HIVE

Imagine opening the resource from no knowledge. He should understand why and when to use it, without having to follow internal code logics. At the moment I honestly just read out that to use it as TRVE, but without a real "real" type. So, why actually do I or someone else need it? Like, from that side, I meant.

Ah, thanks for the clarification. Yes, it's based on the TRVE, but with the added capability of unregistering to the Event Instance. To fire an Event instance, one can just do this:

set <whichEvent>.fire = <real>

It also has the benefit of being able to fire the event when calling it twice so you no longer have to do this:

set <realVar> = <real>
set <realVar> = <someReal>
set <realVar> = <real>

Instead, you can do it twice.

set <whichEvent>.fire = <real>
set <whichEvent>.fire = <real>

On another note, you can think of it as a vJass version of TRVE.

You should explain in thread, too, I guess.

Then why based on TRVE, but now simply on add conditon to trigger.

Look how few lines I needed here for such a feature: https://www.hiveworkshop.com/threads/herorevivecancelevent-v1-1.293491/

You should convince why one should use that big system instead such things.