public void NearbyDirectionsAreCorrect(HexDirection direction, HexDirection expectedDirection1, HexDirection expectedDirection2)
{
HexDirection[] directions = direction.NearbyDirections();
HexDirection[] expectedDirections = { expectedDirection1, expectedDirection2 };
Assert.Equal(expectedDirections, directions);
}
public List <HexCell> GetArea(HexDirection direction, int height, int width)
{
if (height < 1 || width < 1 || width % 2 == 0)
{
throw new ArgumentOutOfRangeException();
}
List <HexCell> areaCells = new List <HexCell>();
HexDirection[] nearbyDirections = direction.NearbyDirections();
List <HexCell> firstCells = new List <HexCell>();
firstCells.Add(GetNeighbor(direction));
foreach (HexDirection d in nearbyDirections)
{
HexCell lastCell = this;
for (int i = width; i > 1; i -= 2)
{
lastCell = lastCell.GetNeighbor(d);
if (lastCell == null)
{
break;
}
firstCells.Add(lastCell);
}
}
areaCells.AddRange(firstCells);
firstCells.ForEach(c => areaCells.AddRange(c.GetLine(direction, height - 1)));
return(areaCells);
}