Create Radionautics is ment to be a mod where realistic radios can be used to comunicate between players and computers. Currently There is a brass radio link ment to add infinite range for redstone links (its encryption mode doesn't work yet). The anntennas for cc:tweaked are ment to replace modems adding a progrssion to how strong connections can be for computers currenlty only brass anntenna can connect sable entities to other sable entities or the normal world as they have infinite range.

The andesite anntenna has a range of 2000 blocks and the copper anntenna has a range of 500 blocks

A simple tutorial on how to use the anntenas for UDP or TCP transfers via anntenas

Create: Radionautics CC:Tweaked Guide

Create: Radionautics adds radio peripherals for CC:Tweaked computers. These radios let computers send messages over long distances using Create-themed antenna blocks.

Requirements

• Minecraft 1.21.1
• NeoForge
• Create
• Create Aeronautics
• CC:Tweaked
• Create: Radionautics

Radio Blocks

Radionautics adds three CC:Tweaked radio antenna peripherals:

Block	Range	Active bound frequencies
Andesite Radio Antenna	2000 blocks	1
Copper Radio Antenna	5000 blocks	2
Brass Radio Antenna	Infinite	5

Place a radio antenna directly next to a CC:Tweaked computer.

Getting The Peripheral

Use peripheral.find:

local radio = peripheral.find("radionautics_radio")

Or wrap a known side:

local radio = peripheral.wrap("left")

You can check the radio tier:

print(radio.tier())
print(radio.range())
print(radio.maxBinds())

Sending A Message

Sender:

local radio = peripheral.find("radionautics_radio")

radio.send("145.500", "chat:hello from base")

The first argument is the frequency. The second argument is the message.

Receiving Messages

Receiver:

local radio = peripheral.find("radionautics_radio")

radio.udpBind("145.500")

while true do
  local event, frequency, senderId, message = os.pullEvent("radio_message")
  print("Frequency: " .. frequency)
  print("Sender: " .. senderId)
  print("Message: " .. message)
end

The receiver must bind the frequency first:

radio.udpBind("145.500")

Incoming messages fire a radio_message event:

local event, frequency, senderId, message = os.pullEvent("radio_message")

Chat Example

Run this on the receiving computer:

local radio = peripheral.find("radionautics_radio")
radio.udpBind("145.500")

print("Listening on 145.500")

while true do
  local event, frequency, senderId, message = os.pullEvent("radio_message")
  print("[" .. frequency .. "] " .. senderId .. ": " .. message)
end

Run this on the sending computer:

local radio = peripheral.find("radionautics_radio")

while true do
  write("Message: ")
  local message = read()
  radio.send("145.500", "chat:" .. message)
end

Encryption Helpers

Radionautics includes helper methods for encoding/encryption.

Available crypto types:

• none
• xor
• aes
• base64

Encrypted sender:

local radio = peripheral.find("radionautics_radio")

local key = "secret-key"
local message = "chat:encrypted hello"
local encrypted = radio.cryptoEncrypt("aes", message, key)

radio.send("145.500", encrypted)

Encrypted receiver:

local radio = peripheral.find("radionautics_radio")

radio.udpBind("145.500")

local key = "secret-key"

while true do
  local event, frequency, senderId, encrypted = os.pullEvent("radio_message")
  local ok, message = pcall(function()
    return radio.cryptoDecrypt("aes", encrypted, key)
  end)

  if ok then
    print(message)
  end
end

If the wrong key is used, decrypting may fail. Use pcall if you want to ignore bad packets safely.

Frequencies

Frequencies are text. They can be numbers or names:

radio.udpBind("145.500")
radio.udpBind("AIRSHIP")
radio.udpBind("main_base")

The sender and receiver must use the same frequency.

Bind Limits

Each antenna tier has a maximum number of active bound frequencies.

radio.udpBind("145.500")
radio.udpBind("fleet")

If the antenna is out of bind slots, binding returns false.

Close a frequency when finished:

radio.close("145.500")

List active binds:

for _, frequency in ipairs(radio.boundFrequencies()) do
  print(frequency)
end

Queued Messages

You can poll messages manually:

local packet = { radio.receive() }

if packet[1] then
  local frequency = packet[1]
  local senderId = packet[2]
  local message = packet[3]
  print(message)
end

Usually, os.pullEvent("radio_message") is easier.

Check queued message count:

print(radio.queuedMessages())

Sable / Ship Helpers

Radionautics exposes early Sable/Create Aeronautics helper methods:

radio.sableContinousLoad(true)
radio.sableContinousLoad(false)

Check if continuous loading is enabled:

print(radio.sableIsContinousLoading())

Get the current ship center position:

local pos = radio.sableShipCenterPos()
print(pos.x, pos.y, pos.z)

Note: ship integration is still being developed. Current behavior may fall back to block position.

Optional Helper API

Radionautics also provides a helper API:

local radio = radionautics.find()
radio.udpBind("145.500")
radio.send("145.500", "chat:hello")

Crypto helper:

local encrypted = radionautics.crypto.encrypt("aes", "hello", "key")
local clear = radionautics.crypto.decrypt("aes", encrypted, "key")

Sable helper:

radionautics.sable.continousLoad(true)

Troubleshooting

No radionautics_radio peripheral attached

Make sure the antenna block is directly next to the computer.

No message received

Check:

• Receiver called radio.udpBind(frequency).
• Sender and receiver use the exact same frequency.
• The antennas are in the same dimension.
• The antennas are within range.
• The receiver program is still running.

Encrypted message fails

Check:

• Both computers use the same crypto type.
• Both computers use the same key.
• The receiver uses pcall if it wants to ignore bad packets.

Bind fails

The antenna may be out of active frequency slots.

Use:

print(radio.maxBinds())
print(radio.boundFrequencies())

Then close unused frequencies:

radio.close("old_frequency")