startup

sides = {"right", "left", "bottom", "top", "front", "back"}

function start()
    for k, side in pairs(sides) do
        if peripheral.isPresent(side) then
            if peripheral.getType(side) == "modem" then
                rednet.open(side)
            end
        end
    end

    local x, y, z = commands.getBlockPosition()

    local command = string.format("gps host %d %d %d", x, y, z)
    shell.run(command)

end

start()