public void AddRegion(VoronoiRegion <Vertex2> region)
{
PolygonRegionIndex ri = new PolygonRegionIndex();
PolygonRegion r = new PolygonRegion();
//添加多边形顶点，计算多边形中心点
Vector3 center = Vector3.zero;
foreach (var c in region.Cells)
{
var z = na.NoiseValue(c.CircumCenter.X, c.CircumCenter.Y);
var tmpPoint = new Vector3(c.CircumCenter.X, c.CircumCenter.Y, z);
var p = Contain(tmpPoint);
center += p;
r.Vertexs.Add(p);
if (!vertexs.Contains(p))
{
vertexs.Add(p);
}
}
r.position = center / region.Cells.Count;
ri.center = center / region.Cells.Count;
//添加多边形边
foreach (var e in region.Edges)
{
var pA = Contain(new Vector3(e.From.CircumCenter.X, e.From.CircumCenter.Y));
var pB = Contain(new Vector3(e.To.CircumCenter.X, e.To.CircumCenter.Y));
var edge = Contain(new PolygonEdge(pA, pB));
r.Edges.Add(edge);
if (!edges.Contains(edge))
{
edges.Add(edge);
}
}
foreach (var e in region.Edges)
{
var pA = ContainVertexIndex(new Vector3(e.From.CircumCenter.X, e.From.CircumCenter.Y));
var pB = ContainVertexIndex(new Vector3(e.To.CircumCenter.X, e.To.CircumCenter.Y));
var edge = new PolygonEdgeIndex(pA, pB);
var index = Contain(edge);
if (index == -1)
{
edgesIndex.Add(edge);
index = edgesIndex.Count - 1;
}
ri.EdgesIndex.Add(index);
}
regions.Add(r);
regionsIndex.Add(ri);
}
int Contain(PolygonEdgeIndex edge)
{
for (int i = 0; i < edgesIndex.Count; i++)
{
if (edge == edgesIndex[i])
{
return(i);
}
}
return(-1);
}
