var target : Transform;
  var targetOffset = Vector3.zero;
  var distance = 4.0;
  
  var lineOfSightMask : LayerMask = 0;
  var closerRadius : float = 0.2;
  var closerSnapLag : float = 0.2;
  
  var xSpeed = 200.0;
  var ySpeed = 80.0;
  
  var yMinLimit = -20;
  var yMaxLimit = 80;
  
  private var currentDistance = 10.0;
  private var x = 0.0;
  private var y = 0.0;
  private var distanceVelocity = 0.0;
  
  function Start () {
      var angles = transform.eulerAngles;
      x = angles.y;
      y = angles.x;
          currentDistance = distance;
          
          // Make the rigid body not change rotation
             if (rigidbody)
                  rigidbody.freezeRotation = true;
  }
  
  function LateUpdate () {
      if (target) {
          x += Input.GetAxis("Mouse X") * xSpeed * 0.02;
          y -= Input.GetAxis("Mouse Y") * ySpeed * 0.02;
                   
                   y = ClampAngle(y, yMinLimit, yMaxLimit);
                          
          var rotation = Quaternion.Euler(y, x, 0);
          var targetPos = target.position + targetOffset;
          var direction = rotation * -Vector3.forward;
                  
          var targetDistance = AdjustLineOfSight(targetPos, direction);
                  currentDistance = Mathf.SmoothDamp(currentDistance, targetDistance, distanceVelocity, closerSnapLag * .3);
          
          transform.rotation = rotation;
          transform.position = targetPos + direction * currentDistance;
      }
  }
  
  function AdjustLineOfSight (target : Vector3, direction : Vector3) : float
  {
          var hit : RaycastHit;
          if (Physics.Raycast (target, direction, hit, distance, lineOfSightMask.value))
                  return hit.distance - closerRadius;
          else
                  return distance;
  }
  
  static function ClampAngle (angle : float, min : float, max : float) {
          if (angle < -360)
                  angle += 360;
          if (angle > 360)
                  angle -= 360;
          return Mathf.Clamp (angle, min, max);
  }
  
  @script AddComponentMenu("Third Person Camera/Mouse Orbit")