Quarry3x3

--Quarry3x3 by Fatboychummy (Or Fatmanchummy; depends where you look).
--Changelog and stuff can be found online on the computercraft forums.  (No link yet) (Find it under the Turtle Programs subforum)


term.clear()
term.setCursorPos(1,1)
print("Starting up.")

turtle.select(16)
if turtle.refuel(0) == true then

  turtle.refuel(3)

end


function Start()
  print("Detecting surroundings")


  local std = turtle.detectDown()
  local stf = turtle.detect()
  turtle.turnRight()
  local str = turtle.detect()
  turtle.turnRight()
  local stb = turtle.detect()
  turtle.turnRight()
  local stl = turtle.detect()
  turtle.turnRight()

  if std == true then

    print("First detected: beneath")
    Ground()

  elseif stf == true then

    print("First detected: Forwards")
    turtle.dig()
    turtle.forward()
    Ground()

  elseif str == true then

    print("First detected: Right")
    turtle.turnRight()
    turtle.dig()
    turtle.forward()
    Ground()

  elseif stb == true then

    print("First detected: Rear")
    turtle.turnRight()
    turtle.turnRight()
    turtle.dig()
    turtle.forward()
    Ground()

  elseif stl == true then

    print("First detected: Left")
    turtle.turnLeft()
    turtle.dig()
    turtle.forward()
    Ground()

  else

    print("Nothing detected.  Moving downwards until something is detected.")
    findGround()
  end
end

function findGround()

  while turtle.detectDown() == false do

    turtle.down()

  end

  Ground()

end


function Ground()

  while true do
local derp = turtle.getFuelLevel()


print(derp)

turtle.select(16)
wat = turtle.getFuelLevel()
if wat < 300 then

  if turtle.refuel(0) == true then

    while wat < 3000 do

      turtle.refuel(1)
      os.sleep(0.1)
      wat = turtle.getFuelLevel()
      print("current fuel: ", wat)

    end

  end

end

  print("Moving down 3 blocks")
    for i = 1,3 do

      if turtle.detectDown() == true then

        turtle.digDown()
        turtle.down()

      else

        turtle.down()

      end

    end

    print("Beginning first section (1/5)")
    turtle.digDown()
    turtle.dig()
    turtle.forward()
    turtle.dig()
    turtle.digDown()
    turtle.digUp()
    turtle.turnRight()
    turtle.dig()
    turtle.turnLeft()
    turtle.forward()
    turtle.turnRight()

    print("Beginning second section (2/5)")

    for i = 1,2 do

      turtle.dig()
      turtle.digUp()
      turtle.digDown()
      turtle.forward()

    end
    print("Beginning third section (3/5)")
    turtle.turnRight()
    for i = 1,2 do

      turtle.dig()
      turtle.digUp()
      turtle.digDown()
      turtle.forward()

    end

    print("Beginning fourth section (4/5)")
    turtle.turnRight()
    for i = 1,2 do

      turtle.dig()
      turtle.digUp()
      turtle.digDown()
      turtle.forward()

    end

    print("Finished this section, removing center.")




    turtle.turnRight()
    turtle.forward()
    turtle.turnRight()
    turtle.up()
    turtle.dig()
    turtle.down()
    turtle.down()
    turtle.dig()
    turtle.up()
    turtle.back()
    turtle.turnLeft()
    turtle.back()



  end

end






Start()