private static void TestNeighbours(HexBoardNeighbours testBoard, Location testLoc, IEnumerable<Location[]> neighbourGroups)
{
TestOnBoard(testBoard, testLoc);
foreach (Location[] neighbours in neighbourGroups)
{
Location neighbour2 = neighbours[0];
Location between1 = neighbours[1];
Location between2 = neighbours[2];
TestOnBoard(testBoard, neighbour2);
TestOnBoard(testBoard, between1);
TestOnBoard(testBoard, between2);
// that the betweens are neighbours of start, end eand each other
Assert.IsTrue(testBoard.AreNeighbours(between1, between2));
Assert.IsTrue(testBoard.AreNeighbours(testLoc, between1));
Assert.IsTrue(testBoard.AreNeighbours(testLoc, between2));
Assert.IsTrue(testBoard.AreNeighbours(neighbour2, between1));
Assert.IsTrue(testBoard.AreNeighbours(neighbour2, between2));
// but not neighbours of each other
Assert.IsFalse(testBoard.AreNeighbours(testLoc, neighbour2));
}
}
private static void TestNeighbour2Triplet(Cell cell, Cell[] triplet)
{
Assert.AreEqual(3, triplet.Length);
NoNullsInCellArray(triplet);
var testBoard = new HexBoardNeighbours(BoardSize);
var testLoc = cell.Location;
var neighbour2 = triplet[0].Location;
var between1 = triplet[1].Location;
var between2 = triplet[2].Location;
Assert.IsTrue(testBoard.AreNeighbours(between1, between2));
Assert.IsTrue(testBoard.AreNeighbours(testLoc, between1));
Assert.IsTrue(testBoard.AreNeighbours(testLoc, between2));
Assert.IsTrue(testBoard.AreNeighbours(neighbour2, between1));
Assert.IsTrue(testBoard.AreNeighbours(neighbour2, between2));
// but not neighbours to each other
Assert.IsFalse(testBoard.AreNeighbours(testLoc, neighbour2));
}
private static void TestNeighbours(HexBoardNeighbours testBoard, Location testLoc, IEnumerable<Location> neighbours)
{
TestOnBoard(testBoard, testLoc);
Location offBoard = new Location(testBoard.BoardSize, testBoard.BoardSize - 1);
foreach (Location neighbour in neighbours)
{
// check is on board
TestOnBoard(testBoard, neighbour);
// check that the cells are actuallly neighbours
Assert.IsTrue(testBoard.AreNeighbours(testLoc, neighbour));
// not neighbours with off-board cell
Assert.IsFalse(testBoard.AreNeighbours(testLoc, offBoard));
// not neighbours with self
Assert.IsFalse(testBoard.AreNeighbours(testLoc, testLoc));
}
}
private static void DoTestNeighbour(Cell cell, Cell neibCell, HexBoard board)
{
Assert.IsTrue(cell.Location.ManhattanDistance(neibCell.Location) < 3, "Neigbour is too far away");
var neighboursTest = new HexBoardNeighbours(BoardSize);
Assert.IsTrue(neighboursTest.AreNeighbours(cell.Location, neibCell.Location));
// reflexive. If B is a neighbour of A, then B's neighbours must include A
var neibs = board.Neighbours(neibCell);
int index = Array.IndexOf(neibs, cell);
Assert.IsTrue(index >= 0, "Cell is not neighbour's neighbour");
}