on rightclick on a cobblestone with a stone pickaxe:
	cancel event
	add 1 to {%player%.stage}
	if floor({%player%.stage}/5)-floor(({%player%.stage}-1)/5) is not 0:
		show block break stage floor({%player%.stage}/5) at target block to all players
	if {%player%.stage} >= 50:
		break event-block
		set {%player%.stage} to 0