gintas

FWIW, in case you don't have a retina display, zooming in your browser works just as well to make the difference in quality visible.

> I would really like to write an entire program sometime as a big tree, that would be convertable back and forth to something simple like JSON.

That would be Lisp.

> convert my simple statements like "when this sprite touches this sprite, give them opposite speeds) into the underlying code so I don't have to waste my time with it.

That's function application (if at runtime) or macro expansion (if at compile time).

It seems to be using the pentatonic scale, which is generally easy to deal with. It is also quite limited though, with only 5 pitches available out of the standard 12 in an octave.

I read a course on Python for a semester, and I tried to use a similar approach: relatively few tests, a minor project for warmup and a major project (with emphasis on attendance & communication). I think it went fine, but it's not as easy as it looks. In particular, students would "show up", but it's not easy to motivate them to do more serious work.

That's the kind of info I was looking for. Thanks!

What's the point of a "hierarchy" then, if the "upper" levels do not depend on the "lower" ones? Basically what you're saying here is a tautology: one is able to operate at a "level" that, well, one is able to operate at.