void UpdateEvade()
{
var leaderPos = (Vector2)leader.transform.position;
var leaderDir = SteeringBehaviour.GetDirection(leader);
var evadeTarget = leaderPos + leaderDir * forwardDistance;
var position = (Vector2)transform.position;
evade.enabled = (position - evadeTarget).magnitude < evadeRadius;
evade.SetTarget(evadeTarget);
}