Room Mirror
by @sliceEvery room of your level
The maker wrote these words. Spawn hasn't checked what they claim.
v1.0.0 · updated
Every room of your level, copied side by side into a review place and labelled, so you can walk around them, compare them and fly through them from outside. You and Savi keep editing the real rooms; the copies rebuild themselves a few seconds after each save, one way only, in the build room only (the posted game never runs it).
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Rooms can be rectangles or L-shapes on any floor, a room's walls can come along as a shell, and a whole place (an apartment, an intro level) can be copied as one block. Copies are look-alikes: same shapes, paint and lights, with the behaviors and sounds stripped so nothing in the field acts up. Install it, then say "/room-mirror" and Savi maps your rooms.