public IEnumerable <Neighbour> GetNeighbours(RoomPlan room)
{
Contract.Requires(room != null);
Contract.Ensures(Contract.Result <IEnumerable <Neighbour> >() != null);
return(_neighbourhood[room]);
}
/// <summary>
/// Add a room to the floorplan. This will clip the room to the outer wall and other rooms, which may result in the room being split into two or more parts
/// </summary>
/// <param name="roomFootprint">The footprint of the room to try and add</param>
/// <param name="wallThickness">The thickness of the walls of this room</param>
/// <param name="split">If true false and this room is split into two parts no room will be added</param>
/// <returns></returns>
public IReadOnlyList <IRoomPlan> Add(IEnumerable <Vector2> roomFootprint, float wallThickness, bool split = false)
{
if (_isFrozen)
{
throw new InvalidOperationException("Cannot add rooms to floorplan once it is frozen");
}
var solution = ShapesForRoom(roomFootprint, split);
if (solution == null)
{
return(new IRoomPlan[0]);
}
var result = new List <IRoomPlan>();
foreach (var shape in solution)
{
//Reject rooms with zero points
if (shape.Count == 0)
{
continue;
}
//Mark the neighbourhood cache as dirty...
//...this means it will recalculate all neighbourhood relationships in the entire plan next time there is a query
_neighbourhood.Dirty = true;
//Try to create a room, this may fail in certain circumstances. e.g. if the wallThickness > size of room
//We simply skip failing rooms
RoomPlan room;
if (!RoomPlan.TryCreate(this, shape, wallThickness, _nextId++, out room))
{
continue;
}
//Insert the new room into the appropriate data structures
result.Add(room);
_rooms.Add(room);
}
return(result);
}
internal static bool TryCreate(GeometricFloorplan plan, IReadOnlyList <Vector2> footprint, float wallThickness, uint id, out RoomPlan room)
{
Contract.Requires(plan != null);
Contract.Requires(footprint != null);
Contract.Requires(wallThickness > 0);
Vector2[] inner;
IReadOnlyList <IReadOnlyList <Vector2> > corners;
var sections = footprint.Sections(wallThickness, out inner, out corners).ToArray();
//No wall sections generated means this is not a valid room shape!
if (sections.Length == 0 || inner.Length == 0)
{
room = null;
return(false);
}
room = new RoomPlan(plan, footprint, inner, sections, corners, wallThickness, id);
return(true);
}