Move with collision reacts along the contact normal: it travels to the surface, stays flush and slides the rest of the move along it with Coulomb friction (the mean of both colliders, a tile counts as 0.5), a circle now rolls over an edge instead of catching on it, pushed dynamic bodies move off along the normal, Move gains the outputs hit, normal x and normal y, an object without its own collider moves freely, and editor run and play share the same path through Solids; contact point and normal come from our own f64 geometry (contactBetween), because Rapier's castShape lands 3e-6 px inside the wall in f32 (#150)

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

tests/core/walk.test.ts

@@ -90,7 +90,10 @@ describe.each(COLLISION_SYSTEMS)('$system', ({ physics }) => {
       // Close the loop: the wall's collider is its child and the wall is parented to that collider.
       wall.parent = wallColliderEntity;
 
-      expect(collisions.moveAndSlide(world, mover, 10, 0)).toEqual({ blockedX: false, blockedY: false });
+      expect(collisions.moveAndSlide(world, mover, 10, 0)).toMatchObject({
+        blockedX: false,
+        blockedY: false,
+      });
       expect(mover.x).toBe(10);
       // And a whole tick, which walks every collider up to the body it belongs to.
       world.tick(1 / 60);