CC: Redstone Link Bridge

CC Redstone Link Bridge

NeoForge mod for Minecraft 1.21.1.

Note: This description always refers to the latest version of the mod only. Older versions may have fewer functions or behave differently.

This mod connects Create Redstone Link networks with CC:Tweaked computers. It adds a single block, the CC Redstone Link Bridge, which can be placed in the world and then used as a ComputerCraft peripheral.

This mod requires both Create and CC:Tweaked.

What the Mod Does

The bridge acts as a small adapter between two systems:

• Create provides the Redstone Link network.
• CC:Tweaked provides Lua control from computers.

With the bridge block in the world, a connected computer can:

• read the current signal strength of any Redstone Link frequency pair
• send a signal strength to any Redstone Link frequency pair
• list all frequency pairs the bridge is currently sending on
• stop all signals sent by the bridge at once

How It Works

The block itself is a Create-compatible linkable block entity. It stores one or more target frequency pairs as item IDs and can interact with the Create Redstone Link network.

When the peripheral is used from Lua:

• getLinkSignal(freq1, freq2) looks up the current strength for that frequency pair.
• sendLinkSignal(freq1, freq2, strength) registers or updates that frequency pair on the bridge block and transmits the chosen strength.
• getActive() returns every frequency pair the bridge is currently transmitting on (strength greater than 0).
• clearAll() removes all frequency pairs from the bridge, so it stops transmitting completely.

Calling sendLinkSignal with different frequency pairs lets one bridge block keep multiple outputs active at the same time.

The frequency values are item IDs written as strings. For example, minecraft:iron_ingot and minecraft:oak_sapling form one valid pair.

Requirements

• Minecraft 1.21.1
• NeoForge 21.1.226 or newer
• Create 6.0.10 or compatible for 1.21.1
• CC:Tweaked 1.117.1 or compatible
• Java 21

Crafting Recipe

The recipe is a 3x3 shaped craft with Redstone Links in all four corners, a Wireless Modem in the center, and Cobblestone in the bottom-middle slot. The three remaining middle-edge slots (top-middle, middle-left, and middle-right) are filled with Create transmitters.

Lua API

Peripheral type:

• redstone_link_bridge

Methods:

Frequency Values

freq1 and freq2 must be item IDs as strings.

Examples:

• "minecraft:iron_ingot"
• "minecraft:oak_sapling"
• "minecraft:redstone"

Use an empty string ("") for an empty frequency slot. This matches Create Redstone Links whose frequency slot has no item in it. It works for both getLinkSignal and sendLinkSignal, and it is kept when the world is saved and loaded again. For example, bridge.sendLinkSignal("", "", 15) powers fresh Redstone Links that have no frequency items set.

An item ID that does not exist (for example a typo like "minecraft:diamnod") raises a Lua error. It is not treated as an empty frequency.

Example

local bridge = peripheral.find("redstone_link_bridge")
assert(bridge, "No redstone_link_bridge found")

-- Read an existing frequency pair
local current = bridge.getLinkSignal("minecraft:diamond", "minecraft:redstone")
print("Current signal:", current)

-- Register or update one or more output channels on the same bridge block
bridge.sendLinkSignal("minecraft:diamond", "minecraft:redstone", 7)
bridge.sendLinkSignal("minecraft:iron_ingot", "minecraft:oak_sapling", 12)
bridge.sendLinkSignal("", "", 15) -- empty frequency slots

-- List everything the bridge is currently transmitting
for _, channel in ipairs(bridge.getActive()) do
    print(channel.freq1, channel.freq2, channel.strength)
end

-- Stop all signals from this bridge
bridge.clearAll()