[CC] Switchboard Endpoint

-- Implementation of a redstone switchboard endpoint.
-- The client controls the actual device that is being turned on or off.
-- The switchboard controller is responsible for setting and querying the client's state.

-- Configuration variables.
local sModemSide = "right"
local sRedstoneSide = "top"
local sName = "Spawners"

-- State variables.
local bOutputState = false

-- Local variables.
local nSenderID
local tMessage

print("Switchbarod endpoint initializing...")

-- Initialize.
rednet.open(sModemSide)

-- Do an initial broadcast, to announce we're here.
rednet.broadcast({Name=sName, State=bOutputState}, "switchboard")

print("Ready.")

-- Message loop.
while true do
    nSenderID, tMessage = rednet.receive("switchboard")

    if tMessage.Command == "set" then
        -- Turn output on or off.
        if tMessage.State == true then
            print("Turning output on.")
            redstone.setAnalogOutput(sRedstoneSide, 15)
            bOutputState = true
        else
            print("Turning output off.")
            redstone.setAnalogOutput(sRedstoneSide, 0)
            bOutputState = false
        end

        -- Update the controller's state.
        rednet.send(nSenderID, {Name=sName, State=bOutputState}, "switchboard")
    elseif tMessage.Command == "get" then
        -- Get the current output state.
        rednet.send(nSenderID, {Name=sName, State=bOutputState}, "switchboard")
    elseif tMessage.Command == "kill" then
        -- Kills the endpoint, leaving it in it's current output state.
        print("Termination request!")
        break
    end
end

-- Uninitialize.
rednet.close(sModemSide)

print("Switchboard endpoint terminated.")