void NotifyTileObjectChanges(IntGrid3 oldGrid, IntGrid3 newGrid)
{
if (m_environment == null)
{
m_objects.Clear();
return;
}
var rm = oldGrid.Range().Except(newGrid.Range())
.SelectMany(p => m_environment.GetContents(p));
foreach (var ob in rm)
{
m_objects.Remove(ob);
}
var add = newGrid.Range().Except(oldGrid.Range())
.SelectMany(p => m_environment.GetContents(p));
foreach (var ob in add)
{
m_objects.Add(ob);
}
}
