public void AddDisc(DiscPosition discPosition, Board board, out bool isLegalPlay)
{
isLegalPlay = true;
//Outside the board
if (discPosition.X > board.BoundaryX
|| discPosition.Y > board.BoundaryY
|| discPosition.X < 1
|| discPosition.Y < 1)
{
isLegalPlay = false;
}
if(board.DiscsOnBoard == null)
board.DiscsOnBoard = new List<DiscPosition>();
//On occupied position
if (board.DiscsOnBoard.Exists(p =>
p.X.Equals(discPosition.X) && p.Y.Equals(discPosition.Y)
))
{
isLegalPlay = false;
}
board.DiscsOnBoard.Add(discPosition);
}
public DiscPosition Play(Board board)
{
var possiblePosition = GetPossibleDiscPosition(board.DiscsOnBoard, board.BoundaryX, board.BoundaryY);
var myMove = new DiscPosition
{
X = possiblePosition.X,
Y = possiblePosition.Y
};
return myMove;
}
public void ShouldNotThrowExceptionIfDiscsOnBoardIsNull()
{
var disc = new DiscPosition { PlayerInitialLetter = 'T', X = 15, Y = 10 };
var board = new Board
{
BoundaryX = 20,
BoundaryY = 20
};
bool isLegalPlay = true;
Assert.DoesNotThrow(() => _gameManager.AddDisc(disc, board, out isLegalPlay));
}
public void ShouldStateIllegalPlayIfAddingOnOccupiedPosition()
{
var disc = new DiscPosition { PlayerInitialLetter = 'T', X = 15, Y = 10 };
var board = new Board
{
BoundaryX = 20,
BoundaryY = 20,
DiscsOnBoard = new List<DiscPosition>
{
new DiscPosition { PlayerInitialLetter = 'T', X = 15, Y = 10 }
}
};
bool isLegalPlay = true;
_gameManager.AddDisc(disc, board, out isLegalPlay);
Assert.IsFalse(isLegalPlay);
}
private DiscPosition GetPossibleDiscPosition(IList<DiscPosition> occupiedPositions, int boundaryX, int boundaryY)
{
var suggestion = new DiscPosition();
var positionComparer = new PositionComparer();
var maxIterations = boundaryX * boundaryY;
do
{
suggestion = new DiscPosition
{
X = Randomizer.Next(1, boundaryX + 1),
Y = Randomizer.Next(1, boundaryY + 1)
};
maxIterations--;
}
while (occupiedPositions.Contains(suggestion, positionComparer)
&& maxIterations >= 0);
return suggestion;
}
public void ShouldStateIllegalPlayIfOutsideBoard()
{
var disc = new DiscPosition { PlayerInitialLetter = 'T', X = 0, Y = 0 };
var board = new Board { BoundaryX = 20, BoundaryY = 20 };
bool isLegalPlay = true;
_gameManager.AddDisc(disc, board, out isLegalPlay);
Assert.IsFalse(isLegalPlay);
}