View difference between Paste ID: E6ip9eLL and d9S9Xrzc

 function fuel()
   if turtle.getFuelLevel() < 30 then
     turtle.select(1)
     if turtle.refuel(1) then
       return true
     end
     print("Refuelling failed.")
     return false
   end
 end
 
 function right()
   turtle.turnRight()
 end
 
 function left()
   turtle.turnLeft()
 end
 
 function forward()
   while not turtle.forward() do
     if not turtle.dig() then
       turtle.attack()
     end
   end
 end
 
 function shiftRight()
   right()
   forward()
   left()
 end
 
 function shiftLeft()
   left()
   forward()
   right()
 end
 
 function shiftNRight(n)
   right()
   for i=1,n,1 do
     forward()
   end
   left()
 end
 
 function shiftNLeft(n)
   left()
   for i=1,n,1 do
     forward()
   end
   right()
 end
 
 function dig()
   if turtle.detect() then
     turtle.dig()
   end
 end
 
 function dump(start_point,end_point)
   for i=start_point,end_point,1 do
     turtle.select(i)
     turtle.drop()
   end
 end
 
 function find(id)
   for i=1,16,1 do
     local data = turtle.getItemDetail(i)
     if data and  data.name == id then
       return i
     end
   end
   return 0
 end
 
 function turnAround()
   right()
   right()
 end
 
 function fif(val, a, b)
   if val then a() else b() end
 end
 
 function fifFlip(val, a, b)
   if val then a() else b() end
   return not val
 end
 
 function move(len)
   for i=1,len,1 do
     fuel()
     forward()
   end
 end
 
-while(find("minecraft:stonebrick") > 0) do
+function digFrontandRight()
-  turtle.select(find("minecraft:stonebrick"))
+  turtle.dig()
   right()
   turtle.dig()
   left()
 end
 
 local blocktype
 local torchstand
 local args = {...}
 local lengthcount = 0
 
 if #args < 1 then
   blocktype = "minecraft:stonebrick"
 else
   blocktype = "minecraft:" .. args[1]
 end
 
 if #args < 2 then
   torchstand = "minecraft:cobblestone"
 else
   torchstand = "minecraft:" .. args[2]
 end
 
 
 while(find(blocktype) > 0) do
   lengthcount = lengthcount + 1
   fuel()
   -- clear two blocks above for walkability
   digFrontandRight()
   turtle.up()
   digFrontandRight()
   turtle.up()
   digFrontandRight()
 
   -- return
   turtle.down()
   turtle.down()
 
   -- put torch
   if (lengthcount % 8 == 0) then
     if (find("minecraft:torch") > 0) then
       right()
       forward()
       forward()
       if (find(torchstand)) then
         turtle.select(find(torchstand))
         -- else use selected floor block
       end
       turtle.dig()
       turtle.place()
       turtle.digUp()
       turtle.up()
       turtle.dig()
       turtle.select(find("minecraft:torch"))
       turtle.place()
       turnAround()
       forward()
       forward()
       turtle.down()
       right()
     end
   end
 
   -- build road
   turtle.select(find(blocktype))
   turtle.digDown()
   right()
   turtle.dig()
   turtle.digDown()
   turtle.down()
   turtle.dig()
   turtle.place()
   turtle.up()
   turtle.placeDown()
   left()
   forward()
 
 end