public Player(IMovePlayer start)
{
current = start;
onCurrentChanged = () => { };
onDone = () => { };
onWait = () => { };
}
public void StartMaze(IMovePlayer maze)
{
bool continuePlay = true;
var player = new Player(maze);
Action displayCurrentPosition = () => Console.WriteLine("Player is now in room {0}.", player.CurrentPosition);
player.OnCurrentChanged = displayCurrentPosition;
player.OnWait = () => Console.WriteLine("Player is still in room {0}.", player.CurrentPosition);
player.OnDone = () =>
{
continuePlay = false;
Console.WriteLine("Player has exited the maze.");
};
while (continuePlay)
{
Console.Write("Enter command (North, East, South, West, Current, Exit): ");
string line = Console.ReadLine();
IEnumerable <string> tokens = line.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries)
.Where(IsValid);
foreach (string token in tokens)
{
if (northTokens.Any(Matches(token)))
{
player.MoveNorth();
}
else if (eastTokens.Any(Matches(token)))
{
player.MoveEast();
}
else if (southTokens.Any(Matches(token)))
{
player.MoveSouth();
}
else if (westTokens.Any(Matches(token)))
{
player.MoveWest();
}
else if (exitTokens.Any(Matches(token)))
{
continuePlay = false;
}
else if (currentTokens.Any(Matches(token)))
{
displayCurrentPosition();
}
else
{
throw new ArgumentException(string.Format("Unknown token {0}.", token), "token");
}
}
}
}
public OpenWall(IMovePlayer destination)
{
if (destination == null)
{
throw new ArgumentNullException("destination", "destination is null.");
}
this.destination = destination;
}
/// <summary>
/// Prompts the user for a password if necessary and attempts
/// to enter the portal.
/// </summary>
/// <returns></returns>
public BoolMessageResult TryEnter(IMovePlayer movePlayer)
{
string pwdText = string.Empty;
if (this.pwd != null)
{
pwdText = this.userPrompt.PromptText("Enter Portal", "What's the password? ");
}
return(this.TryEnter(movePlayer, pwdText));
}
void IMovable.MoveTo(IMovePlayer room)
{
if (room == null)
{
throw new ArgumentNullException("room", "room is null.");
}
current = room;
onCurrentChanged();
}
public void Execute()
{
Console.Write("Enter maze type ({0}): ", string.Join(", ", validMazeTypes));
string mazeType = Console.ReadLine();
if (string.IsNullOrEmpty(mazeType))
{
mazeType = SquareSnake;
}
if (!validMazeTypes.Any(validMazeType => StringComparer.OrdinalIgnoreCase.Compare(validMazeType, mazeType) == 0))
{
throw new ArgumentException(string.Format("Unknown maze type {0}.", mazeType));
}
int length = 0;
bool invalid = true;
while (invalid)
{
Console.Write("Enter a length: ");
string input = Console.ReadLine();
if (string.IsNullOrEmpty(input))
{
length = 4;
break;
}
if (input.StartsWith("q", StringComparison.OrdinalIgnoreCase))
{
return;
}
invalid = !int.TryParse(input, out length);
}
ICreateMazes mazeFactory = null;
if (StringComparer.OrdinalIgnoreCase.Compare(mazeType, SquareSnake) == 0)
{
mazeFactory = new SnakeSquareMazeFactory(length);
}
else if (StringComparer.OrdinalIgnoreCase.Compare(mazeType, Simple) == 0)
{
mazeFactory = new SimpleMazeFactory(length);
}
IMovePlayer maze = mazeFactory.Create();
mazeClient.StartMaze(maze);
}
public BoolMessageResult TryEnter(IMovePlayer movePlayer, string pwd)
{
if (this.pwd != null)
{
if (this.failedAttempts >= this.maxAttempts)
{
var msg = string.Format("This portal has closed because you have tried {0} incorrect passwords to access it. Tough luck!", this.failedAttempts);
return(new BoolMessageResult(false, msg));
}
if (string.IsNullOrEmpty(pwd))
{
return(new BoolMessageResult(false, "This portal requires a password"));
}
else if (!this.pwd.IsMatch(pwd))
{
this.failedAttempts++;
return(new BoolMessageResult(false, "That is not the correct password for this portal"));
}
}
return(movePlayer.MoveTo(this.destination));
}
