private List <Square> searchForAvailableSquaresInGivenDirection(Predicate <Square> squareMatcher, Position startingSquarePosition, short maximumDistance, Direction direction)
{
var matchingSquares = new List <Square>();
for (short distance = 1; distance <= maximumDistance; distance++)
{
Vec2 <long> position = startingSquarePosition + ((Vec2 <short>)direction * distance);
//todo: can't convert to uint here if we have negative coord
Vec2 <int> boardPosition = position.ConvertMemberType <int>();
Optional <Square> square = checkForMatchingSquare(squareMatcher, boardPosition);
if (square.HasValue)
{
matchingSquares.Add(square.Object);
if (square.Object.IsOccupied)
{
break;
}
}
else
{
break;
}
}
return(matchingSquares);
}
private Optional <Square> checkForMatchingSquare(Predicate <Square> squareMatcher, Vec2 <int> position)
{
if (IsInsideBounds(position))
{
Square square = this[position.ConvertMemberType <uint>()];
if (squareMatcher(square))
{
return(square);
}
else
{
return(Optional <Square> .Empty);
}
}
else
{
return(Optional <Square> .Empty);
}
}
