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Programming Behavioral Experiments in Flash Session 2 of 3 Building Your First Flash Experiment

Programming Behavioral Experiments in Flash Session 2 of 3 Building Your First Flash Experiment. January 30, 2009 – Jeff Galak (NYU). Agenda for the Week. Session 1: Thursday, January 29 th (2-4pm): Intro to Web Programming, PhP, and Flash Session 2: Friday, January 30 th (10-12pm):

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Programming Behavioral Experiments in Flash Session 2 of 3 Building Your First Flash Experiment

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  1. Programming Behavioral Experiments in FlashSession 2 of 3Building Your First Flash Experiment January 30, 2009 – Jeff Galak (NYU)

  2. Agenda for the Week • Session 1: Thursday, January 29th (2-4pm): Intro to Web Programming, PhP, and Flash • Session 2: Friday, January 30th (10-12pm): Building Your First Flash Experiment • Session 3: Friday, January 30th (3-5pm): Advanced Topics if Flash (Sounds, Videos, and Real Time Ratings) Session 2 - 01/30/2009

  3. Agenda for Today • Working with Pictures • Reaction Times • Create a new experiment from “scratch” Session 2 - 01/30/2009

  4. Two Ways To Get Pictures Into Your Program • “Hard Code” them • Drag an image file from a folder directly onto the stage. • Note that Flash adds it to the library. • File -> Import to Stage/Library • Use ActionScript Session 2 - 01/30/2009

  5. Pictures and ActionScript • Use the “empty movie clip” place holder • Name it something: “imageLoader1” • Save an image file in the same folder as the program • In ActionScript, use the following code: loadMovie(“img.jpg", "imageLoader1"); Name of image file. Can be variable or string. Name of place holder. Can be variable or string. Session 2 - 01/30/2009

  6. Reaction Times in Actionscript • gettimer() • Starttime = gettimer() • Put this somewhere in the main part of the frame • Endtime = gettimer() • Put this wherever you exit the frame (e.g. when a button is clicked) • storedate(“reactiontime”,endtime-starttime); • Put this just below the endtime=gettimer() line • Done! Session 2 - 01/30/2009

  7. Creating a New Experiment: Steps • Duplicate existing experiment • Rename all the files to the new experiment name • Update “experiment”.php • Change experimentname • Set the right number of conditions Session 2 - 01/30/2009

  8. Creating a New Experiment: Steps • Program your experiment • Update the preamble to reflect the correct conditions • Do everything else • Test your program in Flash (use Trace when needed) • Compile your experiment: Shift + F12 • Create debriefing Session 2 - 01/30/2009

  9. Creating a New Experiment: Steps • Server Stuff • Connect to your server via FileZilla • Create a directory with the same name as your experiment • Upload everything • CHMOD the folder and files to 777 • Test your program online • Check that the data file is created and looks right • CHMOD the data file to 777 Session 2 - 01/30/2009

  10. Homework 1. Install software!! 2. Try and upload the existing files to your webserver and see if everything works • Make sure to check permissions (CHMOD 777 works well)…ask me for help 3. Take any simple questionnaire you have and try to turn it into a program (at least 2 conditions) • If you can’t get the web version to work just yet, try and get it to work locally (e.g. with CTRL+ENTER) • If you don’t have a questionnaire, I will give you one Session 2 - 01/30/2009

  11. Next Session • Session 3: Friday, January 30th (3-5pm): Advanced Topics if Flash (Sounds, Videos, and Real Time Ratings) Session 2 - 01/30/2009

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