[HELP] How to best uninstall a ware from a trader's list?

[oliverjanda]

Hi,
I added a new ware to the list of a trader:

Code: Select all

<?xml version="1.0" encoding="UTF-8"?>
<mdscript name="HUDOnlyCockpit" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="md.xsd">

	<cues>
		<cue name="AddCockpit" instantiate="false">
			<conditions>
				<check_any>  
					<event_cue_completed cue="md.Setup.Start"/>
					<event_game_loaded/>  
				</check_any>     
			</conditions>
			<actions>  
				<include_actions ref="PatchAddCockpit" />					
			</actions>  
		</cue> 

		<library name="PatchAddCockpit">
			<actions>

				<set_value name="$MechanicNewItemList" exact="
                [
                    [ware.spe_cockpit_test,  1, 1, 100]
                ]
			"/> 

				<do_all exact="$MechanicNewItemList.count" counter="$Counter">	 
					<do_if value="md.$CockpitUpgradetraderLists.{1}.indexof.{$MechanicNewItemList.{$Counter}}" negate="true" >
						<append_to_list name="md.$CockpitUpgradetraderLists.{1}" exact="$MechanicNewItemList.{$Counter}" />
					</do_if> 
				</do_all>

			</actions>
    </library>

	</cues>
</mdscript>

So how do I make this savegame compatible?
How do I remove the item from the list on uninstallation?

[UniTrader]

not reallly sure if it actually works, but here is my approach:

Code: Select all

<cues>
  <cue name="RemoveCockpit">
    <conditions>
      <!-- Uninstall Condition, not sure what to use - best use some event and no check_value so no polling is done -->
    </conditions>
    <actions>
      <do_all exact="$MechanicNewItemList.count" counter="$Counter">
        <remove_value name="md.$CockpitUpgradetraderLists.{1}.{md.$CockpitUpgradetraderLists.{1}.indexof.{$MechanicNewItemList.{$Counter}}}" />
      </do_all>
    </actions>
  </cue>
</cues>

note that this has to be executed before the Mod is uninstalled because the Script is no longer existent when the Mod is removed.
Alternatively it may be wiser to add a Validation of all Trader Lists on Game Loading to remove non-existent Items from them in a seperate Extension...

[oliverjanda]

Thanks, I tried exactly the same md script but can't start it atm.
I'm trying to start it via a sidebar entry but i can't get it to show up.
No error message either. never did lua before...