2 files changed, 68 insertions, 61 deletions

diff --git a/assetFactory/faceController.cpp b/assetFactory/faceController.cpp
index 6493300..bafbee2 100644
--- a/assetFactory/faceController.cpp
+++ b/assetFactory/faceController.cpp
@@ -14,82 +14,86 @@ FaceController::apply(ModelFactoryMesh & mesh, const StyleStack & parents, const
 			});
 }
 
+std::string
+FaceController::getAdjacentFaceName(
+		const ModelFactoryMesh & mesh, const std::span<const OpenMesh::FaceHandle> ofrange, OpenMesh::FaceHandle nf)
+{
+	const auto nfrange = mesh.ff_range(nf);
+	if (const auto target = std::find_first_of(ofrange.begin(), ofrange.end(), nfrange.begin(), nfrange.end());
+			target != ofrange.end()) {
+		return mesh.property(mesh.nameFaceProperty, *target);
+	};
+	return {};
+};
+
 void
 FaceController::applySingle(ModelFactoryMesh & mesh, const StyleStack & parents, const std::string & name,
 		Shape::CreatedFaces & faces) const
 {
-	const auto getAdjacentFaceName = [&mesh](const auto & ofrange, OpenMesh::FaceHandle nf) -> std::string {
-		const auto nfrange = mesh.ff_range(nf);
-		if (const auto target = std::find_first_of(ofrange.begin(), ofrange.end(), nfrange.begin(), nfrange.end());
-				target != ofrange.end()) {
-			return mesh.property(mesh.nameFaceProperty, *target);
-		};
-		return {};
-	};
-
 	const auto controlledFaces {materializeRange(faces.equal_range(name))};
 	if (controlledFaces.empty()) {
 		throw std::runtime_error("Named face(s) do not exist: " + name);
 	}
 
 	if (!type.empty()) {
-		const auto mutation = getMatrix();
 		faces.erase(name);
-		for (const auto & cf : controlledFaces) {
-			// get points
-			const auto baseVertices {materializeRange(mesh.fv_range(cf.second))};
-			auto points = std::accumulate(baseVertices.begin(), baseVertices.end(), std::vector<glm::vec3> {},
-					[&mesh](auto && out, auto && v) {
-						out.push_back(mesh.point(v));
-						return std::move(out);
-					});
-			const auto vertexCount = points.size();
-			const auto centre = mesh.calc_face_centroid(cf.second);
-			if (type == "extrude") {
-				Shape::CreatedFaces newFaces;
-				// mutate points
-				std::for_each(points.begin(), points.end(), [&mutation, &centre](auto && p) {
-					p = centre + ((p - centre) % mutation);
-				});
-				// create new vertices
-				std::vector<OpenMesh::VertexHandle> vertices;
-				std::transform(points.begin(), points.end(), std::back_inserter(vertices), [&mesh](auto && p) {
-					return mesh.add_vertex(p);
-				});
-				// create new faces
-				const auto ofrange = materializeRange(mesh.ff_range(cf.second));
-				mesh.delete_face(cf.second);
-				for (size_t idx {}; idx < vertexCount; ++idx) {
-					const auto next = (idx + 1) % vertexCount;
-					const auto newFace
-							= mesh.add_face({baseVertices[idx], baseVertices[next], vertices[next], vertices[idx]});
-					auto & newFaceName = mesh.property(mesh.nameFaceProperty, newFace);
-					newFaceName = getAdjacentFaceName(ofrange, newFace);
-					newFaces.emplace(newFaceName, newFace);
-				}
-				newFaces.emplace(name, mesh.add_face(vertices));
-				if (smooth) {
-					for (const auto & [name, face] : newFaces) {
-						mesh.property(mesh.smoothFaceProperty, face) = true;
-					}
-				}
-				applyStyle(mesh, parents + this, newFaces);
-				for (const auto & [subFaceName, faceController] : faceControllers) {
-					faceController->apply(mesh, parents + this, subFaceName, newFaces);
-				}
-				faces.merge(std::move(newFaces));
-			}
-			else {
-				mesh.property(mesh.smoothFaceProperty, cf.second) = smooth;
-				applyStyle(mesh, parents + this, cf.second);
+	}
+	for (const auto & [faceName, faceHandle] : controlledFaces) {
+		if (type == "extrude") {
+			auto newFaces = extrude(mesh, faceName, faceHandle);
+			applyStyle(mesh, parents + this, newFaces);
+			for (const auto & [subFaceName, faceController] : faceControllers) {
+				faceController->apply(mesh, parents + this, subFaceName, newFaces);
 			}
+			faces.merge(std::move(newFaces));
 		}
-	}
-	else {
-		for (const auto & cf : controlledFaces) {
-			applyStyle(mesh, parents + this, cf.second);
+		else {
+			mesh.property(mesh.smoothFaceProperty, faceHandle) = smooth;
+			applyStyle(mesh, parents + this, faceHandle);
 		}
 	}
+	for (const auto & [faceName, faceHandle] : controlledFaces) {
+		mesh.property(mesh.smoothFaceProperty, faceHandle) = smooth;
+		applyStyle(mesh, parents + this, faceHandle);
+	}
+}
+
+Shape::CreatedFaces
+FaceController::extrude(ModelFactoryMesh & mesh, const std::string & faceName, OpenMesh::FaceHandle faceHandle) const
+{
+	// get points
+	const auto baseVertices {materializeRange(mesh.fv_range(faceHandle))};
+	auto points = std::accumulate(
+			baseVertices.begin(), baseVertices.end(), std::vector<glm::vec3> {}, [&mesh](auto && out, auto && v) {
+				out.push_back(mesh.point(v));
+				return std::move(out);
+			});
+	const auto vertexCount = points.size();
+	const auto centre = mesh.calc_face_centroid(faceHandle);
+	Shape::CreatedFaces newFaces;
+	// mutate points
+	std::for_each(points.begin(), points.end(), [mutation = getMatrix(), &centre](auto && p) {
+		p = centre + ((p - centre) % mutation);
+	});
+	// create new vertices
+	std::vector<OpenMesh::VertexHandle> vertices;
+	std::transform(points.begin(), points.end(), std::back_inserter(vertices), [&mesh](auto && p) {
+		return mesh.add_vertex(p);
+	});
+	// create new faces
+	const auto ofrange = materializeRange(mesh.ff_range(faceHandle));
+	mesh.delete_face(faceHandle);
+	for (size_t idx {}; idx < vertexCount; ++idx) {
+		const auto next = (idx + 1) % vertexCount;
+		const auto newFace = mesh.add_face({baseVertices[idx], baseVertices[next], vertices[next], vertices[idx]});
+		auto & newFaceName = mesh.property(mesh.nameFaceProperty, newFace);
+		newFaceName = getAdjacentFaceName(mesh, ofrange, newFace);
+		newFaces.emplace(newFaceName, newFace);
+		mesh.property(mesh.smoothFaceProperty, newFace) = smooth;
+	}
+	mesh.property(mesh.smoothFaceProperty, newFaces.emplace(faceName, mesh.add_face(vertices))->second) = smooth;
+
+	return newFaces;
 }
 
 bool
diff --git a/assetFactory/faceController.h b/assetFactory/faceController.h
index 890aafa..962a516 100644
--- a/assetFactory/faceController.h
+++ b/assetFactory/faceController.h
@@ -31,4 +31,7 @@ private:
 
 	void applySingle(ModelFactoryMesh & mesh, const Style::StyleStack & parents, const std::string & name,
 			Shape::CreatedFaces & faces) const;
+	static std::string getAdjacentFaceName(const ModelFactoryMesh & mesh,
+			const std::span<const OpenMesh::FaceHandle> ofrange, OpenMesh::FaceHandle nf);
+	Shape::CreatedFaces extrude(ModelFactoryMesh & mesh, const std::string & faceName, OpenMesh::FaceHandle) const;
 };