(4-27) Light switch widget

Skilja · February 16, 2022, 4:25pm

I’m trying to make a simple light switch (button) with existing UI on the scene. I’ve already created the button and I need help with how to connect it to all the lights so I can change their intensity, and keep them on even if directional light is high in the sky.

Everynone · February 16, 2022, 4:37pm

Reference the light in the Level Blueprint and hook it up to a dispatcher:

S-Dot · February 18, 2022, 7:50am

Toggle visibility is for objects to be visible or not. Find the right parameter like light intensity. Not sure what exactly it is. Drag it off the light component and it will show in the list.

Skilja · February 23, 2022, 3:15pm

Still having issues with the lights, again the button is working:

Problem comes in this part, I made selection for all the lights and made a BP, but cant control their brightness:

Help much needed, and appreciated.

Everynone · February 23, 2022, 3:38pm

The widget is sending a message to an actor:

How is this reference Set? Assuming this is it:

Can you describe how you think it works? Maybe I’m missing something. There’s something dodgy here, if you have the correct type, there’s no need to cast (the blue note).

Also, why get Component by Class if you can just wire in a desired component instead?

Any reason why what I posted originally does not work for you?

Skilja · February 23, 2022, 4:10pm

Primarily the issue is that I am a total noob at this, so starting from -0. I rally have a superficial understanding of everything.
So what I’m trying to do is change light brightness through a on screen widget, but I can’t figure out how to call all the lights I have for that building. I made a Blueprint for them, but when I click on the button nothing changes.

Everynone · February 23, 2022, 4:13pm

is there more than 1 building?
how are the lights made to be a part of the building, are they attached somehow, assigned?
if there’s more than 1 building, how do we select buildings?

Skilja · February 23, 2022, 4:29pm

There are 2 buildings, I’m scavenging parts from one to the other.
Lights are just simple point lights and a lot of them(200+).
Sacrificial building will be removed after everything is collected

Everynone · February 23, 2022, 4:44pm

There are too many unknowns to suggest a good solution, I’d need to understand how your game is supposed to work. For example, from what you said above, I still don’t know if we’re interacting with all lights at once or with one light at a time.

Assuming it’s all lights at once; for something generic / agnostic (and pretty crude), you could try this:

search for and select all point lights you want to interact with
give them all an actor tag

in the widget:

Skilja · February 24, 2022, 1:08pm

Thanks, a lot, that really was what I needed. Finally working.