public void AddMoveIfLegal(int x, int y, ref ChessTile[,] tiles, ref bool[,] moveArray)
{
if (MoveOnBoard(x, y))
{
ChessTile toTile = tiles[x, y];
bool noThreatAndEmpty = toTile.ThreatenedBy(isBlack).Count == 0 && !toTile.HasPiece();
bool canTake = toTile.HasEnemyPiece(isBlack) && toTile.Figure.ProtectedBy().Count == 0;
moveArray[x, y] = noThreatAndEmpty || canTake;
}
}
public List <ChessFigure> ProtectedBy()
{
// Change the piece's color to see if it's threatened by anything and then change it back
isBlack = !isBlack;
List <ChessFigure> piecesProtecting = Tile.ThreatenedBy(isBlack);
isBlack = !isBlack;
return(piecesProtecting);
}