Definition
Bone rigging is a type of animation where you attach a skeleton to the character, and then animate by moving the skeleton. This is an alternative to frame-by-frame and works very well if you are animating something from a single angle, as you cannot rotate a 2d image. In comparison to frame-by-frame, which takes a lot longer, but allows for more rotation and creative liberties.
Process
To start off with I added the provided file to a Unity project. I opened the sprite editor and added the appropriate geometry
After creating the skeleton it ended up like this
From there I added weight to the bones and organised the sprite influence.
Once that was sorted I put it into the Unity scene on a little platform.
From there I added proper limbs and set up the animation panel.
I had a bit of an issue with the sprite folding in on itself and some things going at strange angles, like the Left foot and the hands. So this is a subject I need more knowledge and practice with. After a bit of trial and error, I ended up with this idle animation.
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