P1 iron: nuggets, ore, clay, kiln, smelter, forge, iron tools and arrows, lantern, tool wear and repair

scripts/world/pickup.gd

@@ -35,6 +35,7 @@ func interact(player: Node) -> void:
 signal taken_now(pickup: Node)
 
 var dropped := false  ## dropped by the player (arrows, spears): saved, never regrows
+var extra: Dictionary = {}   ## kept when it's picked up (a worn spear's "dur")
 
 ## Picked up: hidden (not freed) so it can reappear later (props.gd regrowth).
 ## Dropped items just go.