mineserver

function prepare()
    print("How many turtles should connect?")

    local expectedTurtlesStr = read()
    local currentTurtles = 0

    if type(expectedTurtlesStr) == "number" then
        local expectedTurtles = tonumber(expectedTurtlesStr)

        while currentTurtles < expectedTurtles do
            local id, message = rednet.receive("minenettoserver")
            rednet.send(id, "Welcome!", "minenettoclient")

            print("Turtle #" .. id .. " connected")
            currentTurtles = currentTurtles + 1
        end

        return true
    else
        print("Please enter a valid number")
        return false
    end
end

function main()
    rednet.open("right")
    if rednet.isOpen("right") ~= true then
        print("Failed to start modem!")
        return
    end

    if prepare() == true then

    end

    rednet.close("right")
end

main()