Supply lab research with transporters

GameState.gd

@@ -670,6 +670,9 @@ func outstanding_cost(id: int) -> int:
 		# A started build has already paid, so it is not still owed.
 		if not bool(o.started):
 			need += product_cost(String(o.product))
+	for order in b.get("research_orders", []):
+		if not bool(order.started):
+			need += research_cost(String(order.id))
 	return maxi(need - _inventory_for_record(b).amount(RESOURCE_ORE), 0)
 
 
@@ -771,6 +774,11 @@ func lab_research_order(lab_id: int) -> Dictionary:
 	return {} if orders.is_empty() else orders[0]
 
 
+func research_cost(id: String) -> int:
+	var unlock_definition: Resource = vessel_for_unlock(id)
+	return unlock_definition.unlock_cost if unlock_definition != null else upgrade_cost(id)
+
+
 func _advance_lab_research(delta: float) -> void:
 	for lab in buildings:
 		if not building_has_capability(lab, "vessel_research"):
@@ -781,7 +789,7 @@ func _advance_lab_research(delta: float) -> void:
 		var order: Dictionary = orders[0]
 		var id: String = String(order.id)
 		var unlock_definition: Resource = vessel_for_unlock(id)
-		var cost: int = unlock_definition.unlock_cost if unlock_definition != null else upgrade_cost(id)
+		var cost: int = research_cost(id)
 		var inventory: RefCounted = _inventory_for_record(lab)
 		if not bool(order.started):
 			if inventory.amount(RESOURCE_ORE) < cost: