serumTest

mg = peripheral.wrap("left")

local numSerums = 0

function checkFuel()
   local f = turtle.getFuelLevel()
   if (f < 10) then
      turtle.turnLeft()
      turtle.turnLeft()
      turtle.forward()
      while (f < 10) do
         sleep(10)
      end
      turtle.turnLeft()
      turtle.turnLeft()
      turtle.forward()
   end
end

function processSerums()
   local serum, state

   for serum=1,numSerums do
      print ("Processing serum #"..tostring(serum))
      turtle.select(serum)
      turtle.drop()
      repeat
         sleep(5)
         state = mg.get()
      until (state["Is Not Working"] and state["Energy Stored"] and state["Liquid in Tank"])
      turtle.suck()
   end
end

function getSerums()
   local serum, flag

   numSerums = 0
   turtle.select(1)

   while turtle.suck() do
      numSerums = numSerums + 1
   end
end

function doWork()
   local serum
   print ("Checking fuel level...")
   checkFuel()
   print ("Done")

   print ("Getting serums...")
   turtle.turnRight()
   getSerums()
   turtle.turnLeft()
   if (numSerums < 1) then
      print ("Nothing to do!")
      return
   end
   print ("Done")

   turtle.turnLeft()
   turtle.forward()
   turtle.forward()
   turtle.turnRight()

   print ("Refilling serums...")
   processSerums()
   print ("Done")

   turtle.turnRight()
   turtle.forward()
   turtle.forward()
   turtle.turnLeft()

   print ("Purifying serums...")
   processSerums()
   print ("Done")

   print ("Returning serums...")
   turtle.up()
   turtle.turnRight()
   turtle.forward()
   for serum=1,numSerums do
      turtle.select(serum)
      turtle.drop()
   end
   turtle.back()
   turtle.down()
   turtle.turnLeft()
   print ("All done!")
end

checkFuel()

while true do
  os.pullEvent("redstone")
  print ("Redstone event!")
  local val = redstone.getBundledInput("bottom")
  if (colors.test(val, colors.red)) then
     print ("Start work")
     doWork()
     rs.setBundledOutput("bottom", colors.green)
     rs.setBundledOutput("bottom", 0)
  end
end