[JAVA3D] Multi User Server

[Sharon Lin]

Hello all.

I would like to know if you have any good tips to build a  Multi User server with good performance.

What kind of socket connection to use?( DatagramPackets).
What is the best way to spread users movements to other clients? Maybe sampling the position each constant time and send only the target position instead the all movements.
How to treat the packets each client / server receive ? (Using 2 threads one to input and one dispatcher and writer and synchronize them using queue) .

Thanks Sharon.