5 files changed, 10 insertions, 8 deletions
diff --git a/game/geoData.cpp b/game/geoData.cpp
index af39ce3..4dd0c40 100644
--- a/game/geoData.cpp
+++ b/game/geoData.cpp
@@ -131,7 +131,7 @@ GeoData::RayTracer::byAxis(glm::vec2 p0, glm::vec2 p1, glm::vec2 d, glm::length_
 glm::vec2
 GeoData::RayTracer::next()
 {
-	glm::vec2 cur {p};
+	const glm::vec2 cur {p};
 
 	static constexpr const glm::vec2 m {1, -1};
 	const int axis = (error > 0) ? 1 : 0;
diff --git a/game/network/link.cpp b/game/network/link.cpp
index 19b60ab..aecc2fc 100644
--- a/game/network/link.cpp
+++ b/game/network/link.cpp
@@ -68,7 +68,7 @@ LinkCurve::intersectRay(const Ray & ray) const
 	points.reserve(segCount);
 	for (glm::vec3 swing = {arc.first, centreBase.z - e0p.z, 0.F}; segCount; swing += step, --segCount) {
 		const auto t {trans * glm::rotate(half_pi - swing.x, up) * glm::translate(glm::vec3 {radius, 0.F, swing.y})};
-		points.push_back(t * glm::vec4 {0, 0, 0, 1});
+		points.emplace_back(t * glm::vec4 {0, 0, 0, 1});
 	}
 	return ray.passesCloseToEdges(points, 1.F);
 }
diff --git a/game/network/network.cpp b/game/network/network.cpp
index dd61f9b..59ef7c8 100644
--- a/game/network/network.cpp
+++ b/game/network/network.cpp
@@ -22,11 +22,11 @@ Network::nodeAt(glm::vec3 pos)
 Network::NodeInsertion
 Network::newNodeAt(glm::vec3 pos)
 {
-	if (const auto [n, i] = candidateNodeAt(pos); i == NodeIs::NotInNetwork) {
+	if (auto [n, i] = candidateNodeAt(pos); i == NodeIs::NotInNetwork) {
 		return {*nodes.insert(std::move(n)).first, i};
 	}
 	else {
-		return {n, NodeIs::InNetwork};
+		return {std::move(n), NodeIs::InNetwork};
 	}
 }
 
diff --git a/game/network/network.h b/game/network/network.h
index e7a65b5..4b485cc 100644
--- a/game/network/network.h
+++ b/game/network/network.h
@@ -7,6 +7,7 @@
 #include <memory>
 #include <set>
 #include <sorting.hpp>
+#include <special_members.hpp>
 #include <string>
 #include <utility>
 #include <variant>
@@ -23,6 +24,7 @@ public:
 	using LinkEnd = std::pair<Link::Ptr, unsigned char>;
 	explicit Network(const std::string & textureName);
 	virtual ~Network() = default;
+	DEFAULT_MOVE_NO_COPY(Network);
 
 	[[nodiscard]] Node::Ptr findNodeAt(glm::vec3) const;
 	[[nodiscard]] Node::Ptr nodeAt(glm::vec3);
@@ -43,7 +45,7 @@ public:
 	virtual Link::CCollection addJoins(glm::vec3, glm::vec3) = 0;
 	virtual Link::CCollection addExtend(glm::vec3, glm::vec3) = 0;
 
-	virtual float findNodeDirection(Node::AnyCPtr) const = 0;
+	[[nodiscard]] virtual float findNodeDirection(Node::AnyCPtr) const = 0;
 
 protected:
 	static void joinLinks(const Link::Ptr & l, const Link::Ptr & ol);
@@ -94,7 +96,7 @@ public:
 	Link::CCollection addJoins(glm::vec3, glm::vec3) override;
 	Link::CCollection addExtend(glm::vec3, glm::vec3) override;
 
-	float findNodeDirection(Node::AnyCPtr) const override;
+	[[nodiscard]] float findNodeDirection(Node::AnyCPtr) const override;
 
 	void render(const SceneShader &) const override;
 
diff --git a/game/network/rail.cpp b/game/network/rail.cpp
index 2f09d88..e7006cf 100644
--- a/game/network/rail.cpp
+++ b/game/network/rail.cpp
@@ -40,7 +40,7 @@ RailLinks::addLinksBetween(glm::vec3 start, glm::vec3 end)
 		std::swap(start, end);
 	}
 	// Find start link/end - opposite entry dir to existing link; so pi +...
-	float dir = pi + findNodeDirection(node1ins.first);
+	const float dir = pi + findNodeDirection(node1ins.first);
 	if (dir == vector_yaw(end - start)) {
 		return addLink<RailLinkStraight>(start, end);
 	}
@@ -50,7 +50,7 @@ RailLinks::addLinksBetween(glm::vec3 start, glm::vec3 end)
 			const auto sm = glm::distance(flatStart, mid), em = glm::distance(flatEnd, mid);
 			return start.z + ((end.z - start.z) * (sm / (sm + em)));
 		};
-		float dir2 = pi + findNodeDirection(node2ins.first);
+		const float dir2 = pi + findNodeDirection(node2ins.first);
 		if (const auto radii = find_arcs_radius(flatStart, dir, flatEnd, dir2); radii.first < radii.second) {
 			const auto radius {radii.first};
 			const auto c1 = flatStart + sincosf(dir + half_pi) * radius;