GauFlattener v0.2

local args = { ... }
local xMax = tonumber(args[1])
local yMax = tonumber(args[2])



if #args < 2 then
  xMax = 7
  yMax = 7
end

if ( xMax < 7 ) then xMax = 7 end
if ( yMax < 7 ) then yMax = 7 end

local fuelNeeded = yMax * xMax * 4 + yMax * 3 + xMax * 3
if ( turtle.getFuelLevel() < fuelNeeded ) then
  print("Not enough fuel, need at least " .. fuelNeeded .. " to make a maze of that size")
  return
end

local selection = 1
turtle.select(selection)


function tryForward()
  if ( turtle.forward() == false ) then
    print("Get out of my way!!")
    while ( turtle.forward() == false ) do
      os.sleep(2)
    end
  end
end


function selectBlock()
  if ( selection == 16 ) then return end

  while ( turtle.getItemCount(selection) <= 0 ) do
    if ( selection == 16 ) then return end
    selection = selection + 1
    turtle.select(selection)
  end
end


function DropBlock()
  selectBlock()
  turtle.placeDown()
end


function CutZLevel(addFloor)
  local x = 1
  while ( x <= xMax ) do
    local y = 1
    while ( y < yMax ) do
      if ( addFloor ) then DropBlock() end
      turtle.dig()
      tryForward()
      y = y + 1
    end
    if ( addFloor ) then DropBlock() end
    x = x + 1
    if ( x > xMax ) then
      turtle.up()
      turtle.turnLeft()
      turtle.turnLeft()
    else
      if ( x % 2 == 1 ) then
        turtle.turnRight()
        turtle.dig()
        tryForward()
        turtle.turnRight()
      else
        turtle.turnLeft()
        turtle.dig()
        tryForward()
        turtle.turnLeft()
      end
    end
  end
end

function ReturnHome()
  local i = 1
  while ( i < yMax ) do
    tryForward()
    i = i + 1
  end
  turtle.turnLeft()
  i = 1
  while ( i < xMax ) do
    tryForward()
    i = i + 1
  end
  turtle.turnLeft()
end

CutZLevel(true)
ReturnHome()