private void MovedOrRefresh(Player player, SeenRoom room, RoomDisplayCommand command, Direction?direction)
{
if (player.RoomDetectionState == RoomDetectionState.HaveMatch && command == RoomDisplayCommand.Move && direction != null)
{
// user is moving, verify that the new room we are in is in fact what we think it is.
VerifyNewRoom(player.LastSeenRoom, direction.Value, room, player);
}
else
{
// first find a potential match for the room.
FindPotentialRoomMatch(room, player);
if (room.PotentialMatches.Count == 1)
{
// we found a definite match, simply set the current room and be done with it.
SetCurrentRoom(RoomDetectionState.HaveMatch, room, player);
}
else if (room.PotentialMatches.Count == 0)
{
// found a room that we have no idea where it is, so we're officially lost.
SetCurrentRoom(RoomDetectionState.NoClue, null, player);
}
else
{
if (player.RoomDetectionState == RoomDetectionState.HaveMatches && direction != null)
{
player.LastSeenRoom.AdjacentRooms[(int)direction] = room;
SetCurrentRoom(RoomDetectionState.HaveMatches, room, player);
CalculateRoomWeb(player);
}
else if (command == RoomDisplayCommand.Refresh && player.RoomDetectionState == RoomDetectionState.HaveMatch && room.HasMatch(player.LastSeenRoom.Match.RoomNumber))
{
// player refreshed, so if we had a match don't overwrite it with an ambiguity.
return;
}
else if (player.RoomDetectionState == RoomDetectionState.HaveMatch && command == RoomDisplayCommand.Move && direction == null)
{
// We couldn't tell what direction the user moved, so look at the adjacent rooms and see if there's a single match.
var adjacentRooms = player.LastSeenRoom.Match.GetAdjacentRoomNumbers();
var narrowedList = room.PotentialMatches.Where(p => adjacentRooms.Any(a => p.RoomNumber == a));
if (narrowedList.Count() == 1)
{
room.PotentialMatches.RemoveAll(x => x.RoomNumber != narrowedList.First().RoomNumber);
// found a definite match, let's assume the user moved there.
SetCurrentRoom(RoomDetectionState.HaveMatch, room, player);
return;
}
}
else
{
SetCurrentRoom(RoomDetectionState.HaveMatches, room, player);
}
}
}
}
