Anyone have ideas on how to keep a air unit from floating? Like if you stop, don't hover, fly in a circle. One thought I had was have it followed by an observer, and if the observer catches up, make it mover around.

Junkyard dog. That only works in certain situations (like you have only one air unit that must not stop).

Another solution: grid systems.

Depends what your trying to do... wanna tell us? JNKD is usualy good fix, I would suggest a extreamly fine grid system (Not advised for huge maps...) but if they stayed at a certian spot for more than a few miliseconds have the triggers display that they will crash or die if they dont keep moving, or... use "move to location" every couple of milliseconds and have it center on the air unit (Will get increasingly annoying when trying to move...) or use order to location and have it centered on it.

If you constantly order it back to a spot it shouldn't drift with hyper triggers.

Falk, I believe he is asking how to do the exact opposite... I was confused at first, too. I think he's asking how to make it so asthetically your unit doesn't stop moving but moves in circles for when you stop giving it commands.

Honestly, it'd be pretty easy to just trigger something that could make it move in little hexagons, but it'd just be 1 extra pain for the player to get out of the string of orders, and the unit would have to hover and not move for a duration to know to start the orders anyways. Basically, unless this would actually affect gameplay or balancing, don't waste your time with it.. it'd be more annoying than aesthetically pleasing, in my opinion.

You could make its movement automatic and control it by setting direction only.

Mobile ground grids, although this would be messed up if you go over non-ground, I used a method like this to make a half-burrowed lurker circle your unit.