andrew fe620020be Add PrismaUI HTML server browser & integration
Integrate a PrismaUI_F4-based HTML server browser and related tooling. Adds a ThirdParty submodule (framework-F4-Conversion), UI views (CommonwealthOnline browser HTML/JS/CSS), and multiple plugin headers/sources to bridge PrismaUI/Scaleform, handle menu input, and manage server browser data and actions (mock server list, join/connect flow).

Key changes:
- New build/deploy scripts: build-prismaui.bat, build-all.bat, deploy-all.bat, deploy-ui.bat and a PowerShell helper for linking the Ultralight SDK (ULTRALIGHT_SDK_PATH, default F:\\UltralightSDK).
- Plugin additions: F4TPrismaUI, F4TScaleformUI, F4TServerBrowserBridge, F4TServerBrowserData, F4TMenuInput, F4TDebugOverlay and implementations to create/show/hide the HTML view, forward controller input, register Scaleform functions (openManager/closeManager), and push UI events.
- Networking: add ConnectToServer(host,port) and keep ConnectToLocalServer() as wrapper; update connection logs and error handling.
- Main menu SWF/AS updates: updated MainMenu.swf and MainMenu.as to call closeManager() when leaving multiplayer and to integrate open/close hooks.
- Documentation: plugin/setup.md updated with PrismaUI build/deploy instructions.
- Removed Main_ModManager.swf (deleted).

Primary intent: provide an in-game HTML server browser (toggleable with F9 or Scaleform calls), wire up controller input, and add build/deploy workflow for PrismaUI/Ultralight so developers can build and deploy the UI and plugin together. Mock server data is used for now; network join/connect plumbing is provided for local/dev servers.
2026-06-08 14:02:49 +12:00
2026-05-30 18:13:54 +12:00
2026-05-30 18:13:54 +12:00
TP
2026-06-07 15:50:12 +12:00
2026-05-30 18:13:54 +12:00
2026-05-30 18:13:54 +12:00

Commonwealth Online

Commonwealth Online is an experimental research project exploring the possibility of adding basic multiplayer-style networking to Fallout 4.

The goal is not to create a full co-op campaign mod immediately. The first goal is much smaller:

Two Fallout 4 clients in a controlled test environment, with each player visible as a synced remote actor.

This project is currently in the research and prototype stage.

Project Goals

First Prototype

  • Load a native Fallout 4 plugin through F4SE
  • Connect to a local test server
  • Send local player position data
  • Receive remote player transform data
  • Represent another connected player using a placeholder actor
  • Restrict all testing to a custom test cell

Long-Term Ideas

  • Basic LAN multiplayer test mode
  • Remote player movement sync
  • Basic animation state sync
  • Basic chat or debug messages
  • Host-controlled test cell
  • Simple co-op combat arena

Non-Goals

This project is not currently trying to support:

  • Full Fallout 4 campaign co-op
  • Quest synchronization
  • Settlement synchronization
  • Full NPC/world state synchronization
  • VATS synchronization
  • Public server/MMO gameplay
  • Compatibility with large modlists

Those systems are extremely complex and are outside the scope of the first prototype.

Repository Layout

docs/             Project documentation and research notes
plugin/           Native F4SE/CommonLibF4 plugin work
creation-kit/     Creation Kit plugin files, Papyrus scripts, and test cell notes
server/           External multiplayer test server
protocol/         Network packet design and sync documentation
tools/            Helper scripts and utilities
test-data/        Example packets and test data
screenshots/      Development screenshots

Requirements

This project is expected to require:

  • Fallout 4 on PC
  • Fallout 4 Script Extender, F4SE
  • Fallout 4 Creation Kit
  • Visual Studio 2022 or newer
  • CMake or another supported C++ build system
  • A CommonLibF4-based plugin template
  • Git
  • A clean Fallout 4 test profile

Use a separate Fallout 4 installation or a dedicated modding profile for testing.

Recommended setup:

Fallout 4
F4SE
Creation Kit
Mod Organizer 2 or Vortex
Visual Studio
Git

Use a clean test save and avoid testing with a full personal modlist.

This repository does not include Fallout 4 game files, Bethesda assets, F4SE binaries, or any proprietary game code.

Users are responsible for owning Fallout 4 and installing required external tools themselves.

Status

Current status:

Research phase
Repository structure setup
Protocol planning
No playable multiplayer build yet

License

To be decided.

S
Description
No description provided
Readme
1.2 GiB
Languages
C++ 94.8%
ActionScript 1.6%
Python 1.4%
JavaScript 0.8%
Papyrus 0.6%
Other 0.8%