Provide a visual cue to the user during armband connect.

[aarontabor]

It takes a couple of seconds to establish a bluetooth LE connection with the Myo armband. During this time (which happens immediately after clicking either the "left" or "right" forearm button in the calibration wizard), the game simply hangs and provides no feedback to the user that something is happening.

Proposed solution

• [x] change the cursor to a "Throbber" animation (spinning wheel) during this time.

[aarontabor]

Is the icon we want one of these?

https://processing.org/reference/cursor_.html

[scottbateman]

I think we want something like this: http://www.stikes-aisyiyah.ac.id/daftar/media/public/img/loaders/loading4.gif

Here is an example of creating image based animations: https://processing.org/examples/animatedsprite.html

[aarontabor]

To make the cursor display as a throbber, use the following line:

cursor(WAIT);

You can switch it back with:

cursor(ARROW);