public void TestSpiralForEach3d()
{
var spi = SpiralIterators.Cube(new Vector3Int(1, 1, 1));
String assume = "(0, 0, 0), (1, 0, 0), (1, -1, 0), (0, -1, 0), (-1, -1, 0), (-1, 0, 0), (-1, 1, 0), (0, 1, 0), (1, 1, 0), (0, 0, -1), (1, 0, -1), (1, -1, -1), (0, -1, -1), (-1, -1, -1), (-1, 0, -1), (-1, 1, -1), (0, 1, -1), (1, 1, -1), (0, 0, 1), (1, 0, 1), (1, -1, 1), (0, -1, 1), (-1, -1, 1), (-1, 0, 1), (-1, 1, 1), (0, 1, 1), (1, 1, 1)";
IList <Vector3Int> test = new List <Vector3Int>();
foreach (Vector3Int v in spi)
{
test.Add(v);
}
string result = String.Join(", ", test);
Assert.IsTrue(assume.SequenceEqual(result), $"Lists not equal:\n\tAssumed:{assume}\n\tTest:{result}");
}
void InitVisibleChunks()
{
if (chunks == null)
{
return;
}
CreateChunkHolder();
Vector3 p = viewer.position;
Vector3 ps = p / boundsSize;
Vector3Int viewerCoord = new Vector3Int(Mathf.RoundToInt(ps.x), Mathf.RoundToInt(ps.y), Mathf.RoundToInt(ps.z));
int maxChunksInView = Mathf.CeilToInt(viewDistance / boundsSize);
float sqrViewDistance = viewDistance * viewDistance;
// Go through all existing chunks and flag for recyling if outside of max view dst
float t0 = Time.realtimeSinceStartup;
Chunk chunk;
Vector3 centre;
Vector3 viewerOffset;
Vector3 o;
float sqrDst;
for (int i = chunks.Count - 1; i >= 0; i--)
{
if (Time.realtimeSinceStartup - t0 > (1.0 / fpsBreakout))
{
return;
}
chunk = chunks[i];
centre = CentreFromCoord(chunk.coord);
viewerOffset = p - centre;
o = new Vector3(Mathf.Abs(viewerOffset.x), Mathf.Abs(viewerOffset.y), Mathf.Abs(viewerOffset.z)) - Vector3.one * boundsSize / 2;
sqrDst = new Vector3(Mathf.Max(o.x, 0), Mathf.Max(o.y, 0), Mathf.Max(o.z, 0)).sqrMagnitude;
if (sqrDst > sqrViewDistance)
{
existingChunks.Remove(chunk.coord);
recycleableChunks.Enqueue(chunk);
chunks.RemoveAt(i);
}
}
collect_countdown -= 1;
if (collect_countdown == 0)
{
GC.Collect(GC.MaxGeneration, GCCollectionMode.Optimized, blocking: false);
collect_countdown = 10;
}
Vector3Int coord;
foreach (Vector3Int spi in SpiralIterators.Cube(new Vector3Int(maxChunksInView, maxChunksInView, maxChunksInView)))
{
if (Time.realtimeSinceStartup - t0 > (1.0 / fpsBreakout))
{
return;
}
coord = spi + viewerCoord;
if (existingChunks.ContainsKey(coord))
{
if (!blockingGpu && (((!existingChunks[coord].asyncOp0?.done) ?? true) ||
((!existingChunks[coord].asyncOp1?.done) ?? true) ||
((!existingChunks[coord].asyncOp2?.done) ?? true)))
{
// wait for centermost chunks to finish
return;
}
else
{
continue;
}
}
centre = CentreFromCoord(coord);
viewerOffset = p - centre;
o = new Vector3(Mathf.Abs(viewerOffset.x), Mathf.Abs(viewerOffset.y), Mathf.Abs(viewerOffset.z)) - Vector3.one * boundsSize / 2;
sqrDst = new Vector3(Mathf.Max(o.x, 0), Mathf.Max(o.y, 0), Mathf.Max(o.z, 0)).sqrMagnitude;
// Chunk is within view distance and should be created (if it doesn't already exist)
if (sqrDst <= sqrViewDistance)
{
Bounds bounds = new Bounds(CentreFromCoord(coord), Vector3.one * boundsSize);
if (IsVisibleFrom(bounds, Camera.main))
{
if (recycleableChunks.Count > 0)
{
chunk = recycleableChunks.Dequeue();
chunk.coord = coord;
existingChunks.Add(coord, chunk);
chunks.Add(chunk);
UpdateChunkMesh(chunk, blockingGpu);
}
else
{
chunk = CreateChunk(coord);
chunk.coord = coord;
chunk.SetUp(mat, generateColliders);
existingChunks.Add(coord, chunk);
chunks.Add(chunk);
UpdateChunkMesh(chunk, blockingGpu);
}
}
}
}
}