UE4 How to easily communicate between blueprints - Blueprint Interface Tutorial

A tutorial that takes you through creating a Blueprint Interface to more easily communicate between blueprints. I was really tired when I made this so it runs a bit longer than it should have.

[mx-gamesdev]

This was very usefull, The best explanation of BPI on youtube most people are copying and pasting tutorials with hideous music playing in the background and just using casting this is much cleaner, Thank You.

[jonsnow]

Despite you saying it was on-the-fly this is more succinct clear and to the point than 90% of tutorials out there, include Epic’s own.

[PerFeldvoss]

And there it is!! Hundreds of tutorials and then there is someone that mentions Append function... that is the "genius" of Object Oriented Programming, you know what you want, you know that it's there - you just don't know what it's called!

[hagan]

This tutorial video is the most useful video of the blueprint interface! Thank you very much!

[WoodysAR]

I watch this right before bed so my brain will incorpate it while I sleep. Thank you, Bru-plints Rule! (edit: I went to subscribe and already was!)

[CASIOF-W]

This tutorial is great. And you should feel great

[wink]

Thank you very much! This was helpful and clear. I can use the stuff.

[cloelh]

Why did you add a float in the BPI? You never referenced it. The information I'm looking for was specifically how to share info like transforms between BP, and it seems like you started to give us that but didn't. Good tut otherwise.

[ceceninmagaras]

Thank you bro, you are the best <3

[gwerneckpaiva]

I have a problem, my functions are not appearing in the character bp, neither the player stats or the event.

[veritablepixel]

What if you just need players and enemies to be able to reference whether it is night or day from your daynight cycle. Right now I have the enemies getting all actors of class BP_daynight and getting the time from it. 'Get all actors of class' isn't very optimized, especially when you have 50+ enemies on screen. I know there is an easier way to reference a boolean from my daynight cycle but idk how to use interfaces as a solution to this.

[KokahZ]

What was the point of creating a second function with an output ?

[Matthew.]

creating the PlayerStats in the Interface was not needed since its working normaly without

[__foo__]

cast fail always, cast works only with characters

[jefawksspaghettorium]

Thanks for the tutorial, but god damn so much mouse movement makes it really annoying to watch at times. You dont need to do 5 circles around 1 BP action while you're talking about it, you know?!