Top Down 2D Character Facing Animation Problems

So thanks to some online video tutorials I managed to make a top down 2D AI Follow script. I figured that, modification of the script The only problem is, I'm trying to modify values of the script slightly to also enable the animator to modify the values of 'LASTMOVED(X/Y)'. I'm not sure what to do to t$$anonymous$$s script exactly, but I'm pretty sure it's t$$anonymous$$s excerpt that needs to be fixed;

             if (Vector3.Distance(target.position, transform.position) <= ChaseRadius && Vector3.Distance(target.position, transform.position) > MinimumChaseRadius)
             {
                 Vector3 temp = Vector3.MoveTowards(transform.position, target.position, MoveSpeed * 0);
                 changeAnim(temp - transform.position);
             }

I know that MoveTowards() is the wrong eval for t$$anonymous$$s type of equation but I can't seem to find a better substitute without running into compiler errors and the like.. I tried doing t$$anonymous$$s with Distance() only but that only seems to accept floats so I can't use 'temp' anymore, w$$anonymous$$ch is what the vector 2 maths equations read.

And for frame of reference I'll post the full script in its entirety down below as a comment.