//This method was customized by me to generate the Sparsegrid from XYZ city bounds
//while also subtracting plots occupied by buildings
public static Grid3d MakeWithCity(Bounds bounds, MeshCollider [] voids, float voxelSize)
{
var watch = Stopwatch.StartNew();
var grid = new Grid3d(voxelSize);
int count = 0;
var min = grid.IndexFromPoint(bounds.min);
var max = grid.IndexFromPoint(bounds.max);
for (int z = min.z; z <= max.z; z++)
{
for (int y = min.y; y <= max.y; y++)
{
for (int x = min.x; x <= max.x; x++)
{
var index = new Vector3Int(x, y, z);
var point = new Vector3(index.x * voxelSize, index.y * voxelSize, index.z * voxelSize);
if (!grid.inVoids(point, voids))
{
grid.AddVoxel(index);
count++;
}
}
}
}
Debug.Log($"Grid took: {watch.ElapsedMilliseconds} ms to create.\r\nGrid size: {count} voxels.");
return(grid);
}
public static Grid3d MakeGridWithBounds(IEnumerable <Bounds> bounds, float voxelSize)
{
var grid = new Grid3d(voxelSize);
foreach (var bound in bounds)
{
var min = grid.IndexFromPoint(bound.min);
var max = grid.IndexFromPoint(bound.max);
for (int z = min.z; z <= max.z; z++)
{
for (int y = min.y; y <= max.y; y++)
{
for (int x = min.x; x <= max.x; x++)
{
var index = new Vector3Int(x, y, z);
grid.AddVoxel(index);
}
}
}
}
return(grid);
}
