public void clipTo(CSGNode bsp)
{
this.polygons = bsp.clipPolygons(this.polygons);
if (this.front != null)
{
this.front.clipTo(bsp);
}
if (this.back != null)
{
this.back.clipTo(bsp);
}
}
public CSG union(CSG csg)
{
CSGNode a = new CSGNode(this.clone().polygons);
CSGNode b = new CSGNode(csg.clone().polygons);
a.clipTo(b);
b.clipTo(a);
b.invert();
b.clipTo(a);
b.invert();
a.build(b.allPolygons());
return(CSG.fromTriangles(a.allPolygons()));
}
public CSGNode clone()
{
CSGNode node = new CSGNode();
node.plane = this.plane == null ? null : this.plane.clone();
node.front = this.front == null ? null : this.front.clone();
node.back = this.back == null ? null : this.back.clone();
node.polygons = new List <CSGPolygon>();
foreach (CSGPolygon p in this.polygons)
{
node.polygons.Add(p.clone());
}
return(node);
}
