From a007ffeed3cfa6af2cbe1053c330ad11927d58de Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Wed, 18 Dec 2024 17:24:02 +0000
Subject: Add sanity checking logic to GeoData

---
 game/geoData.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'game/geoData.cpp')

diff --git a/game/geoData.cpp b/game/geoData.cpp
index 8e662b3..eef5dc7 100644
--- a/game/geoData.cpp
+++ b/game/geoData.cpp
@@ -601,3 +601,13 @@ GeoData::setHeights(const std::span<const GlobalPosition3D> triangleStrip, const
 
 	updateAllVertexNormals(newOrChangedVerts);
 }
+
+void
+GeoData::sanityCheck() const
+{
+	if (!std::ranges::all_of(faces(), [this](const auto face) {
+			return triangle<2>(face).isUp();
+		})) {
+		throw std::logic_error("Upside down faces detected");
+	}
+}
-- 
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