/// <summary>
/// Initialises the generation.
/// </summary>
private void Initialise()
{
for (int row = 0; row < UniverseSize; row++)
for (int column = 0; column < UniverseSize; column++)
universe[row, column] = new Cell(row, column, false);
}
/// <summary>
/// Creates a mouse click binding for a cell so that the cell's
/// living status can be toggled by the user.
/// </summary>
/// <param name="cell">The cell that this binding is for.</param>
/// <returns>An InputBinding for the cell.</returns>
private InputBinding CreateMouseClickInputBinding(Cell cell)
{
InputBinding cellTextBlockInputBinding = new InputBinding(
generationViewModel.ToggleCellLifeCommand,
new MouseGesture(MouseAction.LeftClick)
);
cellTextBlockInputBinding.CommandParameter = string.Format("{0},{1}", cell.Row, cell.Column);
return cellTextBlockInputBinding;
}
/// <summary>
/// Creates a TextBlock that represents a single cell in the game of life.
/// </summary>
/// <param name="cell">The cell that the TextBlock will represent.</param>
/// <returns>A TextBlock representing the cell.</returns>
private TextBlock CreateCellTextBlock(Cell cell)
{
TextBlock cellTextBlock = new TextBlock();
cellTextBlock.DataContext = cell;
cellTextBlock.InputBindings.Add(CreateMouseClickInputBinding(cell));
cellTextBlock.SetBinding(TextBlock.BackgroundProperty, CreateCellAliveBinding());
return cellTextBlock;
}
/// <summary>
/// Gets the number of neighbor cells that are alive for a particular cell.
/// </summary>
/// <param name="generation">The generation.</param>
/// <param name="cell">The cell whose living neighbour are being counted.</param>
/// <returns>Number of alive neighbours for the specified cell.</returns>
private int GetNumberOfAliveNeighbors(Generation generation, Cell cell)
{
int numberOfAliveNeighbours = 0;
List<Cell> neighboringCells = new List<Cell>
{
generation.GetCell(cell.Row - 1, cell.Column - 1),
generation.GetCell(cell.Row - 1, cell.Column + 1),
generation.GetCell(cell.Row, cell.Column + 1),
generation.GetCell(cell.Row + 1, cell.Column + 1),
generation.GetCell(cell.Row + 1, cell.Column),
generation.GetCell(cell.Row + 1, cell.Column - 1),
generation.GetCell(cell.Row, cell.Column - 1),
generation.GetCell(cell.Row - 1, cell.Column)
};
neighboringCells.ForEach(
neighboringCell => numberOfAliveNeighbours +=
(neighboringCell != null && neighboringCell.Alive) ? 1 : 0
);
return numberOfAliveNeighbours;
}