public CellChangedEventArgs(CellMetrics metrics, Point location, T oldValue, T value)
{
Location = location;
metrics.GetCell(location, out Cell);
OldValue = oldValue;
Value = value;
}
public OccupierRemovedEventArgs(CellMetrics metrics, Point location, T occupier)
{
Location = location;
metrics.GetCell(location, out Cell);
Occupier = occupier;
}