IEnumerator AICoroutine()
{
yield return(new WaitForSeconds(1));
while (true)
{
if (VisibilityHelper.CheckVisibility(transform, _playerGameObject.transform, MaxVisibleDistance, _layerMask))
{
// player visible
if (_toTargetObjectRotation != null && !_toTargetObjectRotation.enabled)
{
// point to player
_toTargetObjectRotation.Target = _playerGameObject.transform;
_toTargetObjectRotation.enabled = true;
}
if (_toMoveDirectionRotation != null && _toMoveDirectionRotation.enabled)
{
_toMoveDirectionRotation.enabled = false;
}
// shoot if able
if (!_isStaggered && Stats.HasEnough(StatsEnum.Bullets, 1) && !_gunCooldown)
{
var q = Quaternion.LookRotation(Vector3.forward,
_playerGameObject.transform.position - transform.position);
FireBullet(q.eulerAngles.z);
Stats.AddAmount(StatsEnum.Bullets, -1);
StartCoroutine(WeaponCooldown(2));
yield return(null);
}
else
{
// go to proper distance
var distance = (transform.position - _playerGameObject.transform.position).magnitude;
if (distance < TooCloseDistance && !_isAttacking)
{
// move back when close
var vector = -_playerGameObject.transform.position + transform.position;
MoveBackWards(vector);
}
else if (distance <= AttackDistance && !_isAttacking)
{
// attack when in attack range
Attack();
}
else
{
// move to target
var vector = _playerGameObject.transform.position - transform.position;
Move(vector);
}
yield return(null);
}
}
else
{
if (_toTargetObjectRotation != null && _toTargetObjectRotation.enabled)
{
_toTargetObjectRotation.enabled = false;
}
if (_toMoveDirectionRotation != null && !_toMoveDirectionRotation.enabled)
{
_toMoveDirectionRotation.enabled = true;
}
// wander randomly
float angle = Random.Range(0, 16) * (float)Math.PI * 2f / 16;
var vector = Math2.AngleRadToVector(angle);
Move(vector);
yield return(new WaitForSeconds(Random.Range(1, 3)));
}
}
}