Eduardo Araujo Dustin Littau

Agenda Introduction Requirements Design Testing Conclusion

What is Celdoku? Celdoku is a Sudoku adaptation for cell phones The game follows the same rules as a typical Sudoku game, but adds some new features for the mobile format

Why Sudoku? Sudoku is a puzzle that became popular in Japan in 1986 and achieved international popularity in It is often described as the Rubik's cube of the 21st century.[1]

Rules of Celdoku

Platform Cell phones using J2ME NetBeans 5.0 with the mobility pack was used for development Bluetooth transfer of builds to cell phone

J2ME J2ME stands for Java 2 Micro Edition Connected, Limited Device Configuration excludes AWT, and Swing libraries for better performance. New user interface was built for mobile devices called MIDP (Mobile Information Device Profile)[2]

J2ME Java program for mobile devices is called MIDlet

Netbeans

Requirements Fully playable Sudoku game using cell phone keyboard. Different difficulty settings Error Checking

Design

Celdoku Class

LogoCanvas Class

InstructionCanvas Class

DifficultyCanvas Class

GameCanvas Class GameCanvas accepts user input and paints the appropriate graphics based on the state of the Game class

Playing State (Easy)

Playing State (Hard)

Won State

Lost State

Game Class Keeps track of the state of the game, the game board and the number of errors made The methods from this class are used by GameCanvas to determine what to paint

Game Class

Board Class Generates puzzles based on pseudo- random template

Board Class Each template (4x4) can generate 4! or 24 different combination By rotating a template by 90 degree a new template is formed

Cell Class Entity class which stores the user input and solution

Testing A test bench was implemented to make sure all methods perform as expected. Error messages were coded into the program to aid in debugging A lot of on-platform testing was needed, due to major differences between the simulation and cellphone displays.

Conclusion The project is ahead of schedule Design phase and most implementation completed Beginning to focus effort on testing Additionally, the team is considering a multiplayer component if time permits.

References [1]I. Lynce and J. Ouaknine, “Sudoku as an SAT Problem”, Oxford University, 2006 [2]Martin J. Wells, “J2ME Game Programming”, Premier Press, 2004