private void Update()
{
if (killswitch)
{
return;
}
if (activeChunks.Count > 64)
{
killswitch = true;
Debug.LogError("Unexpectedly high amount of active rain chunks. Disabling rain.");
foreach (var activeChunk in activeChunks)
{
pool.Release(activeChunk.Value);
}
activeChunks.Clear();
return;
}
if (trackedEntities.Count == 0)
{
return;
}
if (Mathf.Approximately(currentIntensity, 0f))
{
foreach (var activeChunk in activeChunks)
{
pool.Release(activeChunk.Value);
}
activeChunks.Clear();
return;
}
var chunkBoundaryOffsetVector = new Vector2(cullDistance, cullDistance);
var sqrDist = cullDistance * cullDistance;
foreach (var entity in trackedEntities)
{
var worldPos3d = entity.localPosition;
var worldPos = new Vector2(worldPos3d.x, worldPos3d.z);
var min = GetChunkPosition(worldPos - chunkBoundaryOffsetVector);
var max = GetChunkPosition(worldPos + chunkBoundaryOffsetVector);
for (var x = min.x; x <= max.x; ++x)
{
for (var y = min.y; y <= max.y; ++y)
{
var chunkCenter = new Vector2(x + 0.5f, y + 0.5f) * chunkSize;
if ((chunkCenter - worldPos).sqrMagnitude > sqrDist)
{
continue;
}
toSpawn.Add(new Vector2Int(x, y));
}
}
}
foreach (var activeChunk in activeChunks)
{
if (toSpawn.Contains(activeChunk.Key))
{
toSpawn.Remove(activeChunk.Key);
}
else
{
toRelease.Add(activeChunk.Key);
}
}
foreach (var key in toRelease)
{
reusable.Push(activeChunks[key]);
activeChunks.Remove(key);
}
foreach (var key in toSpawn)
{
var effect = reusable.Count > 0 ? reusable.Pop() : pool.Get();
FitToChunk(effect, key);
activeChunks[key] = effect;
}
while (reusable.Count > 0)
{
pool.Release(reusable.Pop());
}
toSpawn.Clear();
toRelease.Clear();
}