slaveSpawner

function drop()
    for x=1, 16 do
        if turtle.getItemCount(x) > 0 then
            turtle.select(x)
            turtle.drop()
        end
    end
    turtle.select(1)
end

drop()

chestSide = "left"
spawnerSide = "top"
modemSide = "right"
monitorID = 112

m = peripheral.wrap(modemSide)
rednet.open(modemSide)

tArgs = { ... }

if #tArgs == 1 then
    if tArgs[1] == "On" then
        rs.setOutput("top", true)
    elseif tArgs[1] == "Off" then
        rs.setOutput("top", false)
    end
end

function main()
    id, msg, distance = nil, nil, nil
    id, msg, distance = rednet.receive()
    if id == monitorID then
        if msg == "Empty" then
            turtle.suckUp()
            drop()
            rednet.send(monitorID, "Empty done")
        elseif msg == "Full" then
            turtle.suck()
            turtle.dropUp()
            rednet.send(monitorID, "Full done")
        elseif msg == "On" then
            rs.setOutput("top", false)
            redstone = "On"
            save()
            rednet.send(monitorID, "On done")
        elseif msg == "Off" then
            rs.setOutput("top", true)
            redstone = "Off"
            save()
            rednet.send(monitorID, "Off done")
        end
    end
end

function save()             --saving position
    file = fs.open("startup", "w")      --open startup in writemode
    file.write('shell.run("slave", \''..redstone..'\')')
    file.close()
end

while true do
    main()
    sleep(1)
end