Design And Implement A Mobile Game Based On The Virtual Machine

In today's information society, mobilephone has become one part of the people's daily life.With the development of wireless data traffic and mobile communication technologies, the function of cell phone is more than calling. So, it is very obvious that the development of mobile game function of cell phone has become a market trend. It will be a new important growth point of bussiness.Doja is a kind of patent technique of Japan's largest mobile communications company, NTT Docomo. In the company, the i-mode is an application model of 2.5G mobile communications, which covers many aspects. i-mode started in 1999 and the i-appli, a combinnation of i-mode and java, started in 2001. So, Doja is a special i-mode technology developed by Java. Actually, the technique is based on CLDC specification's platform, parallel with J2ME standard platform and own separate API class library. hence, Doja can utilize various Java(languages)to archive many complex roles on phones.2D mobile animation is a frame-based mobile application.In 1second,the monitor of the mobile displays some background pictures,some characters,because of the people`s eye's visual suspended,so formed the 2D animation.Most of the mobile device has constraints in stack and packet storages, so how to make good use of the mobile resource becomes the crux of the design.In animation design, animation statements are based on individual actions stored in XML files.By studying the characteristics of a variety of XML parser, consider the phone's memory and processor limitations, adopting PULL (pull) parser KXML to parse the data, KXML is smaller, faster than the footprint the DOM-based parser.at last programming to implement the animation action.