v1.2.1

1.2.1 (2026-11-04)

This release makes a static shape that a host moves into a sleeping body touch it on the next step, and makes m2World_Restore refuse contact pairs the broadphase never makes. No golden line moves, and the snapshot and journal formats keep their versions.

Changed

• Results: no golden line moves (#319). Only a pair that a host call moves out of date gets a new manifold: a static shape moved into a sleeping body it already held a pair with. A pair whose shapes did not really move computes the same manifold as before.

Fixed

• A static shape that a host moves into a sleeping body touches it (#319). The step copies a pair's manifold forward without computing it when both bodies are static or asleep. m2Body_SetTransform and geometry setters such as m2Shape_SetPolygon move a static shape without waking a sleeper it does not touch, so when the two already held a pair, its old manifold stayed. A static wall teleported or widened into a sleeping box reported no contact points, no touching flag and no begin event, and moving the wall again did not wake the box. A pair with a moved shape now gets a fresh manifold, the one the same wall moved in from far away gets.
• m2World_Restore refuses a pair the broadphase never makes (#315): two shapes a mask or a negative group keeps apart, two sensors, two segments, a static shape with a kinematic one, two static shapes with a sensor among them, or the shapes of two bodies a joint without connected collision joins. The step kept such a pair until one of its shapes left its fat box, so the restored world pushed apart shapes the host keeps apart and reported a sensor inside another sensor. Two overlapping boxes pinned without connected collision ended 0.667 m apart after 30 steps with such a pair, instead of 0.6 m. A pair with a moved shape is still accepted, and so is a pair whose shapes drifted apart within their fat boxes.