Fixing Enemy Spider on Unity 5

Problem:
After importing AngryBots to Unity 5 conversion will break Emeny Spider mechanics. This is solution:

Fix EnemySpider by removing active radius.
In the SpiderReturnMoveController



#pragma strict

// Public member data

public var motor : MovementMotor;



// Private memeber data

private var ai : AI;



private var character : Transform;

private var spawnPos : Vector3;

public var animationBehaviour : MonoBehaviour;

public var moving : boolean;



function Awake () {



character = motor.transform;

ai = transform.parent.GetComponentInChildren.<ai> ();

spawnPos = character.position;

}</ai>



function Update () {

motor.movementDirection = spawnPos - character.position;

motor.movementDirection.y = 0;

if (motor.movementDirection.sqrMagnitude &gt; 1)

{

motor.movementDirection = motor.movementDirection.normalized;

moving=true;

}



if (motor.movementDirection.sqrMagnitude &lt; 0.01) {

    character.position = new Vector3 (spawnPos.x, character.position.y, spawnPos.z);

    motor.GetComponent.<rigidbody>().velocity = Vector3.zero;

motor.GetComponent.<rigidbody>().angularVelocity = Vector3.zero;

motor.movementDirection = Vector3.zero;

enabled = false;

animationBehaviour.enabled = true;

}</rigidbody></rigidbody>

  if (character == motor.transform &amp;&amp; motor.movementDirection.sqrMagnitude &lt; 0.01 &amp;&amp; moving==true)

  {

  animationBehaviour.enabled = false;

  moving=false;

  }

  else

  {animationBehaviour.enabled = true;

   moving=true;

  }



}