private void Spread(ConcurrentQueue <LightingItem> queue, ChunkColumn chunk, BlockFace face, int x, int y, int z, int lightLevel)
{
if (lightLevel <= 0)
{
return;
}
var chunkCoordinates = new ChunkCoordinates(x >> 4, z >> 4);
if (chunkCoordinates.X != chunk.X || chunkCoordinates.Z != chunk.Z)
{
Enqueue(face, x, y, z, lightLevel);
return;
}
//if (!ChunkManager.TryGetChunk(chunkCoordinates, out var chunk))
//{
// Enqueue(face, x, y, z, lightLevel);
// return;
//}
//var self = World.GetBlockState(x, y, z).Block;
var self = chunk.GetBlockState(x & 0xf, y & 0xff, z & 0xf).Block;
if (self.BlockMaterial.BlocksLight)
{
return;
}
lightLevel -= self.LightOpacity;
if (lightLevel < 0)
{
lightLevel = 0;
}
if (lightLevel < chunk.GetSkylight(x & 0xf, y & 0xff, z & 0xf))
{
return;
}
chunk.SetSkyLight(x & 0xf, y & 0xff, z & 0xf, (byte)lightLevel);
if (lightLevel <= 0)
{
return;
}
//lightLevel--;
if (face != BlockFace.East)
{
Enqueue(queue, BlockFace.West, x - 1, y, z, lightLevel);
}
if (face != BlockFace.West)
{
Enqueue(queue, BlockFace.East, x + 1, y, z, lightLevel);
}
if (face != BlockFace.South)
{
Enqueue(queue,
BlockFace.North, x, y, z - 1, lightLevel);
}
if (face != BlockFace.North)
{
Enqueue(queue, BlockFace.South, x, y, z + 1, lightLevel);
}
if (face != BlockFace.Up && y > 0)
{
Enqueue(queue, BlockFace.Down, x, y - 1, z, lightLevel);
}
if (face != BlockFace.Down && y < 256)
{
Enqueue(queue, BlockFace.Up, x, y + 1, z, lightLevel);
}
}