From 1bcce010b5b11b485ba80df58c984277100dc99e Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Sun, 11 May 2025 00:12:42 +0100
Subject: Fix conditional render of rail links

Tests for vertices, not links in network. Fixes case where links are
present but not in network, e.g. currently being built.
---
 game/network/network.impl.h | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'game/network/network.impl.h')

diff --git a/game/network/network.impl.h b/game/network/network.impl.h
index 7f7dfb3..04c5d7c 100644
--- a/game/network/network.impl.h
+++ b/game/network/network.impl.h
@@ -160,6 +160,13 @@ NetworkOf<T, Links...>::create(const GenCurveDef & def)
 			*this, candidateNodeAt(std::get<0>(def)).first, candidateNodeAt(std::get<1>(def)).first, std::get<2>(def));
 }
 
+template<typename T, typename... Links>
+bool
+NetworkOf<T, Links...>::anyLinks() const
+{
+	return !(static_cast<const NetworkLinkHolder<Links> *>(this)->vertices.empty() && ...);
+}
+
 template<typename T, typename... Links>
 void
 NetworkOf<T, Links...>::add(GeoData * geoData, const Link::Ptr & link)
-- 
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