public INoise GetLandFormFct()
{
//INoise Temperature_fractal = new ScaleOffset(new Voronoi2(_seed, _freq, 0.8, new FractalFbm(new Perlin(7894), 2, 0.8)), 0.5, 0);
INoise Temperature_fractal = new Voronoi2(_seed, _freq, 0.8);
INoise ClampedValue = new Clamp(Temperature_fractal, 0, 1);
return(Temperature_fractal);
}
private void BuildGraph(IEnumerable<Vector2> points, Voronoi2.Voronoi voronoi)
{
var libEdges = voronoi.Edges;
var centerLookup = new Dictionary<Vector2, Center>();
foreach (var point in points) {
var p = new Center {
Index = _centers.Count,
Point = point,
Neighbors = new List<Center>(),
Borders = new List<Edge>(),
Corners = new List<Corner>()
};
_centers.Add(p);
centerLookup[point] = p;
}
foreach (var p in _centers) {
voronoi.Region(p.Point);
}
_cornerMap = new Dictionary<int, List<Corner>>();
foreach (var libEdge in libEdges) {
var dedge = libEdge.DelaunayLine();
var vedge = libEdge.VoronoiEdge();
var edge = new Edge {
Index = _edges.Count,
River = 0,
Midpoint = vedge.P0.HasValue && vedge.P1.HasValue ? Vector2.Lerp(vedge.P0.Value, vedge.P1.Value, 0.5f) : (Vector2?) null
};
_edges.Add(edge);
edge.V0 = MakeCorner(vedge.P0);
edge.V1 = MakeCorner(vedge.P1);
edge.D0 = dedge.P0.HasValue ? centerLookup[dedge.P0.Value] : null;
edge.D1 = dedge.P1.HasValue ? centerLookup[dedge.P1.Value] : null;
if (edge.D0 != null) {edge.D0.Borders.Add(edge);}
if (edge.D1 != null) { edge.D1.Borders.Add(edge);}
if (edge.V0 != null) { edge.V0.Protrudes.Add(edge);}
if (edge.V1 != null) { edge.V1.Protrudes.Add(edge);}
if (edge.D0 != null && edge.D1 != null) {
AddToCenterList(edge.D0.Neighbors, edge.D1);
AddToCenterList(edge.D1.Neighbors, edge.D0);
}
if (edge.V0 != null && edge.V1 != null) {
AddToCornersList(edge.V0.Adjacent, edge.V1);
AddToCornersList(edge.V1.Adjacent, edge.V0);
}
if (edge.D0 != null) {
AddToCornersList(edge.D0.Corners, edge.V0);
AddToCornersList(edge.D0.Corners, edge.V1);
}
if (edge.D1 != null) {
AddToCornersList(edge.D1.Corners, edge.V0);
AddToCornersList(edge.D1.Corners, edge.V1);
}
if (edge.V0 != null) {
AddToCenterList(edge.V0.Touches, edge.D0);
AddToCenterList(edge.V0.Touches, edge.D1);
}
if (edge.V1 != null) {
AddToCenterList(edge.V1.Touches, edge.D0);
AddToCenterList(edge.V1.Touches, edge.D1);
}
}
}
