alice-teacher Alice 3.0 - getJoint Function

[Don Slater]

You have certainly identified some issues (I can count at least three) we need to look at.

But to solve your problem, try this:

1) Save the world with the broken dragon (just in case)…
2) Delete all the dragons from the world, and save it again, under a different name…
3) Reopen the world that does not have the dragons in it, and you should now be able to add a good dragon from the gallery.

Let me know if this does not work…

All the best,
Don Slater

On Oct 15, 2014, at 10:00 AM, Frank Hulsman <frankhulsman at yahoo.com> wrote:

> In Alice 3.0, I have a student who inadvertently changed one of the functions of a quadreped and now we cannot figure out how to get it back to the original code.
> 
> Details:
> 1.  He added a dragon to his scene.
> 2.  In the function getLeftWingBase, it had a return statement of return this.getJoint(LEFT_WING_BASE)
> 3.  He changed it to return this.getLeftWingBase
> 
> Question:  How can we restore this function to its original code?
> 
> Affect:  Every dragon we add, even new ones, has the revised, incorrect code.  
> If we export a dragon from another computer, and import the class, the incorrect function is not repaired.
> If we export the modified dragon, to another computer, the imported dragon has the incorrect code.
> 
> Frank Hulsman
> St. Xavier High School 
> Louisville, Ky 40217
> frankhulsman at yahoo.com
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> alice-teachers at lists.andrew.cmu.edu
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