/// <summary>
/// Play <paramref name="game"/> randomly to the end
/// Return positive if the player to make the first move won
/// Return negative if the player to make the first move lost
/// Return 0 if the game ends in a tie
/// </summary>
/// <param name="game"></param>
/// <returns></returns>
int Simulate(GlobalGame game)
{
Player activePlayer = game.ActivePlayer();
GlobalGame copy = CopyGlobalGame(game);
while (!copy.GameOver())
{
List <Spot> moves = copy.AvailableSpots;
bool moveFound = false;
// If there's a game-winning move, play it
// This shortens simulations and makes them more realistic
foreach (Spot spot in moves)
{
copy.Play(spot, false, true);
if (copy.Winner != null)
{
moveFound = true;
break;
}
copy.UndoLastMove(true);
}
// Otherwise play a random move
if (!moveFound)
{
Spot randomSpot = moves[UnityEngine.Random.Range(0, moves.Count)];
copy.Play(randomSpot, false, true);
}
}
if (copy.Winner == activePlayer)
{
return(1);
}
if (copy.Winner == null)
{
return(0);
}
return(-1);
}
void Update()
{
if (game.ActivePlayer() is AI && !game.GameOver())
{
if (game.HasNextMove)
{
if (confirmTimer <= 0)
{
Game.Confirm();
confirmTimer = confirmTime;
return;
}
else
{
confirmTimer -= Time.deltaTime;
return;
}
}
else
{
if (previewTimer <= 0)
{
Game.Preview(((AI)game.ActivePlayer()).BestMove());
previewTimer = previewTime;
return;
}
else
{
previewTimer -= Time.deltaTime;
return;
}
}
}
else
{
confirmTimer = confirmTime;
previewTimer = previewTime;
}
}
public void HandleGameStateChanged(object o, GameEventArgs e)
{
Text text = GetComponent <Text>();
if (game == null)
{
text.text = "";
return;
}
if (game.GameOver())
{
if (game.Winner != null)
{
text.text = game.Winner.Name + " wins!";
return;
}
text.text = "Tie game";
return;
}
text.text = game.ActivePlayer().Name + "'s turn";
}