loop'owanie wartości

Witam mam skrypt na piecyk

on rightclick:
	if event-block is furnace:
		if {piec::%location of event-block%} is false:
			set {_piec} to chest with {piec::rows} rows named {piec::name}
			set {piec::%location of event-block%} to true
			set {furnace::%location of event-block%::open} to 1
			wait 1 tick
			clear {_s}
			open {_piec} to player
			set {_s} to 0
			loop {furnace::%location of event-block%::itemy::*}:
				add 1 to {_s}
				set slot {_s}-1 of player's current inventory to loop-value-1
			while inventory name of current inventory of player is {piec::name}:
				loop {piec::przep::*}:
					loop {piec::paliw::*}:
						while {_piec} has (loop-value-2 of loop-value-1):
							if {_piec} has (loop-index-2 parsed as item):
								remove loop-value-1 from {_piec}
								chance of 50%:
									remove (loop-index-2 parsed as item) from {_piec}
								chance of 70%:
									add 1 melon seeds to {_piec}
								add loop-value-2 of {piec::prods::%loop-index-1%} to {_piec}
								wait {piec::time}
							else:
								exit loop
				wait 1 second
		else:
			cancel event
			send "&4Tylko 1 gracz moze miec otwarty piec"

i chce aby jeśli jest zamknięty to loop co minute i wykonywało się przepalanie

tu zapisuje materiały :{furnace::%location of event-block%::itemy::*}