public void Remove(BinaryMap input)
{
BinaryMap sw2ne = new BinaryMap(input.Size);
BinaryMap se2nw = new BinaryMap(input.Size);
BinaryMap positions = new BinaryMap(input.Size);
BinaryMap squares = new BinaryMap(input.Size);
while (true)
{
sw2ne.Copy(input, new RectangleC(0, 0, input.Width - 1, input.Height - 1), new Point());
sw2ne.And(input, new RectangleC(1, 1, input.Width - 1, input.Height - 1), new Point());
sw2ne.AndNot(input, new RectangleC(0, 1, input.Width - 1, input.Height - 1), new Point());
sw2ne.AndNot(input, new RectangleC(1, 0, input.Width - 1, input.Height - 1), new Point());
se2nw.Copy(input, new RectangleC(0, 1, input.Width - 1, input.Height - 1), new Point());
se2nw.And(input, new RectangleC(1, 0, input.Width - 1, input.Height - 1), new Point());
se2nw.AndNot(input, new RectangleC(0, 0, input.Width - 1, input.Height - 1), new Point());
se2nw.AndNot(input, new RectangleC(1, 1, input.Width - 1, input.Height - 1), new Point());
positions.Copy(sw2ne);
positions.Or(se2nw);
if (positions.IsEmpty())
break;
squares.Copy(positions);
squares.Or(positions, new RectangleC(0, 0, positions.Width - 1, positions.Height - 1), new Point(1, 0));
squares.Or(positions, new RectangleC(0, 0, positions.Width - 1, positions.Height - 1), new Point(0, 1));
squares.Or(positions, new RectangleC(0, 0, positions.Width - 1, positions.Height - 1), new Point(1, 1));
input.AndNot(squares);
}
Logger.Log(input);
}
