public void PlaceGameObjects(GameObject container = null)
{
Debug.LogFormat("PlaceGameObjects - found {0} places", foundPlaces.Count);
foreach (Place place in foundPlaces)
{
PlacementCriteria placmentCriteria = this.placmentCriteria.Where(pc => pc.tag.Equals(place.tag)).First();
GameObject go = Instantiate(placmentCriteria.prefab);
go.transform.position = place.position;
//go.transform.up = place.normal;
if (container != null)
{
go.transform.parent = container.transform;
}
}
}
void FindPlacesOnPlane(PlacementCriteria placementCriteria, GameObject plane, List <Place> places)
{
var boundingRadius = Mathf.Max(placementCriteria.Bounds.size.x, placementCriteria.Bounds.size.y, placementCriteria.Bounds.size.z) * 0.5f;
var allPositions = GetSurfacePositionsForPlane(plane, placementCriteria.Bounds, 1.5f);
var filteredPositions = FilterOutInvalidSurfacePositions(allPositions, -plane.transform.forward * boundingRadius, boundingRadius);
var filteredAndSortedPositions = SortSurfacePosition(placementCriteria, filteredPositions);
for (int i = 0; i < Mathf.Min(placementCriteria.count, filteredAndSortedPositions.Count); i++)
{
places.Add(new Place
{
tag = placementCriteria.tag,
position = filteredAndSortedPositions[i],
normal = -plane.transform.forward
});
}
}
List <Vector3> SortSurfacePosition(PlacementCriteria pc, List <Vector3> surfacePositions)
{
var costs = surfacePositions.Select((position, index) =>
{
Vector3 cameraPos = new Vector3(Camera.main.transform.position.x, 0, Camera.main.transform.position.z);
Vector3 pos = new Vector3(position.x, 0, position.z);
Vector3 direction = (pos - cameraPos);
float distance = direction.magnitude;
direction.Normalize();
float dot = Vector3.Dot(Camera.main.transform.forward, direction);
float dotCost = Mathf.Pow(1f - dot, 2f);
float minDistanceCost = 0;
if (distance < pc.minDistance)
{
minDistanceCost = pc.minDistance / distance;
}
float maxDistanceCost = 0f;
if (distance > pc.maxDistance)
{
maxDistanceCost = distance / pc.maxDistance;
}
float totalCost = dotCost + minDistanceCost + maxDistanceCost;
return(new { index = index, cost = totalCost });
}).ToList();
costs.Sort((ca, cb) =>
{
return(ca.cost.CompareTo(cb.cost));
});
return(costs.Select(cost =>
{
return surfacePositions[cost.index];
}).ToList());
}
