--Simple Warning Light Program for ComputerCraft
--by SemlerPDX Dec2016
--Relays EnderIO Signal (right) to BluePower Inverted Lamp (left)


--vars
On = true
Unsafe = false


--funcs
function fSet()
  term.clear()
  term.setCursorPos(1,1)
end

function fOn()
  rs.setOutput("left",false)
  On = true
end

function fOff()
  rs.setOutput("left",true)
  On = false
end

function fBlink()
  for i = 1, 10 do
    fOn()
    sleep(0.75)
    fOff()
    sleep(0.75)
  end
end


--mains
function Main()

  while true do
    
    Unsafe = rs.getInput("right")

    if (Unsafe) and not (On) then
      fSet()
      print("unsafe")
      fBlink()
      fOn()
    end
   
    if not (Unsafe) and (On) then 
      fSet()
      print("safe")
      fBlink()
      fOff()
    end

    sleep(6)

  end

end


--inits
fSet()
print("checking safety...")
sleep(0.75)


Main()