command /fence <world>:
	permission: skript.op
	trigger:
		set {_Loc} to location at (-49.5), 255, (-49.5) of (arg-1)
		while block at {_Loc} is air:
			set {_Loc} to location 1 below {_Loc}
		loop 100 times:
			add 1 to {_Total}
			loop blocks from block at {_Loc} to block at location 100 east of {_Loc}:
				add 1 to {_Time}
				if {_Time} is 100:
					set {_Time} to 0
					broadcast "[Fenced] %{_Total}%/100"
					wait 1 tick
				add 1 to {_Count}
				if {_Count} is 2:
					set {_Fence} to location at ((x-coordinate of loop-block), 255, (z-coordinate of loop-block))
					while block at {_Fence} is air:
						set {_Fence} to location 1 below {_Fence}
						if y-coordinate of {_Fence} is less than 3:
							stop loop
					set block at location 1 above {_Fence} to fence
					set {_Count} to 0
			set {_Loc} to location 1 south of {_Loc}
		broadcast "[Fenced] Generation completed!"