Can levels communicate with each other?
It is possible through the GameInstance class.
This class persists through levels.
I can not quite understand how to realize.Can you explain in detail?Thank you.
You can store your variables in a GameInstance blueprint and write to them from your other level blueprints or class blueprints within those levels. This way the information stored in those variables will not be changed when you load a new level. It will however reset once you start a new game so you can use savegame files to store it permanently if you need to.
Also if you just want to trigger an event on the other level you can try to use a Remote Event node.
> Can levels communicate with each other?
What is the use case? What are you trying to achieve?