creature movement

creature script(name it CreatureScript):

private var Radians:float = Mathf.PI/180;

private var Angle:float = 0.0f;

private var MoveToPlayer:boolean = false;

var c_Speed:float = 5.0f;

var c_Target:GameObject;

//this is the Hole gameobject you will be asked to make longer down assign it in the

//editor:

var c_Hole:GameObject;

function Update() {

 var c_Velocity = new Vector3(0,0,0);

 if(MoveToPlayer)
 {

     transform.LookAt(c_Target);
     transform.eulerAngles.x = 0;//rotate only Y towards the targeted player
     transform.eulerAngles.z = 0;

     Angle = transform.eulerAngles.y;
     /* 
     get the creatures rotation around y, if you modelled the creature diffrently you
     might need to change this by doing +someangle at the end
     */
     c_Velocity.x = c_Speed * (Mathf.Cos(Angle*Radians))
     c_Velocity.y = rigidbody.velocity.y;
     c_Velocity.z = c_Speed * (Mathf.Sin(Angle*Radians))

     rigidbody.velocity = c_Velocity;

 }
 else
 {

     //if you want the creature to run back:
     if(c_Target != c_Hole)
     {

         c_Target = c_hole;

     }
 
     //same as before just now the target is the c_Hole object.
 
     transform.LookAt(c_Target);
     transform.eulerAngles.x = 0;
     transform.eulerAngles.z = 0;

     Angle = transform.eulerAngles.y;

     c_Velocity.x = c_Speed * (Mathf.Cos(Angle*Radians))
     c_Velocity.y = rigidbody.velocity.y;
     c_Velocity.z = c_Speed * (Mathf.Sin(Angle*Radians))

     rigidbody.velocity = c_Velocity;
     


 }

}

Now for the Cave/Hole script, you make an empty game object and place it at the location that you want the spotting range to be to that game object you add a sphere collider, and adjust the radius to what you would like the range to be.

in that game objects script you add this code:

var Creature:GameObject;

function OnTriggerEnter(iCollider:Collider) {

 //  this is the creaturescript above:
 var c_Script = Creature.GetComponent(CreatureScript);
 c_Script.c_Target = iCollider.gameObject;
 c_Script.MoveToPlayer = true;

}

function OnTriggerExit(iCollider:Collider) {

 var c_Script = Creature.GetComponent(CreatureScript);
 c_Script.MoveToPlayer = false;

}

if it doesn't work message me back :)