View difference between Paste ID: eBH6xaP9 and SNXdXJmZ

 local tArgs = { ... }
 
 if #tArgs ~= 2 then
         print( "Usage: stairs <depth>, <length>" )
         return
 end
 
 local depth = tonumber( tArgs[1] )
 if depth < 1 then
         print( "stair depth must be positive" )
         return
 end
 
 local length = tonumber( tArgs[2] )
 if length < 1 then
         print( "stair length must be positive" )
         return
 end
 
-local function digForward()
+
-  while (turtle.detect()) do
+
-    turtle.dig()
+
-    sleep(0.2)
+
 end
 
 local fuelLevel = turtle.getFuelLevel()
-local function digUp()
+
-  while (turtle.detectUp()) do
+
  return
-    sleep(0.2)
+
 
 print("stairs "..depth.." x "..length)
 
 local curDepth = 0
 turtle.select(1)
 
 
 while (curDepth < depth) do
   for i=1,length do
 
     turtle.digUp()
     turtle.up()
     turtle.digUp()
 
     turtle.dig()
     turtle.forward()
 
     if (curDepth == depth) then
       return
     end
 
     curDepth = curDepth + 1
-    digForward()
+
   turtle.turnRight()
-    turtle.digDown()
+
-    digUp()
+
 turtle.turnRight()
-    if (not turtle.detectDown()) then
+
-      turtle.placeDown()
+
-    else
+
-      if (not turtle.compareDown()) then
+
-        turtle.digDown()
+
-        turtle.placeDown()
+
-      end
+
 
     curDepth = curDepth + 1
     if (curDepth == depth) then
       return
     end
   end
   turtle.turnLeft()
 end