Displacement#distance: Use a naive hypot impl

`std::hypot` is much slower than a naive implementation. It has the advantage of extra precision but we don't need that at all.
diasurgical · Nov 2, 2023 · 026907e · 026907e
1 parent 17d5f05
commit 026907e
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/Source/engine/displacement.hpp b/Source/engine/displacement.hpp
@@ -120,7 +120,8 @@ struct DisplacementOf {
 
 	DVL_ALWAYS_INLINE float magnitude() const
 	{
-		return static_cast<float>(hypot(deltaX, deltaY));
+		// We do not use `std::hypot` here because it is slower and we do not need the extra precision.
+		return sqrtf(deltaX * deltaX + deltaY * deltaY);
 	}
 
 	/**