From d00fcb72da106a55d1256d853b4742257052cdb3 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Wed, 10 Mar 2021 00:24:26 +0000
Subject: Add findNodeAt to locate a node instance by position

---
 game/network/rail.cpp | 9 +++++++++
 game/network/rail.h   | 1 +
 2 files changed, 10 insertions(+)

(limited to 'game')

diff --git a/game/network/rail.cpp b/game/network/rail.cpp
index 25b3376..8ec6893 100644
--- a/game/network/rail.cpp
+++ b/game/network/rail.cpp
@@ -37,6 +37,15 @@ RailLinks::joinLinks(const LinkPtr & l) const
 	}
 }
 
+NodePtr
+RailLinks::findNodeAt(glm::vec3 pos) const
+{
+	if (const auto n = nodes.find(std::make_shared<Node>(pos)); n != nodes.end()) {
+		return *n;
+	}
+	return {};
+}
+
 std::shared_ptr<RailLink>
 RailLinks::addLinksBetween(glm::vec3 start, glm::vec3 end)
 {
diff --git a/game/network/rail.h b/game/network/rail.h
index d25964d..4460fcd 100644
--- a/game/network/rail.h
+++ b/game/network/rail.h
@@ -72,6 +72,7 @@ public:
 	}
 
 	std::shared_ptr<RailLink> addLinksBetween(glm::vec3 start, glm::vec3 end);
+	[[nodiscard]] NodePtr findNodeAt(glm::vec3) const;
 
 private:
 	using Nodes = std::set<NodePtr, PtrSorter<NodePtr>>;
-- 
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