/// <summary>
///
/// </summary>
protected Timeout MoveToCell(Cell from, Cell to)
{
// We compute move time and we check if it is a valid number.
var time = TimeUnit / Speed;
Debug.Assert(!double.IsNaN(time) && !double.IsInfinity(time));
// At last, a timeout event is created and returned.
return _env.Timeout(time);
}
public Maze(uint width, uint height)
{
Debug.Assert(width > 0 && height > 0);
Width = width;
Height = height;
Cells = AllocateCells();
GenerateMaze();
// At last, we create entrance and exit.
Entrance = Cells[0, 0];
Exit = Cells[height - 1, width - 1];
}
public void MoveEscaper(EscaperBase escaper, Cell cell)
{
Action<EscaperBase, Cell> me = _mainPage.MazeCanvas.MoveEscaper;
_mainPage.Dispatcher.BeginInvoke(me, escaper, cell);
}
Cell[,] AllocateCells()
{
// We need to allocate one more row/column,
// in order to efficiently handle walls and borders.
var allocWidth = Width + 1;
var allocHeight = Height + 1;
// Maze cells are allocated using new measures.
var cells = new Cell[allocHeight, allocWidth];
for (var h = 0U; h < allocHeight; ++h) {
for (var w = 0U; w < allocWidth; ++w) {
cells[h, w] = new Cell(this, w, h);
}
}
return cells;
}
protected override Cell ChooseNextCell(Cell actual)
{
return actual;
}
/// <summary> /// /// </summary> protected abstract Cell ChooseNextCell(Cell actual);
protected override Cell ChooseNextCell(Cell actual)
{
if (actual.X <= 10)
return actual.GetNeighbour(WallPosition.East);
return actual;
}
void PositionEscaperInsideCell(Shape figure, Cell cell)
{
// Cell dimensions are computed from canvas size.
var cellWidth = Canvas.ActualWidth / _currentMaze.Width;
var cellHeight = Canvas.ActualHeight / _currentMaze.Height;
// Useful methods to compute cell offsets.
Func<uint, double> xOffset = x => x * cellWidth;
Func<uint, double> yOffset = y => y * cellHeight;
figure.Fill = new SolidColorBrush(Colors.Magenta);
figure.SetValue(Canvas.LeftProperty, xOffset(cell.X));
figure.SetValue(Canvas.TopProperty, yOffset(cell.Y));
figure.Width = figure.Height = 15;
}
public void MoveEscaper(EscaperBase escaper, Cell cell)
{
PositionEscaperInsideCell(_escapers[escaper], cell);
Canvas.UpdateLayout();
}