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Alice 3.0 A Guided Tour

Alice 3.0 A Guided Tour. Mike R-D YRDSB. Agenda. General Walkthrough of Alice 3.0 Loops, Variables, Threads Methods / Properties Arrays Misc. Warning!!. Alice 3.0 is still in Beta http://bugs.alice.org:8080/secure/IssueNavigator.jspa?reset=true&pid=10000&status=1. Getting Alice 3.0.

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Alice 3.0 A Guided Tour

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  1. Alice 3.0A Guided Tour Mike R-D YRDSB

  2. Agenda • General Walkthrough of Alice 3.0 • Loops, Variables, Threads • Methods / Properties • Arrays • Misc

  3. Warning!! • Alice 3.0 is still in Beta • http://bugs.alice.org:8080/secure/IssueNavigator.jspa?reset=true&pid=10000&status=1

  4. Getting Alice 3.0 • The beta and all updates can be found at: • http://kenai.com/projects/alice/ • Just download, run, will install (need internet access)

  5. Overview • Start Up • Editor • Scene Set up • Camera Control • Writing Programs

  6. Start Alice: Editor Overview VIEW Control Structures Run Button Object Tree EDITOR DETAILS Go to Scene Set Up

  7. File: New… • Different Scene Templates Template view Initial backgrounds

  8. File: Open… • Choose either My Projects or File System Click on either tab (File System selected, here)

  9. The 2 Views of Alice: Code Editor Control Structures Return to Scene Editor Editor Objects public methods, procedures and properties

  10. The 2 views of Alice: Scene Editor Run Button Object Tree VIEW Add Sims Return to Editor Add other objects Camera Controls

  11. Gallery • In Scene Set Up • Generic Alice Models • Looking Glass Characters • Looking Glass Scenery • Sims NOTE: Single-click to navigate the gallery!

  12. Add An Instance of a Class • Find the Class in the Gallery • Single-click • Prompted with dialog box • Change name if you wish • Click OK • The instance (a particular object of the class) will be added to the scene • Tile added to the object tree

  13. Add an instance of a Sim

  14. Position of Instances in Scene • Click on the instance • Will see a yellow bounding box • Mouse Controls • Click + drag: position object horizontally • Click + ctrl + drag: turn object right and left • Click + shift + drag : Vertical • Future: • Roll the object from top to bottom, side to side

  15. Camera Placement • Be careful! Easy to get lost, no easy way to get back at the moment • Mouse • Right-click + drag: • move camera horizontally • Left, right, forward, back • Shift + right-click + drag • Move camera vertically • Ctrl + right-click + drag • Turn the camera • Mouse control wheel • Zoom the camera

  16. Write a Program • In the Editor View • Select instance from the object tree • Select method in details pane and drag to the editor window • Drop in indicated position • Select parameter values if presented with choices

  17. Copy / Delete • Delete instances from program • Right-click on object in object tree • Select delete • Delete program statements • Right click on statement in editor • Select delete • Copy statements • Alt + click + drag to position for the new statement • Has some problems, use judiciously

  18. Demo • Note the export feature

  19. On your own • Launch Alice 3.0 • Create a world with 1 sim, experiment with the different movements • Explore the functionality • For next part: Line up 5 sims in a row, have each do jumping jacks together, with a 5-second pause between each jack

  20. On Your Own • The file OnYourOwn1.a3p has been placed at http://www.cheshire.ca/si2009

  21. Alice 3.0 More Advanced Stuff

  22. 1) Loop, Variables, Threads • Alice has a built-in Threading mechanism to allow things to happen at the same time (same as Alice 2.0) • Alice has conditional and counting loops • Alice allows variables at the class and at the method level.

  23. 1) Threads, Loops and Variables • Demo - Astronaut

  24. 2) Create your own methods / properties • Considerably different from Alice 2.0 • Allows access to constructor • Still has procedure-function split

  25. 2) Gravity Demo • Set-up scene with • Sim • Ball (Sports) • Create scene property called gravity • Create ball or scene method called drop • implement

  26. 3) Arrays • An arrayis a container object that holds a fixed number of values of a single Type. • Comic strip: an array of drawings

  27. 3) Arrays • 1D only • Must create objects first, then create the array and add the objects into them • In Alice 2.0 and 3.0 this starts to stress your sanity • Try creating a pacman game!!

  28. 3) Arrays [1D only]

  29. Alice Zombies ZombieDance.a3p Array of 5 Zombies

  30. Indexing example • As in Java, indexing begins at 0. • The last zombie is at index 4. Jasper the zombie will kick his right leg 0 1 2 3 4

  31. Iterating through an array- Alice • In Alice, a for each loop can be used to access each object in an array, one at a time. Each of you zombies, kick your leg!

  32. 3) Your Turn!! • Let’s rehash our old demo • We want to use an array instead of individual variables • Create an array, add all the sims to it, change the code to use ‘each in x together’

  33. Other Neat Stuff • Let’s take our demo and export as a movie or send to Youtube. • Capturing Mouse/Key events [work in progress]

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