public IList <QuadTreeTerrainFace> FindWesternNeighborsOfSmallerSize(QuadTreeTerrainFace neighbor)
{
IList <QuadTreeTerrainFace> candidates = new List <QuadTreeTerrainFace>();
IList <QuadTreeTerrainFace> neighbors = new List <QuadTreeTerrainFace>();
if (neighbor != null)
{
candidates.Add(neighbor);
}
while (candidates.Count > 0)
{
if (!candidates[0].isDivided)
{
neighbors.Add(candidates[0]);
}
else
{
candidates.Add(candidates[0].NorthEast);
candidates.Add(candidates[0].SouthEast);
}
candidates.RemoveAt(0);
}
return(neighbors);
}
public QuadTreeTerrainFace FindWesternNeighborOfGreaterOrEqualSize()
{
if (ParentFace == null)
{
return(null);
}
if (ParentFace.NorthEast == this)
{
return(ParentFace.NorthWest);
}
if (ParentFace.SouthEast == this)
{
return(ParentFace.SouthWest);
}
QuadTreeTerrainFace node = ParentFace.FindWesternNeighborOfGreaterOrEqualSize();
if (node == null || !node.isDivided)
{
return(node);
}
return(ParentFace.NorthEast == this ? node.NorthWest : node.SouthWest);
}
public IList <QuadTreeTerrainFace> FindWesternNeighbors()
{
QuadTreeTerrainFace largerNeighbor = FindWesternNeighborOfGreaterOrEqualSize();
IList <QuadTreeTerrainFace> neighbors = FindWesternNeighborsOfSmallerSize(largerNeighbor);
return(neighbors);
}
public static QuadTreeTerrainFace Create(Transform parentTransform, string name, QuadTreeTerrainFace parent = null)
{
GameObject quadTreeRoot = new GameObject(name);
quadTreeRoot.transform.parent = parentTransform;
quadTreeRoot.transform.position = Vector3.zero;
QuadTreeTerrainFace face = quadTreeRoot.AddComponent <QuadTreeTerrainFace>();
face.ParentFace = parent;
return(face);
}
private void Update()
{
// find the face that the camera is closest to
float closestDistance = float.MaxValue;
QuadTreeTerrainFace closestFace = null;
QuadTreeTerrainFace parentFace = null;
Vector3 position = Camera.main.transform.position;
foreach (QuadTreeTerrainFace face in quadTreeTerrainFaces)
{
QuadTreeTerrainFace currentClosestFace = face.FindClosestFace(position);
float faceDistance = currentClosestFace.DistanceTo(position);
if (faceDistance <= closestDistance)
{
closestFace = currentClosestFace;
parentFace = face;
closestDistance = faceDistance;
}
}
//foreach (QuadTreeTerrainFace face in quadTreeTerrainFaces) {
// face.gameObject.SetActive(face == closestFace);
//}
Debug.Log(closestDistance);
Debug.DrawLine(Camera.main.transform.position, closestFace.Mesh.bounds.ClosestPoint(Camera.main.transform.position), Color.red);
int currentLevelOfDetail = 0;
for (int i = 0; i < levelsOfDetail.Length; i++)
{
if (closestDistance < levelsOfDetail[i].startDistance)
{
currentLevelOfDetail = i;
}
}
closestFace.SetLevelOfDetail(currentLevelOfDetail);
GenerateMesh();
GenerateColors();
}
public void Initialize()
{
shapeGenerator.UpdateSettings(seed, shapeSettings);
colorGenerator.UpdateSettings(seed, colorSettings);
if (quadTreeTerrainFaces == null || quadTreeTerrainFaces.Length == 0)
{
quadTreeTerrainFaces = new QuadTreeTerrainFace[6];
}
Vector3[] directions = { Vector3.up, Vector3.down, Vector3.left, Vector3.right, Vector3.forward, Vector3.back };
for (int i = 0; i < 6; i++)
{
if (quadTreeTerrainFaces[i] == null)
{
quadTreeTerrainFaces[i] = QuadTreeTerrainFace.Create(transform, "Mesh - " + i);
}
quadTreeTerrainFaces[i].Initialize(shapeGenerator, colorSettings, directions[i], resolution);
bool renderFace = faceRenderMask == FaceRenderMask.All || (int)faceRenderMask - 1 == i;
quadTreeTerrainFaces[i].gameObject.SetActive(renderFace);
}
}
public LODNode(QuadTreeTerrainFace face, int wantedLevelOfDetail)
{
Face = face;
WantedLevelOfDetail = wantedLevelOfDetail;
}
