OpenPAC ComputerCraft United (OPCCU)

Overview

OpenPAC ComputerCraft United (OPCCU) is a server-side NeoForge mod for Minecraft 1.21.1 that expands Open Parties and Claims (OpenPAC) with better automation support, improved claim management, and survival-friendly tools.

The primary goal is to eliminate compatibility issues between CC:Tweaked and OpenPAC, while providing players with an easier and more flexible claiming experience.

Target Platform

• Minecraft 1.21.1

• NeoForge

• Java 21

• Open Parties and Claims (OpenPAC) 0.27.5+

• CC:Tweaked 1.21.1+

Server-side only whenever possible.

Main Objectives

🤖 CC:Tweaked Compatibility

Fix compatibility issues between OpenPAC and CC:Tweaked by:

• Allowing turtles to interact across OpenPAC claims (configurable).

• Allowing computers to function correctly when OpenPAC would otherwise block them.

• Supporting CC:Tweaked fake players without granting actual Minecraft OP permissions.

• Resolving OpenPAC-related networking/HTTP restrictions that interfere with CC:Tweaked functionality.

• Preserving OpenPAC's protection system for everything outside the configured compatibility behavior.

🪄 Claim Wand

A craftable survival item available to every player.

Features:

• Claim individual blocks.

• Shift-click to claim rectangular areas.

• Live preview before claiming.

• Auto-connect nearby claims.

• Smart expansion and merging.

• Visual outline effects.

• Survival-friendly crafting recipe.

No OP permission required.

🪄 Unclaim Wand

A craftable survival item available to every player.

Features:

• Remove individual claimed blocks.

• Area unclaim mode.

• Live preview.

• Smart boundary updates.

• Safe unclaim logic to reduce accidental claim damage.

🔍 Claim Scanner

Craftable utility item.

Displays:

• Claim owner

• Party

• Claim size

• Trusted players

• Automation status

• CC:Tweaked compatibility status

• Coordinates

👥 Claim Management

Easy-to-use tools for players.

Features include:

• Merge claims

• Split claims

• Transfer ownership

• Rename claims

• View permissions

• View automation settings

⚡ Performance

Designed for multiplayer servers.

• Cached claim lookups

• Efficient permission checks

• Low TPS impact

• Large-server friendly

Configuration

Example:

bypassClaims = true

claimWandEnabled = true

unclaimWandEnabled = true

wandRequiresOp = false

allowAreaSelection = true

claimPreview = true

particles = true

debugLogging = false

Commands

• /opccu help

• /opccu status

• /opccu reload

• /opccu version

• /opccu debug

Design Philosophy

OpenPAC ComputerCraft United is not intended to replace OpenPAC.

Instead, it acts as an extension that improves compatibility with CC:Tweaked and adds quality-of-life features for claim management while remaining lightweight, configurable, and focused on enhancing the existing OpenPAC experience.