Making certian items not appear in the item menu and the shop sell menu

[NBEOTM]

I'm looking for an an edit to Window_ShopSell and Window_item, that makes it so certian items do not appear there, like say if a piece of armor was tagged with element 17 it would not apear under items nor would it pop up when you were selling items.

Thank you

 

[xBrokenSin]

Well, for the selling of items... just don't add the item to the store!  :wink:

And as for not showing the item, thats quite simple. First open the script editor and find Window_Item, at line 58 add this:

# Intructions: Replace "element_id" with the number of the element you don't want displayed in the menu
# Removes tagged items from menu
for item in @data
  case item
  when RPG::Item
    if item.element_set.include?(element_id)
      @data.delete(item)
    end
  when RPG::Weapon
    if item.element_set.include?(element_id)
      @data.delete(item)
    end
  when RPG::Armor
    if item.guard_element_set.include?(element_id)
      @data.delete(item)
    end
  end
end

Uhm, I didn't test it very thoughrougly but it should work.

 

[LegacyCrono]

I believe he means when you sell items. You know, the kill monster-get the item-return to town-sell item-get money thing. :P

Well, I'm at school now, so can't help very much. But it should be just like what xBrokenSin said. ^^
SEE YA!!!!!

 

[Dargor]

You could make a little module containing arrays for items/weapons/armors and store the id if the item you don't want to appear in those array. Something like that:

module Items
  Invisible_Weapons = [1,2,3]
...
end

And then, in your item windows, each time you see this

@data.push(item)

add a condition that prevents the item from being added into the data array.
Based on the previous module, I would do something like that:

...
@data.push(item) unless Items::Weapons.include?(item.id)
...

Hope it helps!
-Dargor

 

[SephirothSpawn]

Well, you can directly modify Window_Item, Window_ShopBuy and Window_ShopSell, in this area:

    @data = []
    # Add item
    for i in 1...$data_items.size
      if $game_party.item_number(i) > 0
        @data.push($data_items[i])
      end
    end
    # Also add weapons and items if outside of battle
    unless $game_temp.in_battle
      for i in 1...$data_weapons.size
        if $game_party.weapon_number(i) > 0
          @data.push($data_weapons[i])
        end
      end
      for i in 1...$data_armors.size
        if $game_party.armor_number(i) > 0
          @data.push($data_armors[i])
        end
      end
    end

All the different classes have that block, or a block very similar to that. Now, let me explain what this does. First, we create an blank list, @data, called an array.

Now, our next part:

    for i in 1...$data_items.size
      if $game_party.item_number(i) > 0
        @data.push($data_items[i])
      end
    end

This block passes through all the different items your game has. (Personally, I would have rather granted access to the different keys in the @items hash in $game_party, rather than passing though dozens possibly hundreds of numbers running several test that aren't needed. $game_party.items.each do |item_id, n| would have been more effective basically.)

What you need to modify is this line right here: if $game_party.item_number(i) > 0

From here, you just need to add: && <insert your code here>.

Let say you wanted to only add items that have your element 17. Your code would be:

if $game_party.item_number(i) > 0 && $data_items.element_set.include?(17)

You would do the same thing for items, weapons and armors, just replacing $game_party.item_number, $game_party.weapon_number, $game_party.armor_number respectively and $data_items, $data_weapons and $data_armors respectively as well. You can do this changes in any of your classes.

You can also run different filters by creating a new refresh method, that allows you to pass certain parameters to the method to allow you to have a more dynamic filter that isn't always the same.

class Window_Item
  def refresh_filter(args = {})
    if self.contents != nil
      self.contents.dispose
      self.contents = nil
    end
    @data = []
    for i in 1...$data_items.size
      if $game_party.item_number(i) > 0
        # add special args here
        if <code>
          @data << $data_items[i]
        end
     end
     # ...
  end
end

Now I would use a module for testing items with your arguments where it says # add special args here. But that's a little advanced. If you would like to see, I had an old item filtering and sorting system that isn't complete, but I could show you what I have done if you are interested.

Let me know if you need any more help.