Game Programming By J2me
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This document provides an introduction to game programming using J2ME (Java 2 Micro Edition). It discusses Java editions including J2SE, J2EE, and J2ME. J2ME is designed for resource-constrained devices like mobile phones and uses MIDP and CLDC. The document outlines creating a first J2ME application in NetBeans and discusses game design elements like sprites, tiled layers, and layer managers. It provides examples of these concepts and concludes with resources for further learning about J2ME game development.
Game Programming By J2me
- 1. Game Programming by J2ME By Hamada Zahera hamada.zahera@mufix.org
- 2. Outline • Java is Everywhere !! • Introduction to J2ME: features & Application • Your First J2ME Application (Demo#1) • Game Design & Architecture • Design your first game (Demo#2) • Deploying your application ٢ MUFIX Community © 2010
- 3. Java Is Everywhere ! • The Power of Java : it can be used not only for PC but also many different electronic devices as ٣ MUFIX Community © 2010
- 4. Java Editions !! • J2SE (Java 2 standard edition) is for developing desktop applications, GUI and Database Application (see J2SE API) • J2EE (Java 2 enterprise edition ) for Client serve applications , for example web sites. • J2ME (Java 2 micro edition) for applications which run on resource constrained devices (small scale devices) like cell phones, for example games. ٤ MUFIX Community © 2010
- 5. J2ME: (Java 2 Micro Edition) • J2ME is a java platform which is customized for developing applications for embedded devices like Mobile , IPhones , PDAs ,….., etc. ٥ MUFIX Community © 2010
- 6. J2ME Architecture • Basically , J2ME Applications run on a platform which is already support by almost of Mobile phones • By default , there are build-in Packages which support common functionality like GUI , I/O ,Bluetooth, Game API ,etc . These package called “MIDP” • Mobile phones are different in hardware configurations and resources like memory and feature • We have two configuration layer of Embedded Devices : Device with higher resources : set-top Boxes use CDC and Device with limited resources use CDLC ٦ MUFIX Community © 2010
- 7. MIDP - Mobile Information Device Profile (MIDP) is a key element of J2ME. - When combined with the Connected Limited Device Configuration (CLDC), MIDP provides a standard Java runtime environment for today's most popular mobile information devices, such as cell phones and PDAs - We have MIDP 1.0 , MIDP 2.0 Runtime Environment = MIDP+CDLC ٧ MUFIX Community © 2010
- 8. CDCL vs CDC J2ME Connected, Limited Device Configuration (CLDC) - specifies the Java environment for mobile phone, pager and wireless devices - CLDC devices are usually wireless - 160 - 512k of memory available for Java - typically has limited power or battery operated - network connectivity, often wireless, intermittent, low-bandwidth (9600bps or less) J2ME Connected Device Configuration (CDC) - describes the Java environment for digital television set-top boxes, high end wireless devices and automotive telematics systems. - device is powered by a 32-bit processor - 2MB or more of total memory available for Java - network connectivity, often wireless, intermittent, low-bandwidth (9600bps or less) ٨ MUFIX Community © 2010
- 9. J2ME Features JSR Name Description 75 File Connection File system, contacts, and PIM calendar, to-do 82 Bluetooth Wireless connections 135 Mobile Media API Audio, video, (MMAPI) multimedia 184 Mobile 3D High level 3D graphics Graphics 179 Location API GPS ٩ MUFIX Community © 2010
- 10. Demo#1 :Your First application • Prerequisites : - JDK 1.5 - Install NetBeans with mobility Pack ١٠ MUFIX Community © 2010
- 11. Game Design You have to concern with the following : – Logic – Characters – Graphics – Sounds ١١ MUFIX Community © 2010
- 12. Game Elements • 1.Sprite : game object like car , ball , persons which has some attributes like X,y coordinates and weight , width ١٢ MUFIX Community © 2010
- 13. Game Elements .. (cont) • 2.Tiled Layers: dividing the game background into small cells to save memory and allow other spaces for game objects ١٣ MUFIX Community © 2010
- 14. e.g. Tiling Game Background ١٤ MUFIX Community © 2010
- 15. Game Elements .. (cont) • 3. Layer Manager : it’s a container layer which group all game object together , game background so we can manage a series of layers simplifying the rendering process ١٥ MUFIX Community © 2010
- 16. Demo#2 : Game app ١٦ MUFIX Community © 2010
- 17. Resources • Books • Links: www.j2meforums.com ١٧ MUFIX Community © 2010
- 18. Thank you ١٨ MUFIX Community © 2010