public static BoardLocation?Neighbor(this BoardLocation currentLocation, Direction direction)
{
switch (direction)
{
case Direction.East:
return(currentLocation.East());
case Direction.North:
return(currentLocation.North());
case Direction.NorthEast:
return(currentLocation.NorthEast());
case Direction.NorthWest:
return(currentLocation.NorthWest());
case Direction.South:
return(currentLocation.South());
case Direction.SouthEast:
return(currentLocation.SouthEast());
case Direction.SouthWest:
return(currentLocation.SouthWest());
case Direction.West:
return(currentLocation.West());
default:
return(null);
}
}
private void AddPawnThreats(
Board board,
Player player,
BoardLocation playerKingLocation,
BoardLocation opposingPieceBoardLocation,
ThreatMatrix threatMatrix)
{
//PGN format for the board
// A B C D E F G H
//8:| 7|15|23|31|39|47|55|63|
//7:| 6|14|22|30|38|46|54|62|
//6:| 5|13|21|29|37|45|53|61|
//5:| 4|12|20|28|36|44|52|60|
//4:| 3|11|19|27|35|43|51|59|
//3:| 2|10|18|26|34|42|50|58|
//2:| 1| 9|17|25|33|41|49|57|
//1:| 0| 8|16|24|32|40|48|56|
BoardLocation?[] moves = new BoardLocation?[2];
if (player == Player.White)
{
//then we are worried about the black guys pieces
moves[0] = opposingPieceBoardLocation.SouthEast();
moves[1] = opposingPieceBoardLocation.SouthWest();
}
else
{
moves[0] = opposingPieceBoardLocation.NorthEast();
moves[1] = opposingPieceBoardLocation.NorthWest();
}
moves
.Where(a => a.HasValue)
.ForEach(a => AddThreat(threatMatrix, playerKingLocation, opposingPieceBoardLocation, a.Value, ThreatDirection.Direct));
}