The Study, Based On The P2p Framework For Large-scale Online Games

P2P models and applications have been discussed and researched in depth these years, meanwhile accompanying with the development of the network, Application Layer Multicast ( ALM) is widely used. Comparing with C/S mode, P2P mode enhances the connection between any two hosts among the internet, so, it can take use of the idle resources among internet and reduce the burden of server. ALM can avoid the same message be sent for many times and use of the internet resources efficiently. P2P model combines with ALM both enlarge the resources and using them efficiently, these characteristics meet the demand of Massive Multi-players Online Games (MMOG).P2P model oriented at MMOG is discussed in this paper. Fist, a survey of MMOG is given, and MMOG architecture has been classified into three types: local network based on point to point communication, C/S mod and P2P mode, and analysis according to the classification is given; Then, According to the characteristics of MMOG (Scalability, synchronization, message filtration according to the Area Of Interesting, message delay) and the attribution of Delaunay triangular network, DT-P2P model has been proposed and the routing table, routing strategy, join and leaving of the node, ALM based on DT-P2P model have been designed; Further more, the usability of DT-P2P to design MMOG has been discussed , based on DT-P2P model, solution of synchronization, message filtration, local data management and NPC management has been proposed; At last, a C/S-based MMOG has been improved base on DT-P2P model, and the result has been given according to the simulation.