Ok hopefully this is what you mean because I couldn't find
"System AI.Pathfinding.MovingAngle" the closest I could find was "is within angle".
So I have-
System> Every Tick
System> For each (Ai)
Ai>is within angle: 45 degrees to 0
Ai>is within angle: 45 degrees to 90
Ai>is within angle: 45 degrees to 180
Ai>is within angle: 45 degrees to 270
Although the angles look right to me, I might not have it all the way down because the ai will only animate the walk right animation (45 degrees to 0).