Final - Electrical Engineering & Computer Science
Contents
1. well as options to select which game to play To select a button on the Wii Remote the user needs only to press the actual button on the Wii Remote itself The GUI indicates which button has been selected for modification by highlighting it on the onscreen Wii Remote image and also by saying the name of the button aloud Various drop down menus list the game controls that can be assigned to the selected button Users have the option of setting the level of sensitivity of the built in accelerometer that determines the amount of force needed to activate the control A display indicates the current line of code being generated from the user input The student is able to see the line of code associated with a given control and action Once students are happy with the control they have programmed it is committed to an overall script view of all the controls already programmed The game can be launched directly from the GUI using the finalized GlovePlE script Figure 6 GUI Screen Shot Save Satpal Lami Script 1 5 2 GUI Tutorial The GUI tutorial will give a general explanation of how to use the interface 1 5 3 Script Generator The script generator takes the current button mapping and a condition specified by the user in the GUI and generates the corresponding line of code 1 5 4 Input Output IO IO takes in the current game and line of script code created by the script generator and creates a file containing the lines of co2. arted back at square one VI Results The software delivered met all of the functional and non functional requirements initially requested by the client Some of the additional features included in the final product include having the computer say the name of the Wii Remote button that is being pushed when programmed in the GUI We also incorporated an extensive Users Guide Take Home Instructions if students were interested in using the technology at home and a PowerPoint that could be displayed by an instructor to students while using the software We also added more features in the software as explained in detail below i Project Progression The final implementation has a few design and scope goals that were initially optional As a team we decided to expand our scope to meet our client s needs These optional capabilities include the ability to expand beyond the initial two video games In addition to playing Asteroids and Maryo users can program the Wii Remote to interact with a web browser and interact with any online flash game As a result of this additional functionality we introduced an Advanced Configuration mode which allows the students to create their own scripts within the GUI They are given a general commented outline of how to code the script and are then free to implement the controls The major drawback of this feature is the current lack of error handling Should the student program something incorrectly the program wil
3. de These files are stored in a directory corresponding to the game When the game is launched from the GUI IO gathers the individual files and combines them into a single file This file is then sent to GlovePIE and the new controls can now be used to play the game 1 5 5 LaunchUtil LaunchUtil launches the GlovePIE and external game software The class also handles killing GlovePIE and external game processes Figure 7 UML Diagram UML Class Diagram 7 Main aay mand wii Gul um r intro Mawe ae kam 2 Class Outline iii Use Cases A Administrator performs system set up activities Pre condition BlueSoleil is installed and configured correctly and Wii Love Programming software CD is installed and launched Post condition The Wii Remote is connected to the computer and the software is ready for student use 1 Administrator follows user manual and connects Wii Remote to computer using BlueSoleil 2 Administrator launches software B Student engages in Wii Love Programming 1 Student reads introduction and selects to start game 2 Student plays the game with the default control scheme 3 Student views GUI Tutorial wi S POEN ON 12 Student reads instructions for the challenge Student uses GUI to select and remap control of a Wii Remote input a Student selects Wii Remote button input from GUI b Student selects game action Program displays correspondin
4. emote but will begin to understand programming The students will use a Wii Remote to control a video game on the computer where the controls are scrambled Students are then instructed to use the program to help redesign the controls on the Wii Remote to become more intuitive Students will have the ability to explore and modify the underlying programming code The program is visually appealing and easy to use allowing the students to easily understand how to redesign the controls PU reo OND Functional Requirements Create GlovePIE scripts through Java Launch video game and GlovePIE from Java Provide options to program and play different games Display programmable buttons swing features of the Wii Remote Display all possible game controls for each button swing feature 1 Display script code line s for chosen control Ability to preserve controls and create script Functionality to launch the game with current script View existing GlovePIE script as it is being created Edit script manually via interface 10 Provide Cheater Mode option 11 Start over feature that sets controls back to default 12 Save and Load features to preserve script controls ji Non Functional requirements Use Wii Remote technology for input source Provide visually oriented user interface Complete by June 17 2009 Use only open source software Allow for various activities 1 Video games 2 Internet Browser 3 Flash games 6 Promote interest fo
5. er and buttons Eleven out of the twelve buttons on the Wii Remote can be reprogrammed through the software The Power button is not programmable due to the risk of turning off the entire Wii Remote Additionally the students can use the accelerometer controls in the game They have the option of using six different swing motions These motions are up down left right rotate left and rotate right The swing motions also have a property that the students will set that determines the amount of force needed when swinging the Wii Remote to activate the accelerometer control Figure 2 Wii Remote 1 2 BlueSoleil Module The Wii Remote connects to the computer via Bluetooth technology which allows for wireless exchange of data over short distances By using Bluetooth dongles that connect to the computer via a USB 2 0 port any computer can become part of a network of wireless devices External Bluetooth connection software called BlueSoleil is necessary to connect the Wii Remote to the computer BlueSoleil allows the Wii Remote to be detected by the computer establishes a wireless connection between them Figure 3 and allows for the detection of movement or button presses on the Wii Remote by the computer 1 3 1 4 Figure 3 BlueSoleil 1VT Corporation HiueSolell Main Window fle Yew My Retocth My Services Took Heb GlovePIE Module GlovePIE or Glove Programmable Input Emulator is a scripting language that allows the inp
6. g generated script code Student saves the current generated script code Student repeats steps 5 7 until satisfied with controls Student selects to start game Program launches GlovePIE hidden and game 11 Student tests controls by playing game Student returns to GUI and selects to resume programming 13 Student selects to progress to the next challenge start step 4 with new challenge Alternate Flow 4 a Student selects Wii Remote accelerometer input from GUI 4 b Student selects game action 4 c Student sets condition Alternate Flow 13 a Student is not satisfied with controls and returns to GUI C Student engages the Advanced Configuration mode 1 2 3 4 5 Student selects Advanced Options menu then Advanced Configuration Warning message appears a No error handling in this mode so changes may break the software Student reads instructions in GUI Student manually edits script code Continue at Use Case B 9 D Student engages the Enable Cheater Mode option 1 WA 3 4 Student selects Advanced Options menu then Enable Cheater Mode Checkbox appears already checked indicating cheater mode is on Corresponding game actions with cheats are generated Continue at Use Case B 5 Alternate Flow 3 a Student un checks checkbox to turn cheater mode off 3 b Corresponding game actions no longer generate cheats 5 Student selects Advanced Options me
7. l not catch the error and when the final script is launched in GlovePIE it may or may not cause the software to crash Another expansion to the scope was Cheater Mode This mode demonstrates the capability of the Wii Remote when working with GlovePIE GlovePIE maps different key strokes to any given input from the Wii Remote Multiple key strokes can be mapped to one button press or action Cheater mode currently enables the Asteroids ship to shoot four times instead of once and also allows Maryo to jump twice instead of once VII Conclusions The Wii Love Programming software has been completed successfully and should make a positive impact on high school students and bolster interest in computer science The incorporation of Wii Remote technology and general computer science concepts should help increase students interest and awareness of the computer science field as well as the endless possibilities of technology This increased interest and awareness will promote enrollment in the computer science department at universities i Future Directions The Wii Love Programming software can be expanded in numerous ways to provide an even more interactive and exciting design Some of these options include error handling additional games and challenges multiple controllers a more applicable cheater mode and the incorporation of graphs and physics 1 Error Handling When in Advanced Configuration mode the students have the ability to w
8. mode currently supported could expand to support other cheat features Currently the cheater mode is very limited due to the simplicity of the games provided It could make combination moves that involve multiple key strokes very easy to do with just one Wii Remote control 5 Graphs and Physics The incorporation of graphs and physics into the software would be very beneficial to students The Wii Remote uses an accelerometer to track its swing actions Some future possibilities include dynamically graphing motions based on preset conditions displaying the relationship between acceleration and velocity and related activities VIII References 1 Johnny Lee Carnegie Mellon University Professor _ johnnylee net projects wii 2 BlueSoleil Website www bluesoleil com
9. ntirely open source and were chosen because they would be fun and intuitive to use with the Wii Remote The software also allows for open ended use in playing online flash games iii Issues One of the main issues that we had to deal with was the use of batch files We were planning on using an external batch file to launch all o f the necessary components used when running the software That included GlovePIE scripts and the different video games Unfortunately this was not possible due to the problems we had trying to map path names from a windows system into Java We decided it was more trouble than it was worth and instead chose functionality with batch files and then duplicated those features with the LaunchUtil class Another issue we faced that eventually turned out in our favor involved BlueSoleil After agreeing to use BlueSoleil we realized a license would need to be purchased to use the software for more than 15 days After contacting BlueSoleil and explaining our project in detail they were gracious enough to give us a free license Another obstacle faced was a redefinition of the project 1 weeks into the term The team determined that the project goals could be better met with an entirely different project It was up to us as a team to design a project that we felt was educational and involved Wii Remote technology which also promoted Computer Science Wii Love Programming was our idea and after client and advisor approval we st
10. nu then Cheater Mode 6 Checkbox disappears and cheats are no longer generated E Student selects to save current script file 1 2 Student selects option to save Program prompts for save path 3 Student enters path and saves file Alternate Flow 3 a Path is invalid 3 b Repeat step 2 F Student selects to load previous script file 1 Student selects option to load 2 Program prompts for load path 3 Student enters path 4 Program saves loaded file into the batch file Alternate Flow 3 a Path is invalid 3 b Repeat step 2 V Implementation Details i Language The software was designed using the Java language The team chose to use Java due to its simple and powerful GUI design and implementation abilities ii Writing vs Using Code The functionality required for the Wii Love Programming software was very specific so all implemented Java classes were written by the team Other components of the system design used a variety of external software including BlueSoleil GlovePIE and video games BlueSoleil was highly recommended by a professor at Carnegie Mellon University as the easiest and most efficient software to manage Bluetooth connections References 1 BlueSoleil was gracious enough to provide a free license for their product GlovePIE was chosen because it was open source easy to use and did not require any installation making it very easy to incorporate onto the final CD The video games used are e
11. r Computer Science oe o IV Design i High level Design The Wii Love Programming software features a Java based user interface that interacts with the Wii Remote Bluetooth wireless technology GlovePIE scripting technology and external video games An architecture diagram has been included Figure 1 Figure 1 Architecture Diagram Wii Love Programming Architecture Diagram Java App GlovePIE Scripts Wii Remote gt Biutooth via BlueSoleil GlovePIE Game Wii Remote The Wii Remote is a handheld Bluetooth device that allows users to interact with software via an accelerometer BlueSoleil Bluetooth is a very common form of short range wireless technology To facilitate the interface between the Wii Remote and the computer system software called BlueSoleil is used GlovePIE GlovePIE stands for Glove Programmable Input Emulator The software uses GlovePIE to capture data from the Wii Remote and store this data in a file GlovePIE runs user defined scripts and a batch file can be utilized to launch a predefined script External Video Game Software The Wii Love Programming software interacts with external video games ii Detail Design 1 Modules 1 1 Wii Remote Module In conjunction with the software a Wii Remote Figure 2 operates the game being played The Wii Remote connects to the computer via Bluetooth allowing the student to interact with the game through movement via the acceleromet
12. rite and edit their own scripts to interact with internet browsers and online flash games The only downside to this feature is that there is no error handling If a student were to enter something incorrectly the software may ultimately crash when the script was run Some form of error handling would be extremely helpful and educational for the students to have while manually editing scripts This may be very difficult to implement because the script is meant to be very open ended and the students could be mapping a variety of key strokes 2 Other Games and Challenges Currently only two games are available Asteroids and Maryo but more games would provide a more diverse learning environment Some games may be more intuitive when used with a Wii Remote as opposed to a keyboard One option is Frogger Swing motions from the Wii Remote would be a great way to maneuver the frog More games could provide challenges for the students to complete There are endless possibilities to the types of challenges that could be incorporated 3 Multiple Controllers Another possibility would be incorporating multiple Wii Remotes or Nunchuck controllers This could be especially useful for games that may have a lot of game actions or ones that would be intuitive to use with a component in each hand This functionality would depend on the specific game Multiple controllers could also allow multiple users to play the same game 4 Cheater Mode The basic cheater
13. ut from the Wii Remote to be translated into key strokes which control the game being played The GlovePIE scripts dictate the controls and are written through the system Having students visually manipulate the Wii Remote controls through the GUI will in turn translate to lines of scripting code in GlovePIE The GlovePIE script can then be used to play the game with the new controls External Video Game Software Module Students will be able to play a variety of out of copyright and open source games using the Wii Remote After a script is created through GlovePIE the game starts and is played using controls specified in the script Currently these games include Asteroids Figure 4 and Maryo Figure 5 Each game has a set of controls to interact with and progress through the game These set controls are options for the Wii Remote controls in the GUI allowing students to indicate what Wii Remote input dictates which game control Figure 4 Asteroids 6 3 ASTEROIDS US PLAY GAME w ww neave com games Figure 5 Maryo 1 5 Java Application Module The Java application provides a variety of support services including a graphical user interface tutorials script generation input output support and launching utilities These sub modules are explained below 1 5 1 GUI The GUI allows the user to interact with the internal workings of the software Figure 6 The GUI includes a display of the Wii Remote as a visual aid as
14. wi Programming CSM4 Rawan Bardini Zach Fager Jeff Neet Client John Jackson Advisor Cyndi Rader CS Field Session 2009 I I Abstract Female enrollment in the field of computer science is declining Demonstrations of cutting edge technology can be used to promote interest and increase enrollment The incorporation of Wii Remote technology targets these demonstrations toward high school students This technology allows for the creation of visually oriented interactive demonstrations that showcase the relationships between hardware software and the physical world Students can experience a hands on example of computer science and software engineering in action Introduction Female enrollment in the field of computer science is declining both at the Colorado School of Mines and nationwide CSM is running technology camps and outreach clubs to attract middle and high school students to the field of computer science John Jackson the active leader of these activities has been awarded a grant to promote enrollment by developing visually stimulating and interactive computer science based activities This demonstration should encourage young students to pursue interests in the computer science field and potentially enroll at CSM Il Requirements The Wii Love Programming software has been designed to incorporate Wii Remote technology into an educational setting where students will not only enjoy working with the Wii R
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