cleric

-- just dump one item each from the first (four)six slots, wait for signal change from one to two and than throw down a piece of living rock from slot 16

local signalSide = "back"
local function checkSignal()
  return rs.getAnalogInput(signalSide)
end

local pistonSide = "right"
local function piston(onOff)
  rs.setOutput(pistonSide,onOff)
end

local itemPattern = {1,2,3,4}
local extPattern = {5,6}
local finalReagent = {16}

local function checkInv(pattern)
  for _,k in pairs(pattern) do
    if turtle.getItemCount(k) == 0 then
      return false
    end
  end
  return true
end

local function checkInventory()
  return checkInv(itemPattern)
end

local function checkExtInv()
  return checkInv(extPattern)
end

local function checkReagent()
  return checkInv(finalReagent)
end

local function checkNWait(pattern)
  if not checkInv(pattern) then
    print("Waiting for items: ingredients in slots 1-6 and living rock in slot 16")
    local event = os.pullEvent("turtle_inventory")
    while not checkInv(pattern) do sleep(1) end
  end
  return checkInv(pattern)
end

local function dropItems(pattern)
  for _,k in pairs(pattern) do
    turtle.select(k)
    turtle.drop(1)
    sleep(0.5)
  end
end

local function wait2sOrSignal1()
  sleep(1)
  if checkSignal() == 1 then return true end
  sleep(1)
  if checkSignal() == 1 then return true else return false end
end

local function finishRecipe()
  checkNWait(finalReagent)
  print("Finishing Runic Altar Creation")
  sleep(1)
  dropItems(finalReagent)
  sleep(1.5)
  piston(true)
  sleep(3.5)
  piston(false)
end

piston(false)

while true do
  if checkSignal() == 0 then
    checkNWait(itemPattern)
    dropItems(itemPattern)
    if checkSignal() == 0 then
      if not wait2sOrSignal1() then
        checkNWait(extPattern)
        dropItems(extPattern)
        wait2sOrSignal1()
      end
    end
  end
  if checkSignal() == 1 then
    local event = os.pullEvent("redstone")
    if checkSignal() == 2 then
      finishRecipe()
    end
  elseif checkSignal() == 2 then
    finishRecipe()
  elseif checkSignal() > 2 then
    print("Weird Signal Alert: ", checkSignal())
  end
  sleep(2)
  print("Starting next item creation")
end