View difference between Paste ID: r7Cr1418 and GKpAi4fn

--- tunnelbuilder <distance>
+-- bridge <distance>
 -- needs building material in the first slot (eg. cobblestone)
 -- more building material can be supplied in other slots too if needed
--- turtle will build the top row (with ceiling) first, then turn around, drop below and build the floor
+
--- tunnel height will be 2 +1 ceiling +1 floor
+
 local args = { ... }
 local distance = 0
 if #args ~= 1 then
 	print("Usage: bridge<distance>")
 	error()
-	print("Usage: tunnelbuilder <distance>")
+
 distance = args[1]
 if turtle.getFuelLevel() < 1*distance then
 	print("Not enough fuel to build the specified distance")
-if turtle.getFuelLevel() < 2*distance then
+
 end
 -- ---------------------------------------------------------------------
 function reorderWalls()
 	for i = 1,16 do
 		if i~=WALL_SLOT then
 			turtle.select(i)
 			-- os.sleep(0.1)
 			if turtle.compareTo(WALL_SLOT) and (turtle.getItemCount(i)>0) then
-			os.sleep(0.1)
+
 					-- os.sleep(0.01)
 				end
 			end
 		end
 	end
 	turtle.select(WALL_SLOT)
 end
 
 function suckAll()
 	local i = 1
 	while i <= 16 and (i==WALL_SLOT or turtle.getItemSpace(i)==0) do
 		i = i + 1
-	while i < 17 and (i==WALL_SLOT or turtle.getItemSpace(i)==0) do
+
 	if i <= 16 then
 		turtle.select(i)
-	turtle.select(i)
+		turtle.suck()
-	turtle.suck()
+		turtle.suckUp()
-	turtle.suckUp()
+		turtle.suckDown()
-	turtle.suckDown()
+		reorderWalls()
-	reorderWalls()
+
 	turtle.select(WALL_SLOT)
 end
 
 function wall()
 	turtle.select(WALL_SLOT)
 	while turtle.detect() and not turtle.compare() do
 		turtle.dig()
-		suckAll()
+		-- suckAll()
 	end
 	turtle.select(WALL_SLOT)
 	if not turtle.compare() then
-		turtle.place()
+		while not turtle.place() do
 			turtle.dig()
 		end
-function wallUp()
+
 end
-	while turtle.detectUp() and not turtle.compareUp() do
+
 	turtle.select(WALL_SLOT)
-		suckAll()
+
 		turtle.digDown()
 		-- suckAll()
-	if not turtle.compareUp() then
+
-		turtle.placeUp()
+
 	if not turtle.compareDown() then
 		while not turtle.placeDown() do
 			turtle.digDown()
 		end
 	end
 end
-		suckAll()
+
 -- ---------------------------------------------------------------------
 local stepsSinceReorder = 21
 
-		turtle.placeDown()
+
 	if stepsSinceReorder>20 then
 		reorderWalls()
 		stepsSinceReorder = 0
 		turtle.select(WALL_SLOT)
-reorderWalls()
+		if turtle.getItemCount() < 3 then
 			print("not enough building blocks")
 			error()
 		end
 	end
 	while not turtle.forward() do
 		turtle.dig()
 		-- suckAll()
 	end
 	wallDown()
 	while turtle.detectUp() do
 		turtle.digUp()
-	wallUp()
+		-- suckAll()
 	end
 	turtle.turnLeft()
--- turn around and drop
+
-turtle.turnRight()
+
-turtle.turnRight()
+
-while not turtle.down() do
+
-	turtle.digDown()
+
-	suckAll()
+	stepsSinceReorder = stepsSinceReorder+1
 end
 print("bridge built")