Add network helpers for easily adding a chain of links

2 files changed, 28 insertions, 0 deletions

diff --git a/game/network/network.cpp b/game/network/network.cpp
index 1c3a122..a9c9372 100644
--- a/game/network/network.cpp
+++ b/game/network/network.cpp
@@ -99,6 +99,14 @@ Network::routeFromTo(const Link::End & end, const Node::Ptr & dest)
 }
 
 void
+Network::add(GeoData * geoData, const std::span<const Link::Ptr> links)
+{
+	for (const auto & link : links) {
+		add(geoData, link);
+	}
+}
+
+void
 Network::terrainSplitAt(GenLinkDef & previous, GenLinkDef & next, GlobalPosition3D pos)
 {
 	std::visit(
@@ -249,3 +257,20 @@ Network::create(const GeoData * geoData, const CreationDefinition & def)
 	});
 	return links;
 }
+
+Link::Collection
+Network::createChain(const GeoData * geoData, const std::span<const GlobalPosition3D> positions)
+{
+	Link::Collection out;
+	std::ranges::for_each(positions | std::views::pairwise,
+			[&out, dir = std::optional<Angle> {}, geoData, this](const auto & current) mutable {
+				const auto & [previous, next] = current;
+				CreationDefinition def = {
+						.fromEnd = {.position = previous, .direction = dir},
+						.toEnd = {.position = next, .direction = {}},
+				};
+				out += create(geoData, def);
+				dir = out.back()->endAt(next)->dir;
+			});
+	return out;
+}
diff --git a/game/network/network.h b/game/network/network.h
index 65db016..adaae5f 100644
--- a/game/network/network.h
+++ b/game/network/network.h
@@ -65,7 +65,9 @@ public:
 	[[nodiscard]] virtual float findNodeDirection(Node::AnyCPtr) const = 0;
 
 	[[nodiscard]] Link::Collection create(const GeoData *, const CreationDefinition &);
+	[[nodiscard]] Link::Collection createChain(const GeoData *, std::span<const GlobalPosition3D>);
 	virtual void add(GeoData *, const Link::Ptr &) = 0;
+	void add(GeoData *, std::span<const Link::Ptr>);
 
 	[[nodiscard]] virtual const Surface * getBaseSurface() const = 0;
 	[[nodiscard]] virtual RelativeDistance getBaseWidth() const = 0;
@@ -138,6 +140,7 @@ public:
 	using Network::create;
 	[[nodiscard]] Link::Ptr create(const GenStraightDef &) override;
 	[[nodiscard]] Link::Ptr create(const GenCurveDef &) override;
+	using Network::add;
 	void add(GeoData *, const Link::Ptr &) override;
 
 protected: