public GameObject T;

// Cached variables

CharacterController _controller;

Transform _transform;

//Movement variables

public float Speed = 5f;

float gravity = 100f;

Vector3 moveDirection;

Vector3 _target;

float maxRotSpeed = 200.0f;

float minTime = 0.1f;

float _velocity;

bool change;

float range;

void Start()

{

_controller = GetComponent<CharacterController>();

_transform = GetComponent<Transform>();

range = 2f;

_target = GetTarget();

Instantiate(T, _target, Quaternion.identity);

}

void Update()

{

// if (change)

// {

// _target = GetTarget();

// Instantiate(T, _target, Quaternion.identity);

// Debug.Log ("target changed");

// change = false;

// }

if (Vector3.Distance(_transform.position, _target) > range)

{

Move();

GetComponent<Animation>().CrossFade("walk");

// Debug.Log ("walking toward target");

}

else

{

_target = GetTarget();

Instantiate(T, _target, Quaternion.identity);

// InvokeRepeating("NewTarget", 0.01f, 5.0f);

}

}

void Move()

{

// Movement

moveDirection = _transform.forward;

moveDirection *= Speed;

moveDirection.y -= gravity * Time.deltaTime;

_controller.Move(moveDirection * Time.deltaTime);

//Rotation

var newRotation = Quaternion.LookRotation(_target - _transform.position).eulerAngles;

var angles = _transform.rotation.eulerAngles;

_transform.rotation = Quaternion.Euler(angles.x,

Mathf.SmoothDampAngle(angles.y, newRotation.y, ref _velocity, minTime, maxRotSpeed),

angles.z);

}

Vector3 GetTarget()

{

return new Vector3(Random.Range(_transform.position.x - 20, _transform.position.x + 20), Random.Range(_transform.position.y - 1, _transform.position.y + 1), Random.Range(_transform.position.z - 20, _transform.position.z + 20));

}

// void NewTarget()

// {

// int choice = Random.Range(0, 2);

// switch (choice)

// {

// case 2: //new target

// change = true;

// break;

// case 1: //still walking toward old target

// change = false;

// break;

// case 0: //waiting, staying at same position

// _target = transform.position;

// break;

// }

// }