public ChunkData Load(int x, int y)
{
NbtFile nbt;
if (!OpenChunk(x, y, out nbt))
return null;
try {
var root = nbt.RootTag;
var level = root["Level"] as NbtCompound;
var blocks = level["Blocks"] as NbtByteArray;
//var chunkX = level["xPos"] as NbtInt;
//var chunkY = level["yPos"] as NbtInt;
var chunk = new ChunkData(x, y, blocks.Value);
chunk.BlockLight.Data = (level["BlockLight"] as NbtByteArray).Value;
chunk.SkyLight.Data = (level["SkyLight"] as NbtByteArray).Value;
chunk.MetaData.Data = (level["Data"] as NbtByteArray).Value;
chunk.Heightmap = (level["HeightMap"] as NbtByteArray).Value;
return chunk;
} catch (Exception) {
Console.WriteLine("[NBTChunkSource] Failed to load chunk {0}, {1}", x, y);
return null;
} finally {
nbt.Dispose();
}
}
public ChunkData GenerateNewChunk(int x, int y)
{
var flatChunk = new ChunkData(x, y, new byte[16 * 16 * 128]);
for (int tx = 0; tx < 16; tx++) {
for (int tz = 0; tz < 16; tz++) {
for (int ty = 0; ty < 5; ty++) {
flatChunk.SetBlock(tx, ty, tz, (int)BlockType.Grass);
}
for (int ty = 5; ty < 128; ty++) {
flatChunk.SkyLight.SetValue(tx, ty, tz, 15);
}
}
}
lighting.RecalculateLighting(flatChunk);
return flatChunk;
}
public ChunkData Load(int x, int y)
{
var rand = new Random(seed + x + y * 1024);
var chunk = new ChunkData(x, y, new byte[16 * 16 * 128]);
for (int tx = 0; tx < 16; tx++) {
for (int tz = 0; tz < 16; tz++) {
for (int ty = 0; ty < 1; ty++) {
chunk.SetBlock(tx, ty, tz, 1);
}
for (int ty = 1; ty < 3; ty++) {
if (rand.Next(10) <= 7) {
chunk.SetBlock(tx, ty, tz, 10);
} else {
chunk.SetBlock(tx, ty, tz, 1);
}
}
if (rand.Next(20) < 1) {
for (int ty = 0; ty < 128; ty++) {
chunk.SetBlock(tx, ty, tz, 8);
}
} else {
for (int ty = 64; ty < 100; ty++) {
chunk.SetBlock(tx, ty, tz, 8);
}
}
for (int ty = 100; ty < 101; ty++) {
if (rand.Next(10) <= 7)
chunk.SetBlock(tx, ty, tz, 2);
}
for (int ty = 0; ty < 128; ty++) {
var t = chunk.GetBlock(tx, ty, tz);
if (t == 0 || t == 10 || t == 8)
chunk.SkyLight.SetValue(tx, ty, tz, 15);
if (t == 10)
chunk.BlockLight.SetValue(tx, ty, tz, 15);
}
}
}
return chunk;
}
public void Save(ChunkData chunk)
{
var nbt = new NbtFile {
RootTag = new NbtCompound("", new NbtTag[] {
new NbtCompound("Level", new NbtTag[] {
new NbtByteArray("Blocks", chunk.Blocks),
new NbtByteArray("BlockLight", chunk.BlockLight.Data),
new NbtByteArray("SkyLight", chunk.SkyLight.Data),
new NbtByteArray("Data", chunk.MetaData.Data),
new NbtByteArray("HeightMap", chunk.Heightmap),
new NbtInt("xPos", chunk.X),
new NbtInt("yPos", chunk.Y),
})
})
};
var path = GetChunkPath(chunk.X, chunk.Y);
Directory.CreateDirectory(Path.GetDirectoryName(path));
nbt.SaveFile(path, true);
}
public ChunkData Get(int x, int y)
{
if (lastChunk != null && lastChunkX == x && lastChunkY == y)
return lastChunk;
ulong hashKey = BuildKey(x, y);
ChunkData chunk = cache[hashKey] as ChunkData;
if (chunk == null) {
Console.WriteLine("[ChunkCache] Loading {0}, {1}", x, y);
chunk = source.Load(x, y);
// Failed to load chunk, generate a new one
if (chunk == null)
chunk = generator.GenerateNewChunk(x, y);
cache[hashKey] = chunk;
}
lastChunkX = x;
lastChunkY = y;
lastChunk = chunk;
return chunk;
}
public UpdateFullChunkPacket(int chunkX, short chunkY, int chunkZ, int width, int height, int depth, ChunkData data)
{
ChunkX = chunkX;
ChunkY = chunkY;
ChunkZ = chunkZ;
Width = width;
Height = height;
Depth = depth;
Data = new byte[width * height * depth * 5 / 2];
data.Write(Data, 0, 0, 0, width, height, depth, 0); // TODO
}
protected void DoSkyLight(ChunkData chunk, int x, int ystart, int z)
{
var tileX = chunk.X * 16 + x;
var tileZ = chunk.Y * 16 + z;
var height = chunk.GetHeight(x, z);
// From where should we start calculating
int newHeight = Math.Max(height, ystart);
// We need to cast light through transparent blocks
while (newHeight > 0 && Block.LightAbsorbs[chunk.GetBlock(x, newHeight - 1, z)] == 0)
newHeight--;
// Nothing changed, we don't need to calculate
if (newHeight == height)
return;
chunk.SetHeight(x, z, newHeight);
/* The new height is lower than the last, that means all the tiles
* above are fully lit */
if (newHeight < height) {
for (int y = newHeight; y < height; y++) {
chunk.SkyLight.SetValue(x, y, z, 15);
}
} else if (newHeight > height) {
ScheduleUpdate(LightType.Sky, new Box(tileX, height, tileZ, tileX, newHeight, tileZ));
for (int y = height; y < newHeight; y++) {
chunk.SkyLight.SetValue(x, y, z, 0);
}
}
}
public void RecalculateLighting(ChunkData chunk)
{
for (int x = 0; x < 16; x++) {
for (int z = 0; z < 16; z++) {
chunk.SetHeight(x, z, 0);
DoSkyLight(chunk, x, 127, z);
}
}
}
public void Save(ChunkData chunk)
{
}
