public override int GetHashCode() { unchecked { var hashCode = SelectedGroups?.ComputeHash() ?? 0; hashCode = (hashCode * 397) ^ (int)IncludedCollisionGroups; hashCode = (hashCode * 397) ^ BuildSettings.GetHashCode(); if (Scene != null) { hashCode = (hashCode * 397) ^ Scene.Name.GetHashCode(); } return(hashCode); } }