private void RecursiveApply(int[] tracker, int[] voronoi, int idx, Point p, int width, int height)
{
int ox = this.EdgeSampling;
int oy = this.EdgeSampling;
int rw = width + this.EdgeSampling * 2;
int rh = height + this.EdgeSampling * 2;
if (p.Inside(-ox, -oy, rw, rh) && voronoi[(p.X + ox) + (p.Y + oy) * rw] != 2 /* edge */ && tracker[(p.X + ox) + (p.Y + oy) * rw] == 0 /* not hit */)
tracker[(p.X + ox) + (p.Y + oy) * rw] = idx + MAPPING_OFFSET;
else
return;
this.RecursiveApply(tracker, voronoi, idx, p.Left, width, height);
this.RecursiveApply(tracker, voronoi, idx, p.Right, width, height);
this.RecursiveApply(tracker, voronoi, idx, p.Up, width, height);
this.RecursiveApply(tracker, voronoi, idx, p.Down, width, height);
}
private int FindValueNearOpposite(int[] tracker, int[] data, int x, int y, int i, int j, int width, int height)
{
Point p = new Point(i, j);
int ox = this.EdgeSampling;
int oy = this.EdgeSampling;
int rw = width + this.EdgeSampling * 2;
int rh = height + this.EdgeSampling * 2;
if (p.Inside(width, height) && tracker[(i + ox) + (j + oy) * rw] != 0)
return data[i + j * width];
Random r = this.GetCellRNG(x + i, y + j);
if (p.Right.Inside(width, height) && (p.Down.Inside(width, height) || r.Next(2) == 0))
return this.FindValueNearOpposite(tracker, data, x, y, i + 1, j, width, height);
else if (p.Down.Inside(width, height))
return this.FindValueNearOpposite(tracker, data, x, y, i, j + 1, width, height);
return 0;
}
