ZNet Framework

ZNet Framework (1) Target Network Framework for MMOSG - be flexible on latency - for fair decision Features - Support TCP and UDP - Support a script language - 32 players - Over 100 spectators Basic Logical Model ZNet Initiator Interrupter Receiver

ZNet Framework (2) ,[object Object],[object Object],[object Object],Synchronization of MMOSG There are always some payload by network latency under online circumstance. What is most importance in MMOSG is a fair decision. And a network latency have an effect on it and a game play. We have a technical knowledge and many experiences to solve the latency issues. We can the techniques into two parts. One is a technique to process network latency. Another is a technique of visualization to reparation of the latency.

ZNet Framework (3) ,[object Object],First Latency A first detector of an action is always the actor. Then a receiver cannot help detecting the action after some latency. It’s a first latency. And it’s identical with network transfer time between initiator and receiver. First Latency = Network Transfer Time Action Second Latency If there are one more receivers, the transfer times are various. To process synchronization, we have to choose a worst case time. If the time is not over 500ms, we can process it. Second Latency = 20 ms (<=500ms) initiator Receiver1 10 ms Receiver2 20ms

ZNet Framework (4) ,[object Object],The reparation of latency Because of latency, there is a error between initiator and receiver. The error can make another problem something like synchronization. For example, a batter hit a ball, the ball fly for 2secs and dropped. if a fielder received the information after 100ms, the ball of the batter’s screen dropped already but the ball of the fielder’s screen will drop after 100ms. This situation can affect a decision inside game. To solve the error, we adjust the process(visualization) speed of a action for each side. It’s a example to overcome a latency. time time First Latency (100ms) Ball speed : slower then receiver Ball speed : faster then initiator Initiator Receiver ACTION : HIT!!! 0 sec 2 sec

ZNet 1.0 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

ZNet 1.0 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

ZNet 2.0 Features ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

ZNet 2.0 Features ,[object Object],[object Object],[object Object],[object Object],[object Object]

ZNet 2.0 Features ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

ZNet Framework

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