private void RemoveAreaBodyFromActiveArea(BaseActiveArea activeArea, AreaBody areaBody)
{
// remove it from this AA.
activeArea.RemoveBody(areaBody);
// if it's not in any other AA at this point, hibernate it.
var isActiveAreasContainingBody = this.ActiveAreas.Any(aa =>
aa != activeArea && // is a different active area
aa.AreaBodies.Select(aab => aab.Body).Contains(areaBody.Body)); // contains the body
if (!isActiveAreasContainingBody)
{
// no other active area has this body in it, so go ahead and hibernate the body
this.BodiesToHibernate.Add(areaBody.Body);
}
}
