View difference between Paste ID: BHGp2V48 and RRMkQrvf

 -- -------------------------------------------------------------------------- --
--- NetherTower : RRMkQrvf
+-- Strip Miner : BHGp2V48
 --
--- Turtle script to build a 3x3 tower to the Nether ceiling -- beware of falling
+-- Turtle script to dig out a strip mine. Starting from initial position a
--- lava!!!
+-- 1x2x8 tunnel is dug out with a torch either end, bridging gaps. At the end of
 -- each tunnel the turtle will dig out 3 to the left and then start the next
 -- 1x2x8 tunnel to the left again. This is repeated 'till we're out of fuel, torches
 -- or room.
 --
 -- -------------------------------------------------------------------------- --
 --
 -- INVENTORY:
 -- [1][2][3][4]
 -- [5][6][7][8]
 -- [9][A][B][C]
--- Rest should be tower material.
+
 --
 -- 1 : Fuel
 -- 2 : Torches
-local tArgs = { ... }
+-- 3 : Bridge material
-local height = 0
+-- 4 :
 -- Rest should be empty.
-local function PrintHelp()
+
-  print( "Usage:" )
+
-  print( "NetherTower <height>" )
+
-  print( "  height -- starting height of turtle." )
+
   if turtle.getFuelLevel() < 64 and turtle.getItemCount( 1 ) > 1 then
     turtle.select( 1 )
     turtle.refuel( 1 )
   end
   return
 end
 
 local function PlaceTorch()
   if turtle.getItemCount( 2 ) > 1 then
     turtle.select( 2 )
     turtle.place()
--- Check the commandline
+
-if not #tArgs == 1 then
+
-  PrintHelp()
+
 
 local function DigBranch()
   for step = 1, 9 do
-if tArgs[ 1 ] > "0" then
+    while turtle.detect() do
-  height = tArgs[ 1 ]
+      turtle.dig()
-else
+    end
-  PrintHelp()
+    turtle.forward()
     while turtle.detectUp() do
       turtle.digUp()
     end
     while not turtle.detectDown() do
--- Start with main shaft.
+      turtle.select( 3 )
-for step = height, 128 do
+      turtle.placeDown()
     end
     CheckFuel()
   end
   return
-  turtle.up()
+
-  if not turtle.detect() then
+
 local function DigTurn()
   while turtle.detect() do
     turtle.dig()
   end
-turtle.turnLeft()
+  turtle.forward()
-if not turtle.detect() then
+
-  turtle.select( 2 )
+  turtle.turnLeft()
-  turtle.place()
+  turtle.turnLeft()
   PlaceTorch()
-for step = height, 128 do
+  turtle.turnLeft()
-  turtle.down()
+  turtle.turnLeft()
-  if not turtle.detect() then
+
   while turtle.detectUp() do
     turtle.digUp()
   end
   while not turtle.detectDown() do
     turtle.select( 3 )
     turtle.placeDown()
   end
   while turtle.detect() do
     turtle.dig()
   end
   turtle.forward()
 
   while turtle.detectUp() do
     turtle.digUp()
   end
   while not turtle.detectDown() do
     turtle.select( 3 )
     turtle.placeDown()
   end
   while turtle.detect() do
     turtle.dig()
   end
   turtle.forward()
   while turtle.detectUp() do
     turtle.digUp()
   end
   CheckFuel()
   return
 end
 
 -- Start
 CheckFuel()
 while turtle.getFuelLevel() > 16 and turtle.getItemCount( 1 ) > 1 and turtle.getItemCount( 2 ) > 1 do
   DigBranch()
   turtle.turnLeft()
   DigTurn()
   turtle.turnLeft()
 
   DigBranch()
   turtle.turnRight()
   DigTurn()
   turtle.turnRight()
 end