Friday Night Funkin' - Psych Engine

Engine originally used on Mind Games Mod, intended to be a fix for the vanilla version's many issues while keeping the casual play aspect of it. Also aiming to be an easier alternative to newbie coders.

Installation:

You must have the most up-to-date version of Haxe, seriously, stop using 4.1.5, it misses some stuff.

open up a Command Prompt/PowerShell or Terminal, type haxelib install hmm

after it finishes, simply type haxelib run hmm install in order to install all the needed libraries for Psych Engine!

Customization:

if you wish to disable things like Lua Scripts or Video Cutscenes, you can read over to Project.xml

inside Project.xml, you will find several variables to customize Psych Engine to your liking

to start you off, disabling Videos should be simple, simply Delete the line "VIDEOS_ALLOWED" or comment it out by wrapping the line in XML-like comments, like this 

same goes for Lua Scripts, comment out or delete the line with LUA_ALLOWED, this and other customization options are all available within the Project.xml file

Credits:

Shadow Mario - Programmer
RiverOaken - Artist
Yoshubs - Assistant Programmer

Special Thanks

bbpanzu - Ex-Programmer
Yoshubs - New Input System
SqirraRNG - Crash Handler and Base code for Chart Editor's Waveform
KadeDev - Fixed some cool stuff on Chart Editor and other PRs
iFlicky - Composer of Psync and Tea Time, also made the Dialogue Sounds
PolybiusProxy - .MP4 Video Loader Library (hxCodec)
Keoiki - Note Splash Animations
Smokey - Sprite Atlas Support
Nebula the Zorua - LUA JIT Fork and some Lua reworks

Features

Attractive animated dialogue boxes:

Mod Support

Probably one of the main points of this engine, you can code in .lua files outside of the source code, making your own weeks without even messing with the source!
Comes with a Mod Organizing/Disabling Menu.

Atleast one change to every week:

Week 1:

New Dad Left sing sprite
Unused stage lights are now used

Week 2:

Both BF and Skid & Pump does "Hey!" animations
Thunders does a quick light flash and zooms the camera in slightly
Added a quick transition/cutscene to Monster

Week 3:

BF does "Hey!" during Philly Nice
Blammed has a cool new colors flash during that sick part of the song

Week 4:

Better hair physics for Mom/Boyfriend (Maybe even slightly better than Week 7's 👀)
Henchmen die during all songs. Yeah :(

Week 5:

Bottom Boppers and GF does "Hey!" animations during Cocoa and Eggnog
On Winter Horrorland, GF bops her head slower in some parts of the song.

Week 6:

On Thorns, the HUD is hidden during the cutscene
Also there's the Background girls being spooky during the "Hey!" parts of the Instrumental

Cool new Chart Editor changes and countless bug fixes

You can now chart "Event" notes, which are bookmarks that trigger specific actions that usually were hardcoded on the vanilla version of the game.
Your song's BPM can now have decimal values
You can manually adjust a Note's strum time if you're really going for milisecond precision
You can change a note's type on the Editor, it comes with two example types:
- Alt Animation: Forces an alt animation to play, useful for songs like Ugh/Stress
- Hey: Forces a "Hey" animation instead of the base Sing animation, if Boyfriend hits this note, Girlfriend will do a "Hey!" too.

Multiple editors to assist you in making your own Mod

Working both for Source code modding and Downloaded builds!

Story mode menu rework:

Added a different BG to every song (less Tutorial)
All menu characters are now in individual spritesheets, makes modding it easier.

Credits menu

You can add a head icon, name, description and a Redirect link for when the player presses Enter while the item is currently selected.

Awards/Achievements

The engine comes with 16 example achievements that you can mess with and learn how it works (Check Achievements.hx and search for "checkForAchievement" on PlayState.hx)

Options menu:

You can change Note colors, Delay and Combo Offset, Controls and Preferences there.
On Preferences you can toggle Downscroll, Middlescroll, Anti-Aliasing, Framerate, Low Quality, Note Splashes, Flashing Lights, etc.

Other gameplay features:

When the enemy hits a note, their strum note also glows.
Lag doesn't impact the camera movement and player icon scaling anymore.
Some stuff based on Week 7's changes has been put in (Background colors on Freeplay, Note splashes)
You can reset your Score on Freeplay/Story Mode by pressing Reset button.
You can listen to a song or adjust Scroll Speed/Damage taken/etc. on Freeplay by pressing Space.

ZolarZ/FNF-PsychEngine