private void AddChunk(int x, int z)
{
HeightInfo hi = HmWithCoords(x, z);
if (hi == null)
{
Vector2f vec = new Vector2f(x, z);
if (vec.Distance(this.v2cp) < maxDist)
{
TerrainChunkNode hmtc = CreateNewChunk(physicsWorld, this, x, z, scale, chunkSize, null);
heightmaps.Add(hi = new HeightInfo(this, vec, hmtc));
hi.chunk.Create();
ApplyTerrainMaterial(hmtc);
hi.chunk.SetLocalTranslation(new Vector3f(x * (chunkSize - 1) * scale.x, 0, z * (chunkSize - 1) * scale.z));
hi.midpoint = new Vector2f(hi.chunk.GetLocalTranslation().x - ((chunkSize - 1) * scale.x / 2), hi.chunk.GetLocalTranslation().z - (chunkSize - 1) * scale.z / 2);
Vector2f[] neighbors = GetNeighbors(hi);
hi.neighbors = neighbors;
rootNode.AddChild(hi.chunk);
hi.pageState = PageState.Loaded;
}
}
else
{
}
}
protected Vector2f[] GetNeighbors(HeightInfo origin)
{
Vector2f[] nb = new Vector2f[8];
nb[0] = new Vector2f(origin.position.x + 1, origin.position.y);
nb[1] = new Vector2f(origin.position.x - 1, origin.position.y);
nb[2] = new Vector2f(origin.position.x, origin.position.y + 1);
nb[3] = new Vector2f(origin.position.x, origin.position.y - 1);
nb[4] = new Vector2f(origin.position.x + 1, origin.position.y - 1);
nb[5] = new Vector2f(origin.position.x - 1, origin.position.y - 1);
nb[6] = new Vector2f(origin.position.x + 1, origin.position.y + 1);
nb[7] = new Vector2f(origin.position.x - 1, origin.position.y - 1);
return(nb);
}
public float GetHeight(Vector3f worldPosition)
{
Vector3f chunkSpace1 = WorldToChunkSpace(worldPosition);
HeightInfo closest = HmWithCoords((int)chunkSpace1.x, (int)chunkSpace1.z);
if (closest != null)
{
chunkSpace1.x -= closest.position.x;
chunkSpace1.z -= closest.position.y;
chunkSpace1.MultiplyStore((chunkSize - 1));
return(closest.chunk.GetHeight(chunkSpace1));
}
return(float.NaN);
}
public override void Update()
{
// if (queueTime > maxQueueTime)
// {
if (queue.Count > 0)
{
Vector2f v = queue[0];
int x = (int)v.x;
int y = (int)v.y;
AddChunk(x, y);
queue.Remove(v);
queueTime = 0f;
}
// }
// queueTime += 1f;
if (updateTime > maxUpdateTime)
{
cp.Set(Camera.Translation);
cp.SubtractStore(rootNode.GetWorldTranslation());
cp.MultiplyStore(1f / (((int)chunkSize - 1) * (scale.x)));
v2cp.Set(cp.x, cp.z);
for (int i = heightmaps.Count - 1; i > -1; i--)
{
HeightInfo hinf = heightmaps[i];
if (hinf.pageState == PageState.Loaded)
{
if (hinf.position.Distance(v2cp) > maxDist)
{
hinf.pageState = PageState.Unloaded;
}
else
{
foreach (Vector2f v2 in hinf.neighbors)
{
AddChunk((int)v2.x, (int)v2.y);
// AddToQueue(new Vector2f((int)v2.x, (int)v2.y));
}
}
hinf.UpdateChunk();
}
else if (hinf.pageState == PageState.Unloading)
{
hinf.UpdateChunk();
}
else if (hinf.pageState == PageState.Unloaded)
{
if (hinf != null)
{
hinf.UpdateChunk();
rootNode.RemoveChild(hinf.chunk);
heightmaps.Remove(hinf);
hinf.neighbors = null;
hinf.midpoint = null;
hinf.position = null;
hinf.chunk.hm.Dispose();
hinf.chunk.hm = null;
hinf.chunk = null;
hinf = null;
System.GC.Collect();
}
}
}
AddChunk((int)cp.x, (int)cp.z);
updateTime = 0f;
}
else
{
updateTime += this.Environment.TimePerFrame * 10.0f;
}
}
private void AddChunk(int x, int z)
{
HeightInfo hi = HmWithCoords(x, z);
if (hi == null)
{
Vector2f vec = new Vector2f(x, z);
if (vec.Distance(this.v2cp) < maxDist)
{
TerrainChunkNode hmtc = CreateNewChunk(physicsWorld, this, x, z, scale, chunkSize, null);
heightmaps.Add(hi = new HeightInfo(this, vec, hmtc));
hi.chunk.Create();
ApplyTerrainMaterial(hmtc);
hi.chunk.SetLocalTranslation(new Vector3f(x * (chunkSize - 1) * scale.x, 0, z * (chunkSize - 1) * scale.z));
hi.midpoint = new Vector2f(hi.chunk.GetLocalTranslation().x - ((chunkSize - 1) * scale.x / 2), hi.chunk.GetLocalTranslation().z - (chunkSize - 1) * scale.z / 2);
Vector2f[] neighbors = GetNeighbors(hi);
hi.neighbors = neighbors;
rootNode.AddChild(hi.chunk);
hi.pageState = PageState.Loaded;
}
}
else
{
}
}
protected Vector2f[] GetNeighbors(HeightInfo origin)
{
Vector2f[] nb = new Vector2f[8];
nb[0] = new Vector2f(origin.position.x + 1, origin.position.y);
nb[1] = new Vector2f(origin.position.x - 1, origin.position.y);
nb[2] = new Vector2f(origin.position.x, origin.position.y + 1);
nb[3] = new Vector2f(origin.position.x, origin.position.y - 1);
nb[4] = new Vector2f(origin.position.x + 1, origin.position.y - 1);
nb[5] = new Vector2f(origin.position.x - 1, origin.position.y - 1);
nb[6] = new Vector2f(origin.position.x + 1, origin.position.y + 1);
nb[7] = new Vector2f(origin.position.x - 1, origin.position.y - 1);
return nb;
}
