/// <summary>
/// Returns the cells that are adjecent to given cell, are not checked yet and are not blocked by a wall
/// </summary>
/// <param name="cell"></param>
/// <returns></returns>
public List <MazeCell> GetNextCellsInPath(MazeCell cell)
{
List <MazeCell> cells = new List <MazeCell>();
MazeCell top = generationService.GetTopNeighbour(cell);
if (top != null && !top.IsChecked && cell.HasPassageTowardsCell(top))
{
cells.Add(top);
}
MazeCell bottom = generationService.GetBottomNeighbour(cell);
if (bottom != null && !bottom.IsChecked && cell.HasPassageTowardsCell(bottom))
{
cells.Add(bottom);
}
MazeCell left = generationService.GetLeftNeighbour(cell);
if (left != null && !left.IsChecked && cell.HasPassageTowardsCell(left))
{
cells.Add(left);
}
MazeCell right = generationService.GetRightNeighbour(cell);
if (right != null && !right.IsChecked && cell.HasPassageTowardsCell(right))
{
cells.Add(right);
}
return(cells);
}
/// <summary>
/// Returns the top and right neighbours of given cell using the maze generation service
/// </summary>
/// <param name="cell"></param>
/// <param name="service"></param>
/// <returns></returns>
private List <MazeCell> GetTopAndRightNeighbours(MazeCell cell, MazeGenerationService service)
{
List <MazeCell> cells = new List <MazeCell>();
MazeCell top = service.GetTopNeighbour(cell);
if (top != null)
{
cells.Add(top);
}
MazeCell right = service.GetRightNeighbour(cell);
if (right != null)
{
cells.Add(right);
}
return(cells);
}