public static IEnumerable <IntVector3> IteratorXZAtY(IntBounds3 bounds, int y)
{
foreach (var pos in bounds.IteratorXZ)
{
yield return(pos.ToIntVector3XZWithY(y));
}
}
public static IEnumerable <IntVector3> IteratorXZWithNeighborsAtY(IntBounds3 bounds, int y)
{
foreach (var pos in bounds.IteratorXZ)
{
var p = pos.ToIntVector3XZWithY(y);
yield return(p);
foreach (var relEscape in CubeNeighbors6.EscapeFacesXZ(bounds.RelativeOrigin(p), bounds.size))
{
yield return(p + relEscape);
}
}
}
public static IntVector3[] ProximityOrderedIntVectors(IntVector3 cubeSize)
{
var bounds = IntBounds3.FromCenterHalfSize(IntVector3.zero, cubeSize / 2);
var iter = ProximityOrderedIntVectors(cubeSize.MaxComponent);
var result = new List <IntVector3>(cubeSize.Area);
foreach (var v in iter)
{
if (bounds.Contains(v))
{
result.Add(v);
}
}
return(result.ToArray());
}
public static IEnumerable <IntVector3> IteratorXZYWithNeighbors(IntBounds3 bounds)
{
foreach (var pos in bounds.IteratorXZYTopDown)
{
yield return(pos);
foreach (var nei in CubeNeighbors6.NeighborsOf(pos))
{
if (!bounds.Contains(nei))
{
yield return(nei);
}
}
}
}
public static IntVector3[] ProximityOrderedIntVectors(int cubeSize)
{
IntBounds3 b = new IntBounds3
{
start = IntVector3.zero,
size = new IntVector3(1)
};
IntBounds3 p = new IntBounds3
{
start = b.start,
size = IntVector3.zero
};
var ivs = new List <IntVector3>(cubeSize * cubeSize * cubeSize);
while (b.size.x <= cubeSize)
{
foreach (var iv in b.IteratorYXZ)
{
if (p.Contains(iv))
{
continue;
}
ivs.Add(iv);
}
p = b;
b = b.ExpandedBordersAdditive(new IntVector3(1));
}
if (cubeSize % 2 == 0)
{
b.size -= new IntVector3(1);
b.start += new IntVector3(1);
foreach (var iv in b.IteratorXYZ)
{
if (p.Contains(iv))
{
continue;
}
ivs.Add(iv);
}
}
return(ivs.ToArray());
}
