// Loop through all chunks in the scene and check their distance,
// if not in radius, destroy them
public void RemoveChunks(Vector3Int chunkPosition, int radiusInChunks)
{
foreach (KeyValuePair <Vector3Int, Chunk> pair in chunks)
{
Vector3 chunkPos = pair.Value.chunk.transform.position;
Vector2 heading;
heading.x = chunkPosition.x + _chunkSizeHalf - chunkPos.x;
heading.y = chunkPosition.z + _chunkSizeHalf - chunkPos.z;
float distanceSquared = heading.x * heading.x + heading.y * heading.y;
float distance = Mathf.Sqrt(distanceSquared);
if (distance > radiusInChunks + 2)
{
if (!pair.Value.IsEmpty())
{
_accelerationStructure.RemoveInstance(pair.Value.chunk.GetComponent <Renderer>());
}
pair.Value.DisposeBlocks();
Destroy(pair.Value.chunk);
_toRemove.Add(pair.Key);
}
}
foreach (Vector3Int key in _toRemove)
{
chunks.Remove(key);
}
_toRemove.Clear();
}