Great tutorial but few important things are missing

[meiry]

Hello
this is realy great tutorial and example , but there are few things missing from your example
the most important one is making the server Authoritative server model and Client side prediction .
sending each move from the client is very much not efficient .
please take a look at my tutorial on the subject .
http://www.gamedevcraft.com/2016/08/part-1-multiplayer-websocket-game.html

[Niall7459]

Agree that it will fix the jumpy gameplay.