CC:Tweaked/Create Elevator Control

-- Elevator Control Program
-- Meant to be used in Minecraft with the ComputerCraft and Create mods

locationLighthouse = false  -- If true, the elevator is in the lighthouse.
locationLobby = false       -- If true, the elevator is in the lobby.
locationMoving = false      -- If true, the elevator is moving.

-- Top:     In-Elevator Toggle Button (Redstone Link)
-- Bottom:  Gearshift
-- Left:    Lighthouse Call Button (Redstone Link)
-- Right:   Lobby Call Button (Redstone Link)
-- Front:   Lighthouse Redstone Contact (Redstone Link)
-- Back:    Lobby Redstone Contact (Redstone Link)

print("ELEVATOR CONTROL PROGRAM")

while true do

    local event = os.pullEventRaw()

    if event == "terminate" then
        print("Alrighty, going into maintenance mode!")
        reboot()
    elseif event == "redstone" then
        print("Caught redstone event!")
    else
        os.pullEvent("redstone") -- wait until we get a redstone event
    end

    if locationMoving == true then
        if rs.getInput("front") == true then
            sleep(30)   -- Ensure that all elevator passengers have time to exit the elevator
            locationMoving = false
            locationLighthouse = true
        elseif rs.getInput("back") == true then
            sleep(30)   -- Ensure that all elevator passengers have time to exit the elevator
            locationMoving = false
            locationLobby = true
        end
    else
        if rs.getInput("left") == true then
            if locationLobby == true then
                locationMoving = true
                locationLobby = false
                rs.setOutput("bottom", not rs.getOutput("bottom"))
            end
        elseif rs.getInput("right") == true then
            if locationLighthouse == true then
                locationMoving = true
                locationLighthouse = false
                rs.setOutput("bottom", not rs.getOutput("bottom"))
            end
        elseif rs.getInput("top") == true then
            if locationLighthouse == true then
                locationMoving = true
                locationLighthouse = false
            elseif locationLobby == true then
                locationMoving = true
                locationLobby = false
            end
            rs.setOutput("bottom", not rs.getOutput("bottom"))
        end
    end
end