Art Maker

Here's a very successful program I wrote recently. You just scribble on the screen, and press Enter; the program will generate some code for a program. You just copy the code, and then use the code as a new program on Khan Academy.

If you make a mistake, press Z to undo. As always, if you have a problem, comment and let me know!

Jelly Ball

A month or two after I wrote the Stretchy Ball program, I tried making the ball slightly transparent. The result: a clear jelly effect. I thought it looked cool, so I saved it as a separate program and named it "Lens Ball".

Soon another user on Khan Academy suggested making the ball jiggle whenever it was clicked. That sounded good, but I thought it would be more realistic if it jiggled no matter WHAT you did. I modified the program accordingly, and once I set it up to slide down the screen, the effect was complete. Here it is - just click and stretch: