj }
    $data_armors.each { |obj| obj.init_max if obj }
  end
end
##################################
# ** Scene Shop
#############
class Scene_Shop
  #--------------------------------------------------------------------------
  # * Frame Update (when buy window is active)
  #--------------------------------------------------------------------------
  def update_buy
    # Set status window item
    @status_window.item = @buy_window.item
    # If B button was pressed
    if Input.trigger?(Input::B)
      # Play cancel SE
      $game_system.se_play($data_system.cancel_se)
      # Change windows to initial mode
      @command_window.active = true
      @dummy_window.visible = true
      @buy_window.active = false
      @buy_window.visible = false
      @status_window.visible = false
      @status_window.item = nil
      # Erase help text
      @help_window.set_text("")
      return
    end
    # If C button was pressed
    if Input.trigger?(Input::C)
      # Get item
      @item = @buy_window.item
      # If item is invalid, or price is higher than money possessed
      if @item == nil or @item.price > $game_party.gold
        # Play buzzer SE
        $game_system.se_play($data_system.buzzer_se)
        return
      end
      # Get items in possession count
      case @item
      when RPG::Item
        number = $game_party.item_number(@item.id)
      when RPG::Weapon
        number = $game_party.weapon_number(@item.id)
      when RPG::Armor
        number = $game_party.armor_number(@item.id)
      end
      # If 99 items are already in possession
      if number == @item.max
        # Play buzzer SE
        $game_system.se_play($data_system.buzzer_se)
        return
      end
      # Play decision SE
      $game_system.se_play($data_system.decision_se)
      # Calculate maximum amount possible to buy
      max = @item.price == 0 ? @item.max : $game_party.gold / @item.price
      max = [max, @item.max - number].min
      # Change windows to quantity input mode
      @buy_window.active = false
      @buy_window.visible = false
      @number_window.set(@item, max, @item.price)
      @number_window.active = true
      @number_window.visible = true
    end
  end
end
##################################
# ** Game Party
#############
class Game_Party
  #--------------------------------------------------------------------------
  # * Gain Items (or lose)
  #     item_id : item ID
  #     n       : quantity
  #--------------------------------------------------------------------------
  def gain_item(item_id, n)
    # Update quantity data in the hash.
    if item_id > 0
      @items[item_id] = [[item_number(item_id) + n, 0].max, $data_items[item_id].max].min
    end
  end
  #--------------------------------------------------------------------------
  # * Gain Weapons (or lose)
  #     weapon_id : weapon ID
  #     n         : quantity
  #--------------------------------------------------------------------------
  def gain_weapon(weapon_id, n)
    # Update quantity data in the hash.
    if weapon_id > 0
      @weapons[weapon_id] = [[weapon_number(weapon_id) + n, 0].max, $data_weapons[weapon_id].max].min
    end
  end
  #--------------------------------------------------------------------------
  # * Gain Armor (or lose)
  #     armor_id : armor ID
  #     n        : quantity
  #--------------------------------------------------------------------------
  def gain_armor(armor_id, n)
    # Update quantity data in the hash.
    if armor_id > 0
      @armors[armor_id] = [[armor_number(armor_id) + n, 0].max, $data_armors[armor_id].max].min
    end
  end
end
##################################
##### End of the Script
##########################################################