private bool HasNonTransparentBlock(ChunkSectionCompactStorage storage, Vector3Int position, NeighborSections neighbor)
{
var target = storage;
for (int i = 0; i < 3; i++)
{
if (position[i] < 0)
{
target = neighbor[i * 2];
position[i] += ChunkConstants.BlockEdgeWidthInSection;
}
else if (position[i] >= ChunkConstants.BlockEdgeWidthInSection)
{
target = neighbor[i * 2 + 1];
position[i] -= ChunkConstants.BlockEdgeWidthInSection;
}
}
if (target == null)
{
return(false);
}
return(!_transparentBlockIds.Contains(target.Data[position.x, position.y, position.z].Id));
}
public int CalculatePlanesCount(Vector3Int offset, ChunkSectionCompactStorage section, NeighborSections neighbor)
{
if (!HasNonTransparentBlock(section.Data[offset.x, offset.y, offset.z]))
{
return(0);
}
int count = 0;
for (int i = 0; i < 6; i++)
{
if (HasNonTransparentBlock(section, offset + _normals[i], neighbor))
{
continue;
}
count++;
}
return(count);
}
public void CreateMesh(Vector3[] vertices, Vector3[] normals, Vector2[] uvs, int[] triangles, ref int planeIndex, Vector3Int offset, ChunkSectionCompactStorage section, NeighborSections neighbor)
{
if (!HasNonTransparentBlock(section.Data[offset.x, offset.y, offset.z]))
{
return;
}
for (int i = 0; i < 6; i++)
{
if (HasNonTransparentBlock(section, offset + _normals[i], neighbor))
{
continue;
}
for (int n = planeIndex * 4, k = 0; k < 4; k++, n++)
{
var v = _positions[i, k] * 0.5f;
v += offset;
vertices[n] = v;
normals[n] = _normals[i];
uvs[n] = GetUVOffset((BlockFace)i, k);
}
for (int n = planeIndex * 6, k = 0; k < 6; k++, n++)
{
triangles[n] = planeIndex * 4 + _indices[i, k];
}
planeIndex++;
}
}
