protected override void OnProcessChunk(Chunk chunk)
{
Profiler.BeginSample("ProcessChunk");
int tx = clipmap.TransformX(chunk.Pos.x / Env.CHUNK_SIZE);
int ty = clipmap.TransformY(chunk.Pos.y / Env.CHUNK_SIZE);
int tz = clipmap.TransformZ(chunk.Pos.z / Env.CHUNK_SIZE);
// Chunk is too far away. Remove it
if (!clipmap.IsInsideBounds_Transformed(tx, ty, tz))
{
chunk.RequestRemoval();
}
else
{
// Dummy collider example - create a collider for chunks directly surrounding the viewer
int xd = Helpers.Abs((viewerPos.x - chunk.Pos.x) / Env.CHUNK_SIZE);
int zd = Helpers.Abs((viewerPos.z - chunk.Pos.z) / Env.CHUNK_SIZE);
chunk.NeedsColliderGeometry = xd <= 1 && zd <= 1;
if (!useFrustumCulling)
{
ClipmapItem item = clipmap.Get_Transformed(tx, ty, tz);
// Chunk is in visibilty range. Full update with geometry generation is possible
if (item.isInVisibleRange)
{
//chunk.LOD = item.LOD;
chunk.PossiblyVisible = true;
chunk.NeedsRenderGeometry = true;
}
// Chunk is in cached range. Full update except for geometry generation
else
{
//chunk.LOD = item.LOD;
chunk.PossiblyVisible = true;
chunk.NeedsRenderGeometry = false;
}
}
}
}
public static Vector3Int[] ChunkPositions(int chunkLoadRadius)
{
chunkLoads.Clear();
for (int z = -chunkLoadRadius; z <= chunkLoadRadius; z++)
{
for (int x = -chunkLoadRadius; x <= chunkLoadRadius; x++)
{
chunkLoads.Add(new Vector3Int(x, 0, z));
}
}
// Sort 2D vectors by closeness to the center
return(chunkLoads
.Where(pos => CheckXZ(pos.x, pos.z, chunkLoadRadius))
// Smallest magnitude vectors first
.OrderBy(pos => Helpers.Abs(pos.x) + Helpers.Abs(pos.z))
// Make sure not to process e.g (-10,0) before (5,5)
.ThenBy(pos => Helpers.Abs(pos.x))
.ThenBy(pos => Helpers.Abs(pos.z))
.ToArray());
}
public static bool CheckY(int y, int dist)
{
return(Helpers.Abs(y) <= dist); // square
}