[CC] Branch Mining Program [Remade]

term.clear()
term.setCursorPos(1, 1)
print("This digs a 1x2 tunnel, and places torches!")
term.clear()
term.setCursorPos(1, 1)

local tArgs = { ... }

local a = 0

function drop()
  for i=1, 16 do
    turtle.select(i)
    turtle.drop()
  end
end

function amount()
 turtle.select(2)
  if turtle.getItemCount(2) == 0 then
    turtle.select(3)
  elseif turtle.getItemCount(3) == 0 then
    turtle.select(4)
  end
end

function fill()
  turtle.turnLeft()
  amount()
  turtle.place()
  turtle.placeDown()
  turtle.up()
  turtle.place()
  turtle.turnLeft()
  turtle.turnLeft()
  turtle.placeUp()
  turtle.place()
  turtle.down()
  turtle.place()
  turtle.turnLeft()
end

for i = 1,tArgs[1] do
  turtle.dig()
  turtle.digUp()
  fill()
  if turtle.forward() == true then
    a = a + 1
  elseif turtle.forward() == false then
    repeat
      turtle.dig()
      sleep(0.5)
    until turtle.detect() == false
  end

if a == 5 then
 turtle.select(1)
 turtle.placeUp()
 turtle.forward()
 a = a - 5
end
end

turtle.turnLeft()
turtle.turnLeft()

for i=1,tArgs[1] do
  turtle.forward()
end

drop()