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https://pastebin.com/raw/Te359WA2
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--Version 1.0.3
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--This program will act as a repeater between a turtle and a receiver computer
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--important options are doAcceptPing and arbitraryNumber
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--expected message format: {message, id, distance, fingerprint}
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--added modifications similar to receiver program
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--Config
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local doDebug = false --...
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local arbitraryNumber = 100 --How many messages to keep between deletions
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local saveFile = "QuarryRepeaterSave"
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local expectedFingerprints = {quarry = true, quarryReceiver = true}
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local acceptLegacy = true --This will auto-format old messages that come along
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local doAcceptPing = true --Accept pings. Can be turned off for tight quarters
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local pingFingerprint = "ping"
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local pingSide = "top"
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--Init
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local sentMessages = {} --Table of received message ids
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local counter = 0
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local tempCounter = 0 --How many messages since last delete
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local recentID = 1 --Most recent message ID received, used for restore in delete
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local channels = {} --List of channels to open listen on
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local modem --The wireless modem
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local modemSide --Will not necessarily be set
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--Function Declarations--
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local function debug(...) if doDebug then return print(...) end end --Debug print
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local function newID()
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return math.random(1,2000000000) --1 through 2 billion; close enough
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end
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local function save()
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debug("Saving File")
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local file = fs.open(saveFile, "w")
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file.writeLine(textutils.serialize(channels):gsub("[\n\r]","")) --All the channels
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file.writeLine(counter) --Total number of messages received
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file.writeLine(modemSide) --The side the modem is on, helps for old MC
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return file.close()
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end
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local function addID(id)
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sentMessages[id] = true
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tempCounter = tempCounter + 1
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counter = counter + 1
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recentID = id
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save()
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end
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local function openChannels()
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for a,b in pairs(channels) do
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debug("Checking channel ",b)
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if not modem.isOpen(b) then
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debug("Opening channel ",b)
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modem.open(b)
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end
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end
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end
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local function testPeripheral(periph, periphFunc)
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if type(periph) ~= "table" then return false end
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if type(periph[periphFunc]) ~= "function" then return false end
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if periph[periphFunc]() == nil then --Expects string because the function could access nil
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return false
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end
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return true
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end
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local function initModem() --Sets up modem, returns true if modem exists
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if not testPeripheral(modem, "isWireless") then
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if peripheral.getType(modemSide or "") == "modem" then
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modem = peripheral.wrap(modemSide)
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if not modem.isWireless() then --Apparently this is a thing
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modem = nil
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return false
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end
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return true
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end
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if peripheral.find then
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modem = peripheral.find("modem", function(side, obj) return obj.isWireless() end)
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end
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return modem and true or false
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end
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return true
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end
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local function addChannel(num, doPrint) --Tries to add channel number. Checks if channel not already added. Speaks if doPrint set to true.
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num = tonumber(num)
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for a, b in pairs(channels) do
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if b == num then
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if doPrint then
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print("Channel "..num.." already added.")
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end
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return false
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end
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end
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if num >= 1 and num <= 65535 then
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table.insert(channels, num)
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if doPrint then
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print("Channel "..num.." added.")
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end
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end
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end
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--Actual Program Part Starts Here--
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if fs.exists(saveFile) then
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local file = fs.open(saveFile,"r")
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channels = textutils.unserialize(file.readLine()) or (print("Channels could not be read") and {})
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counter = tonumber(file.readLine()) or (print("Counter could not be read") and 0)
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modemSide = file.readLine() or (print("Modem Side not read") and "")
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print("Done reading save file")
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file.close()
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end
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while not initModem() do
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print("No modem is connected, please attach one")
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if not peripheral.find then
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print("What side was that on?")
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modemSide = read()
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else
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os.pullEvent("peripheral")
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end
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end
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openChannels()
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sleep(2) --Give users a second to read this stuff.
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local continue = true
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while continue do
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print("\nHit 'q' to quit, 'r' to remove channels, 'p' to ping or any other key to add channels")
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local event, key, receivedFreq, replyFreq, received, dist = os.pullEvent()
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term.clear()
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term.setCursorPos(1,1)
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if event == "modem_message" then
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print("Modem Message Received")
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debug("Received on channel "..receivedFreq.."\nReply channel is "..replyFreq.."\nDistance is "..dist)
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if acceptLegacy and type(received) ~= "table" then
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debug("Unformatted message, formatting for quarry")
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received = { message = received, id = newID(), distance = 0, fingerprint = "quarry"}
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end
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debug("Message Properties")
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for a, b in pairs(received) do
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debug(a," ",b)
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end
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if expectedFingerprints[received.fingerprint] and not sentMessages[received.id] then --A regular expected message
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if received.distance then
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received.distance = received.distance + dist --Add on to repeater how far message had to go
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else
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received.distance = dist
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end
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debug("Adding return channel "..replyFreq.." to channels")
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addChannel(replyFreq,false)
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debug("Sending Return Message")
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modem.transmit(receivedFreq, replyFreq, received) --Send back exactly what we got
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addID(received.id)
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elseif doAcceptPing and received.fingerprint == pingFingerprint then --We got a ping!
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debug("We got a ping!")
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redstone.setOutput(pingSide, true) --Just a toggle should be fine
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sleep(1)
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redstone.setOutput(pingSide, false)
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end
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if tempCounter > arbitraryNumber then --Purge messages to save memory
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debug("Purging messages")
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sleep(0.05) --Wait a tick for no good reason
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sentMessages = {} --Completely reset table
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sentMessages[recentID] = true --Reset last message (not sure if really needed. Oh well.)
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tempCounter = 0
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end
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print("Messages Received: "..counter)
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elseif event == "char" then
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if key == "q" then --Quitting
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print("Quitting")
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continue = false
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elseif key == "p" then --Ping other channels
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for a,b in pairs(channels) do --Ping all open channels
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debug("Pinging channel ",b)
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modem.transmit(b,b,{message = "I am ping! Wrar!", fingerprint = "ping"})
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sleep(1)
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end
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elseif key == "r" then --Removing Channels
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print("Enter a comma separated list of channels to remove")
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local str = "" --Concatenate all the channels into one, maybe restructure this for sorting?
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for i=1,#channels do
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str = str..tostring(channels[i])..", "
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end
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print("Channels: ",str:sub(1,-2)) --Sub for removing comma and space
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local input = io.read()
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local toRemove = {} --We have to use this table because user list will not be in reverse numerical order. Because modifying while iterating is bad...
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for num in input:gmatch("%d+") do
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for a, b in pairs(channels) do
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if b == tonumber(num) then
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debug("Removing ",b)
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table.insert(toRemove, a, 1) --This way it will remove indexes from the back of the table
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modem.close(b)
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break --No use checking the rest of the table for this number
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end
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end
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end
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for i=1, #toRemove do
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table.remove(channels, toRemove[i])
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end
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else --Adding Channels
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print("What channels would you like to open. Enter a comma-separated list.\nAdd only sending channels. Receiving ones will be added automatically.\n")
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local input = io.read()
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for num in input:gmatch("%d+") do
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addChannel(num,true)
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end
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sleep(2)
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end
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save()
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openChannels() --This will only open channels if they aren't open
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end
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end
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for i=1, #channels do
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modem.close(channels[i])
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end
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