> I suspect the answer to cheating will ultimately be big brother and hiding information from the client.

The speed of light makes this _marginally_ problematic to do. It is possible that a unit might move out of the fog of war, or out of cover, during the latency to the client (or between server ticks). You'd effectively have pop-in during some scenarios - but it would be minor and the net benefit would probably make it worth it.

I recall one of the MOBAs adding this during its lifecycle, HoN I think?

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ThatPlayer 4 days ago | parent [-]

Riot has a pretty good article about why it is hard: https://technology.riotgames.com/news/demolishing-wallhacks-... . Anything more than simple geometry makes server side calculations costly, especially when you're targeting 128 tick/s.

Their settled solution is still not perfect, hence still the need for client-side anti-cheat. The final video clip is definitely done to look effective than it actually is. Those positions are transmitted based on space, not time, and in a real game you'd be moving slower.

Mobas generally have a lower tickrate and simpler vision setups

	▲	coppsilgold 3 days ago \| parent [-]
		Looks like they put in some effort. You will get better results by having this type of anticheat baked into the engine from the very beginning and requiring a GPU on the server. What I had in mind is having a primitive physics simulation with point clouds (+ velocity smearing) for entities and geometries for surfaces. You will be able to to do many more checks this way.