void CastRays() {
    numRays = fovAngle * quality;

    int facingAngle = fovAngle;
    var dir = actor.facingVector.ToDirection ();
    switch (dir) {
    case Direction.Up:
        break;
    case Direction.Left:
        facingAngle += 2*90;
        break;
    case Direction.Down:
        facingAngle += 2*180;
        break;
    case Direction.Right:
        facingAngle += 2*270;
        break;
    }

    currentAngle = facingAngle / -2;

    hits.Clear();

    for (int i = 0; i < numRays; i++) {
        direction = Quaternion.AngleAxis(currentAngle, -1*transform.forward) * transform.up;
        hit = new RaycastHit();

        if(Physics.Raycast(transform.position, direction, out hit, fovMaxDistance, cullingMask) == false) {
            hit.point = transform.position + (direction * fovMaxDistance);
        }

        hits.Add(hit);

        currentAngle += 1f / quality;
    }
}