public void SubGridDetect()
{
if (PrevSubGrids.Count == 0)
{
return;
}
AddSubGrids.Clear();
foreach (var sub in PrevSubGrids)
{
AddSubGrids.Add(sub);
TmpSubGrids.Add(sub);
}
TmpSubGrids.IntersectWith(RemSubGrids);
RemSubGrids.ExceptWith(AddSubGrids);
AddSubGrids.ExceptWith(TmpSubGrids);
TmpSubGrids.Clear();
SubGridsChanged = AddSubGrids.Count != 0 || RemSubGrids.Count != 0;
}
