physics: predict_collision_face_out returns directed edge

engine/physics/src/model.rs

@@ -757,7 +757,7 @@ impl MinkowskiMesh<'_>{
 				.map(|(face,time)|(face,-time))
 		})
 	}
-	pub fn predict_collision_face_out(&self,relative_body:&Body,Range{start:start_time,end:time_limit}:Range<Time>,contact_face_id:MinkowskiFace)->Option<(MinkowskiEdge,GigaTime)>{
+	pub fn predict_collision_face_out(&self,relative_body:&Body,Range{start:start_time,end:time_limit}:Range<Time>,contact_face_id:MinkowskiFace)->Option<(MinkowskiDirectedEdge,GigaTime)>{
 		//no algorithm needed, there is only one state and two cases (Edge,None)
 		//determine when it passes an edge ("sliding off" case)
 		let start_time={
@@ -787,7 +787,7 @@ impl MinkowskiMesh<'_>{
 				}
 			}
 		}
-		best_edge.map(|e|(e.as_undirected(),best_time))
+		best_edge.map(|e|(e,best_time))
 	}
 	fn infinity_in(&self,infinity_body:Body)->Option<(MinkowskiFace,GigaTime)>{
 		let infinity_fev=self.infinity_fev(-infinity_body.velocity,infinity_body.position);