A part that keeps its heading
A part's Rotation can be Fixed. It then holds its angle in the world while the tank turns, like a dominator's base or a compass needle.
What you see
A round tank on a dark square plinth, with a red needle across its middle. Aim anywhere: the cannon turns, the body turns, and the square and the needle stay exactly as they were, like the base of a Dominator.
The trick
The editor update of 6 October 2026 turned a part's old Spin speed field into a Rotation choice with three settings: With the aim (the usual: the part turns with the tank), Spins (turns on its own; the speed box appears) and Fixed. A Fixed part keeps its Angle in the world instead of following the aim. That is the whole trick.
Numbers that matter
| Field | Value | Notes |
|---|---|---|
| Rotation | Fixed | One of three: With the aim, Fixed, Spins. A part cannot be fixed and spin |
| Offset X, Offset Y | 0, 0 | Only the angle is fixed. A part placed off-centre still swings round the tank's centre as you aim |
| Angle | a direction on the map | Measured in the world, not from the aim: try it in the real editor to see which way 0 points |
Gotchas
- Only the angle is fixed. A fixed square at Offset X 60 keeps its corners pointing the same way but still orbits the body as the tank turns. Put fixed parts at the centre, or accept the swing.
- The editor's preview does not animate, so a Fixed part looks like any other there. Press Play.
- Everything riding a fixed part (lesson 19) stays fixed with it: a fixed hub with riders is a map-aligned frame to hang things on.
Where to use it
A dominator or a turret base; a compass needle on a navigator or an explorer; a shadow under a figure; a crown or a hat that stays upright while a face turns under it; a square frame that makes a round tank read as a crate or a tile.