[Closed] HELP!! Matching Plane.Length to CurveLength

I feel silly asking such a simple question but I’ve been trying to figure this out for 3 days now and can’t seem to find this anywhere. I know there are tons of references but since I am new to this I don’t know what terminology to look up. I must admit, I am extremely new to MAXScript. Though I have a mild background in coding (barely, lol), I can’t seem to figure out how to link one parameter (if that’s the proper terminology here) to another. Here’s what I’m trying to do:

I want to take a spline, and make the length of a plane always equal to that spline’s length. I am rigging the treads of a tank, and I have point helpers fixed to the plane’s surface via Attachment Constraints, and I have each tank tread linked to its corresponding helper through parent:child linking. Where I am having problems is the only way I can figure out how to always keep the plane’s length equal to the spline’s length is via MAXScript, though I am sure there are better ways out there to do this (if anyone knows any, any help is appreciated!) Here’s what I have so far:

while $Plane.Length != curveLength($Spline) do
(
$Plane.Length = curveLength($Spline)
)

This works great, but I don’t know how to loop this continuously. The while loops runs until the plane length is exactly equal to the spline length, but then it stops (as it’s supposed to). I just have no idea of how to continuously make it update during rigging/animating to constantly keep plane length equal to the spline’s length. (Kind of like rigging something via ‘Wire Paramenters’) If anyone knows how it would be forever appreciated!