How to make a database of items to use with the same level blueprint script?

Development Programming & Scripting Blueprint
1

I am used to writing out my scripts. It’s the first time I am using kismet/blueprints, and it goes well, but there are still some holes. Most of the time I know what I want to do, but I just don’t know how to do it in visual scripting.

To give an example of my problem, I’ll write it out in code:



Init:

db_ButtonLights(Lightswitch01, Light01, Light02);
db_ButtonLights(Lightswitch02, Light03,_);

kb:

IF
CharacterUsedItem(_Character,_Switch)
and
db_ButtonLights(_Switch,_LightX,_LightY)
THEN
Activate(_LightX);
Activate(_LightY);

(Code is just written out quick, it’s not 100% correct, but it gives the idea)

In this instance the script recognizes which button is being pressed, and automatically checks which lights correspond with that button. I can add as many buttons and lights to the database as I want, the script will always be the same.
Right now I know how to use a button to activate a light. That is not the problem. The problem is that I am copy/pasting nodes in the level blueprint and adding the different lights to different buttons. So I have the same script repeated all over the place. I just know this can’t be the way it should be done, but I don’t know how to make that database kind of thing in blueprint.

Important to know is that the number of lights may vary, so making a class blueprint of one or more lights linked to a button doesn’t work, since the amount of lights won’t always be the same. Or can I make a class blueprint with, let’s say, 5 lights, and just delete some of the lights in the level when I don’t need all five? Would still feel like hacking the system, I guess…

Thanks in advance. If the question has already been posted, I am sorry. I did a search on the forum, on the wiki and on google, and it didn’t return anything. Maybe I’m using the wrong keywords, I don’t know.

Mod:

This is what I got right now … as you can see it’s basicly twice the same script, just with different variables. How can I combine them into one script, while still being flexible, keeping in mind the number of lights a switch toggles, may vary.

2

Hi, Image as attachments!!!

We are talking about simple point lights for now, ok?
You can place them all around your House, in different areas.
You place some Actors, Switch , in some room .

you can build a pretty complex blueprint to. identify wich switch you are closer , identify the room that switch is in , get all the lights in the room , set them all on , and off.
Know that you can do it , ok ? using the Get All actor of class, and placing some boxes and trigger to overlap them and find them by these boxes,
or use the distance to search them , or other milion of things.

BUT !!!
lets do it using some stored variables to make a “database”

Get your levvelblueprint and add a new variable, call her “Kitchen-Lights”, the type is pointlight / actor reference. and be carefull to make it an Array. , Now compile and save.
Now you can Edit this variable , Just click on the default_value and unreal will find the Pointlights in your level. set as many room you want with different lights.

In the image i set up a new Array , and make it empty,
I can call the EVENT with number 1, or 2, and it will set my room variable , to a specific combination of lights,
then i will call for every light in that combination and call a toggle light.
i hope is clear enough.

This is how use Arrays to list some kind of thing , and then , depending of your seelection , clone one off this array in a Operative array.
to make only 1 blueprint of instruction.