Steam Boiler

local command

command = read()
term.clear()
term.setCursorPos(1,1)

if command == "run creosote" then
  print("Startig up creosote boiler!")
  rs.setOutput("left", true)
  rs.setOutput("right", false)
  sleep(300)
  rs.setAnalogOutput("back", 0)
  end

if command == "run coal" then
  print("Starting up coal boiler")
  rs.setOutput("right", true)
  rs.setOutput("left", false)
  sleep(300)
  rs.setAnalogOutput("back", 0)

end

------------------------------------------------

if command == ("run creosote") then

   print("3 engines are now active!")
   rs.setAnalogOutput("back", 3)
   sleep(300)


   print("9 engines are now active!")
   rs.setAnalogOutput("back", 6)
   sleep(300)

   print("All engines active!")
   rs.setAnalogOutput("back", 15)
end


if command == ("run coal") then

   print("3 engines are now active!")
   rs.setAnalogOutput("back", 3)
   sleep(300)


   print("9 engines are now active!")
   rs.setAnalogOutput("back", 6)
   sleep(300)

   print("All engines active!")
   rs.setAnalogOutput("back", 15)
end

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if command == "exit" then
  print("Shutting down steam boiler")
  rs.setOutput("right", false)
  rs.setOutput("left", false)
  print("Using up steam, 18/18 engines active")
  sleep(300)
  rs.setAnalogOutput("back", 6)
  print("Using up steam, 9/18 engines active")
  sleep(300)
  rs.setAnalogOutput("back", 3)
  print("Using up steam, 3/18 engines active")
  sleep(300)
  rs.setAnalogOutput("back", 0)
  print("All engines deactivated!")
end

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shell.run(startup)