View difference between Paste ID: nYygXb73 and cQ8656ZL

 function Topup()
     function Fuel()
         while turtle.getFuelLevel() < 5000 do
             turtle.select(16)
             while turtle.placeUp() == false do
                 turtle.digUp()
                 turtle.attackUp()
             end
             turtle.select(15)
             turtle.suck(64)
             turtle.refuel(64)
             turtle.select(16)
         end
     end
     --Fuel()
     while turtle.getFuelLevel() < 100 do
         print("GIMME FUEL")
         turtle.select(15)
         turtle.refuel(64)
         sleep(1)
     end
     turtle.select(1)
     while turtle.getItemCount() <= 1 do
         turtle.select(16)
         while turtle.placeUp() == false do
             turtle.digUp()
             turtle.attackUp()
         end
         turtle.select(1)
         turtle.suckUp(63)
         turtle.select(16)
         turtle.digUp()
         turtle.select(1)
     end
 end
 
 local sslt = 0
 while true do
     Topup()
     turtle.place()
     if turtle.back() == false then
         turtle.turnLeft()
         if sslt == 0 then
             turtle.up()
             turtle.placeDown()
             break
         end
         sslt = 0
     else
         sslt = sslt + 1
     end
 end