private void BuildCorridor(IMap map, MapCell currentCell)
{
MapCell nextCell;
var direction = Dir.Zero;
bool success;
do
{
_directionPicker.LastDirection = direction;
_directionPicker.ResetDirections();
var emptySide = currentCell.Sides
.Single(s => s.Value != Side.Wall)
.Key;
success = false;
do
{
direction = _directionPicker.NextDirectionExcept(emptySide);
success = map.TryGetAdjacentCell(currentCell, direction, out nextCell);
if (success)
{
map.CreateCorridorSide(currentCell, nextCell, direction, Side.Empty);
}
} while (_directionPicker.HasDirections && !success);
if (!success)
{
return;
}
} while (currentCell.IsDeadEnd);
}
private bool TryPickRandomUnvisitedAdjacentCell(
IMap map, MapCell currentCell, out MapCell nextCell, out Dir direction)
{
var success = false;
do
{
direction = _directionPicker.NextDirection();
success = map.TryGetAdjacentCell(currentCell, direction, out nextCell)
&& !nextCell.IsVisited;
}
while (_directionPicker.HasDirections && !success);
return success;
}
private static bool HasAdjacentCorridor(
IMap map, MapCell currentCell, Dir dir)
{
MapCell adjacentCell;
return map.TryGetAdjacentCell(currentCell, dir, out adjacentCell)
&& adjacentCell.Sides[dir] != Side.Wall;
}