Real time item counting quest function

[ToroRosso 0]

Could someone help me to write a quest function which is counts the amount of an item in the inventory (in real time) and if u earn for example 10pcs from that item then its removes them and gives another item instead of them?

 

Edited January 22 by ToroRosso

[caanmasu 25]

define SOURCE_VNUM_ITEM 30006
define SOURCE_COUNT_ITEM 10
define TARGET_VNUM_ITEM 30007

quest pick_item begin
	state start begin
		when SOURCE_ITEM.pick with pc.count_item(SOURCE_ITEM) >= SOURCE_COUNT_ITEM begin
			pc.remove_item(SOURCE_VNUM_ITEM, SOURCE_COUNT_ITEM)
			pc.give_item2(TARGET_VNUM_ITEM)
		end
	end
end

[ToroRosso 0]

1 minute ago, caanmasu said:

define SOURCE_VNUM_ITEM 30006
define SOURCE_COUNT_ITEM 10
define TARGET_VNUM_ITEM 30007

quest pick_item begin
	state start begin
		when SOURCE_ITEM.pick with pc.count_item(SOURCE_ITEM) >= SOURCE_COUNT_ITEM begin
			pc.remove_item(SOURCE_VNUM_ITEM, SOURCE_COUNT_ITEM)
			pc.give_item2(TARGET_VNUM_ITEM)
		end
	end
end

 

Yeah, thanks, i just realised an hour ago, the pick function is already exist.