Base Control Client

fails = 0
wither = 0

sides = peripheral.getNames()

modemhere = false

function eventListener()

    local event, p1, p2, p3 = os.pullEvent()

    if event == "rednet_message" and p3 == "ControlComp" then

        if p2[1] == "wither" then wither() end

    end

end

function wither()
    if wither == 0 then
        wither = 1
        redstone.setOutput("bottom", true)
        redstone.setOutput("back", true)
    elseif wither == 1 then
        wither = 0
        redstone.setOutput("bottom", false)
        redstone.setOutput("back", false)
    end
end

for i = 1, #sides do

    thistype = peripheral.getType(sides[i])

    if thistype == "modem" then

        print("Modem found on " .. sides[i] .. ", connecting...")
        rednet.open(sides[i])
        modemhere = true

    end

end

if not modemhere then error("No Modem found ! Please connect one !") end

ControlComp = rednet.lookup("ControlComp","ControlComp")

while ControlComp == nil do

    fails = fails+1
    print("Can't find Control Computer. Waiting ! ("..fails.." tries)")
    os.sleep(10)
    ControlComp = rednet.lookup("ControlComp","ControlComp")

end

print("Found Control Computer ! Running...")

while true do
    eventListener()
end