From 61fa037d0a50b62807ca88dc09e4c85dff7d3ddf Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Mon, 12 May 2025 04:00:51 +0100
Subject: Add network helpers for easily adding a chain of links

---
 game/network/network.cpp | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'game/network/network.cpp')

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
@@ -98,6 +98,14 @@ Network::routeFromTo(const Link::End & end, const Node::Ptr & dest)
 	return RouteWalker().findRouteTo(end, 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)
 {
@@ -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;
+}
-- 
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