public void CreateChunk(Chunk chunk)
{
var cornerPos = (BlockPos)chunk.Pos;
for (int x = 0; x < GeometryConstants.ChunkSize; ++x)
{
long wx = cornerPos.X + x;
for (int z = 0; z < GeometryConstants.ChunkSize; ++z)
{
long wz = cornerPos.Z + z;
var dirtHeight = (long)(_dirtNoise[wx, wz] * 2.5 - 8);
var mountainHeight = (long)(_mountainNoise[wx, wz] * 8 + _mountainDetailNoise[wx, wz] * 3 - 10);
for (int y = 0; y < GeometryConstants.ChunkSize; ++y)
{
long wy = cornerPos.Y + y;
if (wy < mountainHeight)
{
chunk[x, y, z] = 2; // Rock
}
else if (wy < dirtHeight)
{
chunk[x, y, z] = 1; // Dirt
}
}
}
}
chunk.IsCreated = true;
}
public Chunk GetChunk(ChunkPos chunkPos)
{
lock (_mutex)
{
Chunk chunk;
if (!_chunkMap.TryGetValue(chunkPos, out chunk))
{
chunk = new Chunk(this, chunkPos);
_chunkMap[chunkPos] = chunk;
Task.Run(() => LoadOrGenerate(chunk));
}
return chunk;
}
}
private void RenderChunk(TriangleBuffer buffer, Chunk chunk)
{
var offset = chunk.Pos - new BlockPos(0, 0, 0);
float xOffset = offset.X + 0.5f;
float yOffset = offset.Y + 0.5f;
float zOffset = offset.Z + 0.5f;
for (int y = GeometryConstants.ChunkSize - 1; y >= 0; --y)
{
for (int x = 0; x < GeometryConstants.ChunkSize; ++x)
{
for (int z = 0; z < GeometryConstants.ChunkSize; ++z)
{
ushort material = chunk[x, y, z];
if (material != 0)
{
var textureEntry = _textureAtlas.GetTextureEntry(material);
float x1 = x + xOffset, y1 = y + yOffset, z1 = z + zOffset;
if (x == 0 || chunk[x - 1, y, z] == 0) DrawBlockLeft(buffer, textureEntry, x1, y1, z1, 0);
if (x == GeometryConstants.ChunkSize - 1 || chunk[x + 1, y, z] == 0) DrawBlockRight(buffer, textureEntry, x1, y1, z1, 0);
if (y == 0 || chunk[x, y - 1, z] == 0) DrawBlockBottom(buffer, textureEntry, x1, y1, z1, 0);
if (y == GeometryConstants.ChunkSize - 1 || chunk[x, y + 1, z] == 0) DrawBlockTop(buffer, textureEntry, x1, y1, z1, 0);
if (z == 0 || chunk[x, y, z - 1] == 0) DrawBlockBack(buffer, textureEntry, x1, y1, z1, 0);
if (z == GeometryConstants.ChunkSize - 1 || chunk[x, y, z + 1] == 0) DrawBlockFront(buffer, textureEntry, x1, y1, z1, 0);
}
}
}
}
}
private async void LoadOrGenerate(Chunk chunk)
{
var savedValueTask = Universe?.SaveFile?.ReadAsync(StorageKey.Get("ChunkData", chunk.Pos));
StorageValue savedValue = savedValueTask == null ? null : await savedValueTask;
if (savedValue != null)
{
var chunkData = savedValue.Deserialize<ChunkData>();
if (chunkData != null)
{
chunk.PasteChunkData(savedValue.Deserialize<ChunkData>());
}
}
else if (Generator != null)
{
Generator.CreateChunk(chunk);
}
}
