Any piece can be set moving. Take hold of it, open Motion in the palette, and choose:
- Spin — turns the piece where it stands, about the axis you point the buttons at, up to half a turn a second.
- Sway — walks it out to somewhere and back again, in whatever time the cycle says. It leaves and arrives at a standstill rather than snapping back to the start.
- Make this the root, then take hold of another piece and Attach to the root. An attached piece takes the root's movement on top of its own — which is how a spin becomes an orbit, and how a rig of beams becomes one machine that moves together.
Nothing about this is sent while it runs. A spin is a rate, and every player works out where the piece is from the world clock they already share, so a rig turning in an empty village costs nothing and everyone sees it at the same angle.
A moving piece is something you walk through.
Its collision stays where it was set down rather than being dragged about, and
it sits on a layer you pass through — a sweeping beam that could shove you
off a roof would be a poor sort of decoration. You can still click it to take
hold of it.
A set lives on one patch of ground: pieces more than a chunk apart cannot be attached to each other. A rig saved as a blueprint keeps its links, and raising it somewhere else rebuilds the whole machine.