public void NeighborCountIsCorrect()
{
const int radius = 3;
var board = new HexagonalBoard(radius);
Assert.Equal(6, board.GetNeighbors(HexagonalBoard.Center).Count()); // the center of the board should always have 6 neighbors (since we assume a minimum radius of 1)
for (int i = 1; i < radius; ++i) // for all rings except the outer ring
{
foreach (var tile in TilesOnRing(i)) // all tiles
{
Assert.Equal(6, board.GetNeighbors(tile).Count()); // should have 6 neighbors
}
}
foreach (var tile in TilesOnRing(radius)) // for all tiles in the outer ring
{
bool IsCorner(Point3D coordinates) => coordinates.X == 0 || coordinates.Y == 0 || coordinates.Z == 0; // this is true only for the outer ring
int expectedNeighbors = IsCorner(tile) ? 3 : 4;
Assert.Equal(expectedNeighbors, board.GetNeighbors(tile).Count()); // should have 3/4 neighbors
}
}
public void TileCountIsCorrect(int radius, int size)
{
var board = new HexagonalBoard(radius);
Assert.Equal(size, board.AllTiles.Count());
}