Game Programming By J2me

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Game Programming By J2me

  1. 1. Game Programming by J2ME By Hamada Zahera hamada.zahera@mufix.org
  2. 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. 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. 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. 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. 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. 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. 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. 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. 10. Demo#1 :Your First application • Prerequisites : - JDK 1.5 - Install NetBeans with mobility Pack ١٠ MUFIX Community © 2010
  11. 11. Game Design You have to concern with the following : – Logic – Characters – Graphics – Sounds ١١ MUFIX Community © 2010
  12. 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. 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. 14. e.g. Tiling Game Background ١٤ MUFIX Community © 2010
  15. 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. 16. Demo#2 : Game app ١٦ MUFIX Community © 2010
  17. 17. Resources • Books • Links: www.j2meforums.com ١٧ MUFIX Community © 2010
  18. 18. Thank you ١٨ MUFIX Community © 2010

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