From 352134ba9e39b8d995ca4657c821915af01c74bc Mon Sep 17 00:00:00 2001
From: mjagdis <mjagdis@eris-associates.co.uk>
Date: Fri, 1 Nov 2024 22:18:50 +0000
Subject: Convert double to ints with floor rather than truncating (#5572)

Signed-off-by: Mike Jagdis <mjagdis@eris-associates.co.uk>
---
 src/Vector3.h | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/Vector3.h b/src/Vector3.h
index 0e275e9b3..b48f35786 100644
--- a/src/Vector3.h
+++ b/src/Vector3.h
@@ -30,13 +30,20 @@ public:
 
 	// tolua_end
 	// Conversion constructors where U is not the same as T leaving the copy-constructor implicitly generated
-	template <typename U, typename = typename std::enable_if<!std::is_same<U, T>::value>::type>
-	constexpr Vector3(const Vector3<U> & a_Rhs):
+	template <typename U, std::enable_if_t<(!std::is_same<U, T>::value) && ((!std::is_integral<T>::value) || (std::is_integral<U>::value)), bool> = true>
+	constexpr Vector3<T>(const Vector3<U> & a_Rhs):
 			x(static_cast<T>(a_Rhs.x)),
 			y(static_cast<T>(a_Rhs.y)),
 			z(static_cast<T>(a_Rhs.z))
 	{
 	}
+	template <typename U, std::enable_if_t<(!std::is_same<U, T>::value) && ((std::is_integral<T>::value) && (!std::is_integral<U>::value)), bool> = true>
+	constexpr Vector3<T>(const Vector3<U> & a_Rhs):
+			x(static_cast<T>(std::floor(a_Rhs.x))),
+			y(static_cast<T>(std::floor(a_Rhs.y))),
+			z(static_cast<T>(std::floor(a_Rhs.z)))
+	{
+	}
 	// tolua_begin
 
 	inline void Set(T a_x, T a_y, T a_z)
-- 
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