private static void ProcessNode(Level level, BlockCoordinates coord, Queue <BlockCoordinates> lightBfsQueue)
{
//Log.Debug($"Setting light on block {block.Id} with LightLevel={block.LightLevel} and BlockLight={block.Blocklight}");
ChunkColumn chunk = GetChunk(level, coord);
if (chunk == null)
{
return;
}
int lightLevel = chunk.GetBlocklight(coord.X & 0x0f, coord.Y & 0xff, coord.Z & 0x0f);
Test(level, coord, coord.BlockUp(), lightBfsQueue, chunk, lightLevel);
Test(level, coord, coord.BlockDown(), lightBfsQueue, chunk, lightLevel);
Test(level, coord, coord.BlockWest(), lightBfsQueue, chunk, lightLevel);
Test(level, coord, coord.BlockEast(), lightBfsQueue, chunk, lightLevel);
Test(level, coord, coord.BlockSouth(), lightBfsQueue, chunk, lightLevel);
Test(level, coord, coord.BlockNorth(), lightBfsQueue, chunk, lightLevel);
//SetLightLevel(level, lightBfsQueue, level.GetBlockId(coord + BlockCoordinates.Down, chunk), lightLevel);
//SetLightLevel(level, lightBfsQueue, level.GetBlockId(coord + BlockCoordinates.West, chunk), lightLevel);
//SetLightLevel(level, lightBfsQueue, level.GetBlockId(coord + BlockCoordinates.East, chunk), lightLevel);
//SetLightLevel(level, lightBfsQueue, level.GetBlockId(coord + BlockCoordinates.South, chunk), lightLevel);
//SetLightLevel(level, lightBfsQueue, level.GetBlockId(coord + BlockCoordinates.North, chunk), lightLevel);
}
private void ProcessNode(IBlockAccess level, ChunkColumn chunk, BlockCoordinates coordinates, Queue <BlockCoordinates> lightBfsQueue, HashSet <BlockCoordinates> lightBfSet)
{
//if (section.IsAllAir())
byte currentSkyLight = GetSkyLight(coordinates, chunk);
int sectionIdx = coordinates.Y >> 4;
ChunkBase section = chunk.GetChunk(coordinates.Y);
byte maxSkyLight = currentSkyLight;
if (coordinates.Y < 255)
{
var up = coordinates.BlockUp();
maxSkyLight = Math.Max(maxSkyLight, SetLightLevel(level, chunk, section, sectionIdx, lightBfsQueue, lightBfSet, up, currentSkyLight, up: true));
}
if (coordinates.Y > 0)
{
var down = coordinates.BlockDown();
maxSkyLight = Math.Max(maxSkyLight, SetLightLevel(level, chunk, section, sectionIdx, lightBfsQueue, lightBfSet, down, currentSkyLight, down: true));
}
var west = coordinates.BlockWest();
maxSkyLight = Math.Max(maxSkyLight, SetLightLevel(level, chunk, section, sectionIdx, lightBfsQueue, lightBfSet, west, currentSkyLight));
var east = coordinates.BlockEast();
maxSkyLight = Math.Max(maxSkyLight, SetLightLevel(level, chunk, section, sectionIdx, lightBfsQueue, lightBfSet, east, currentSkyLight));
var south = coordinates.BlockSouth();
maxSkyLight = Math.Max(maxSkyLight, SetLightLevel(level, chunk, section, sectionIdx, lightBfsQueue, lightBfSet, south, currentSkyLight));
var north = coordinates.BlockNorth();
maxSkyLight = Math.Max(maxSkyLight, SetLightLevel(level, chunk, section, sectionIdx, lightBfsQueue, lightBfSet, north, currentSkyLight));
if (IsTransparent(coordinates, section) && currentSkyLight != 15)
{
int diffuseLevel = GetDiffuseLevel(coordinates, section);
maxSkyLight = (byte)Math.Max(currentSkyLight, maxSkyLight - diffuseLevel);
if (maxSkyLight > currentSkyLight)
{
level.SetSkyLight(coordinates, maxSkyLight);
if (!lightBfSet.Contains(coordinates))
{
lightBfsQueue.Enqueue(coordinates);
lightBfSet.Add(coordinates);
}
}
}
}
private static int GetHigestSurrounding(int x, int z, ChunkColumn chunk, IBlockAccess level)
{
int h = chunk.GetHeight(x, z);
if (h == 255)
{
return(h);
}
if (x == 0 || x == 15 || z == 0 || z == 15)
{
var coords = new BlockCoordinates(x + (chunk.x * 16), h, z + (chunk.z * 16));
//h = Math.Max(h, level.GetHeight(coords + BlockCoordinates.Up));
h = Math.Max(h, level.GetHeight(coords.BlockWest()));
h = Math.Max(h, level.GetHeight(coords.BlockEast()));
h = Math.Max(h, level.GetHeight(coords.BlockNorth()));
h = Math.Max(h, level.GetHeight(coords.BlockSouth()));
if (h > 255)
{
h = 255;
}
if (h < 0)
{
h = 0;
}
return(h);
}
//if (z < 15) h = Math.Max(h, chunk.GetHeight(x, z + 1));
//if (z > 0) h = Math.Max(h, chunk.GetHeight(x, z - 1));
//if (x < 15) h = Math.Max(h, chunk.GetHeight(x + 1, z));
//if (x < 15 && z > 0) h = Math.Max(h, chunk.GetHeight(x + 1, z - 1));
//if (x < 15 && z < 15) h = Math.Max(h, chunk.GetHeight(x + 1, z + 1));
//if (x > 0) h = Math.Max(h, chunk.GetHeight(x - 1, z));
//if (x > 0 && z > 0) h = Math.Max(h, chunk.GetHeight(x - 1, z - 1));
//if (x > 0 && z < 15) h = Math.Max(h, chunk.GetHeight(x - 1, z + 1));
h = Math.Max(h, chunk.GetHeight(x, z + 1));
h = Math.Max(h, chunk.GetHeight(x, z - 1));
h = Math.Max(h, chunk.GetHeight(x + 1, z));
//h = Math.Max(h, chunk.GetHeight(x + 1, z - 1));
//h = Math.Max(h, chunk.GetHeight(x + 1, z + 1));
h = Math.Max(h, chunk.GetHeight(x - 1, z));
//h = Math.Max(h, chunk.GetHeight(x - 1, z - 1));
//h = Math.Max(h, chunk.GetHeight(x - 1, z + 1));
return(h);
}
public bool FindWater(Level level, BlockCoordinates coord, List <BlockCoordinates> visited, int distance)
{
if (visited.Contains(coord))
{
return(false);
}
var block = level.GetBlock(coord);
if (block is Water || block is FlowingWater)
{
return(true);
}
visited.Add(coord);
if (distance >= 4)
{
return(false);
}
// check down
//if (FindWater(level, coord + BlockCoordinates.Down, visited, distance + 1)) return true;
// check west
if (FindWater(level, coord.BlockWest(), visited, distance + 1))
{
return(true);
}
// check east
if (FindWater(level, coord.BlockEast(), visited, distance + 1))
{
return(true);
}
// check south
if (FindWater(level, coord.BlockSouth(), visited, distance + 1))
{
return(true);
}
// check north
if (FindWater(level, coord.BlockNorth(), visited, distance + 1))
{
return(true);
}
// check up
//if (FindWater(level, coord + BlockCoordinates.Up, visited, distance + 1)) return true;
return(false);
}
public void ResetLight(Level level, Queue <BlockCoordinates> resetQueue, Queue <BlockCoordinates> sourceQueue, BlockCoordinates coordinates)
{
int currentLight = level.GetSkyLight(coordinates);
if (coordinates.Y < 255)
{
TestForSource(level, resetQueue, sourceQueue, coordinates.BlockUp(), currentLight);
}
if (coordinates.Y > 0)
{
TestForSource(level, resetQueue, sourceQueue, coordinates.BlockDown(), currentLight, true);
}
TestForSource(level, resetQueue, sourceQueue, coordinates.BlockWest(), currentLight);
TestForSource(level, resetQueue, sourceQueue, coordinates.BlockEast(), currentLight);
TestForSource(level, resetQueue, sourceQueue, coordinates.BlockNorth(), currentLight);
TestForSource(level, resetQueue, sourceQueue, coordinates.BlockSouth(), currentLight);
}
public void Calculate(Level level, BlockCoordinates coordinates)
{
int currentLight = level.GetSkyLight(coordinates);
var chunk = level.GetChunk(coordinates);
var height = chunk.GetRecalatedHeight(coordinates.X & 0x0f, coordinates.Z & 0x0f);
Queue <BlockCoordinates> sourceQueue = new Queue <BlockCoordinates>();
sourceQueue.Enqueue(coordinates);
if (currentLight != 0)
{
Queue <BlockCoordinates> resetQueue = new Queue <BlockCoordinates>();
HashSet <BlockCoordinates> visits = new HashSet <BlockCoordinates>();
// Reset all lights that potentially derive from this
resetQueue.Enqueue(coordinates);
Queue <BlockCoordinates> deleteQueue = new Queue <BlockCoordinates>();
while (resetQueue.Count > 0)
{
var coord = resetQueue.Dequeue();
if (visits.Contains(coord))
{
continue;
}
visits.Add(coord);
if (coord.DistanceTo(coordinates) > 16)
{
continue;
}
ResetLight(level, resetQueue, sourceQueue, coord);
if (!sourceQueue.Contains(coord))
{
deleteQueue.Enqueue(coord);
}
}
level.SetSkyLight(coordinates, 0);
foreach (var delete in deleteQueue)
{
level.SetSkyLight(delete, 0);
}
}
else
{
sourceQueue.Enqueue(coordinates);
sourceQueue.Enqueue(coordinates.BlockUp());
sourceQueue.Enqueue(coordinates.BlockDown());
sourceQueue.Enqueue(coordinates.BlockWest());
sourceQueue.Enqueue(coordinates.BlockEast());
sourceQueue.Enqueue(coordinates.BlockNorth());
sourceQueue.Enqueue(coordinates.BlockSouth());
}
chunk.SetHeight(coordinates.X & 0x0f, coordinates.Z & 0x0f, (short)height);
// Recalc
Queue <BlockCoordinates> lightBfQueue = new Queue <BlockCoordinates>(sourceQueue);
HashSet <BlockCoordinates> lightBfSet = new HashSet <BlockCoordinates>(sourceQueue);
SkyLightBlockAccess blockAccess = new SkyLightBlockAccess(level.WorldProvider);
Calculate(blockAccess, lightBfQueue, lightBfSet);
}
private bool FindLog(Level level, BlockCoordinates coord, List <BlockCoordinates> visited, int distance)
{
if (visited.Contains(coord))
{
return(false);
}
var block = level.GetBlock(coord);
if (block is Log)
{
return(true);
}
visited.Add(coord);
if (distance >= 4)
{
return(false);
}
if (!(block is Leaves2))
{
return(false);
}
var leaves = (Leaves2)block;
if (leaves.NewLeafType != NewLeafType)
{
return(false);
}
// check down
if (FindLog(level, coord.BlockDown(), visited, distance + 1))
{
return(true);
}
// check west
if (FindLog(level, coord.BlockWest(), visited, distance + 1))
{
return(true);
}
// check east
if (FindLog(level, coord.BlockEast(), visited, distance + 1))
{
return(true);
}
// check south
if (FindLog(level, coord.BlockSouth(), visited, distance + 1))
{
return(true);
}
// check north
if (FindLog(level, coord.BlockNorth(), visited, distance + 1))
{
return(true);
}
// check up
if (FindLog(level, coord.BlockUp(), visited, distance + 1))
{
return(true);
}
return(false);
}
