How to have a function that the host triggers lock the client out from calling it too

I'm making a competitive 1v1 game where two players are essentially fighting to get to a star. It is common for both players to be right at the star when it is acquired, so I keep having the issue that one of them will get it first, but before it updates for the other, they also get it and then the game awards both of them the point. I'm not sure if it would be as simple as a boolean to lock the other out of it, since it gets confusing with serverRPC's and such, so I was wondering what to do.

Thanks!

 

The best practice solution for competitive games is to let the server decide. In a 1v1 where one plays as the host, that player will always have a significant advantage in online play since that player will not experience any round-trip lag at all.

If you do it client authoritative you'd still have to inform the server who picked it up at what tick and even then they may both pick it up in the same tick.

 

How do I check what tick they pick it up at? I plan to let the server decide but I'm just not totally sure how to logically figure out who got it first