private List <PaddedDiamondRow> MoveDownChain(Letter midpoint, DiamondDepth depth)
{
var result = base.Handle(midpoint, depth);
result.Add(_row);
return(result);
}
public virtual List <PaddedDiamondRow> Handle(Letter midpoint, DiamondDepth depth)
{
if (_nextHandler != null)
{
return(_nextHandler.Handle(midpoint, IncrementDepth(depth)));
}
else
{
return(new List <PaddedDiamondRow>());
}
}
public virtual List <PaddedDiamondRow> Process(Letter midpoint, DiamondDepth depth, Letter chainLetter)
{
var rowLength = RowLength(midpoint);
_row = new PaddedDiamondRow(depth, chainLetter, rowLength);
var result = new List <PaddedDiamondRow> {
_row
};
if (!midpoint.Equals(chainLetter))
{
result.AddRange(MoveDownChain(midpoint, depth));
}
return(result);
}
public PaddedDiamondRow(DiamondDepth depth, Letter letter, int rowLength)
{
PadMiddle(depth.ToInt(), letter.ToChar());
PadSides(rowLength);
}
private DiamondDepth IncrementDepth(DiamondDepth depth) => new DiamondDepth(depth.ToInt() + 1);
public override List <PaddedDiamondRow> Handle(Letter midpoint, DiamondDepth depth) => Process(midpoint, depth, _link);
