public FloorRun(IReadOnlyList <FloorSelection> floors, BaseMarker marker)
{
Contract.Requires(floors != null);
Selection = floors;
Marker = marker;
}
/// <summary>
/// Select multiple runs of floors, ordered top down. Runs are split when the footprint of the floor changes (i.e. on Footprint Markers)
/// </summary>
/// <param name="random"></param>
/// <param name="metadata"></param>
/// <param name="finder"></param>
/// <param name="selectors"></param>
/// <param name="groundMarker"></param>
/// <param name="aboveGround"></param>
/// <returns></returns>
private static IEnumerable <FloorRun> SelectFloors(Func <double> random, INamedDataCollection metadata, Func <KeyValuePair <string, string>[], Type[], ScriptReference> finder, IEnumerable <BaseFloorSelector> selectors, BaseMarker groundMarker, bool aboveGround)
{
Contract.Requires(random != null);
Contract.Requires(metadata != null);
Contract.Requires(finder != null);
Contract.Requires(selectors != null);
Contract.Requires(groundMarker != null);
Contract.Ensures(Contract.Result <IEnumerable <FloorRun> >() != null);
var runs = new List <FloorRun>();
var previousMarker = groundMarker;
var floors = new List <FloorSelection>();
//Selectors, ordered top to bottom
foreach (var selector in selectors)
{
//Runs, ordered top to bottom
var r = selector.Select(random, metadata, finder);
foreach (var floorRun in r)
{
floors.AddRange(floorRun.Selection);
if (floorRun.Marker != null)
{
if (aboveGround)
{
runs.Add(new FloorRun(floors.ToArray(), floorRun.Marker));
floors.Clear();
}
else
{
runs.Add(new FloorRun(floors.ToArray(), previousMarker));
previousMarker = floorRun.Marker;
floors.Clear();
}
}
}
}
//Sanity check
if (aboveGround && floors.Count > 0)
{
throw new InvalidOperationException("Leftover floors above ground - no ground marker?");
}
//Final below ground run (doesn't have a footprint at the bottom, because udnerground floors have footprints above not below)
if (!aboveGround && floors.Count > 0)
{
runs.Add(new FloorRun(floors.ToArray(), previousMarker));
}
return(runs);
}
public FootprintSelection(BaseMarker marker, int index)
{
Marker = marker;
Index = index;
}