//Instead of averaging the four points, finds the center point on the triangle edge that bisects the side.
//This will generate a valid point for non-planar sides
public Vector3 FindCenterBetter()
{
Segment seg = this.segment;
Level level = seg.level;
bool invertOrderForSide = ((seg.neighbor[this.num] > -1) && (seg.neighbor[this.num] < seg.num));
Level.QuadTriangulationOrder triangulationOrder = Level.GetTriangulationOrder(level, seg.num, this.num);
int[] side_verts = Utility.SideVertsFromSegVerts(this.segment.vert, this.num);
int corner = triangulationOrder.GetBisectingEdgeCorner(invertOrderForSide);
return((level.vertex[side_verts[corner]].position + level.vertex[side_verts[corner + 2]].position) / 2f);
}
