diff -r a4055f67b9c7 -r cb81ecb5fb23 src/maths.h
--- a/src/maths.h	Thu Feb 13 15:25:01 2020 +0200
+++ b/src/maths.h	Wed Feb 26 02:21:07 2020 +0200
@@ -90,6 +90,8 @@
 	{
 		return arg + sum<T>(rest...);
 	}
+
+	std::optional<glm::vec3> linePlaneIntersection();
 }
 
 inline unsigned int qHash(const glm::vec3& key)