/// <summary>
/// Creates a pre loaded chunk from chunk data.
/// This entire function is run in a thread
/// </summary>
/// <param name="cData"></param>
/// <returns></returns>
private PreLoadedChunk GeneratePreLoadedChunk(ChunkData chunk, int lod = 1)
{
//We create a thread safe mesh for the terrain
// PreMesh terrainMesh = GenerateMarchingCubesTerrain(chunk);
ChunkData[] neighbors = ChunkRegionManager.GetNeighbors(new Vec2i(chunk.X, chunk.Z));
PreMesh terrainMesh = GenerateSmoothTerrain(chunk, neighbors, lod);
terrainMesh.RecalculateNormals();
Debug.Log("[ChunkLoader] Terrain mesh for " + chunk + " created - " + CurrentVerticies.Count + " verticies", Debug.CHUNK_LOADING);
//Create the base pre-loaded chunk
PreLoadedChunk preChunk = new PreLoadedChunk(new Vec2i(chunk.X, chunk.Z), terrainMesh, chunk);
//if we have no voxel data, return just the terrain map
if (chunk.VoxelData == null)
{
return(preChunk);
}
int maxHeight = 0;
if (neighbors != null)
{
foreach (ChunkData cd in neighbors)
{
if (cd != null && cd.VoxelData != null)
{
if (maxHeight < cd.VoxelData.TotalHeight())
{
maxHeight = cd.VoxelData.TotalHeight();
}
}
}
}
//If the chunk hasn't had its boundry points defined, we do it now
if (!chunk.VoxelData.HasBoundryVoxels)
{
for (int y = 0; y < maxHeight; y++)
{
for (int i = 0; i < World.ChunkSize; i++)
{
if (neighbors[0] != null && neighbors[0].VoxelData != null)
{
VoxelNode node = neighbors[0].VoxelData.GetVoxelNode(i, y, 0);
if (node.IsNode)
{
chunk.VoxelData.SetVoxelNode(i, y, World.ChunkSize, node);
}
}
if (neighbors[2] != null && neighbors[2].VoxelData != null)
{
VoxelNode node = neighbors[2].VoxelData.GetVoxelNode(0, y, i);
if (node.IsNode)
{
chunk.VoxelData.SetVoxelNode(World.ChunkSize, y, i, node);
}
}
}
if (neighbors[1] != null && neighbors[1].VoxelData != null)
{
VoxelNode node = neighbors[1].VoxelData.GetVoxelNode(0, y, 0);
if (node.IsNode)
{
chunk.VoxelData.SetVoxelNode(World.ChunkSize, y, World.ChunkSize, node);
}
}
}
chunk.VoxelData.HasBoundryVoxels = true;
}
//Next we generate all relevent voxel meshes
foreach (Voxel v in MiscUtils.GetValues <Voxel>())
{
if (v == Voxel.none)
{
continue;
}
//If the chunk has this type of voxel in it
if (chunk.VoxelData.VoxelTypeBounds.TryGetValue(v, out VoxelBounds vb))
{
//Clear all lists to prepair
CurrentVerticies.Clear();
CurrentTriangles.Clear();
CurrentColours.Clear();
CurrentUVs.Clear();
//Generate the voxel mesh
//MarchingCubes.Generate(chunk.VoxelData.Voxels, vb, v, World.ChunkSize+1, World.ChunkHeight+1, World.ChunkSize+1, CurrentVerticies, CurrentTriangles);
//MarchingCubes.Generate(chunk.VoxelData.Voxels, vb, v, World.ChunkSize + 1, chunk.VoxelData.TotalHeight(), World.ChunkSize + 1, CurrentVerticies, CurrentTriangles);
//MarchingCubes.Generate(chunk.VoxelData.AllVoxels, vb, v, World.ChunkSize + 1, chunk.VoxelData.TotalHeight(), World.ChunkSize + 1, CurrentVerticies, CurrentTriangles);
MarchingCubes.Generate(chunk.VoxelData.AllVoxels, vb, v, World.ChunkSize + 1, chunk.VoxelData.TotalHeight(), World.ChunkSize + 1, CurrentVerticies, CurrentTriangles);
PreMesh voxelMesh = new PreMesh();
voxelMesh.Verticies = CurrentVerticies.ToArray();
voxelMesh.Triangles = CurrentTriangles.ToArray();
voxelMesh.UV = CreateUV(voxelMesh);
voxelMesh.RecalculateNormals();
//Add it the the pre loaded chunk
preChunk.VoxelMesh.Add(v, voxelMesh);
}
}
/*
* if(chunk.WorldObjects != null)
* {
*
* lock (ObjectsToLoadLock)
* {
* Debug.Log("[ChunkLoader] Chunk " + chunk.X + "," + chunk.Z + " has " + chunk.WorldObjects.Count + " objects to load", Debug.CHUNK_LOADING);
* ObjectsToLoad.AddRange(chunk.WorldObjects);
* }
*
* }*/
return(preChunk);
}
