- fixed: TVector::Resized needs to consider that the input vector has a length of 0. In this case just performing the normal calculations results in an invalid vector.

src/vectors.h

@@ -556,18 +556,30 @@ struct TVector3
 	// Resizes this vector to be the specified length (if it is not 0)
 	TVector3 &MakeResize(double len)
 	{
-		double scale = len / Length();
+		double vlen = Length();
+		if (vlen != 0.)
+		{
+			double scale = len / vlen;
 			X = vec_t(X * scale);
 			Y = vec_t(Y * scale);
 			Z = vec_t(Z * scale);
+		}
 		return *this;
 	}
 
 	TVector3 Resized(double len)
 	{
-		double scale = len / Length();
+		double vlen = Length();
+		if (vlen != 0.)
+		{
+			double scale = len / vlen;
 			return{ vec_t(X * scale), vec_t(Y * scale), vec_t(Z * scale) };
 		}
+		else
+		{
+			return *this;
+		}
+	}
 
 	// Dot product
 	double operator | (const TVector3 &other) const