UFO-MultiMadnessMod

This is a mod to enable 4 players for various games in the game UFO50.

Currently the following games are supported:

• Velgress (2/3/4P Co-op & VS)
• Onion Delivery (2/3/4P Splitscreen Co-op)
• Waldorf's Journey (2/3/4P Free For All)
• Bushido Ball (4P VS)
• Hot Foot (4P VS)
• Mooncat (3/4P Co-op)
• Paint Chase (4P Team VS)
• Attactics (4P Team VS)
• The Big Bell Race (up to 6 Players)
• Party House (3/4P VS)
• Ninpek (3/4P Co-op)
• Mortol (2/3/4P Co-op)

This also incorporates p-sam's rich presence for Discord mod.

This mod is provided as a combination of code diffs and additional assets and is heavily inspired from p-sam's UFO50 mods repo.

All original rights belong to Mossmouth (and am happy to take down this repo at their request).

• Data from the original game has been minimised by providing the smallest diff context needed (1 line)
• Some of the "new" sprites are palette swaps of existing sprites

How to use this repo

Instructions for Non-Developers

UFO 50 mods commonly use an xdelta file to patch the main gamefile (data.win) directly. Please use a delta from the Releases page.

A quick and easy way to apply a delta file is to use a site like https://kotcrab.github.io/xdelta-wasm/ or download a standalone tool such as https://github.com/marco-calautti/DeltaPatcher.

• You can find more details at https://ufo50.miraheze.org/wiki/Guide_to_Modding_UFO_50

Instructions for Developers

This repo is designed to run standalone as a Dev Container in VSCode.

The dev container will setup dotnet & dotnet script.

Once the dev container is loaded you must place your copy of UFO50's data.win file in the input folder.

Next you need to run the following command to download the UndertaleModTool CLI and set it up for use:

bash import/setup_lib.sh

From here you want to run the following scripts in order:

1. extract_scripts_from_original.csx
   • This extracts the relevant original source *.gml files from data.win and puts them in the ufo50_original_scripts folder
2. diff_applyer.csx
   • This generates the modded versions of the source files (you can view the modded files in the ufo50_modded_scripts folder)
3. patch_for_local.csx
   • This copies data.win into the output folder and imports the modded code and textures/sprites

After completing these steps the files in the output folder can be copied back into your original UFO50 game folder to apply the mod.

The .csx scripts can be run using the VSCode launch configuration provided (first you must select the script you want to run in the "Explorer" menu before running it from the "Run and Debug" menu).

Credits

Thank you to the incredible Underminers team for providing such a useful and versatile modding library for Game Maker Studio.

Credit also goes to this UFO50 Wiki for documenting where to begin with modding UFO50.

Kudos to Terrance for putting in the legwork for making Bushido Ball 4 player.

Next up a big thanks to p-sam for providing such a good modding framework (this is a pale imitation of what you've already done).

Lastly a massive thanks to Mossmouth for making such a rich collection of games!