This document summarizes a training session on 2D game development for Nokia Series 40 phones. It discusses the large market for Series 40 games, available APIs and documentation, concepts like sprites and layers, the NetBeans plugin for game development, and considerations for optimizing games for different Series 40 devices. Live demos were also provided of building a sample game using these APIs and tools.

1. Series 40 Developer Training
Getting Started with 2D Game
Development on Nokia Series 40 Asha
Phones
Michael Samarin, Ph.D
Director,
Developer Training and Evangelism
Futurice Oy
+358 40 518 18 09
michael.samarin@futurice.com
@MichaelSamarin

2. Today’s Topics
» Understanding Gaming Market for Series 40
» Where to get more information
» 2D Game APIs in Mobile Java
» Demo of 2D Game Building Concepts
» NetBeans 7.1 and Game Builder Plugin
» Walking Through Game Builder Sample
» Series 40 Devices and 2D Games Performance

3. Series 40
» 675 Million Devices
» 3.9 Million Daily Downloads
» Price range 35 – 140 Euro
» Gaming Studios to compete with: EA,
Gameloft, Rovio, India Games

4. Nokia Developer Guides and Docs
» http://www.developer.nokia.com/Resources/Library/Java/#!dev
elopers-guides/ui-and-graphics/game-api.html
6/4/201
4
2

5. Nokia Developer Guides and Docs
» http://www.developer.nokia.com/Resources/Library/Java/#!dev
elopers-guides/ui-and-graphics/game-api.html
Oracle (Sun) Guides and Docs
» http://developers.sun.com/mobility/midp/articles/gameapi/
» http://developers.sun.com/mobility/midp/articles/game/

6. › Game API Package (MIDP)
› javax.microedition.lcdui.game
› GameCanvas
› Layer
› LayerManager
› Sprite
› TiledLayer

7. › GameCanvas
› Double buffered
› Convenient for minimizing code
of game loop
› Methods for querying status of
keys

8. › GameCanvas
public class MyCanvas extends GameCanvas implements Runnable {
public void run() {
Graphics g = getGraphics();
while(true) {
// update the game state
int k = getKeyStates();
// respond to key events
flushGraphics();
}
}
}

9. ›
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›
›
Live ›
Demos: ›
›
›
›

10. › Graphical Assets

11. › Graphical Assets – Sprite Star

12. › Graphical Assets – Sprite Lightning

13. › Layer
› Abstract class, any visual game
element
› LayerManager
› Combines layers together,
provides viewport

14. › Sprite
› Animated game object
› TiledLayer
› Game areas, backgrounds

15. › Sprite
› Animated element of the game
(character)
› Define Sequence, Delay
› Flip, Rotate
› Define Reference Point
› Detect Collisions

16. › TIledLayer
› Defines game backgrounds
› Can be animated
› Doesn’t have Sprite methods

17. ›
›
›
›
Live ›
Demos: ›
›
›
›

18. › NetBeans Game Builder Plug-In

19. ›
›
›
›
Live ›
Demos: ›
›
›
›

20. Asha 303 Nokia 111

21. › Java Heap size (1 – 4 MB)
› JAR file size ( 1 – 2 MB)
› CPU speed
› Screen Size 240x 320, 320x240,
Consider 128x160
› Input Type: T9, Qwerty, Touch-And-
Type
› Use Nokia Device Matrix
› Remote Device Access

22. Thank you!
@MichaelSamarin