/// The Generation Funtion
IEnumerator GenStep()
{
var queue = new SortedSet <GenElement>();
int hcount = 0;
// ====================================================================
// Highway generation phase.
// ====================================================================
// Initialization.
// Simply create a highway segment.
queue.Add(new GenHighway(cfg.beginSegment, cfg.beginPopulation, 0, 0));
// Add a reversed begin segment.
queue.Add(new GenHighway(
new Segment(cfg.beginSegment.from, cfg.beginSegment.from - cfg.beginSegment.dir)
, cfg.beginPopulation, 0, 0));
for (int t = 0; hcount < cfg.count && queue.Count != 0; t++)
{
info.currentHighwayCount = hcount + 1;
var cur = queue.First();
queue.Remove(cur);
var x = cur.segment;
var prevX = x;
x = GenUtil.IntersectionCut(segs, x);
x = GenUtil.CloseEndpointCut(segs, x, cfg.endpointCutDist);
x = GenUtil.CloseEndpointMerge(segs, x, cfg.endpointMergeDist);
if (GenUtil.HasSimilarSegment(segs, x, cfg.segmentCloseDist))
{
continue;
}
if (x.dir.magnitude <= cfg.removeLength)
{
continue;
}
if (x != prevX)
{
cur.intercepted = true;
}
segs.Add(x);
colors.Add(cur.color, cur.color); // Two points per segment, so there're two colors.
hcount += 1;
cur.segment = x;
cur.Gen(queue);
GenUtil.SubmitToMesh(mesh, segs, colors);
yield return(null); // Next frame.
}
yield break; // Terminate.
}