Add explanations for errors related to Vector/Quat normalization

1 files changed, 2 insertions, 2 deletions

diff --git a/core/math/vector2.cpp b/core/math/vector2.cpp
index b306ad3d09..f4259e388b 100644
--- a/core/math/vector2.cpp
+++ b/core/math/vector2.cpp
@@ -187,7 +187,7 @@ Vector2 Vector2::move_toward(const Vector2 &p_to, const real_t p_delta) const {
 // slide returns the component of the vector along the given plane, specified by its normal vector.
 Vector2 Vector2::slide(const Vector2 &p_normal) const {
 #ifdef MATH_CHECKS
-	ERR_FAIL_COND_V(!p_normal.is_normalized(), Vector2());
+	ERR_FAIL_COND_V_MSG(!p_normal.is_normalized(), Vector2(), "The normal Vector2 must be normalized.");
 #endif
 	return *this - p_normal * this->dot(p_normal);
 }
@@ -198,7 +198,7 @@ Vector2 Vector2::bounce(const Vector2 &p_normal) const {
 
 Vector2 Vector2::reflect(const Vector2 &p_normal) const {
 #ifdef MATH_CHECKS
-	ERR_FAIL_COND_V(!p_normal.is_normalized(), Vector2());
+	ERR_FAIL_COND_V_MSG(!p_normal.is_normalized(), Vector2(), "The normal Vector2 must be normalized.");
 #endif
 	return 2.0 * p_normal * this->dot(p_normal) - *this;
 }