These rollbacks are very costly, especially when playing a game, using high-latency wireless networks, on mobile terminals which have limited memory and processing speed.
#TOTALLY RELIABLE DELIVERY SERVICE INPUT LAG UPDATE#
The majority of these algorithms use rollback mechanisms to correct the inconsistencies that occur because of the disorder of the arrival of update messages. Consistency maintenance algorithms must be used to have a uniform view of the game world. In distributed virtual environments such as multiplayer games, where many users interact in real time while communicating through a network, the users may have an inconsistent view of the game world because of the communication delays across the network. It is shown that the choice between both schemes is application-dependent. The timewarp scheme is then compared to the wellknown dead-reckoning approach.
The computational complexity of the timewarp algorithm is determined in theory and practice by examining a simple networked computer game. Furthermore, a timewarp scheme is presented that complements local-lag by guaranteeing consistency and correctness for replicated continuous applications. We propose to exploit the knowledge of this tradeo by voluntarily decreasing the responsiveness of the application in order to eliminate short-term inconsistencies. Based on these definitions, it is shown that an important tradeoff relationship exists between the responsiveness of the application and the appearance of short-term inconsistencies. We give a formal definition of the terms consistency and correctness for this application class.
Typical examples of these applications are networked computer games and distributed virtual environments. In this paper we investigate how consistency can be established for replicated applications changing their state in reaction to user-initiated operations as well as the passing of time.
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