public Harbor(MaterialType material, IEdge edge, ITile tile)
{
if (edge == null)
throw new ArgumentNullException(nameof(edge));
if (tile == null)
throw new ArgumentNullException(nameof(tile));
if (!Enum.IsDefined(typeof(MaterialType), material) || material == MaterialType.Sea)
throw new ArgumentException("Invalid discount material, should be defined enum value and not sea type");
if (tile.Rawmaterial != MaterialType.Sea)
throw new ArgumentException("Tile should be sea tile");
if (!edge.IsAdjacentTo(tile))
throw new ArgumentException("Edge and tile should be adjacent");
Discount = material;
Edge = edge;
Tile = tile;
}
