✓ Accepted answer
Simple: There is no alternative unless you want to try reinventing the wheel (which is stupid).
What purpose do you seek for using anything but Magnitude to find distance? Magnitude is really the easiest option for doing it. Obviously you can do a lot of math to reinvent Magnitude, but that is completely unnecessary.
If you're talking about a player specifically, you can use DistanceFromCharacter(), but that is still exactly like Magnitude. Just use Magnitude and don't overthink about distance calculation.
Or, if you seek a loop alternative, RunService works, but it's client-sided.
1 comment
I couldn't think of any alternatives but using RunService to replace the loop.