摘要
随着移动通信技术的发展和无线数据业务的进步,无线终端在人们日常生活中的使用也逐渐得到普及,手机已被赋予了除通话以外的其他许多功能,全新的手机游戏领域已逐渐聚焦了众多软件开发商的目光。
目前手机游戏是发展最快的电子娱乐形式,玩家更喜欢那种可以随时随地就能玩的在线联网游戏。但是根据目前的条件,网络游戏将面对很长时间的延缓。作者注意到一般具有蓝牙手机的用户只是用其传送文件、图片,但是很少有用其玩游戏的。所以在目前情况下,本文一改往日传统的联网方式,采用越来越流行的蓝牙技术组建局域网以解决由终端、资费等带来的问题。蓝牙并非一项新的技术,但是利用JAVA在MIDP平台上开发蓝牙应用程序却是一项新的技术,作为短距离内无成本的无线网络技术,蓝牙有着巨大的发展潜力。
本文利用J2ME平台及JAVA蓝牙无线API开发了一款手持设备上的蓝牙联网游戏。目前,在无线领域开发游戏可以选择的平台有很多种。通过比较,本文选择了普及性最好的J2ME开发平台,并对J2ME的整个体系作了详细的讲解,主要包括J2ME的有限设备配置(CLDC)和移动信息设备简表(MIDP)方面的介绍。本文围绕J2ME平台上的手机游戏开发技术为主题,进行了游戏开发的基础理论和相关开发技术的研究,并在J2ME平台上完成了设计与实现。另外详细分析了本次手机游戏开发所需的关键技术以及面对的挑战,如内存空间有限、多线程的使用等问题。研究重点放在游戏的整体架构设计、功能模块设计、蓝牙联网模块设计、蓝牙客户端与服务端数据传输以及多人联网中的同步问题。在合理选择设计方案的同时,尽可能的优化J2ME的实现。游戏的实现从构建运行环境入手,对类进行设计,并且给出了几个具体类的实现以及游戏的运行结果,在模拟与真实环境下均进行了测试。最后,对全文工作进行了总结,并对下一步的工作和J2ME移动应用开发的前景进行了展望。
Wireless terminals in people's daily life use have gradually become popular with the development of mobile communication technologies and the improvement of wireless data traffic. Cell phones are given another function besides calling. A brand new cell phone games' field attracts many software developers' eyes.
The video game market is currently the fastest growing form of E-entertainment. Today's players like multiplayer online games and have the ability to play anytime/anywhere using cell phones. However, according to the existing conditions, online games will face very long delay. The author noticed that most users generally use bluetooth phones to transmit files and pictures, few people use it to play game. So in present circumstances, the author changed the traditional mode of networking and adopted more and more popular bluetooth technology to set up a LAN, to solve problems incurred by mobile terminals and cost. Bluetooth is not a new technology, but using JAVA to develop bluetooth applications on the MIDP platform is a new one. As a no-cost, short-distance wireless networking technology, bluetooth has great potential development advantages.
This thesis uses J2ME platform and JABWT to develop a bluetooth based online game on handheld devices. There are a variety of development platforms in wireless field. After detailed comparison, we select the best popular J2ME platform for this development and discussed the entire J2ME architecture in detail, including CLDC and MIDP, focusing on the game development which is based on the J2ME platform. We study basic theory and related development technique in the first part of the thesis and then implement an application at last. In addition, some key technologies and challenges, e.g. a limited memory space and the usage of multithread, are analysed. Key points of this thesis are design of the entire architecture, function, connection between client and server and the synchronization of multiplayer. We choose a reasonable design pattern for optimizing the realization of J2ME. System realization is started with building system operation environment, and then objects of system classes. The detailed realization of some concrete class objects has been described and the system operation results have been given in the final part of the thesis. The implemented demo system has been tested in a simulation as well as in a real environment. The last chapter gives summary and prospect of the system.
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