private void SetDomainHeight(SpanningTree tree)
{
foreach (var peak in _voronoiSet)
{
peak.PeakHeight = tree.GetHeight(peak.PeakPoint);
}
}
protected internal float[,] GenerateVoronoi(bool domainMap)
{
var tx = (int)_arraySize.x;
var ty = (int)_arraySize.y;
//var tree = new PeakSearchTree(_voronoiSet, 100);
int mx;
int my;
SpanningTree spanningTree = null;
if (domainMap)
{
//Bottom Center Peace
var start = _voronoiSet[((PeakDistance)(PeakDistances(_voronoiSet, tx / 2, 0)[0])).Id];
spanningTree = new SpanningTree(_voronoiSet, start);
SetDomainHeight(spanningTree);
}
var highestScore = 0.0f;
for (my = 0; my < ty; my++)
{
for (mx = 0; mx < tx; mx++)
{
var peakDistances = PeakDistances(_voronoiSet, mx, my);
var peakDistOne = (PeakDistance)peakDistances[0];
var peakDistTwo = (PeakDistance)peakDistances[1];
var hScore = GetVornoiHeight(domainMap, _voronoiScale, peakDistOne, peakDistTwo, tx, ty, _voronoiCells, _voronoiSet, spanningTree);
hScore = Math.Max(0.0f, hScore);
hScore = Math.Min(1.0f, hScore);
_heightMap[mx, my] = hScore;
if (hScore > highestScore)
{
highestScore = hScore;
}
}
}
// Normalise...
for (my = 0; my < ty; my++)
{
for (mx = 0; mx < tx; mx++)
{
var normalisedHeight = _heightMap[mx, my] * (1.0f / highestScore);
_heightMap[mx, my] = normalisedHeight;
}
}
return(_heightMap);
}
private static float GetVornoiHeight(bool domainMap, float voronoiScale, PeakDistance d1, PeakDistance d2, int tx, int ty, double voronoiCells, List <Peak> voronoiSet, SpanningTree tree)
{
if (domainMap)
{
var peakOne = voronoiSet[d1.Id];
var peakTwo = voronoiSet[d2.Id];
var hScore = peakOne.PeakHeight;
if (tree.IsEdgeBetweenVectors(peakOne.PeakPoint, peakTwo.PeakPoint))
{
hScore = GetSlopeHeight(d1, d2, voronoiSet);
}
return(hScore);
}
else
{
var scale = (float)(Math.Abs(d1.Dist - d2.Dist) / ((tx + ty) / Math.Sqrt(voronoiCells)));
var peakOne = voronoiSet[d1.Id];
var h1 = peakOne.PeakHeight;
var hScore = h1 - Math.Abs(d1.Dist / d2.Dist) * h1;
hScore = (hScore * scale * voronoiScale) + (hScore * (1.0f - voronoiScale));
return(hScore);
}
}