/// <summary>
/// Updates the target situation to approach an enemy that's in cover.
/// </summary>
public static void ApproachACovered(AIController controller, ref AISituation situation)
{
var path = new NavMeshPath();
var corners = new Vector3[16];
var resultPosition = situation.ThreatGroundPosition;
var resultDistance = 9999f;
var coverAngle = Util.AngleOfVector(situation.ThreatCoverForward);
for (int a = 0; a < 18; a++)
{
var angle = coverAngle - 180f + a * 10;
var position = situation.ThreatGroundPosition + new Vector3(Mathf.Cos(angle * Mathf.Deg2Rad), 0, Mathf.Sin(angle * Mathf.Deg2Rad)) * controller.Distances.MinEnemy;
NavMeshHit hit;
if (NavMesh.SamplePosition(position, out hit, 1.0f, NavMesh.AllAreas) &&
AIUtil.IsInSight(controller, hit.position, situation.ThreatStandingTopPosition))
{
NavMesh.CalculatePath(controller.transform.position, hit.position, NavMesh.AllAreas, path);
if (path.status == NavMeshPathStatus.PathComplete &&
!AIUtil.IsPositionTooCloseToFriends(controller, hit.position))
{
var dist = 0f;
for (int i = 1; i < path.GetCornersNonAlloc(corners); i++)
{
dist += Vector3.Distance(corners[i - 1], corners[i]);
}
if (dist < resultDistance)
{
resultDistance = dist;
resultPosition = position;
}
}
}
}
situation.TargetPosition = resultPosition;
situation.TargetCover = null;
}