/// <summary>
/// Executes the command as many times the command demands. If
/// the command unsuccessfully adds rooms too many times in a row,
/// it will terminate early.
/// </summary>
/// <returns>
/// True if the command executed successfully otherwise false if
/// it was terminated early because it reached the max number of
/// failed generations.
/// </returns>
private bool ExecuteCommandLoop()
{
int failedRoomGenerationAttempts = 0;
while (currentCommand.RoomsLeft > 0 && roomsToGenerate > roomsBuilt && failedRoomGenerationAttempts < MAXIMUM_GENERATION_FAILS_BEFORE_COMMAND_IS_SKIPPED)
{
if (activeFloorSprawler.NumberOfRooms == 0)
{
TryToRepopulateSprawler();
if (activeFloorSprawler.NumberOfRooms == 0)
{
throw new NoRoomsToGenerateFromException();
}
}
int roomsGenerated = ExecuteCommandOnce();
roomsBuilt += roomsGenerated;
if (currentCommand.ShouldShuffleAfterPass)
{
activeFloorSprawler.shuffleRooms();
activeFloorSprawler.shuffleRooms();
activeFloorSprawler.shuffleRooms();
activeFloorSprawler.shuffleRooms();
activeFloorSprawler.shuffleRooms();
}
if (currentCommand.ShouldFlipDepthOrBreadthFirstAfterPass)
{
activeFloorSprawler.IsDepthFirst = !activeFloorSprawler.IsDepthFirst;
}
if (roomsGenerated == 0)
{
failedRoomGenerationAttempts++;
}
}
return(failedRoomGenerationAttempts < MAXIMUM_GENERATION_FAILS_BEFORE_COMMAND_IS_SKIPPED);
}
/// <summary>
/// Changes the order of input by adding the Room
/// objects to a temporary FloorSprawler and using
/// the shuffleRooms method of that class. Returns
/// as a new object.
/// </summary>
/// <param name="input"></param>
/// <returns>A List of type Room where the order is
/// different than the order within input.</returns>
private List <Room> GetShuffledRoomArray(List <Room> input)
{
FloorSprawler tempSprawler = new FloorSprawler();
foreach (Room r in input)
{
if (r != null)
{
tempSprawler.addRoom(r);
}
}
tempSprawler.shuffleRooms();
List <Room> toReturn = new List <Room>();
while (tempSprawler.HasNextRoom)
{
toReturn.Add(tempSprawler.removeNextRoom());
}
return(toReturn);
}