Event Item Containers v1.0

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#↓                                                                            ↓#
#↓                     Event Item Containers: Version 1.0                     ↓#
#↓                                                                            ↓#
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#↑                                                                            ↑#
#↑                            Written By: Joe Pro                             ↑#
#↑                        Last Edited:  July 31, 2014                         ↑#
#↑                                                                            ↑#
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#◙ ** Disclaimer                                                              ◙#
#◙••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••◙#
#◙                                                                            ◙#
#◙ This script is not for commercial, if you wish to use this script in a     ◙#
#◙ game please PM me. All credit is to be given to me as the author of this   ◙#
#◙ script.                                                                    ◙#
#◙                                                                            ◙#
#◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙#
#◙ ** How To Use                                                              ◙#
#◙••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••◙#
#◙                                                                            ◙#
#◙ * Acts just like $game_party's item system fo events.                      ◙#
#◙                                                                            ◙#
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#◙ ** Updates / Version Notes                                                 ◙#
#◙••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••◙#
#◙                                                                            ◙#
#◙   v0.1                                                                     ◙#
#◙ ~◄◙◙◙◙►~                                                                   ◙#
#◙ * This script is a base for other scripts. It allows you to add/remove     ◙#
#◙   items, weapons and/or armors to an event. You can then use that to       ◙#
#◙   create other scenes or whatever you can think up.                        ◙#
#◙                                                                            ◙#
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#↕                     Event Item Containers: Version 0.1                     ↕#
#↑                                                                            ↑#
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#==============================================================================
# ** Game_Event
#------------------------------------------------------------------------------
#  This class handles events. Functions include event page switching via
# condition determinants and running parallel process events. Used within the
# Game_Map class.
#==============================================================================

class Game_Event < Game_Character

  #--------------------------------------------------------------------------
  # * Aliasing Method: Initialize Public Member Variables
  #--------------------------------------------------------------------------
  alias :geipm040546400000654 :init_public_members

  #--------------------------------------------------------------------------
  # * Initialize Public Member Variables
  #--------------------------------------------------------------------------
  def init_public_members
    geipm040546400000654()
    init_all_items
  end

  #--------------------------------------------------------------------------
  # * Initialize All Item Lists
  #--------------------------------------------------------------------------
  def init_all_items
    @items = {}
    @weapons = {}
    @armors = {}
  end

  #--------------------------------------------------------------------------
  # * Get Item Object Array
  #--------------------------------------------------------------------------
  def items
    @items.keys.sort.collect {|id| $data_items[id] }
  end

  #--------------------------------------------------------------------------
  # * Get Item Object Array
  #--------------------------------------------------------------------------
  def weapons
    @weapons.keys.sort.collect {|id| $data_weapons[id] }
  end

  #--------------------------------------------------------------------------
  # * Get Item Object Array
  #--------------------------------------------------------------------------
  def armors
    @armors.keys.sort.collect {|id| $data_armors[id] }
  end

  #--------------------------------------------------------------------------
  # * Get Array of All Item Objects
  #--------------------------------------------------------------------------
  def all_items
    items + (weapons + armors)
  end

  #--------------------------------------------------------------------------
  # * Get Container Object Corresponding to Item Class
  #--------------------------------------------------------------------------
  def item_container(item_class)
    return @items   if item_class == RPG::Item
    return @weapons if item_class == RPG::Weapon
    return @armors  if item_class == RPG::Armor
    return nil
  end

  #--------------------------------------------------------------------------
  # * Get Number of Items Possessed
  #--------------------------------------------------------------------------
  def item_number(item)
    container = item_container(item.class)
    container ? container[item.id] || 0 : 0
  end


  #--------------------------------------------------------------------------
  # * Get Maximum Number of Items Possessed
  #--------------------------------------------------------------------------
  def max_item_number(item)
    return 99
  end

  #--------------------------------------------------------------------------
  # * Determine if Maximum Number of Items Are Possessed
  #--------------------------------------------------------------------------
  def item_max?(item)
    item_number(item) >= max_item_number(item)
  end

  #--------------------------------------------------------------------------
  # * Determine Item Possession Status
  #     include_equip : Include equipped items
  #--------------------------------------------------------------------------
  def has_item?(item)
    return item_number(item) > 0
  end

  #--------------------------------------------------------------------------
  # * Increase/Decrease Items
  #--------------------------------------------------------------------------
  def gain_item(item, amount)
    container = item_container(item.class)
    return unless container
    last_number = item_number(item)
    new_number = last_number + amount
    container[item.id] = [[new_number, 0].max, max_item_number(item)].min
    container.delete(item.id) if container[item.id] == 0
    $game_map.need_refresh = true
  end

  #--------------------------------------------------------------------------
  # * Lose Items
  #     include_equip : Include equipped items
  #--------------------------------------------------------------------------
  def lose_item(item, amount, include_equip = false)
    gain_item(item, -amount, include_equip)
  end

end