QuarryHelp

-- -------------------------------------------------------------------------- --
-- QuarryHelp : PVFXQTix
--
-- Turtle script to place two landmarks at 64 blocks from the starting point,
-- at right angles to each other.  This is handy for setting up huge quarries.
--
-- -------------------------------------------------------------------------- --
--
-- INVENTORY:
-- [1][2][3][4]
-- [5][6][7][8]
-- [9][A][B][C]
-- [D][E][F][0]
--
-- 1 : Fuel (>3 coal)
-- 2 : Landmark (>2)
-- 3 : Filler (>2)
-- 4-0 : n/a
--
-- -------------------------------------------------------------------------- --

local tArgs = { ... }
local goLeft

local function PrintHelp()
  print( "Usage:" )
  print( "QuarryHelp <l|r>" )
  print( "  l -- place second marker to the LEFT." )
  print( "  r -- place second marker to the RIGHT." )
  return
end

local function CheckFuel()
    if turtle.getFuelLevel() < 64 and turtle.getItemCount( 1 ) > 1 then
      turtle.select( 1 )
      turtle.refuel( 1 )
    end
    return
end

-- Check the commandline
if not #tArgs == 1 then
  PrintHelp()
  return
end

if tArgs[ 1 ] == "r" then
  print( "Will go RIGHT." )
  goLeft = false
elseif tArgs[ 1 ] == "l" then
  print( "Will go LEFT." )
  goLeft = true
else
  PrintHelp()
  return
end

-- Go 64 forward.
for step = 1, 63 do
  while turtle.detect() do
    turtle.dig()
  end
  CheckFuel()
  turtle.forward()
  while turtle.detectUp() do
    turtle.digUp()
  end
end
print( "64 from start." )

-- Check for solid ground for landmark.
if not turtle.detectDown() then
  print( "No floor here..." )
  turtle.select( 3 )
  turtle.placeDown()
end

-- Place marker
print( "MARK." )
CheckFuel()
turtle.back()
turtle.select( 2 )
turtle.place()

-- Go back to start.
print( "Going back." )
for step = 2, 63 do
  CheckFuel()
  turtle.back()
end

-- Repeat at 90o
if goLeft then
  print( "Starting LEFT arm" )
  turtle.turnLeft()
else
  print( "Starting RIGHT arm" )
  turtle.turnRight()
end

-- Go 64 forward.
for step = 1, 63 do
  while turtle.detect() do
    turtle.dig()
  end
  CheckFuel()
  turtle.forward()
  while turtle.detectUp() do
    turtle.digUp()
  end
end
print( "64 from start again." )

-- Check for solid ground for landmark.
if not turtle.detectDown() then
  print( "No floor here..." )
  turtle.select( 3 )
  turtle.placeDown()
end

-- Place marker
print( "MARK." )
CheckFuel()
turtle.back()
turtle.select( 2 )
turtle.place()

-- Go back to start.
print( "Going back." )
for step = 2, 63 do
  CheckFuel()
  turtle.back()
end

print( "MARK." )
turtle.up()
turtle.select( 2 )
turtle.placeDown()
if goLeft then
  turtle.turnRight()
else
  turtle.turnLeft()
end


-- Done.