When should we use getHeight on server? waiting for your answer!

[bjutmark]

When should we use getHeight on server?

Now I know that the server loads heightmap and can calculate the height of any pair of x and y.

But I do not know when should I use the function of getHeight. You know that the position, include z, is sent to the server by the client, So I do not know What the function named GetHeight is for. Shall I check whether the z is correct sent by the client every few secends or millisecends?

Thank you!

[VladimirMangos]

Provide real place where you need seelct and this will point for discussion

generic talks useless except small note: client data must be always considered as cheating/corrupted

if you want normal working game server.