Ok I realise this might be slightly much to ask from the XML Spawner but it seemed to me that if anything could do this it would be XMLS2.
I'm interested in writing some complex NPC "AI" that will give NPCs routines. Things such as having NPCs sat at tables in taverns rambling to each other (talking NPCs are pretty easy, but can they trigger each other?) with a waiter NPC moving form the bar to the table and spawning food/drink at the table then the food/drink being deleted some time after.
As I say this could be a bit much to be trying to do but we'll see.
Maybe setting up a TriggerOnCarried that would check for something in the waiters inventory and then spawn food at the table? I'm not sure, any ideas?
Cheers

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