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Simple enough for a child, powerful enough for a developer
BMM_Archive · July 16, 2026
Venima's Shop Mod 1.0 Â Introduction This little mod enables a bit more control over the Shop Processing event, by allowing shop categorisation and multipliers for shop prices...
#==============================================================================
# ~~~ VENIMA'S SHOP MOD ~~~ Version 1.0
#==============================================================================
# --Effects of this script:
#
# Gives more flexibility for shops using the default Shop Processor
# command, essentially:
#
# Item prices become dependant on the shop (multiplied by two separate
# variables, one for bought, one for sold).
# Items available to sell become dependant on the shop type (shops have
# up to 4 types, or 3 non-types).
#------------------------------------------------------------------------------
# --How to:
#
# ---Initial Preparation:
# Step 1: Decide upon the variable ids in the module section below (line 63).
# If you have never done this before, please seek my shop mod tutorial in
# the associated RPG VX forum topic.
# Step 2: For each item/weapon/armor, enter <itemtype x> in the small
# box labelled "Note", and replace the x with a number representing
# its type (please look below to see an example list of types, line 96).
# Note: items default to type -1, which is reserved for unsellable items.
#
# ---Setting up a Shop:
# Step 1: Create a shop process as usual with the eventing window. If you
# have not used the shop process command before, please seek my shop mod
# tutorial in the associated RPG VX forum topic.
# Step 2: Before the shop process is called, set the shop type
# variables with the associated ids (ids are below, line 89).
# Step 3: Before the shop process is called, set the buy and sell
# price multiplers (100 is standard price).
#------------------------------------------------------------------------------
# --Bugs FAQ
#
# Q: All the bought/sold items in the shop are worth 0 gold! What's going on?
# A: Your buy/sell price multipler has not been set correctly (still on 0),
# please refer to "Setting up a shop" Step 3.
#
# Q: Some/all items aren't being shown in the sell section of the shop!
# A: You may have forgotten to add the itemtype to that item, please refer
# to "Initial Preparation" Step 2.
# A: You may have forgotten to set which types the shop accepts, please
# refer to "Setting up a Shop" Step 2.
# A: SHOP_TYPE_VAR1 may be -1, if this the case, the other shop types will
# be excluded rather than included. Please refrain from using -1 as a
# type for items unless they're absolutely unsellable.
# A: The ITEMTYPE regular expression may be faulty, try replacing line 50
# with: ITEMTYPE = /<(?:itemtype|type)[\s_]?(\d+)>/i
#------------------------------------------------------------------------------
# --Tips
#
# Tip: Set the buy/sell price multiplier to 100 when the game begins by
# placing an event on the same map as the player's starting position
# that autoruns. Don't forget to erase the event at the end of its
# processing.
# Tip: Decide upon all the item types early on and note them down below for
# referring to later.
#==============================================================================
# You may modify the values in the below module:
#==============================================================================
module VENIMA_SHOP_MOD
# The line below is the "Regular Expression" used to determine
# the tag found in the item/weapon/armor Note box of the database
# window.
# It currently searches for: <itemtype x> or <type x> where x is
# a NUMBER of your choice. You may need to modify this line if
# it conflicts with the expression of another mod. If you somehow
# break it, check the Bugs FAQ for a duplicate of the original.
ITEMTYPE = /<(?:itemtype|type)[\s_]?(\d+)>/i
# Determines the variable id to use to multiply bought item prices.
# A value of 100 means 100% of the default price. So if an item has
# a value of 10, and this variable is set to 150, the price in the
# shop becomes 15.
BUY_PRICE_MULTIPLIER_VAR = 1
# Determines the variable id to use to multiply sold item prices.
# A value of 100 means 100% of the default sell price. So if an item
# you own has a buy value of 8, and this variable is set to 150, the
# price in the shop becomes 6 (4 x 1.5, since sell price is 50%).
SELL_PRICE_MULTIPLIER_VAR = 2
# Determines the variable ids for deciding the shop types
# If SHOP_TYPE_VAR1's variable value is -1, all items may be sold in
# this shop except for those whose types are VAR2, VAR3, or VAR4.
SHOP_TYPE_VAR1 = 3
SHOP_TYPE_VAR2 = 4
SHOP_TYPE_VAR3 = 5
SHOP_TYPE_VAR4 = 6
end # VENIMA_SHOP_MOD
#==============================================================================
# Here's the list of item types I made for reference in my game,
# please feel free to modify this list (note this will not make a
# difference in the game, it's just here to help you be organised!)
#
# 0 = general
# 1 = weapon
# 2 = armor
# 3 = tools
# 4 = potions
# 5 = magic items
# 6 = artefacts
#
# Example: A gold nugget item would have "<itemtype 0>" in its note box.
#==============================================================================
#==============================================================================
#
#---------------------- DO NOT EDIT BEYOND THIS POINT! ------------------------
#
#==============================================================================
class RPG::BaseItem
#--------------------------------------------------------------------------
# common cache: load_notetags_itemtype
#--------------------------------------------------------------------------
def load_notetags_itemtype
@itemtype = -1
#---
self.note.split(/[\r\n]+/).each { |line|
case line
#---
when VENIMA_SHOP_MOD::ITEMTYPE
@itemtype = $1.to_i
#---
end
} # self.note.split
#---
end
def itemtype
load_notetags_itemtype if @itemtype.nil?
return @itemtype
end
def buyprice
return (@price * $game_variables[VENIMA_SHOP_MOD::BUY_PRICE_MULTIPLIER_VAR] / 100)
end
def sellprice
return (@price * $game_variables[VENIMA_SHOP_MOD::SELL_PRICE_MULTIPLIER_VAR] / 100)
end
end # RPG::BaseItem
#==============================================================================
# ** Window_ShopSell
#------------------------------------------------------------------------------
# This window displays items in possession for selling on the shop screen.
#==============================================================================
class Window_ShopSell < Window_Item
#--------------------------------------------------------------------------
# * Whether or not to include in item list
# item : item
#--------------------------------------------------------------------------
def include?(item)
return false if item == nil
return false if item.itemtype == -1
var1 = $game_variables[VENIMA_SHOP_MOD::SHOP_TYPE_VAR1]
var2 = $game_variables[VENIMA_SHOP_MOD::SHOP_TYPE_VAR2]
var3 = $game_variables[VENIMA_SHOP_MOD::SHOP_TYPE_VAR3]
var4 = $game_variables[VENIMA_SHOP_MOD::SHOP_TYPE_VAR4]
if var1 == -1
return false if var2 == item.itemtype
return false if var3 == item.itemtype
return false if var4 == item.itemtype
return true
else
return true if var1 == item.itemtype
return true if var2 == item.itemtype
return true if var3 == item.itemtype
return true if var4 == item.itemtype
return false
end
end
#--------------------------------------------------------------------------
# * Whether or not to display in enabled state
# item : item
#--------------------------------------------------------------------------
def enable?(item)
return (item.sellprice > 0)
end
end
#==============================================================================
# ** Window_ShopBuy
#------------------------------------------------------------------------------
# This window displays buyable goods on the shop screen.
#==============================================================================
class Window_ShopBuy < Window_Selectable
#--------------------------------------------------------------------------
# * Draw Item
# index : item number
#--------------------------------------------------------------------------
def draw_item(index)
item = @data[index]
number = $game_party.item_number(item)
#modified item.price to item.buyprice
enabled = (item.buyprice <= $game_party.gold and number < 99)
rect = item_rect(index)
self.contents.clear_rect(rect)
draw_item_name(item, rect.x, rect.y, enabled)
rect.width -= 4
self.contents.draw_text(rect, item.buyprice, 2)
end
end
#==============================================================================
# ** Scene_Shop
#------------------------------------------------------------------------------
# This class performs shop screen processing.
#==============================================================================
class Scene_Shop < Scene_Base
#--------------------------------------------------------------------------
# * Update Buy Item Selection
#--------------------------------------------------------------------------
def update_buy_selection
@status_window.item = @buy_window.item
if Input.trigger?(Input::B)
Sound.play_cancel
@command_window.active = true
@dummy_window.visible = true
@buy_window.active = false
@buy_window.visible = false
@status_window.visible = false
@status_window.item = nil
@help_window.set_text("")
return
end
if Input.trigger?(Input::C)
@item = @buy_window.item
number = $game_party.item_number(@item)
if @item == nil or @item.buyprice > $game_party.gold or number == 99
Sound.play_buzzer
else
Sound.play_decision
max = @item.buyprice == 0 ? 99 : $game_party.gold / @item.buyprice
max = [max, 99 - number].min
@buy_window.active = false
@buy_window.visible = false
@number_window.set(@item, max, @item.buyprice)
@number_window.active = true
@number_window.visible = true
end
end
end
#--------------------------------------------------------------------------
# * Update Sell Item Selection
#--------------------------------------------------------------------------
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.sellprice == 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.sellprice / 2)
@number_window.active = true
@number_window.visible = true
@status_window.visible = true
end
end
end
#--------------------------------------------------------------------------
# * Confirm Number Input
#--------------------------------------------------------------------------
def decide_number_input
Sound.play_shop
@number_window.active = false
@number_window.visible = false
case @command_window.index
when 0 # Buy
$game_party.lose_gold(@number_window.number * @item.buyprice)
$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 # sell
$game_party.gain_gold(@number_window.number * (@item.sellprice / 2))
$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
endLog in, then follow the RPG Maker Developers Group to see these download links.
Log in to downloadCredit - Venima  Edit: Updated links and script as of 22/11/16 (they should no longer be broken).
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