public TicTacToeOutcome <Player> GameOutcome(Game game)
{
List <List <Tuple <int, int> > > lines = Lines(game.Size);
List <TicTacToeOutcome <Player> > outcomes = new List <TicTacToeOutcome <Player> >();
foreach (List <Tuple <int, int> > line in lines)
{
TicTacToeOutcome <Player> outcome = CheckLine(game, line);
if (outcome.IsWin)
{
return(outcome);
}
else
{
outcomes.Add(outcome);
}
}
if (outcomes.Contains(TicTacToeOutcome <Player> .Undecided))
{
return(TicTacToeOutcome <Player> .Undecided);
}
return(TicTacToeOutcome <Player> .Draw);
}
private TicTacToeOutcome <Player> CheckLine(Game game, List <Tuple <int, int> > line)
{
List <string> pieces = new List <string>();
foreach (Tuple <int, int> i in line)
{
pieces.Add(game.getPiece(i.Item1, i.Item2));
}
if (pieces.Contains("X") && pieces.Contains("O"))
{
return(TicTacToeOutcome <Player> .Draw);
}
if (pieces.Contains(""))
{
return(TicTacToeOutcome <Player> .Undecided);
}
if (pieces.Contains("X"))
{
return(TicTacToeOutcome <Player> .NewWin(Player.CROSS, line));
}
return(TicTacToeOutcome <Player> .NewWin(Player.NOUGHT, line));
}
private bool GameOver(Game game)
{
TicTacToeOutcome <Player> outcome = GameOutcome(game);
if (outcome == TicTacToeOutcome <Player> .Undecided)
{
return(false);
}
return(true);
}
public int Heuristic(Game game, Player player)
{
TicTacToeOutcome <Player> outcome = GameOutcome(game);
if (outcome.IsWin)
{
return(((outcome as TicTacToeOutcome <Player> .Win).winner == player) ? 1 : -1);
}
else
{
return(0);
}
}
//Determine the outcome of a single line
public TicTacToeOutcome <Player> LineOutcome(List <Tuple <int, int> > line, Game game)
{
List <Player> listObj = LineAsPlayers(line, game);
if (listObj.Contains(Nought) && listObj.Contains(Cross))
{
return(TicTacToeOutcome <Player> .Draw);
}
if (listObj.TrueForAll((obj) => obj == Nought))
{
return(TicTacToeOutcome <Player> .NewWin(Nought, line.AsEnumerable()));
}
if (listObj.TrueForAll((obj) => obj == Cross))
{
return(TicTacToeOutcome <Player> .NewWin(Cross, line.AsEnumerable()));
}
return(TicTacToeOutcome <Player> .Undecided);
}
/*
* GameOutcome: return the outcome of the game, in Winning case, the NewWin function is called
* to create a win case
* params:
* @ game : Game
* return: TicTacToeOutcome<Player>
*/
public TicTacToeOutcome <Player> GameOutcome(Game game)
{
if (Won(game, "X").Any())
{
return(TicTacToeOutcome <Player> .NewWin(Cross, Won(game, "X")));
}
else if (Won(game, "O").Any())
{
return(TicTacToeOutcome <Player> .NewWin(Nought, Won(game, "O")));
}
else if (Draw(game))
{
return(TicTacToeOutcome <Player> .Draw);
}
else
{
return(TicTacToeOutcome <Player> .Undecided);
}
}
private int HeuristicScore(Game game, Player player)
{
TicTacToeOutcome <Player> outcome = GameOutcome(game);
if (outcome.IsDraw)
{
return(0);
}
if (outcome.IsWin)
{
var win = outcome as TicTacToeOutcome <Player> .Win;
if (win.winner == player)
{
return(1);
}
return(-1);
}
return(-2);
}
public TicTacToeOutcome <Player> GameOutcome(Game game)
{
TicTacToeOutcome <Player> result = TicTacToeOutcome <Player> .Draw;
List <Tuple <int, int>[]> lines = GenerateLines(game);
for (int i = 0; i < lines.Count; i++)
{
string [] line = new string [game.Size];
for (int p = 0; p < lines[i].Length; p++)
{
Tuple <int, int> coord = lines[i][p];
line[p] = game.Board[coord.Item1, coord.Item2];
}
Tuple <int, int>[] z = lines[i];
int x_count = Array.FindAll(line, e => e == "X").Length;
int o_count = Array.FindAll(line, e => e == "O").Length;
int space_count = Array.FindAll(line, e => e == "").Length;
if (result == TicTacToeOutcome <Player> .Draw || result == TicTacToeOutcome <Player> .Undecided)
{
if (x_count == game.Size)
{
result = TicTacToeOutcome <Player> .NewWin(Player.Cross, lines[i]);
}
else if (o_count == game.Size)
{
result = TicTacToeOutcome <Player> .NewWin(Player.Nought, lines[i]);
}
else if (o_count >= 1 && x_count >= 1 && result == TicTacToeOutcome <Player> .Draw)
{
result = TicTacToeOutcome <Player> .Draw;
}
else
{
result = TicTacToeOutcome <Player> .Undecided;
}
}
}
return(result);
}
public TicTacToeOutcome <Player> GameOutcome(Game game)
{
// Winning Lines
List <List <Tuple <int, int> > > boardList = new List <List <Tuple <int, int> > >();
for (int i = 0; i <= game.Size - 1; i++)
{
// HORIZONTAL LINE
List <Tuple <int, int> > horizontalSeq = new List <Tuple <int, int> >();
for (int j = 0; j <= game.Size - 1; j++)
{
horizontalSeq.Add(Tuple.Create(i, j));
}
boardList.Add(horizontalSeq);
}
// VERTICAL LINE
for (int i = 0; i <= game.Size - 1; i++)
{
List <Tuple <int, int> > verticalSeq = new List <Tuple <int, int> >();
for (int j = 0; j <= game.Size - 1; j++)
{
verticalSeq.Add(Tuple.Create(j, i));
}
boardList.Add(verticalSeq);
}
// DIAGONAL LINE \
List <Tuple <int, int> > diagonalLeftSeq = new List <Tuple <int, int> >();
for (int i = 0; i <= game.Size - 1; i++)
{
diagonalLeftSeq.Add(Tuple.Create(i, i));
}
boardList.Add(diagonalLeftSeq);
// DIAGONAL LINE /
List <Tuple <int, int> > diagonalRightSeq = new List <Tuple <int, int> >();
for (int i = 0; i <= game.Size - 1; i++)
{
diagonalRightSeq.Add(Tuple.Create(i, game.Size - 1 - i));
}
boardList.Add(diagonalRightSeq);
List <TicTacToeOutcome <Player> > outcomeList = new List <TicTacToeOutcome <Player> >();
foreach (List <Tuple <int, int> > lineList in boardList)
{
List <string> currentStateList = new List <string>();
foreach (Tuple <int, int> i in lineList)
{
currentStateList.Add(game.Board[i.Item1, i.Item2]);
}
if (currentStateList.TrueForAll(x => x == "O"))
{
outcomeList.Add(TicTacToeOutcome <Player> .NewWin(Nought, lineList));
}
else if (currentStateList.TrueForAll(x => x == "X"))
{
outcomeList.Add(TicTacToeOutcome <Player> .NewWin(Cross, lineList));
}
else if (currentStateList.TrueForAll(x => x == ""))
{
outcomeList.Add(TicTacToeOutcome <Player> .Undecided);
}
else
{
if (currentStateList.Contains("O") && currentStateList.Contains("X"))
{
outcomeList.Add(TicTacToeOutcome <Player> .Draw);
}
else
{
outcomeList.Add(TicTacToeOutcome <Player> .Undecided);
}
}
}
// If it contains a win, return win
foreach (TicTacToeOutcome <Player> i in outcomeList)
{
if (i.IsWin)
{
return(i);
}
}
if (outcomeList.TrueForAll(x => x.IsDraw))
{
return(TicTacToeOutcome <Player> .Draw);
}
else
{
return(TicTacToeOutcome <Player> .Undecided);
}
}
// Note to tutor: Placed in one function
// to make finding Win and draw convenient
public TicTacToeOutcome <Player> GameOutcome(Game game)
{
// Check how many lines have draws
int numDraw = 0;
// Define variables for reuse
int countN = 0; // Count Noughts
int countC = 0; // Count Crosses
List <Tuple <int, int> > winningLine = new List <Tuple <int, int> >(); // Assume a winning line
//Horizontal Lines
// For each row
for (int x = 0; x < game.Size; x++)
{
countN = 0;
countC = 0;
winningLine = new List <Tuple <int, int> >();
// For each column
for (int y = 0; y < game.Size; y++)
{
Tuple <int, int> coOrd = Tuple.Create <int, int>(x, y);
winningLine.Add(coOrd);
if (game.getPiece(x, y) == "X")
{
countC++;
}
else if (game.getPiece(x, y) == "O")
{
countN++;
}
}
// Check for wins and draw
if (countN == game.Size)
{
return(TicTacToeOutcome <Player> .NewWin(Player.NOUGHT, winningLine));
}
else if (countC == game.Size)
{
return(TicTacToeOutcome <Player> .NewWin(Player.CROSS, winningLine));
}
else if ((countC > 0) && (countN > 0))
{
numDraw++;
}
}
//Vertical Lines
// For each column
for (int y = 0; y < game.Size; y++)
{
countN = 0;
countC = 0;
winningLine = new List <Tuple <int, int> >();
// For each row
for (int x = 0; x < game.Size; x++)
{
Tuple <int, int> coOrd = Tuple.Create <int, int>(x, y);
winningLine.Add(coOrd);
if (game.getPiece(x, y) == "X")
{
countC++;
}
else if (game.getPiece(x, y) == "O")
{
countN++;
}
}
// Check for wins and draw
if (countN == game.Size)
{
return(TicTacToeOutcome <Player> .NewWin(Player.NOUGHT, winningLine));
}
else if (countC == game.Size)
{
return(TicTacToeOutcome <Player> .NewWin(Player.CROSS, winningLine));
}
else if ((countC > 0) && (countN > 0))
{
numDraw++;
}
}
// Check Top Left Diagonal
countN = 0;
countC = 0;
winningLine = new List <Tuple <int, int> >();
// Top left diagonal is where both co-ordinates are thee same
for (int x = 0; x < game.Size; x++)
{
Tuple <int, int> coOrd = Tuple.Create <int, int>(x, x);
winningLine.Add(coOrd);
if (game.getPiece(x, x) == "X")
{
countC++;
}
else if (game.getPiece(x, x) == "O")
{
countN++;
}
}
// Check for wins and draw
if (countN == game.Size)
{
return(TicTacToeOutcome <Player> .NewWin(Player.NOUGHT, winningLine));
}
else if (countC == game.Size)
{
return(TicTacToeOutcome <Player> .NewWin(Player.CROSS, winningLine));
}
else if ((countC > 0) && (countN > 0))
{
numDraw++;
}
// Top right diagonal
// Reset Variables
countN = 0;
countC = 0;
winningLine = new List <Tuple <int, int> >();
for (int x = 0; x < game.Size; x++)
{
Tuple <int, int> coOrd = Tuple.Create <int, int>(x, game.Size - 1 - x);
winningLine.Add(coOrd);
if (game.getPiece(x, game.Size - 1 - x) == "X")
{
countC++;
}
else if (game.getPiece(x, game.Size - 1 - x) == "O")
{
countN++;
}
}
// Check for wins and draw
if (countN == game.Size)
{
return(TicTacToeOutcome <Player> .NewWin(Player.NOUGHT, winningLine));
}
else if (countC == game.Size)
{
return(TicTacToeOutcome <Player> .NewWin(Player.CROSS, winningLine));
}
else if ((countC > 0) && (countN > 0))
{
numDraw++;
}
// Only draws if the number of draws fond
// equal to number of lines
if (numDraw == (game.Size * 2 + 2))
{
return(TicTacToeOutcome <Player> .Draw);
}
// Else undecided
return(TicTacToeOutcome <Player> .Undecided);
}
public TicTacToeOutcome <Player> GameOutcome(Game game)
{
Player winner;
bool win = false;
bool draw = false;
int winningLine = 0;
string nought = "O";
string cross = "X";
int draws = 0;
int rowCountX = 0;
int rowCountO = 0;
int colCountX = 0;
int colCountO = 0;
int dia0CountX = 0;
int dia0CountO = 0;
int dia1CountX = 0;
int dia1CountO = 0;
for (int i = 0; i < game.Size; i++)
{
for (int j = 0; j < game.Size; j++)
{
if (game.getPiece(i, j) == cross)
{
rowCountX++;
}
else if (game.getPiece(i, j) == nought)
{
rowCountO++;
}
if (game.getPiece(j, i) == cross)
{
colCountX++;
}
else if (game.getPiece(j, i) == nought)
{
colCountO++;
}
}
if (game.getPiece(i, i) == cross)
{
dia0CountX++;
}
else if (game.getPiece(i, i) == nought)
{
dia0CountO++;
}
if (game.getPiece(game.Size - 1 - i, i) == cross)
{
dia1CountX++;
}
else if (game.getPiece(game.Size - 1 - i, i) == nought)
{
dia1CountO++;
}
if (rowCountO == game.Size || rowCountX == game.Size || colCountO == game.Size || colCountX == game.Size ||
dia0CountO == game.Size || dia0CountX == game.Size || dia1CountO == game.Size || dia1CountX == game.Size)
{
win = true;
}
else if (rowCountO + rowCountX == game.Size)
{
draws++;
}
winningLine = i;
if (win)
{
break;
}
rowCountO = 0;
rowCountX = 0;
colCountO = 0;
colCountX = 0;
}
List <System.Tuple <int, int> > line = new List <System.Tuple <int, int> >();
System.Tuple <int, int> tuple;
if (rowCountO == game.Size || rowCountX == game.Size)
{
for (int i = 0; i < game.Size; i++)
{
tuple = new System.Tuple <int, int>(winningLine, i);
line.Add(tuple);
}
}
else if (colCountO == game.Size || colCountX == game.Size)
{
for (int i = 0; i < game.Size; i++)
{
tuple = new System.Tuple <int, int>(i, winningLine);
line.Add(tuple);
}
}
else if (dia0CountO == game.Size || dia0CountX == game.Size)
{
for (int i = 0; i < game.Size; i++)
{
tuple = new System.Tuple <int, int>(i, i);
line.Add(tuple);
}
}
else
{
for (int i = 0; i < game.Size; i++)
{
tuple = new System.Tuple <int, int>(game.Size - 1 - i, i);
line.Add(tuple);
}
}
if (draws == game.Size)
{
draw = true;
}
if (win)
{
if (rowCountO == game.Size || colCountO == game.Size || dia0CountO == game.Size || dia1CountO == game.Size)
{
winner = Player.Nought;
}
else
{
winner = Player.Cross;
}
return(TicTacToeOutcome <Player> .NewWin(winner, line));
}
else if (draw)
{
return(TicTacToeOutcome <Player> .Draw);
}
else
{
return(TicTacToeOutcome <Player> .Undecided);
}
}