private EndState CheckTargetHit(Wumpus wumpus, IEnumerable <int> traversedRoom)
{
EndState endState = null;
foreach (int r in traversedRoom)
{
var e = HitTarget(r, wumpus);
if (e.IsGameOver)
{
endState = e;
_map.RoomsArrowTraversed.Add(r);
break;
}
_map.RoomsArrowTraversed.Add(r);
}
return(endState);
}
// Traverses the given rooms or randomly selected adjacent rooms if the given rooms are not traversable.
// Checks if the arrow hit the player, wumpus, or was a miss, and game state is set accordingly.
private void ShootArrow(IReadOnlyCollection <int> roomsToTraverse, Wumpus wumpus,
Action <EndState> gameOverHandler)
{
--CrookedArrowCount;
var endState = CheckTargetHit(wumpus, Traverse(roomsToTraverse));
if (endState != null)
{
gameOverHandler(endState);
}
else
{
Log.Write(Message.Missed);
Log.Write($"You now have {CrookedArrowCount} crooked arrows.");
gameOverHandler(CrookedArrowCount == 0
? new EndState(true, $"{Message.OutOfArrows}\n{Message.LoseMessage}")
: new EndState());
}
}
private EndState HitTarget(int currentRoom, Wumpus wumpus)
{
Log.Write(currentRoom.ToString());
EndState endState;
if (RoomNumber == currentRoom)
{
endState = new EndState(true, $"{Message.ArrowGotYou}\n{Message.LoseMessage}");
}
else if (wumpus.RoomNumber == currentRoom)
{
endState = new EndState(true, Message.WinMessage);
wumpus.IsDiscovered = true;
}
else
{
endState = new EndState();
}
return(endState);
}
/// <summary>
/// Requests the player how many and what rooms the arrow should traverse.
/// The arrow traverses the traversable rooms or randomly selected adjacent ones and the
/// arrows traversal path is checked for a hit to determine end game state.
/// </summary>
/// <param name="wumpusRoomNumber">current wumpus room number</param>
/// <param name="gameOverHandler"></param>
/// <returns>game end state result</returns>
public void ShootArrow(Wumpus wumpus, Action <EndState> gameOverHandler)
{
OnRoomsToTraverseDo(rooms => ShootArrow(rooms, wumpus, gameOverHandler));
}