Fall Guys

Multiselect & the Pivot Object

My main piece of work was multiselect for the level editor: letting a creator grab several placed objects at once and move, rotate, or scale them together instead of one at a time.

The approach centred on a single _selectedObject that acted as the pivot for the whole selection. Every transform change applied to it (a drag, a rotation, a scale) was measured as a delta rather than an absolute value, and that delta was then broadcast out to every other object in the selection. Each object applied the same delta relative to its own starting transform, so the group kept its shape and relative spacing no matter how many objects were selected or where the pivot sat within them.

The team's original discussion was about replacing _selectedObject with a hash set so the selection had no single pivot at all. That would likely have been the cleaner long-term design, but it also meant a core system refactor. I suggested the delta approach instead: it kept the pivot object in place and let it stay abstract from the rest of the selection system, since the only thing being shared between them was a primitive delta value. It got us the same result with far less risk to the existing code.

Gameplay footage courtesy of the official Fall Guys channel.

Object Rotation

Alongside multiselect I worked on object rotation in the editor. Rotation had to play by the same rules as the rest of multiselect: a rotation applied to the pivot needed to rotate every other selected object by the same delta, not just spin each one in place, so the two pieces of work were closely tied together.

General Feature Work & Bug Fixing

Beyond multiselect and rotation, most of my time went into general feature work and bug fixing across Creative Mode as the team pushed toward release.

Gameplay footage courtesy of the official Fall Guys channel.

References

• Michael Kaiser
• Andrew Hosfield