http://slicker.me/javascript/turtle.htm
Turtle graphics is available for example in Logo (since 1960s) and Python, but not in JavaScript.
Or is it? It dawned on me that context.rotate basically emulates 'turn left/right' and context.translate combined with moveTo/drawTo behaves just like 'move forward/back'.
This is definitely not an elegant or scalable way of programming graphics - kind of like tying your shoe with an earthworm: it looks cool, but only works in certain conditions. Just another gizmo in my collection of weird code. If you to play with real turtle graphics, I suggest you use one of the many available JS libraries, Python or Logo. Or at least create actual functions that move and rotate the turtle to make your code readable.
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