private IReversiTurn TurnForCellOnBoard(
ICellCoordinates turnCandidate,
IBoardState board)
{
var cellNeighbours = board.GetNeighboursForCell(turnCandidate);
var directions = cellNeighbours.Where(n =>
{
return(board.IsCellTakenByInactivePlayer(n));
});
var allFlippedCells = new List <ICellCoordinates>();
foreach (ICellCoordinates singleDirection in directions)
{
IEnumerable <ICellCoordinates> flippedCells =
this.FlippedCellsForDirectionOfTurnOnBoard(
singleDirection,
turnCandidate,
board);
if (null != flippedCells)
{
allFlippedCells.AddRange(flippedCells);
}
}
bool isNoDirectionFlippedEnemyItems = (0 == allFlippedCells.Count);
if (isNoDirectionFlippedEnemyItems)
{
return(null);
}
var result = new ReversiTurnPOD();
{
result.Position = turnCandidate;
result.PositionsOfFlippedItems = allFlippedCells;
}
return(result);
}
