private void HandleRemovalOfChunk(TerrainChunk chunk, float3 playerPosition)
{
if (chunk.hasBeenMarkedForRemoval)
{
return;
}
var isTooFarAway = math.distance(playerPosition, chunk.position) > chunkDrawDistance * 1.5 * TerrainChunk.CHUNK_SIZE;
var isEmpty = !chunk.hasSignChangeOnAnySide && !ShouldKeepEmptyChunks;
if (!isTooFarAway && !isEmpty)
{
return;
}
// Tell the neighbours this chunk no longer exists
foreach (var(sideIndex, side) in EnumUtil <CubeSide> .valuePairs)
{
if (chunk.hasNeighbourOnSide[sideIndex])
{
var neighbourKey = chunk.neighbourKeys[sideIndex];
var neighbour = chunks[neighbourKey];
var flippedSideIndex = (int)side.Flip();
chunk.ClearNeighbour(sideIndex);
neighbour.ClearNeighbour(flippedSideIndex);
}
}
if (chunk.hasSignChangeOnAnySide)
{
chunksWithSignChange--;
}
chunk.hasBeenMarkedForRemoval = true;
chunk.CompleteJobs();
chunk.meshObject.gameObject.SetActive(false);
if (chunk.hasBeenDeformed)
{
var saveData = new ChunkSaveData {
fileKey = "world",
chunkKey = chunk.key,
};
chunk.Save(saveData);
ChunkSaveData.Save(saveData);
}
chunks.TryRemove(chunk.key, out _);
chunkPool.AddItem(chunk);
}
private TerrainChunk GetOrCreateChunkByKey(ChunkKey key)
{
if (chunks.TryGetValue(key, out var existingChunk))
{
return(existingChunk);
}
var chunk = chunkPool.GetItem(PoolCallbackCreateNewChunk, PoolCallbackResetChunk);
chunk.position = (float3)key.origin * TerrainChunk.CHUNK_SIZE * voxelSize;
chunk.key = key;
chunk.meshObject.gameObject.name = $"Chunk {key.origin}";
chunk.meshObject.transform.position = chunk.position;
chunk.bounds = new Bounds {
min = chunk.position,
max = chunk.position + math.float3(chunk.size * chunk.voxelSize)
};
chunks.TryAdd(key, chunk);
var loadedData = ChunkSaveData.Load("world", key);
var dataLoadedSuccesfully = false;
if (loadedData != null)
{
dataLoadedSuccesfully = chunk.Load(loadedData);
}
if (!dataLoadedSuccesfully)
{
chunk.ScheduleGenerateDensitiesJob(noiseSettings);
}
// Fix neighbours
foreach (var side in EnumUtil <CubeSide> .valuePairs)
{
var neighbourKey = new ChunkKey {
origin = GetNeighbourChunkOrigin(chunk, side.value)
};
if (!chunks.TryGetValue(neighbourKey, out var neighbour))
{
continue;
}
chunk.SetNeighbour(neighbour, side);
}
return(chunk);
}
public static void Save(ChunkSaveData data)
{
binaryFormatter ??= new BinaryFormatter();
var filePath = GetFilePath(data.fileKey, data.chunkKey);
var directoryPath = Path.GetDirectoryName(filePath);
if (directoryPath == null)
{
throw new Exception($"Unable to get directory path from '{filePath}'");
}
Directory.CreateDirectory(directoryPath);
using var filestream = File.Open(filePath, FileMode.OpenOrCreate, FileAccess.Write);
binaryFormatter.Serialize(filestream, data);
}
