private IntVector3 GetFleeLocation()
{
// get all available tiles within a radius
Vector3 worldPointOfInterest = LevelDataManager.Instance.ArrayToWorldSpace(_unit.Navigator.PointOfInterest.x, _unit.Navigator.PointOfInterest.y);
Vector3 direction = (_unit.MoveController.Body.position - worldPointOfInterest).normalized; // get opposite direction
Vector3 worldTargetFleePoint = _unit.MoveController.Body.position + direction * _fleeRadius;
IntVector3 targetFleePoint = LevelDataManager.Instance.WorldToArraySpace(worldTargetFleePoint);
List <IntVector3> availableTiles = MapService.GetTraversableTiles(
_fleeRadius, targetFleePoint, _unit, _unit.UnitData.TraversableThreshold, 1);
if (availableTiles.Count == 0)
{
return(_unit.MoveController.MapPosition);
}
// iterate thru all the tiles and pick out the best one
IntVector3 mapPosition = _unit.MoveController.MapPosition;
Vector2 currentPosition = _unit.MoveController.Body.position;
IntVector3 bestTile = availableTiles[0];
int mapDistance = MapService.DistanceFromStart(mapPosition.x, mapPosition.y, bestTile.x, bestTile.y);
Unit currentThreat = _unit.TargetManager.CurrentTarget;
for (int i = 0; i < availableTiles.Count; i++)
{
// check if initial threat is within sight
Vector2 targetTilePosition = LevelDataManager.Instance.ArrayToWorldSpace(availableTiles[i].x, availableTiles[i].y);
float distanceFromThreat = Vector2.Distance(currentThreat.MoveController.Body.position, targetTilePosition);
RaycastHit2D hit = Physics2D.Raycast(targetTilePosition, currentThreat.MoveController.Body.position, distanceFromThreat, _unit.TargetManager.VisionLayers);
if (hit.transform != null)
{
// the threat is in sight, skip this tile
if (hit.transform == currentThreat.MoveController.Body)
{
continue;
}
}
// compare distance
int newMapDistance = MapService.DistanceFromStart(mapPosition.x, mapPosition.y, availableTiles[i].x, availableTiles[i].y);
if (newMapDistance > mapDistance)
{
bestTile = availableTiles[i];
mapDistance = newMapDistance;
}
}
return(bestTile);
}
private int GetNearestPatrolPointIndex()
{
// get current position
int startX = _unit.MoveController.MapPosition.x;
int startY = _unit.MoveController.MapPosition.y;
int closestPointIndex = 0;
IntVector3 patrolPointMapPosition = LevelDataManager.Instance.WorldToArraySpace(_patrolLoop.PatrolPoints[closestPointIndex].position);
int closestDistance = MapService.DistanceFromStart(startX, startY, patrolPointMapPosition.x, patrolPointMapPosition.y);
// loop through positions in patrol points
for (int i = 1; i < _patrolLoop.PatrolPoints.Length; i++)
{
patrolPointMapPosition = LevelDataManager.Instance.WorldToArraySpace(_patrolLoop.PatrolPoints[closestPointIndex].position);
int distance = MapService.DistanceFromStart(startX, startY, patrolPointMapPosition.x, patrolPointMapPosition.y);
if (distance < closestDistance)
{
closestPointIndex = i;
}
}
return(closestPointIndex);
}
