// Convert solid space to empty space and empty space to solid space.
void invert()
{
for (int i = 0; i < polygons.Count; i++)
{
polygons[i].flip();
}
plane.flip();
if (front != null)
{
front.invert();
}
if (back != null)
{
back.invert();
}
//std::swap(front, back);
//hmm - need to swap front and back...
csgjs_csgnode f = null;
csgjs_csgnode b = null;
if (front != null)
{
f = front.clone();
}
if (back != null)
{
b = back.clone();
}
back = f;
front = b;
}
public void flip()
{
vertices.Reverse();
for (int i = 0; i < vertices.Count; i++)
{
vertices[i].normal = csgjs_vector.negate(vertices[i].normal);
}
plane.flip();
}