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Merge branch 'FEATURE/empty-chunks'
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@Zarbuz
Zarbuz committed Mar 22, 2020
2 parents e531145 + 8a18c79 commit 8ab3757
Showing 1 changed file with 63 additions and 20 deletions.
83 changes: 63 additions & 20 deletions SchematicToVoxCore/Vox/VoxWriter.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using FileToVox.Schematics;
using FileToVox.Schematics.Tools;
Expand All @@ -19,6 +20,7 @@ public class VoxWriter : VoxParser
private int _length;
private int _height;
private int _countSize;
private int _countRegionNonEmpty;
private int _totalBlockCount;

private int _countBlocks;
Expand All @@ -30,7 +32,7 @@ public class VoxWriter : VoxParser

public bool WriteModel(string absolutePath, Schematic schematic)
{
_width = _length = _height = _countSize = _totalBlockCount = 0;
_width = _length = _height = _countSize = _totalBlockCount = _countRegionNonEmpty = 0;
_schematic = schematic;
using (var writer = new BinaryWriter(File.Open(absolutePath, FileMode.Create)))
{
Expand All @@ -55,20 +57,21 @@ private int CountChildrenSize()
_height = (int)Math.Ceiling(((decimal)_schematic.Heigth / 126)) + 1;

_countSize = _width * _length * _height;
_countRegionNonEmpty = CountRegionNonEmpty();
_totalBlockCount = _schematic.Blocks.Count;

Console.WriteLine("[INFO] Total blocks: " + _totalBlockCount);

int chunkSize = 24 * _countSize; //24 = 12 bytes for header and 12 bytes of content
int chunkXYZI = (16 * _countSize) + _totalBlockCount * 4; //16 = 12 bytes for header and 4 for the voxel count + (number of voxels) * 4
int chunkSize = 24 * _countRegionNonEmpty; //24 = 12 bytes for header and 12 bytes of content
int chunkXYZI = (16 * _countRegionNonEmpty) + _totalBlockCount * 4; //16 = 12 bytes for header and 4 for the voxel count + (number of voxels) * 4
int chunknTRNMain = 40; //40 =
int chunknGRP = 24 + _countSize * 4;
int chunknTRN = 60 * _countSize;
int chunknSHP = 32 * _countSize;
int chunknGRP = 24 + _countRegionNonEmpty * 4;
int chunknTRN = 60 * _countRegionNonEmpty;
int chunknSHP = 32 * _countRegionNonEmpty;
int chunkRGBA = 1024 + 12;

GetFirstBlockForEachRegion();
for (int i = 0; i < _countSize; i++)
for (int i = 0; i < _countRegionNonEmpty; i++)
{
string pos = GetWorldPosString(i);
chunknTRN += Encoding.UTF8.GetByteCount(pos);
Expand Down Expand Up @@ -106,23 +109,63 @@ private HashSet<Block> GetBlocksInRegion(Vector3 min, Vector3 max)
return concurrent.ToHashSet();
}

private bool HasBlockInRegion(uint[,,] blocks, Vector3 min, Vector3 max)
{
for (int y = (int) min.Y; y < max.Y; y++)
{
for (int z = (int) min.Z; z < max.Z; z++)
{
for (int x = (int) min.X; x < max.X; x++)
{
if (y < _schematic.Heigth && x < _schematic.Width && z < _schematic.Length && blocks[x, y, z] != 0)
return true;
}
}
}

return false;
}

private int CountRegionNonEmpty()
{
int regionNonEmpty = 0;
uint[,,] blocks = _schematic.Blocks.To3DArray(_schematic);
for (int i = 0; i < _countSize; i++)
{
int x = i % _width;
int y = (i / _width) % _height;
int z = i / (_width * _height);
if (HasBlockInRegion(blocks, new Vector3(x * 126, y * 126, z * 126), new Vector3(x * 126 + 126, y * 126 + 126, z * 126 + 126)))
regionNonEmpty++;
}

return regionNonEmpty;
}

/// <summary>
/// Get world coordinates of the first block in each region
/// </summary>
private void GetFirstBlockForEachRegion()
{
_firstBlockInEachRegion = new BlockGlobal[_countSize];

//x = Index % XSIZE;
//y = (Index / XSIZE) % YSIZE;
//z = Index / (XSIZE * YSIZE);
for (int i = 0; i < _countSize; i++)
_firstBlockInEachRegion = new BlockGlobal[_countRegionNonEmpty];
uint[,,] blocks = _schematic.Blocks.To3DArray(_schematic);

//x = Index % XSIZE;
//y = (Index / XSIZE) % YSIZE;
//z = Index / (XSIZE * YSIZE);
int indexRegion = 0;
for (int i = 0; i < _countSize; i++)
{
int x = i % _width;
int y = (i / _width) % _height;
int z = i / (_width * _height);
_firstBlockInEachRegion[i] = new BlockGlobal(x * 126, y * 126, z * 126);
}
if (HasBlockInRegion(blocks, new Vector3(x * 126, y * 126, z * 126),
new Vector3(x * 126 + 126, y * 126 + 126, z * 126 + 126)))
{
_firstBlockInEachRegion[indexRegion] = new BlockGlobal(x * 126, y * 126, z * 126);
indexRegion++;
}
}
}

/// <summary>
Expand Down Expand Up @@ -150,7 +193,7 @@ private void WriteChunks(BinaryWriter writer)
using (var progressbar = new ProgressBar())
{
Console.WriteLine("[LOG] Started to write chunks ...");
for (int i = 0; i < _countSize; i++)
for (int i = 0; i < _countRegionNonEmpty; i++)
{
WriteSizeChunk(writer);
WriteXyziChunk(writer, i);
Expand All @@ -161,7 +204,7 @@ private void WriteChunks(BinaryWriter writer)
}
WriteMainTranformNode(writer);
WriteGroupChunk(writer);
for (int i = 0; i < _countSize; i++)
for (int i = 0; i < _countRegionNonEmpty; i++)
{
WriteTransformChunk(writer, i);
WriteShapeChunk(writer, i);
Expand Down Expand Up @@ -293,12 +336,12 @@ private void WriteShapeChunk(BinaryWriter writer, int index)
private void WriteGroupChunk(BinaryWriter writer)
{
writer.Write(Encoding.UTF8.GetBytes(nGRP));
writer.Write(16 + (4 * (_countSize - 1))); //nGRP chunk size
writer.Write(16 + (4 * (_countRegionNonEmpty - 1))); //nGRP chunk size
writer.Write(0); //Child nGRP chunk size
writer.Write(1); //ID of nGRP
writer.Write(0); //Read DICT size for attributes (none)
writer.Write(_countSize);
for (int i = 0; i < _countSize; i++)
writer.Write(_countRegionNonEmpty);
for (int i = 0; i < _countRegionNonEmpty; i++)
{
writer.Write((2 * i) + 2); //id for childrens (start at 2, increment by 2)
}
Expand Down

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