/// <summary>
/// Called when the user moves from one room to another. This simply verifies that the new room
/// is what we expect it to be.
/// </summary>
/// <param name="lastSeenRoom"></param>
/// <param name="movingDirection"></param>
/// <param name="room"></param>
private void VerifyNewRoom(SeenRoom lastSeenRoom, Direction movingDirection, SeenRoom room, Player player)
{
FindPotentialRoomMatch(room, player);
if (room.PotentialMatches.Count == 1)
{
// only one match for the current room. Go ahead and set it.
SetCurrentRoom(RoomDetectionState.HaveMatch, room, player);
return;
}
if (room.PotentialMatches.Count == 0)
{
// no matches, not sure what to do.
SetCurrentRoom(RoomDetectionState.NoClue, null, player);
return;
}
// ambiguous match found, so attempt to figure out what room we're in by following the
// exit that the user used.
var exitData = lastSeenRoom.Match.GetExits().SingleOrDefault(x => x.Direction == movingDirection);
Room matchedRoom = null;
if (exitData != null)
{
matchedRoom = room.GetMatch(exitData.AdjacentRoomNumber);
}
if (matchedRoom == null)
{
// no match. Dunno what happened. User possibly teleported into an ambiguous room.
SetCurrentRoom(RoomDetectionState.HaveMatches, room, player);
}
else
{
// we have a match. Remove all candidates that aren't the matched room
room.PotentialMatches.RemoveAll(x => x != matchedRoom);
SetCurrentRoom(RoomDetectionState.HaveMatch, room, player);
}
}
