Finally, it's open source.

Friday Night Funkin' FPS Plus

Friday Night Funkin' FPS Plus is an engine mod of Friday Night Funkin' that aims to improve gameplay and add quality of life features.

You can find the original game here: Newgrounds - itch.io - GitHub

FPS Plus was designed to increase the framerate of Friday Night Funkin' and is still currently (as far as I know) the only engine that allows for an unlocked framerate. It also features a plethora of enhancements and quality of life features. A bunch of systems are also changed as well that alter the workflow of coding stuff into the engine.

Building

To download and install all libraries required compiling, you must install Haxe's Module Manager (hmm).

To install and set up hmm, run the following commands:

    haxelib --global install hmm
    haxelib --global run hmm setup

After hmm's install is complete, run hmm install in the root directory to install all haxelibs.
After installing all libraries, run haxelib run lime setup to set up lime.

To set up build tools, refer to part 5 of this document.

Run lime test PLATFORM or lime build PLATFORM to compile the game.

If you are getting an error that says that a bunch of Flixel classes are missing fields, you need to reinstall Haxe. I don't know what causes this I just know that reinstalling Haxe should fix it.

Credits