Kopanie stone

on mine of stone:
	clear drops
	give 1 cobblestone to player

Może zadziała

on mine of stone:
	cancel event
	set event-block to air
	give 1 cobblestone to player

	#ewentualnie
	clear drops
	give 1 cobblestone to player

	#Zeby dropnac zamień "give (...)" na
	drop 1 cobblestone 

Troche nad tym posiedzialem i wykminilem to: 

on mine of cobblestone:
	set {drop} to true
	give 1 cobblestone to player

on item spawn of cobblestone:
	if {drop} is true:
		cancel event
		delete {drop}

Nie da się tego tak zrobić. @krabik ukradłeś mój kod, bo ja kiedyś taki zrobiłem