Question to who know programing (position)

I asume SE have position update server side for a reason. I was wondering why!? Is there a securety issue or is it a more effective way to program it this way?

I dont have this issue, but i see some of the player base struggle, and i dont want to asume its all about skill, hardware or whatever.

I started using a VPN (not gonna advertise), and felt a good improvment. Now, if i fail, its all on me, if i make it, its all on me. This way encounters are an honest and rewardig experience.

So u tech guys ;) what is the reason for position check beeing serverside?
Anotherthing, would client make the position check take some stress from the servers?

If you bring position check client side you could seriously cheat.
The client would have to send to the server "all ok, he is safe" when you avoid an hit. You could seriously cheat forcing the client to send that message everytime, no matter where you are.

A previous bug kinda worked that way. You told the server what you wanted to sell and it did! Without even checking if you had that item.
FFXI manages stuff like this differently. The client tells the server which inventory slot you want to sell/equip, the server checks which item you have in that slot (so you don't send the item id from the client, but the position) and then it's sold/equipped.

In the end, you should avoid any cheatable check on the client side. Even the teleporting issue should have a server side check, as for example "if (point B - point A) > (allowed distance in timeframe) then banhammer!". Probably this would increase the server load because the info required to do this would double (old pos and new pos instead of just new pos) and there is math to do, but I think it would help with fighting cheaters.

why not just make AOE client side besides for pvp

that will solve half the issues there.

Making AOE client-side would allow the kind of cheating ZohnoReecho was talking about - meaning players could farm tombstone mats on easymode and sell them for huge for profits, etc. etc.

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