How could I make the AI follow me after chase = true?we

Hey,

I got this script, it works fine and will fit my game but I need it to follow my character after chase is true.

 var player : Transform; // the Object the player is controlling
 var spawnOrgin : Vector3; // this will be the bottom right corner of a square we will use as the spawn area
 var maximum : Vector3; // max distance in the x, y, and z direction the enemy can spawn
 var spawnRate : float; // how often the enemy will respawn
 var distanceToPlayer : float; // how close the enemy has to be to the player to play music
 var chasing : boolean = false;
      
 private var nearPlayer : boolean = false; // use this to stop the teleporting if near the player
 private var nextTeleport : float = 0.0f; // will keep track of when we to teleport next
      
     function Start ()
     {
     nextTeleport = spawnRate;
     }
      
     function Update ()
     {
     if (!nearPlayer) // only teleport if we are not close to the player
     {
     if (Time.time > nextTeleport) // only teleport if enough time has passed
     {
     transform.position = Vector3( Random.Range(spawnOrgin.x, maximum.x), Random.Range(spawnOrgin.y, maximum.y), Random.Range(spawnOrgin.z, maximum.z) ); // teleport
     nextTeleport += spawnRate; // update the next time to teleport
     }
     }
     if (Vector3.Distance(transform.position, player.position) <= distanceToPlayer)
     {
     if (audio && audio.clip && !audio.isPlaying) // play the audio if it isn't playing
     audio.Play();
     nearPlayer = true;
     chasing = true;
     }
     else
     {
     if (audio)
     audio.Stop();
     nearPlayer = false;
     }
     if (chasing)
     {
         //this is where he would start the chase
     }
     }