Currently, the server simulates at 20 ticks a second. The inputs received from the client is buffered and only processed during one of these ticks. However, if a client sends input at a faster rate, say 60 times a second, that client will move about 3x faster than regular clients.
A solution to this would be to have the server combine/unify the inputs in the buffer and process this input once, instead of processing the buffered inputs individually.
Now, given the latter solution, a client with a send rate of 20 could be subject to network jitter, which could cause the server to receive 2 or more inputs at the same time. This would cause the server to combine/unify the inputs, when they should actually be processed individually.
So my question is, how should the server handle inputs to prevent more inputs from being processed than necessary, while not skipping inputs that arrive at the same time?
I hope I make sense, if not just tell me to elaborate :)