tunnel3

print("This program digs tunnel 3x3") --and even put every 5 blocks torch on wall
print("Important ! place torches in slot 1 and solid block to slot 2 !")
print("How long tunnel do you want ? ")
local x = read()
local times = 0
print("Digging "..x.." blocks long tunnel")
turtle.turnLeft()
while not turtle.forward() do
  turtle.dig()
end
turtle.turnRight()


for i = 1, x do

  while not turtle.forward() do
    turtle.dig()
  end

  turtle.turnRight()

 for j = 1, 2 do
  for i = 1, 2 do
    while not turtle.forward() do
      turtle.dig()
    end
  end
  turtle.turnLeft()
  turtle.turnLeft()
  while not turtle.up() do
    turtle.digUp()
  end
 end

 for k = 1, 2 do
   while not turtle.forward() do
    turtle.dig()
   end
 end

 turtle.turnLeft()
 turtle.turnLeft()
 while not turtle.down() do
 turtle.digDown()
 end
if math.fmod(times,5) == 0 then
  for u = 1, 2 do
   while not turtle.forward() do
     turtle.dig()
   end
  end
 if not turtle.detect() then
  turtle.select(2)
  turtle.place()
 end
  turtle.select(1)
  turtle.turnLeft()
  turtle.turnLeft()
  while not turtle.forward() do
  turtle.dig()
  end
  turtle.turnLeft()
  turtle.turnLeft()
  turtle.place()
  while not turtle.down() do
  turtle.digDown()
  end
  while not turtle.forward() do
  turtle.dig()
  end
else
 while not turtle.down() do
  turtle.digDown()
 end
 for l = 1, 2 do
   while not turtle.forward() do
     turtle.dig()
   end
 end
end
 turtle.turnRight()
times = times + 1
print("Fuel left: "..turtle.getFuelLevel())
--trash
local filled = 0
  for q = 3, 16 do
     if turtle.getItemCount(q) >= 1 then
    filled = filled + 1
    end
  end

  if filled > 8 then
   turtle.turnRight()
   while not turtle.forward() do
     turtle.dig()
   end
   turtle.turnRight()
   for z = 1, times do
         while not turtle.forward() do
           turtle.dig()
     end
   end
   for t = 3, 16 do
     turtle.select(t)
     turtle.drop()
   end
   filled = 0
   turtle.turnRight()
   turtle.turnRight()
   for w = 1, times do
     while not turtle.forward() do
      turtle.dig()
     end
   end
   turtle.turnLeft()
    while not turtle.forward() do
     turtle.dig()
    end
   turtle.turnRight()
  end
--trashend
end
turtle.turnRight()
while not turtle.forward() do
  turtle.dig()
end
turtle.turnLeft()
print("And done")
local fuelstate = turtle.getFuelLevel()
print("I have "..fuelstate.." fuel")

if fuelstate < 1000 then
print("Please refuel me")
end