public void Create(IslandTop surface)
{
this.surface = surface;
float highestPoint = surface.HighestPoint;
int d = (int)(surface.diameter / 2f) + 1;
treePositions = Poisson.GeneratePoisson(d, d, density, iterationPointCount, (point) =>
{
return(surface.PointMap.ContainsKey(point)
? Mathf.Abs(highestPoint - (surface.PointMap[point].Position.y * heightWeighting))
: 0f);
})
.Where(p => surface.PointMap.ContainsKey(p))
.Select(p => surface.PointMap[p])
.ToList();
}