public void ForceAddTile(DominoTileEntity tile)
{
if (head == null && tail == null)
{
head = tail = tile;
return;
}
if (head == tail && tile.GetUnlinkedValues().Any(x => x == head.FirstValue))
{
tile.Link(head);
tail = tile;
return;
}
if (head.MatchesUnlinkedValue(tile))
{
tile.Link(head);
head = tile;
return;
}
if (tail.MatchesUnlinkedValue(tile))
{
tail.Link(tile);
tail = tile;
return;
}
throw new ApplicationException($"Illegal move. Head nor tail matches '{tile}'");
}
public void Link_TilesOnEachSide_NoUnlinkedValues()
{
var tileOne = new DominoTileEntity(1, 2);
var tileTwo = new DominoTileEntity(2, 3);
var tileThree = new DominoTileEntity(1, 4);
tileOne.Link(tileTwo);
tileOne.Link(tileThree);
Assert.Equal(0, tileOne.GetUnlinkedValues().Count());
}
protected void AddTile(
PlayerTrain playerTrain,
DominoTileEntity tile)
{
tile.Link(playerTrain.head);
playerTrain.head = tile;
}
public void Link_DoubleWithTileOnEachSide_CorrectSequence()
{
var tile1 = new DominoTileEntity(11, 0);
var tile2 = new DominoTileEntity(0, 0);
var tile3 = new DominoTileEntity(0, 4);
tile1.Link(tile2);
tile2.Link(tile3);
}
public void Link_EngineWithMatching_CorrectLink()
{
var engine = new DominoTileEntity(12, 12, true);
var tile = new DominoTileEntity(12, 11);
tile.Link(engine);
Assert.Equal(engine, tile.GetLinkedTiles().First());
Assert.Equal("HalfLinkedState", tile.GetStateType().Name);
Assert.Equal(1, tile.GetUnlinkedValues().Count());
Assert.Equal(11, tile.GetUnlinkedValues().First());
}
public void Link_WhenHalfLinkedToUnorderedTile_TilesAreFlippedSoValuesAlign()
{
var engine = new DominoTileEntity(7, 7, isEngine: true);
var tileTwo = new DominoTileEntity(2, 7);
var tileThree = new DominoTileEntity(9, 2);
tileTwo.Link(engine);
tileThree.Link(tileTwo);
Assert.Equal(7, tileTwo.FirstValue);
Assert.Equal(2, tileThree.FirstValue);
}
public void Link_OnAlreadyLinkedValue_ThrowsException()
{
var tileOne = new DominoTileEntity(1, 2);
var tileTwo = new DominoTileEntity(2, 3);
var tileThree = new DominoTileEntity(2, 4);
tileOne.Link(tileTwo);
Action linkThreeOnTwo = () => tileTwo.Link(tileThree);
Action linkTwoOnThree = () => tileThree.Link(tileTwo);
Assert.Equal(1, tileTwo.GetUnlinkedValues().Count());
Assert.Equal(3, tileTwo.GetUnlinkedValues().First());
Assert.Equal("HalfLinkedState", tileTwo.GetStateType().Name);
Assert.ThrowsAny <Exception>(linkThreeOnTwo);
Assert.ThrowsAny <Exception>(linkTwoOnThree);
}
public void Link_ThreeTiles_LinkedRefsAreCorrect()
{
var engine = new DominoTileEntity(12, 12, true);
var tileOne = new DominoTileEntity(12, 11);
var tileTwo = new DominoTileEntity(11, 10);
tileOne.Link(engine);
tileTwo.Link(tileOne);
Assert.True(tileOne.IsLinked(engine));
Assert.True(tileTwo.IsLinked(tileOne));
Assert.Equal("FullyLinkedState", tileOne.GetStateType().Name);
Assert.Equal("HalfLinkedState", tileTwo.GetStateType().Name);
Assert.Equal(1, tileTwo.GetUnlinkedValues().Count());
Assert.Equal(10, tileTwo.GetUnlinkedValues().First());
}
public void Link_TwoMatching_CorrectLink()
{
var tileOne = new DominoTileEntity(1, 2);
var tileTwo = new DominoTileEntity(2, 3);
tileTwo.Link(tileOne);
Assert.Equal(tileOne, tileTwo.GetLinkedTiles().First());
Assert.Equal("HalfLinkedState", tileTwo.GetStateType().Name);
Assert.Equal(1, tileTwo.GetUnlinkedValues().Count());
Assert.Equal(3, tileTwo.GetUnlinkedValues().First());
Assert.Equal(tileTwo, tileOne.GetLinkedTiles().First());
Assert.Equal("HalfLinkedState", tileOne.GetStateType().Name);
Assert.Equal(1, tileOne.GetUnlinkedValues().Count());
Assert.Equal(1, tileOne.GetUnlinkedValues().First());
}